Numverify
Global phone number validation API
Numverify gives you accurate phone number validation, carrier, location, and line type data in a single API call. Validate national and international numbers, keep your customer data clean, and reduce undelivered messages with real-time phone intelligence.
NUMBER VERIFICATION
Know The Details Behind
Every Phone Number
Easy to integrate
Ship phone validation quickly with a simple REST API and lightweight JSON responses. Add your API key, pass a phone number to the endpoint, and start receiving structured phone intelligence.
Global coverage
Validate international phone numbers across 232 countries using country-specific international dialing codes and regularly updated numbering plans.
Advanced phone intelligence
Go beyond a simple valid or invalid result. Get country, location, carrier, line type, and standardized local and international formats from a single lookup.
Secure & reliable
Connect through 256-bit HTTPS encryption and integrate Numverify into your applications with a straightforward API built for production use.
232
Countries supported
Real-time
Phone number
validation & lookup
256-bit
HTTPS encryption
JSON
Lightweight API
responses
Flexible Plan for Every
Stage of Growth
Choose the plan that fits your application, from testing an
prototypes to high-volume production workloads.
Free
100 Total Requests.
$0
Starter
5,000 Request/mo.
$14.99/mo.
Professional
50,000 Request/mo.
$59.99/mo.
Enterprise
250,000 Request/mo.
$129.99/mo.
Custom
Need more?
Get custom enterprise pricing for higher-volume requirements, dedicated technical support, and additional business needs.
Need Clarity? Here Are
the Answers You Might
Be Seeking
What is Numverify?
What is Numverify?
Numverify is a global phone number validation and lookup API. It lets applications validate national and international phone numbers and retrieve additional information including country, location, carrier, and line type.
How many countries does Numverify support?
How many countries does Numverify support?
Numverify supports phone number validation across 232 countries.
What information does Numverify return?
What information does Numverify return?
A lookup can return the validation result, local format, international format, country prefix, country code, country name, location, carrier, and line type.
Can Numverify validate international phone numbers?
Can Numverify validate international phone numbers?
Yes. Numverify supports international phone numbers across 232 countries using their international dialing codes.
Can I validate national phone numbers?
Can I validate national phone numbers?
Yes. National numbers can be validated by supplying the appropriate two-letter country code alongside the phone number.
How does Numverify validate phone numbers?
How does Numverify validate phone numbers?
Numverify’s format validation system is powered by regularly updated international phone numbering plans, allowing it to validate phone-number formats across countries.
Is the API secure?
Is the API secure?
Numverify supports connections through industry-standard HTTPS with 256-bit encryption.
What format does the API return?
What format does the API return?
API results are delivered in lightweight JSON format, making them easy to integrate into web applications, backend services, and other systems.
Is there a free plan?
Is there a free plan?
Yes. Numverify offers a free plan with 100 API requests per month. Paid plans start at $14.99 per month.
Build Smarter With
Numverify
See Numverify in Action
Discover how businesses use phone number validation and lookup to improve data quality, reduce failed communications, and build better customer experiences.
Numverify Documentation
Trusted by Developers
Worldwide
“Numverify gives us the phone validation data we need without having to maintain international numbering rules ourselves.”
Thomas Avis
Head of Development
“The API was straightforward to integrate, and the JSON response made it easy to add validation to our existing signup flow.”
Emma Atwool
Product Manager
“We use carrier and line-type information to improve how we handle phone-based communications.”
James Johnson
Engineering Team
“Adding international phone validation took very little development effort.”
Eleonar Fizgerald
CTO
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