A live query to subscriber's own HLR.
Six APIs that read from the authoritative subscriber database. Active status, current carrier, portability, reachability, line type, and operator-gated identity. Not a cached lookup. Not inferred from a number range.
Third-party number databases drift. The HLR doesn't.
Six APIs. Each reads a different signal.
Active status. Carrier identification. Number portability. Real-time reachability. Line type classification. Subscriber identity. One platform, six queries against the network that actually knows.
How a query resolves.
You call our API with a phone number. We determine the home network from the MSISDN range, dispatch a MAP SRI-for-SM query over our own SIGTRAN interconnect to the operator's HLR. The HLR responds with the subscriber's IMSI and serving MSC — or a MAP error code telling you exactly why it didn't. We translate that into a clean REST response with every field traceable to the HLR. Protocol-layer latency: under 1 millisecond. End-to-end: 300ms to 4 seconds.
