Check That Phone V4
सभी Check That Phone API देखें →Validate a U.S. or Canadian phone number and optionally provide subscriber IPv4 or IPv6 for GeoIP and timezone. Returns carrier name and type, line type (mobile, landline, VoIP, toll-free), portability status, deliverability, blacklist screening, and when IP is provided: GeoIP location, timezone, and Local Routing Number (LRN) for call or SMS routing. One GET returns 20+ fields for signup flows, messaging, and compliance checks.
API विशेषताएँ
Live MSC data Queries Mobile Switching Centers in real time instead of static databases or area-code tables for up-to-the-second carrier and line type accuracy
Line type classification Identifies mobile, landline, fixed and non-fixed VoIP, and toll-free to cut SMS waste and support TCPA-compliant routing decisions
Portability and reachability Returns whether the number has been ported and if it is currently active and reachable for messaging or voice campaigns
GeoIP and LRN with optional IP When subscriber IP is supplied, response adds geographic location, timezone for contact timing, and Local Routing Number for call or SMS routing
Blacklist and risk screening Flags high-risk or opted-out numbers so signup and messaging workflows can filter before sending
Single-request payload One GET with phone and optional IP returns 20+ structured JSON fields for minimal integration effort
लाइव API डेमो
API Response (JSON)
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उपयोग के मामले
- SMS and OTP: validate before send to avoid landlines and inactive numbers and reduce messaging costs
- Signup and 2FA: detect VoIP and disposable numbers to lower fraud and improve account security
- TCPA and 10DLC: identify line type and deliverability for compliant calling and messaging programs
- Lead and contact enrichment: verify reachability and carrier for CRM and marketing campaigns
- Call and SMS routing: use LRN and carrier data to route traffic and improve deliverability
- Time-based outreach: use GeoIP timezone from optional IP to call or text at the right local hour
- Pre-send screening: check numbers against blacklists before sending to reduce complaints and fines