Number Lookup

Clean your distribution lists, validate numbers, and reduce delivery costs using our real-time information on phone numbers anywhere in the world.

“Aerialink provides outstanding customer service and innovative solutions.”

David Myers

Key Features & Use Cases

Get Subscriber Network Information

Provides real-time subscriber network information. Reveals if a number is mobile or fixed landline; the name of the carrier; if the number has been ported; the active / invalid status of a number; the date last updated, and more. Get Additional Info for Country Code +1 Lookup state, city, and time zone information for U.S. numbers.

Increase Delivery Success

Optimizes the integrity of your subscription lists. Cleanses your lists and improves routing before sending outbound messages and voice calls. Verifies if a phone number is valid, reachable, and accessible by a subscriber.

Mitigate TCPA Risk Exposure

Proactively monitors phone number reassignments to mitigate risk exposure for FCC's Telephone Consumer Protection Act (TCPA) one-call exemptions. Helps protect your company to limit a call or text to a reassigned number only once.

Worldwide Coverage

Uses the trusted Number Portability Administration Center (NPAC) registry, a common, authoritative database to enable local number portability (LNP) in the United States and Canada.

Merges LNP data from other countries and all publicly available telephone networks.

The NPAC is the most comprehensive number system in the world with +1.2M real-time broadcasts of additions, changes, deletions every day.

Verify Number Format

Allows you to verify the format and validity of numbers anywhere in the world before sending messages or voice calls.

Pay Per Use

Simple pricing; pay for what you use. No minimum volume, no credits, no bundling. Post-paid accounts available for qualified customers; deposit may be required.

Subscription List Cleansing
Phone Number Formatting
User Verification for Fraud Prevention


  • Identify and remove invalid numbers from your database.

  • Separate landline numbers from mobile numbers.

  • Maximize the results of your SMS or MMS marketing campaign.

  • Streamline the efforts of your team and increase productivity.

  • Reduce your upfront capital investment through a hosted solution.

API & Documentation

Sign up for a trial account and use our API emulator to look up a number and get a full detailed response in JSON (default) or XML right from the Aerialink portal. A paid subscription account gives you two options; use the Number Lookup API to interface with your software to return a full detailed response or, get an instant response by performing a manual lookup from our portal to obtain a subset of key information.


API Interface: HTTPS
URI: /v4/numbers
Methods: GET
Response Schemas: JSON (default), XML