Numbering

VPX Numbering

Cloud-native DID and DDI provisioning across 60+ countries with always-on fraud protection and instant activation through our self-service portal or API.

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60+ countries for DID/DDI provisioningGeographic Coverage
01/02 geographic · 03 national · 07/08/09UK Number Ranges
Instant for standard ranges · Regulated ranges subject to compliance reviewProvisioning Speed
SIP URI · PSTN forward · Webhook · HostedRouting Options
Overview

What it
does

VPX Numbering provides cloud-native Direct Inward Dial (DID) and Direct Dial-In (DDI) number provisioning for carriers, enterprises and platform builders. Virtual numbers are activated instantly upon purchase through our self-service portal or API. Where additional documentation or regulatory approval is required - such as proof of address for certain geographic ranges - activation may take slightly longer, but our provisioning team works to keep turnaround as short as possible.

Coverage spans geographic numbers (local area codes), national numbers, toll-free and non-geographic ranges across 60+ countries. For UK deployments: geographic DDIs on 01/02 ranges, national numbers on 03, non-geographic 08 ranges and direct allocations on Ofcom-allocated blocks. Every provisioned number includes always-on TDoS, Wangiri and traffic anomaly protection powered by VPX Global Insight+ - no additional configuration required.

VPX Numbering is designed for platform builders as much as end-users. If you're building a UCaaS platform, cloud PBX, click-to-call service, or communications API, the product gives you the number provisioning infrastructure to offer numbers to your own customers at scale - with a sub-account structure supporting up to 10,000 reseller accounts.

How It Works

The process,
step by step

From first peering session to live traffic - a straightforward path with no hidden complexity.

01

Number Search

Query the API for available numbers by country, area code, type (geographic, national, toll-free) and features (SMS-capable, fax, voice). Filter by specific dialling codes.

02

Instant Provisioning

Reserve and activate a number via a single API call. Call routing is configured in the same request. Standard numbers are typically live within seconds; regulated ranges may require brief additional verification.

03

Call Routing

Configure inbound call routing to: SIP URI, PSTN forward, IVR webhook (JSON payload on inbound), or VoicePro Plus hosted service. Routing changes apply within seconds via API.

04

SMS Capability

On supported number ranges, enable inbound SMS routing to webhook, email, or your application. Two-way SMS available on selected markets.

05

Fraud Monitoring

Always-on VPX Insight monitoring across your entire number estate. TDoS auto-shaping, Wangiri blocking and traffic anomaly alerts - included on every provisioned number at no extra cost.

Capabilities

Built for
performance

Every capability is designed around real-world wholesale requirements - not a feature checklist.

01Single API call

Instant API Provisioning

Reserve and activate numbers in a single programmatic call - no manual carrier ordering, no paper forms. Standard ranges go live immediately; regulated ranges are fast-tracked through our compliance workflow.

02

Global Coverage

Geographic, national, toll-free and non-geo numbers across 60+ countries. UK Ofcom-allocated blocks: 01/02, 03, 07, 08, 09 ranges available.

03

Flexible Call Routing

Route inbound calls to SIP URI, PSTN forward, webhook (JSON payload for CPaaS/IVR), or VoicePro Plus hosted service. Routing changes apply in seconds via API.

04

SMS-Capable Numbers

Inbound SMS on supported ranges with webhook delivery. Two-way SMS on 40+ markets. Enables number reuse across voice and messaging use cases.

05

Number Porting

Port-in existing numbers from other carriers. UK PAT process (Ofcom-compliant). International porting on country-specific processes. Port-out supported for outgoing migrations.

0610,000 sub-accounts

White-Label DID Platform

Sub-account structure for resellers. Provision numbers to your end customers via API or white-label portal. Up to 10,000 sub-accounts on the enterprise reseller tier.

Technical Specs

Under the
hood

Geographic Coverage60+ countries for DID/DDI provisioning
UK Number Ranges01/02 geographic · 03 national · 07/08/09 (selected)
Provisioning SpeedInstant for standard ranges · Regulated ranges subject to compliance review
Routing OptionsSIP URI · PSTN forward · Webhook (JSON) · Hosted
SMS SupportInbound on supported ranges · 40+ countries two-way
PortingUK: Ofcom-compliant PAT · International: country-specific
API ProtocolREST (JSON) · OAuth 2.0
Sub-accountsUp to 10,000 (reseller/white-label tier)
Fraud ProtectionTDoS auto-shaping · Wangiri blocking · Anomaly alerts (all included)
Number FormatE.164 for all provisioned numbers
Integration

Numbers as infrastructure

VPX Numbering treats phone numbers like cloud resources - provisioned, configured and decommissioned via API in seconds. Your platform gets numbers as a fully programmable layer.

REST API (JSON/OAuth2)
Webhook inbound routing
SIP URI routing
SMS webhook delivery
Sub-account API
Number search & reserve
Port-in management portal
Real-time CDR API
Who It's For

Built for
your operation

Three distinct profiles that get the most from this product - and why it fits each one.

Communications Platform01

UCaaS / Cloud PBX

Building or operating a cloud communications platform needing API-driven number provisioning. Provision DID/DDI numbers to business customers instantly, manage routing via API and scale the number estate programmatically.

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Enterprise · Professional02

Multi-Site Enterprise

Operating across multiple offices needing a consistent number plan with centralised management. Geographic numbers across all markets, unified routing and fraud protection without multiple carrier relationships.

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Developer Platform03

CPaaS / Communications API

Building a programmable communications API. VPX Numbering is the number infrastructure layer - instant provisioning, webhook routing, SMS capability and sub-account structure for your own customer hierarchy.

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Start a Discussion

Ready to activate Numbering?

Our solutions team responds within four business hours. Committed volume agreements, per-second billing and dedicated account management available from day one.

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