Bulk Phone Number Validation API - Carrier & E.164 Lookup

Phone validation API for phone number validation, bulk phone validation, carrier lookup, phone number lookup, and lead list cleanup. Normalize up to 100 contacts per call with E.164 formatting, country code, line type, geocoding, and timezone metadata through query parameters or a POST JSON array. Results are libphonenumber numbering-plan metadata, not proof of live reachability, ownership, consent, OTP delivery, or current HLR/carrier assignment.