Specification sheet · Communication APIs (CPaaS)
Number Lookup & Phone Intelligence API
Real-time HLR, MNP and line-type intelligence on any phone number - validate, route and risk-score before you send or dial, from one REST endpoint with coverage in 230+ countries.
HLR/MNP lookup, live subscriber status, carrier and line-type detection, roaming and ported-number resolution and fraud scoring via REST API or batch, sub-second latency.
- Countries covered
- 230+
- Networks resolved
- 1,000+
- Median HLR response
- < 1 s
At a glance
- Format, MNP and HLR lookups from a single REST endpoint
- Live status: reachable, absent, ported, roaming, serving MCC-MNC
- Carrier and line-type detection: mobile, fixed, VoIP, toll-free
- Risk scoring with virtual-number and recent-port indicators
- Batch list cleaning up to millions of numbers per job
- Coverage across 230+ countries and 1,000+ networks
- Sub-second median response from global PoPs
- Pay-per-lookup pricing with volume tiers, no minimum commit
Typical use cases
- 01OTP and 2FA senders
- 02Contact centres and diallers
- 03Fintech onboarding and KYC
- 04Marketing list hygiene
- 05Carriers and CPaaS platforms
- 06E-commerce and logistics
Technical & commercial specifications
| Coverage | 230+ countries; 1,000+ mobile networks for HLR/MNP |
|---|---|
| Lookup levels | Format (offline), MNP (portability DB), HLR (live network) |
| Response fields | E.164, country, carrier, MCC-MNC, line type, ported, roaming, status |
| Latency | Format < 50 ms; MNP < 200 ms; HLR median < 1 s |
| API | REST/JSON over HTTPS; API key or OAuth 2.0; SDKs and Postman |
| Batch | CSV/JSON up to several million numbers per job; webhook on completion |
| Rate limits | Configurable per key; default 100 requests/s, higher on request |
| Caching | Configurable TTL; cached hits not billed |
| Data handling | GDPR-aligned minimisation; EU or India processing on request |
| Support | 24×7 NOC; developer support; named account manager |
Talk to Dollu about Number Lookup API
Send us your destinations, volumes, sites or use case and we will return a proposal, pricing and a technical plan within one business day. Test credentials and the full service description and SLA document are available on request.
- Sales
- [email protected]
- Phone
- +91 777-500-2222
- Web
- dollu.com
- NOC
- [email protected] · 24×7
Dollu Ltd · 2403A, Iconic Corenthum, Sector 62, Noida 201301, India. This sheet summarises the standard service; specifications may vary by country and are confirmed in the service order.
Online version: https://dollu.com/services/cpaas/number-lookup-api
Contact: https://dollu.com/contact?service=number-lookup-api