Phone Number Validation APIs - Validate, Lookup & Enrich Phone Numbers

Validate and enrich phone numbers with comprehensive metadata including carrier name, line type, geographic location, time zones, and standardized formats. The API checks whether numbers are valid according to international numbering plans, identifies whether they are mobile, landline, or VoIP, and returns all four standard phone number formats — E.164, International, National, and RFC3966 — in a single response. Use it to block fake signups with disposable numbers, clean contact lists before SMS campaigns, or verify user data during registration. Supports phone numbers from 200+ countries in both international and local formats.

Process individual phone numbers for real-time verification during signup or use the bulk endpoint to validate up to 100 numbers per request for list cleaning and CSV imports. The bulk endpoint processes each number independently so a single invalid entry never breaks the batch — each number returns its own validation result or per-number error. Whether you need to validate user input at the point of collection, clean existing contact databases, or build fraud detection workflows that block VoIP and disposable numbers, the Phone Number Validation API delivers accurate, real-time intelligence with minimal integration effort.