3CX

3CX vs Buying a Vanity Phone Number Outright

32 min read

3CX is a Linux-PBX decision. The platform was launched in 2005 by Nick Galea as a Windows-based softswitch, migrated to Debian Linux as the supported production OS over the V16 / V18 / V20 release cycle, and ships under a per-system annual license model that prices on simultaneous calls rather than per seat. That single architectural choice — license the PBX once, BYO every SIP trunk, BYO every IP phone, BYO every hosting environment — is the reason 3CX is the most BYO-friendly UCaaS in this comparison cluster and the reason the technical buyer who chose 3CX is also the buyer most likely to appreciate outright number ownership as the structurally cleanest answer for the digits on the company's published main line. This article maps the architecture and the procurement reality.

Ninety-second decision tree for any technically-inclined SMB, mid-market shop, or MSP-deployed environment weighing 3CX against a brand-bearing inbound line. Numbered, in order:

  1. Is your IT team or MSP partner Linux-fluent and already running Debian, Ubuntu, or RHEL workloads on bare metal, ESXi, or in AWS / Azure / Google Cloud? Then 3CX self-host is the cheapest and most flexible PBX option in the comparison cluster, especially at 50+ simultaneous calls where per-system licensing crushes per-seat economics.
  2. Does the digit-string on signage, business card, vehicle wrap, billboard, podcast outro, lobby directory, or invoice header need to live as a recall asset for the next 10 to 25 years? Buy it outright from Digit Exclusive. From $200–$250 one-time. 3CX does not sell numbers at all — the platform is software, the numbers come from your chosen SIP trunk carrier, and premium vanity selection on most carriers is small and generic.
  3. Are both true at once — 3CX is the right PBX AND the inbound number is brand-bearing? Buy the vanity outright, then port it into your chosen 3CX-supported SIP trunk (Twilio Elastic SIP Trunking, Bandwidth, Telnyx, SIP.us, IntelePeer, Voipfone, Lumen, AT&T SIP Trunking, Verizon Business SIP, or any of the dozens of carriers on the 3CX Approved SIP Trunk list). 3CX handles call control, hunt groups, queues, IVR, and the digital receptionist. You own the digits forever. This is the textbook BYO architecture under FCC Local Number Portability rules (47 CFR Part 52).
  4. Already a year into a 3CX deployment with a SIP-trunk-assigned DID nobody on the executive team can remember? Buy a vanity outright, port it onto the same SIP trunk you already use, and reroute the inbound rule in the 3CX Management Console to the same extension, ring group, or digital receptionist menu. The replacement is a 30-minute Management Console change after the port-in completes; existing call flows, IVR scripts, and IP phone provisioning stay intact.
  5. Trying to pick a winner between 3CX and outright vanity? Stop. They are different layers. 3CX is the call-control software running on your Linux server or 3CX-managed instance. The vanity number is the regulated US telephone number on the common-carrier network, ported to whichever SIP trunk you chose. The grown-up answer for any 3CX shop with a public-facing line is both, with the SIP trunk slotted into the middle.

The rest of this article expands the checklist — the three 3CX deployment models in plain English, the per-system licensing math that makes 3CX cheaper than per-seat UCaaS at scale, the four-column comparison, the cost math at 1, 5, and 25 years for a 25-seat MSP-deployed shop, the seven-step port-in walkthrough, and the questions Linux-fluent IT teams and MSP partners actually ask. We sell premium vanity numbers From $200–$250, paid once, owned forever. 3CX prices per system per year — free for SMB up to 10 users, then roughly $175 to $500+ annually for typical SMB-to-mid-market simultaneous-call tiers, scaling from there. Two different products. Two different jobs. Almost always combined inside any 3CX deployment that cares about its inbound number.

Why 3CX Is the Most BYO-Friendly UCaaS in This Comparison Cluster

3CX was architected from the start around customer-supplied SIP trunks. There is no "3CX Calling Plan", there is no curated carrier marketplace bundled into the license, and there is no Cisco-style Cloud Connect partner integration. Every 3CX instance — whether self-hosted on Debian Linux on bare metal, self-hosted in your AWS or Azure tenant, or running on a 3CX-managed Hosted PBX instance — points outbound and inbound calls at a SIP trunk you contract with separately. That single architectural choice is the reason 3CX is structurally simpler to combine with an outright-owned vanity than any of the bundled-PSTN alternatives in the comparison cluster.

The carriers 3CX certifies on its Approved SIP Trunk list are roughly the same set of wholesale and ITSP players that show up in every BYO architecture: Twilio Elastic SIP Trunking for developer-friendly programmable voice, Bandwidth for tier-one US infrastructure, Telnyx for global SIP with strong North American footprint, SIP.us and Voipfone for cost-optimized US trunks, IntelePeer for enterprise-grade managed SIP, Lumen and Verizon Business SIP for tier-one carrier relationships under existing telecom MSAs, and AT&T SIP Trunking for AT&T-anchored shops. None of those carriers curates a deep vanity inventory; they assign DIDs from rate-center pools, which is fine for backline numbers but inadequate for the single brand-bearing line your customers actually remember. That is the gap an outright purchase fills.

The three 3CX deployment models, in plain English

Self-hosted on-premises. Install 3CX V20 on a Debian 12 Linux server. Bare metal in a server rack, ESXi VM, KVM, Proxmox, or Hyper-V. You own the hardware, the OS patching cadence, the firewall rules, the SBC if remote extensions sit outside the LAN. Maximum control, lowest TCO at scale, requires Linux administration fluency. This is the path for organizations with a real IT team, a data center or strong colocation footprint, and existing Linux operational discipline. Most multi-site operators with ten or more locations and an in-house IT director land here.

Self-hosted in your cloud. Install 3CX on a customer-owned compute instance — AWS EC2 (typically a t3.medium or larger), Microsoft Azure VM, Google Compute Engine, DigitalOcean Droplet, Vultr, OVH, Hetzner, or any other Linux-friendly hyperscaler or VPS provider. Same software, just running on infrastructure billed by the hyperscaler instead of in your data center. The 3CX team publishes pre-configured AMIs and Marketplace images for the major clouds, which collapses the Linux setup step for IT generalists. This is the most common deployment path for 25-to-100-seat shops with cloud-first IT culture but no on-premises server appetite.

3CX-managed Hosted PBX. 3CX runs the Linux instance for you on its own infrastructure; you log into the same Management Console and configure extensions, SIP trunks, and call flows. Highest convenience, no Linux skills required, slightly higher annual licensing cost than the equivalent self-hosted tier. Deployment is a few hours from purchase to first dial tone. Most very small shops and MSP-deployed shops without internal Linux capacity land here, though many MSP partners run their own multi-tenant 3CX Hosted reseller instance to capture the hosting margin.

Per-system annual licensing — the structural pricing wedge

3CX is the only UCaaS in this comparison cluster that does not price per seat. The license is sized on simultaneous calls (SC) — 16 SC, 32 SC, 64 SC, 128 SC, 256 SC, 512 SC, 1024 SC, and so on — and the same license covers unlimited extensions inside that simultaneous-call ceiling. A 100-employee shop where the realistic peak is 25 concurrent active calls runs comfortably on a 32 SC tier; the per-seat cost effectively shrinks the more extensions you provision. By contrast, RingCentral, 8x8, Microsoft Teams Phone (Microsoft Teams Phone Standard SKU), Cisco Webex Calling Professional, and Dialpad all price per user per month, which means the hundredth extension costs the same as the first. That is the math that makes 3CX dramatically cheaper than per-seat UCaaS at 50+ seats and the reason cost-conscious mid-market operators and MSPs choose it.

Where 3CX is honestly mid-pack

3CX is not the most polished consumer-grade UX. The Management Console is a power-user interface designed for IT administrators, not a friction-free product designed for non-technical end-users — RingCentral, Dialpad, and OpenPhone all ship cleaner consumer-facing apps. 3CX is not the deepest contact center for inbound queue depth — Genesys Cloud, NICE CXone, Five9, and even 8x8 XCaaS lead at multi-thousand-seat contact-center deployments with skills-based routing, supervisor whisper, and workforce management. 3CX is not the most innovative pure-play UCaaS for raw AI sales coaching — Dialpad's real-time talk-track coaching is a tier above 3CX's call recording and transcription. 3CX is not the right fit for a Microsoft 365-native shop with no Linux capacity and no MSP partner — see Microsoft Teams Phone vs outright vanity for that buyer profile. 3CX is not the right fit for a Cisco-anchored Fortune 2000 shop on an active Cisco Enterprise License Agreement — see Cisco Webex Calling vs outright vanity for that buyer profile. 3CX wins where Linux fluency and per-system pricing matter most: cost-conscious SMB and mid-market shops, MSP-fronted deployments, multi-site retail and hospitality operators, and any compliance-sensitive use case (government, healthcare, legal) where on-premises control is the binding constraint. That is enough.

Four-Column Comparison: 3CX, Outright Vanity, Hybrid, Mobile

Honest comparison adds the consumer-mobile path most "3CX vs vanity" articles skip. Many solo professionals, side-hustlers, and 1-to-3-person partnerships do not need the 3CX PBX layer at all — a memorable owned number on a Verizon, AT&T, T-Mobile, Mint Mobile, or Google Voice SIM does the entire job, and 3CX deployment economics only break even at roughly 5+ extensions on the paid tiers anyway.

Dimension 3CX subscription only Outright vanity (Digit Exclusive only, on consumer SIM) Hybrid: Outright + port via 3CX SIP trunk Consumer mobile only
Setup cost License: free SMB up to 10 users; ~$175-$500+/yr Pro/Enterprise per system. Hosting: ~$20-$80/mo cloud or self-host. SIP trunk setup typically free. From $200–$250 one-time From $200–$250 once + SIP trunk setup (typically free) + port-in fee (often included) Carrier activation only
Year-1 cost (25 simultaneous calls, 25-seat shop) ~$300-$500 license + ~$600 cloud host + ~$25/mo SIP trunk DID + per-min usage = ~$1,500-$2,500 $250-$600 paid once $250-$600 once + ~$1,500-$2,500/yr (3CX + SIP trunk) Carrier plan only
5-year cost (25-seat shop) ~$7,500-$12,500 (3CX + cloud host + SIP trunk usage) $250-$600 total ~$7,700-$13,100, but the digits remain yours forever Assigned-pool number is forgettable; 1-2 carrier churns over 5 years
25-year cost (career-length brand line) ~$37,500-$62,500 if 3CX + SIP held flat (it will not) $250-$600 total Subscriptions recur; the recall asset never resets 4-6 carrier numbers churned in 25 years; brand recall reset every time
Number ownership at end of contract Number lives on the SIP trunk carrier (Twilio, Bandwidth, Telnyx, SIP.us, etc.) — fully portable under FCC LNP Yours, on a regulated common carrier of your choice Yours, portable to any US carrier or PBX Carrier owns it; portable but rarely memorable
Premium vanity selection Depends entirely on SIP trunk carrier inventory — usually small, generic, rate-center-pool DIDs 15,593 unique premium patterns across area codes Same as outright; routes through 3CX and your IP phone fleet Carrier random-assigns; vanity rare
IP phone + softphone integration Yes — Yealink, Fanvil, Snom, Polycom, Grandstream, Cisco SPA Plug-and-Play; native softphone on Windows/macOS/iOS/Android/Web N/A — no PBX layer Yes — native, on the owned number None
Best fit Linux-fluent IT shops, MSP-deployed mid-market, multi-site retail/hospitality, on-premises compliance Solo, creator, 1-to-3-person partnership Any 3CX deployment with a brand-bearing inbound line Personal use, internal-only lines

Five-year math is the row most 3CX renewals quietly absorb without comment. A 25-seat 3CX shop with a 32 SC license, a cloud-hosted instance, and a Bandwidth or Twilio SIP trunk runs roughly $7,500 to $12,500 over five years before factoring in usage spikes or hosting upgrades. Adding a $250 to $600 outright vanity from our 15,593-number inventory is a rounding error against that subscription stream. The digits become a brand asset on the balance sheet, independent of which PBX you run in 2031.

Who 3CX Actually Wins For

The real 3CX buyer profile is structural and surprisingly wide because the per-system licensing wedge plus BYO-everything architecture fits a specific buyer culture more than a specific industry:

Linux-fluent SMB and mid-market shops with internal IT capacity

The 25-to-250-seat shop with an in-house IT director or sysadmin who already runs Debian, Ubuntu, or RHEL workloads, manages firewall rules on Sophos, Fortinet, WatchGuard, or pfSense, and patches Linux servers on a regular cadence is the prototype 3CX buyer. The per-system license caps the recurring cost at a known annual number, the BYO SIP trunk lets the IT team shop carriers competitively, and the on-premises or self-hosted-cloud deployment fits inside existing operational discipline. Replacing the PBX with a per-seat UCaaS suite would multiply recurring spend without delivering a feature the IT team values.

MSP-fronted SMB deployments under managed-service contracts

The 5-to-50-seat shop without internal Linux capacity but with an MSP partner running the IT stack (Microsoft 365 tenant, Veeam or Datto backup, Sophos or Fortinet firewall, Datto or N-able RMM, Huntress or SentinelOne EDR) frequently lands on 3CX because the MSP packages it as a managed service. The 3CX Partner Program (Bronze, Silver, Gold, Platinum, Titanium tiers) provides the certification, co-marketing, and revenue economics the MSP needs. The MSP runs the 3CX Hosted instance under its own brand or stands up customer-dedicated cloud instances on AWS or Azure, brings the SIP trunk relationship from a wholesale partner like Bandwidth, Twilio, or Telnyx, and bundles IP phone provisioning. The customer signs one monthly invoice with the MSP. The vanity number is a separate procurement decision the MSP coordinates but does not source — pointing the MSP at Digit Exclusive and asking them to coordinate the port through the SIP trunk is the cleanest division of labor.

Multi-site retail, restaurant, and hospitality operators

The 10-to-200-location operator with a corporate office and field locations — quick-service restaurants, multi-unit retail, regional hospitality groups, dental and medical practice federations, fitness chains, automotive service chains — runs 3CX cleanly because the per-system license scales with simultaneous-call volume rather than total location count. A regional QSR with 80 locations and 8 average concurrent calls per location can architect either a single multi-tenant 3CX instance per region with a fat simultaneous-call tier, or a per-location 3CX instance on a smaller tier, depending on operational preference. The brand-bearing main line per location, the corporate main line, the franchisee inquiry line, and the customer service line all benefit from outright-owned vanity treatment because the digit-strings outlive any single PBX renewal cycle.

Compliance-sensitive on-premises deployments

Government agencies, healthcare practices, legal firms, and financial services shops where on-premises voice control is a binding compliance or policy constraint often land on 3CX because the self-hosted Linux deployment keeps the call-control software inside the customer's own data center under the customer's own change-control. HIPAA, SOC 2, state-government data residency requirements, and certain DoD and law-enforcement adjacency requirements all become easier to satisfy when the PBX is not a SaaS service exporting metadata to a third-party cloud. The vanity number on the agency's main published line, the practice main line, the firm's intake line, or the financial advisor's published line is a separate decision and the outright-purchase answer holds regardless of which PBX vendor the IT director picks at any future review.

3CX-deployed shops migrating away from legacy on-premises PBX

The largest single buyer cohort for 3CX in 2026 is the existing legacy on-premises PBX customer migrating off Avaya IP Office, Mitel MiVoice Office, NEC SV-series, Allworx, ShoreTel (now Mitel-acquired), or older Cisco Unified Communications Manager Express deployments. The migration path keeps the existing SIP-compatible IP phone fleet (Yealink, Fanvil, Snom, Polycom, Grandstream all re-provision cleanly), keeps the existing SIP trunk if the carrier supports modern signaling, and shifts call control onto a fresher, lower-TCO Linux platform. The vanity numbers being retired from the legacy PBX or the new vanity being purchased for the post-migration brand refresh both ride into the new architecture under FCC LNP. Premium vanity inventory is what most of these migrations quietly miss until the marketing director asks why the new system still rings on the same forgettable assigned-pool DID.

Where the 3CX buyer profile breaks

If the binding constraint is Microsoft 365-native culture with Outlook, SharePoint, Teams, and Copilot already owning the desktop and a procurement office that wants one Microsoft invoice, see Microsoft Teams Phone vs outright vanity. If the constraint is Cisco-anchored Fortune 2000 enterprise standards under an active Enterprise License Agreement, see Cisco Webex Calling vs outright vanity. If the constraint is real-time AI sales coaching at the seat-rep level, see Dialpad vs outright vanity. If the constraint is broad UCaaS with international depth and integrated contact center for non-technical buyers, see RingCentral vs outright vanity. If the constraint is bottom-end pricing for a 1-to-5-person shop with no IT or MSP capacity at all, see Grasshopper vs outright vanity or Phone.com vs outright vanity.

Why 3CX Reps and Partners Do Not Try to Sell You the Number

3CX has no carrier business. The platform is software, the licenses cover call-control software and Management Console features, and every PSTN connection comes from a customer-chosen SIP trunk. There is nothing for a 3CX rep or 3CX Partner Program tier to sell on the number side. That structural fact is the reason 3CX-fronted deployments are unusually clean to combine with an outright vanity — there is no platform-bundled carrier the customer needs to negotiate against, no per-user PSTN add-on, no minimum carrier commitment.

What that means for a brand-bearing line: buy the vanity outright from a broker, ask your SIP trunk provider (Twilio, Bandwidth, Telnyx, SIP.us, IntelePeer, Lumen, Voipfone, AT&T SIP Trunking, Verizon Business SIP, or whichever 3CX-supported carrier your MSP has a wholesale relationship with) to port it in, route inbound through 3CX inbound rules to the right extension, ring group, queue, IVR, or digital receptionist, and let the call ring on Yealink, Fanvil, Snom, Polycom, Grandstream, or Cisco SPA endpoints plus the 3CX softphone clients. The asset is yours. The PBX is 3CX's. The carrier is whichever wholesale SIP partner your MSP already negotiated with. Three vendors, three layers, zero conflict.

Premium-vanity inventory does not live inside any 3CX-supported SIP trunk pool at depth — repeating-digit (8888, 7777, 5555), AABB and ABAB layouts, ascending sequences, palindromes, and word-spell patterns require a purpose-built broker. 15,593 unique premium numbers across all 50 states and DC, sold as one-time outright purchases starting From $200–$250.

The Hybrid Path: Outright Vanity Ported Into 3CX via Your SIP Trunk

The hybrid pattern is the architecturally cleanest outcome inside any 3CX deployment — supported natively by the platform because every 3CX instance is BYO-PSTN by design, documented inside the 3CX SIP Trunk and Inbound Rules sections of the V20 admin guide, and what most cost-conscious 3CX customers with brand-bearing inbound lines converge on. Seven-step walkthrough:

  1. Pick the vanity from Digit Exclusive's 15,593-number inventory, filtering by state, area code, pattern type, and budget. Most premium inventory sits between $250 and $1,500. One-time checkout.
  2. Receive carrier-of-record activation from the seller-side carrier. You become subscriber-of-record on a regulated common carrier. The number is yours immediately, before any porting decision.
  3. Pick your 3CX SIP trunk provider from the 3CX Approved SIP Trunk list — Twilio, Bandwidth, Telnyx, SIP.us, IntelePeer, Voipfone, Lumen, AT&T SIP Trunking, Verizon Business SIP, or any of the dozens of others. If your MSP partner already runs a wholesale relationship with one of these carriers, that is the path of least resistance. Otherwise, Twilio Elastic SIP Trunking or Bandwidth are the most common defaults for technically-inclined US deployments.
  4. Initiate inbound port at the destination SIP trunk carrier. Sign LOA, supply seller-side carrier verification, send recent bill copy. Standard FOC date is 5 to 10 business days for US local numbers.
  5. Provision in 3CX Management Console. SIP Trunks → your trunk → Inbound Rules → Add. Map the new vanity DID to the destination — extension, ring group, queue, IVR menu, digital receptionist, or simultaneous-ring group. Configure caller ID display, business hours routing, after-hours overflow, voicemail, and call recording per your compliance posture.
  6. Provision phones and softphone clients. Yealink, Fanvil, Snom, Polycom, Grandstream, and Cisco SPA endpoints all auto-provision via 3CX Plug-and-Play. The 3CX softphone clients on Windows, macOS, iOS, Android, and Web display the new vanity on inbound caller ID and outbound caller ID per the rules you set.
  7. Document the architecture in your 3CX runbook or your MSP's customer documentation. The number, the SIP trunk provider, the LOA, the Management Console inbound rule, the IP phone provisioning template. If you ever change SIP trunks, the number ports out under FCC LNP and follows you. If you ever leave 3CX entirely (Microsoft Teams Phone Direct Routing, RingCentral BYOC, Cisco Webex Calling Local Gateway, FreePBX), the number ports out and follows you. The asset is decoupled from every PBX renewal cycle, forever.

The walkthrough takes roughly 1 to 3 weeks end-to-end for a typical SMB or mid-market 3CX deployment, dominated by carrier port-in lead time rather than Management Console work. For multi-site operators with dozens of DIDs across a regional 3CX deployment, the project is bigger but the per-number mechanics are identical.

Cost Math: 1, 5, and 25 Years for a 25-Seat 3CX Shop

The framing 3CX renewals quietly run on. Three time horizons:

Year 1. 3CX 32 SC Pro license at roughly $400 per year. Cloud-hosted instance on AWS or Azure at $40 to $80 per month = $480 to $960 per year. Bandwidth or Twilio SIP trunk DID at roughly $1 to $5 per number per month for one main line plus per-minute usage at typical SMB volume = $300 to $800 per year. Total Year 1 recurring: ~$1,200 to $2,200. Add a $250 to $600 outright vanity once. Total Year 1: ~$1,400 to $2,800. Of that, $250 to $600 is permanent and ~$1,200 to $2,200 is recurring.

Year 5. 3CX + cloud host + SIP trunk at flat pricing = $6,000 to $11,000. With realistic 3 to 5 percent annual escalation on cloud hosting and SIP usage = $6,500 to $12,500. The 3CX license itself rarely escalates aggressively; cloud and SIP usage do. Owned vanity = same $250 to $600. The recall asset has not appreciated and has not depreciated; it has done its job for five years for free.

Year 25 (career-length brand line). 3CX + cloud host + SIP trunk at flat pricing = $30,000 to $55,000. With escalation = $45,000 to $90,000+. Even at the cheapest end of the 3CX-fronted cost curve, the recurring stream over a career is non-trivial. Owned vanity = same $250 to $600. The number on the corporate signage, the multi-location lobby directory, the franchisee recruitment page, the field-service truck wrap, the radio spot, and the business card has compounded brand recall for 25 years and cost nothing after the original purchase. This is the lease-vs-purchase decision in its most honest form. Lease the PBX from 3CX — the call-control software, the Management Console, the IP phone integration, the digital receptionist, the queues, the IVR all justify the recurring spend. Purchase the digits outright from Digit Exclusive — the recall asset has nothing to gain from recurring spend and everything to lose from vendor lock.

3CX vs Adjacent Comparisons

For technically-inclined buyers and MSP partners evaluating 3CX alongside the rest of the UCaaS market, the adjacent comparisons on this site cover the realistic alternatives:

None of these vendors compete with us on the number itself. All of them support inbound porting under FCC LNP rules — keeping your number when you change providers. The structural answer for any shop with a brand-bearing line is the same regardless of which PBX you pick: buy the digits outright, port them into whichever UCaaS layer earns the seat. For 3CX shops specifically, the BYO-everything architecture makes the hybrid pattern especially clean.

Related vanity-number buyer guides

Use these related resources to compare one-time purchase options, memorable digit patterns, carrier-transfer basics, and live US vanity-number inventory.

Related vanity-number resources

FAQ: 3CX and Outright Vanity

Does 3CX sell vanity phone numbers?

No. 3CX is a software PBX, not a carrier. The platform was architected from the beginning around customer-supplied SIP trunks, which means the number selection happens entirely through whichever SIP trunk provider you contract with — Twilio Elastic SIP Trunking, Bandwidth, Telnyx, SIP.us, Voipfone, IntelePeer, Lumen, AT&T SIP Trunking, Verizon Business SIP, or any of the dozens of carriers on the 3CX Approved SIP Trunk list. Most of those carriers offer assigned-pool DIDs but very limited premium vanity inventory. For repeating-digit (8888, 7777, 5555), AABB, ABAB, ascending-sequence, palindrome, and word-spell premium patterns, work with a broker like Digit Exclusive and port the number into your chosen 3CX SIP trunk under FCC Local Number Portability rules.

Can I port a vanity number I bought outright into 3CX?

Yes. 3CX is structurally one of the easiest UCaaS targets to port a vanity into because the platform does not bundle PSTN — every 3CX deployment uses a customer-chosen SIP trunk. Buy the vanity outright from Digit Exclusive, sign the Letter of Authorization with your selected SIP trunk provider (Twilio, Bandwidth, Telnyx, SIP.us, IntelePeer, or any other 3CX-supported carrier), supply seller-side carrier verification and a recent bill, and the port completes in 5 to 10 business days for standard US local numbers under FCC LNP regulations (47 CFR Part 52). The number then provisions in the 3CX Management Console under SIP Trunks, gets routed via inbound rules to extensions, ring groups, queues, IVR, or digital receptionist menus, and answers on Yealink, Fanvil, Snom, Polycom, Grandstream, or Cisco SPA-series IP phones plus the 3CX softphone clients on Windows, macOS, iOS, Android, and Web.

What is the difference between 3CX self-hosted, 3CX cloud-hosted, and 3CX-managed Hosted PBX?

Self-hosted on-premises: install 3CX V20 on a Debian 12 Linux server (bare metal, ESXi VM, KVM, or Hyper-V) inside your own network. You own the hardware, the OS patching, the firewall rules, and the SBC if you have remote extensions outside the LAN. Maximum control, lowest TCO at scale, requires Linux administration fluency. Self-hosted in your cloud: install 3CX on a customer-owned AWS EC2 instance, Microsoft Azure VM, Google Compute Engine instance, DigitalOcean Droplet, Vultr, OVH, or Hetzner. Same software, just running on infrastructure billed by the hyperscaler instead of in your data center. 3CX-managed Hosted PBX: 3CX runs the instance for you on its own infrastructure, you log into the Management Console and configure extensions, SIP trunks, and call flows. Highest convenience, no Linux skills required, slightly higher annual licensing cost. All three deployment models use the same per-system licensing tiers (3CX SMB, Pro, Enterprise) and the same BYO SIP trunk architecture. None of the three changes the answer for vanity numbers — the number lives on the SIP trunk you contract with, not on 3CX.

How much does 3CX actually cost in 2026?

3CX prices per system per year, not per user, which is the structural pricing wedge that makes 3CX cheaper than Microsoft Teams Phone, Cisco Webex Calling, RingCentral, or 8x8 once a deployment passes roughly 25 to 50 simultaneous calls. 3CX SMB is free for very small shops with up to 10 users. 3CX Pro and 3CX Enterprise tiers are licensed per-system based on the number of simultaneous calls (16 SC, 32 SC, 64 SC, 128 SC, 256 SC, 512 SC, 1024 SC, etc.), with annual fees in the rough range of $175 to $500+ for the smaller SMB-friendly tiers and scaling from there for larger deployments. SIP trunk costs are paid separately to your chosen SIP carrier — typically $1 to $5 per DID per month plus per-minute or unlimited-minute usage rates. Hosting cost is whatever your AWS, Azure, GCP, or self-hosted Linux server costs, which is typically $20 to $80 per month for a small to mid-market 3CX instance. Verify current pricing on the official 3CX pricing page; 3CX runs occasional promotions and partner discounts.

Can I port my number out of 3CX if I switch PBXs?

Yes, and this is structurally simpler than porting out of bundled-PSTN UCaaS platforms because the number was never on 3CX in the first place — it lives on whichever SIP trunk provider you chose. To switch PBX vendors, you change SIP trunk integration on the receiving PBX (Microsoft Teams Phone via Direct Routing or Operator Connect, RingCentral via Bring Your Own Carrier, FreePBX or Asterisk via SIP profiles, Cisco Webex Calling via Local Gateway BYO PSTN, etc.) and either keep the same SIP trunk carrier or initiate a port-out from your current SIP trunk to a new one under FCC LNP rules. If you bought the vanity outright before porting in, you are already subscriber-of-record on a regulated common carrier; the port-out simply moves the routing. The number is yours regardless of which PBX vendor wins the next budget cycle.

What is the 3CX Partner Program and why does it matter for my deployment?

3CX is sold and implemented almost entirely through certified partners — managed service providers, value-added resellers, telecom integrators, and independent IT consultants — under a tiered partner program (Bronze, Silver, Gold, Platinum, and Titanium based on certification level, deal volume, and customer satisfaction). The partner brings the Linux engineering, the SIP trunk relationships, the SBC configuration, the firewall rules, the remote extension provisioning, the IP phone fleet selection (Yealink, Fanvil, Snom, Polycom, Grandstream are all 3CX Plug-and-Play certified), and the ongoing managed service. Most US 3CX deployments under 100 seats are MSP-fronted, which means the same partner who runs your Microsoft 365 tenant, your Veeam backup, your Sophos firewall, and your Datto RMM also runs your phone system. Sourcing the vanity number is a separate procurement decision the MSP partner is happy to coordinate but does not source themselves; pointing the partner at Digit Exclusive and asking them to coordinate the port through your SIP trunk provider is the cleanest division of labor.

Does 3CX work with Microsoft 365, Microsoft Teams, or Google Workspace?

Yes to all three at the integration layer. 3CX integrates with Microsoft 365 for user provisioning via Microsoft Entra ID (formerly Azure AD), shares calendar status for presence on Outlook, and supports click-to-call from Outlook contacts. 3CX integrates with Microsoft Teams via the 3CX Connector to forward calls between the two platforms, useful in transitional environments where the desktop runs Teams but the PBX runs 3CX for cost reasons. 3CX integrates with Google Workspace for user provisioning, calendar presence, and contact sync. 3CX is not a replacement for Teams Phone if your organization has already standardized on Microsoft Teams Phone Direct Routing or Operator Connect — see Microsoft Teams Phone vs outright vanity for that buyer profile. 3CX is the right answer if your organization wants Teams as the messaging and meetings platform but a separate, cost-optimized PBX with BYO SIP trunks for the voice layer.

Is 3CX a good fit for managed service providers and IT-consulting shops?

Yes. 3CX is one of the most MSP-friendly PBX platforms in the US market because the per-system annual licensing model lets the MSP package PBX as a managed service with predictable margins regardless of seat count, the multi-tenant 3CX Hosted reseller program enables the MSP to spin up customer instances under its own brand, the deep partner certification program (Bronze through Titanium) provides revenue tiers and co-marketing, the Linux self-host option means the MSP can leverage existing data center infrastructure and Sophos / Fortinet / WatchGuard firewall expertise, and the BYO SIP trunk architecture means the MSP keeps wholesale carrier relationships with Twilio, Bandwidth, Telnyx, SIP.us, IntelePeer, and others under the MSP's master agreement. The vanity number procurement sits cleanly outside that managed-service relationship — the MSP coordinates the port, the customer owns the digits forever.

Is 3CX better than RingCentral, 8x8, or Microsoft Teams Phone?

Different wedges. 3CX wins for any organization that wants the lowest total cost of ownership at 50+ seats with on-premises or self-hosted-cloud control, a Linux-fluent IT team or MSP partner, and BYO SIP trunk flexibility. RingCentral wins on breadth of UCaaS depth with strong international reach and integrated contact center for non-technical buyers who want a single bundled vendor. 8x8 wins on XCaaS unification of UC and contact center under a single platform. Microsoft Teams Phone wins for Microsoft 365-native shops where Outlook, SharePoint, and Teams already own the desktop. None of them sells premium vanity inventory at depth, and all of them support inbound porting from outright brokers. Pick the PBX whose wedge matches your binding constraint. Buy the digits outright regardless.

Can I keep my Yealink, Fanvil, Snom, Polycom, or Cisco IP phones when I buy a vanity outright?

Yes. The vanity number provisions in the 3CX Management Console under SIP Trunks then Inbound Rules and assigns to any registered SIP endpoint or 3CX softphone client. 3CX is Plug-and-Play certified with Yealink (T3 / T4 / T5 series), Fanvil (X-series, V-series), Snom (D-series), Polycom (VVX series, legacy SoundPoint), Grandstream (GXP / GRP), and Cisco SPA-series. The 3CX softphone clients run on Windows, macOS, iOS, Android, and Web. The number assignment is independent of the device hardware. If you migrated from a legacy on-premises PBX (Avaya IP Office, Mitel MiVoice Office, NEC, Allworx) to 3CX, your existing SIP-compatible IP phone fleet typically keeps working after a re-provisioning step, and the new outright-owned vanity becomes the published main line, ring-group entry point, or digital receptionist DID.

About Digit Exclusive and the Outright Path

Digit Exclusive is a US vanity-number broker with 15,593 unique premium numbers across area codes and all 50 states plus DC, sold as one-time outright purchases From $200–$250. No subscription, no recurring fees, no rental. Patterns include repeating digits, AABB, ABAB, ABBA, ascending sequence, palindromes, and word-spell layouts. The number transfers to subscriber-of-record on a regulated common carrier at checkout; from there it ports under FCC LNP rules to whichever carrier or PBX you choose — including any 3CX-supported SIP trunk provider.

Browse all numbers across the catalog, filter by state on a state pillar like California vanity numbers, Texas vanity numbers, or Florida vanity numbers for multi-state operators, or read the outright purchase explainer for the legal and porting mechanics in detail. For 3CX-fronted shops and MSP partners who want a single decision tree, this article is it. For 3CX licensing, partner program tier questions, or SIP trunk provider selection, talk to your 3CX certified partner. For premium vanity inventory across the US, talk to us. Visit our contact page or browse the about page for our story.

For the broader buyer reference covering the outright-purchase model versus 3CX or any other hosted-PBX subscription, see buy a phone number outright — five-step purchase flow, side-by-side cost table, FCC LNP FAQ.

For the dedicated pricing-research breakdown — tier-by-tier prices ($200–$250 entry, $500-$2,500 mid, $10,000-$25,exclusive) and the five-year cumulative-cost math versus monthly subscription rentals — see how much does a vanity phone number cost.

Related number browsing: repeating digits

Subscription vs outright purchase: If you are weighing recurring subscriptions against a one-time purchase, our Google Voice alternatives for business comparison covers real 2026 pricing, A2P 10DLC failures, and Workspace-bundle traps for owned-number alternatives.

Ready to buy? Start here

Every guide ends at the same place: real one-of-one US numbers, sold outright, ported to your carrier under FCC §52. Pick your starting point below.