Voice

Telephony Data

Our RESTful API can give you instant access to the telephony information you and your users need to improve call experiences.

Call Context

Improve caller experiences by providing information before recipients pick up the phone.

Enriched Profiles

Improve caller insights and analytics with real telco service-record data.

Accurate Routing & Rating

Know exactly who you’re calling. Identify the current carrier and relevant switch data.

CNAM Data

Do you know who's calling you? Gain access to Caller ID Name data via our CNAM endpoint, so you can verify contacts, know who’s calling before you pick up and minimize risk and fraud. Using our RESTful API comes at a fraction of the cost of other CNAM lookup services.
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GET https://data.telnyx.com/cnam/v1/caller-information?tn=13129457420


{
  "callerInformation": "Telnyx,LLC"
}
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GET https://lrnlookup.telnyx.com/v1/LRN/{3129457420}

{
  "tn": "3129457420",
  "lrn": "2245701999"
}

Real-Time LRN Data

Telnyx is one of only six NPAC-authorized distributors of LRN data in the world. LRN Data allows you to identify the carrier with which a number is associated, ensuring that you are properly routing, rating and billing for calls.

Switch Data

Need more than just the LRN of a number? Take advantage of our extended lookup to gather additional metadata. For example, identify mobile numbers prior to sending a text for TCPA compliance purposes. Simply query our API to find the operating carrier number, line type, SPID and more for a particular telephone number.
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GET https://switchdata.telnyx.com/v1/Lookup/{3129457420}

{
  "tn": "3129457420",
  "ocn": "984E",
  "carrier_name": "BANDWIDTH.COM CLEC, LLC - IL",
  "mapped_svtype": "0",
  "lata": "CHICAGO ILLINOIS",
  "locality": "CHICAGO ZONE 01",
  "localitystate": "IL",
  "ratecenter": "CHICAGO ZONE 01",
  "ratecenterabbreviation": "CHICGOZN01"
}

Caller Identification, API-Enabled

The Telnyx API pulls in call context details programmatically. Query CNAM, LRN or Switch databases over HTTP requests and the LRN can be requested via SIP, DNS ENUM, or XML UDP. Deliver all the information your users need directly to their device with the Telnyx API.

Telephony Data Features

Caller Context

Everything you need to know about incoming calls or prospects.

Rate Center Lookup

Quickly locate a number's geographic and related information.

Direct Database Lookup

The Telnyx API accesses data directly, not through intermediaries.

IP Authentication

Easily access the Telnyx system through simple IP auth.

Dev-Friendly API

Our API-first product is built as a drop-in, integrated solution.

24/7 Service

Our support engineers are available around the clock for troubleshooting and support.

Related Products

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