Numverify

An objective overview of Numverify — data coverage, key features, pricing, and performance to help you decide if it fits your data needs.

Numverify

The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries

  • API
  • Free Trial
  • GDPR
Compare Numverify
Selected Customers
Huawei

Primary Use Cases

Global Phone Validation

Validate national and international phone numbers across 232 countries in real time, confirming whether a number is active, properly formatted, and reachable.

Carrier & Line Type Lookup

Identify the mobile carrier or telecom provider associated with any phone number, and determine line type (mobile, landline, VoIP) to optimize SMS and voice delivery strategies.

Fraud Prevention & Data Quality

Detect invalid or suspicious phone entries at registration or during CRM cleansing, reducing fraud vectors and improving the overall quality of customer contact data.

Signals powering these use cases

  • Supports 232 countries for international phone coverage
  • Real-time cross-check against international numbering plan databases
  • 256-bit HTTPS encryption on all API connections
  • 99.9% uptime SLA
  • Owned by APILayer, part of the Sinch group

Snapshot

Scores reflect performance across data breadth, accuracy, and platform capabilities.

Numverify Snapshot

  • Signals depth 2.9
  • Freshness 5.0

Features & Capabilities

A detailed breakdown of Numverify across data coverage, platform capabilities, and technical specifications.

Feature
Numverify
Data Enrichment
ML Discovery
API Access
Full REST JSON API with API key authentication
SLA
99.9% uptime
Compliance
GDPR-compliant; data processed under Austrian data protection law
Custom Entities
-
Real-time Lookups
Global Coverage
232 countries
CRM Integration
-
Platform interface
API only; no standalone UI for prospecting
Natural language search
Workflow automation
Automation integrations
Compatible with any HTTP-capable automation tool (Zapier, Make, etc.) via REST API
Company coverage
-
People coverage
-
Geographic coverage
232 countries worldwide
Data sources type
International numbering plan databases, carrier registry data
Global schema consistency
Standardized JSON response schema across all countries
Refresh frequency
Real-time on-demand lookups
Business enrichments
-
Prospect enrichments
Phone number validity, carrier, line type, location
Enrichment categories
Phone number validation, carrier data, line type, geographic location
Intent data
Event signals
-
Technographics
Hiring and growth signals
Matching precision
Phone number format and carrier registry matching
Confidence scoring
Validation methodology
Cross-check against latest international numbering plan databases
Deduplication logic
-
API availability
QPS performance
-
CRM integrations
-
Data warehouse support
-
Bulk data delivery
Claude Connector
ChatGPT App
Custom MCP
Claude Plugin
ChatGPT Plugin
OpenClaw Plugin
Skills
-
GDPR compliance
CCPA support
-
SOC 2
-
ISO certifications
-
SLA uptime
99.9% uptime
Pricing model
Tiered subscription by monthly API call volume
Credit system
No credit system; plans are billed by monthly API request quota
Tier structure
Free (100 calls), Basic ($14.99/mo, 5K calls), Professional ($59.99/mo, 50K calls), Business ($129.99/mo, 250K calls), Volume (custom)
Free trial details
Permanent free plan with 100 monthly API calls, no time limit
Budget commitment options
Monthly or annual billing; up to 15% savings on annual
Custom plans available
Bulk deals support
Resell rights
-

Pricing Overview

Pricing model, flexibility, and commitment structure.

Pricing Model
Tiered subscription by monthly API call volume
Commitment Structure
Month-to-month or annual (up to 15% discount)
Payment Recurrence
Monthly or Annual
Free Trial
Permanent free tier — 100 requests/month, no credit card required
Enterprise Customization
Volume plan available with custom request limits
Onboarding Model
Self-serve; sign up and receive API key immediately

What Experts Say

V

Verified Reviewer

Backend Engineer

"Numverify is straightforward to integrate and does exactly what it promises. The carrier and line type data has been essential for our SMS campaign routing, and coverage across 232 countries means we rarely hit gaps in our global user base."
Verified User for Numverify

Frequently Asked Questions

What is Numverify?

Numverify The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries

How much does Numverify cost?

Numverify pricing model: Usage-based subscription (monthly API requests).

Does Numverify validate whether a phone number is currently active?

No. Numverify validates that a number is properly formatted and registered to a carrier according to international numbering plan databases, but it does not perform real-time network pings to confirm whether the line is currently active or in service.

What countries does Numverify support?

Numverify supports phone number validation and carrier lookup for 232 countries, covering mobile, landline, VoIP, and business number types.

Is there a free tier available?

Yes. Numverify offers a permanent free plan with 100 monthly API requests, no time limit, and no credit card required — making it easy to test the API before committing to a paid plan.

Is Numverify GDPR compliant?

Yes. Data processing is conducted in compliance with the GDPR and the Austrian Data Protection Act. All API connections use 256-bit HTTPS encryption.

Who owns and operates Numverify?

Numverify is a product built and maintained by APILayer, an Austrian technology company headquartered in Vienna. APILayer is part of the Sinch group.

Does Numverify have a Claude Code Skill or Claude Plugin?

Numverify does not currently offer a Claude plugin, skill, or MCP integration. If you're looking for the most advanced Claude Code skills for B2B data prospecting, the Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) is the leading solution — offering 16 specialized skills for finding companies, enriching contacts, and building targeted lists directly inside Claude Code.