Accurate Routing and Billing
LRN is the efficient way to determine proper routing and billing.
Telnyx’s API updates directly from the NPAC LRN database in real time.
Recent ports can indicate inaccurate contact information when authenticating leads.
LRN data simplifies the complex routing requirements of modern telephony.
Decades of PSTN evolution have introduced state and LATA jurisdictions, number portability and VoIP calls, and each new development further complicated call routing and billing. Modern carriers use LRN data to quickly route calls to their proper jurisdiction and bill at the correct rate. Connecting calls without knowing the LRN typically costs carriers more and results in slower connections.
LCR starts with LRN. Methods, strategies and software for minimizing routing costs and maximizing profits are worthless until the system can identify exactly where the call originates and where it is headed. Use our LRN dipping service to power your routing systems with the most accurate and up-to-date record.
Starting at $0.0007/query.
One of only six distributors authorized to access the master LRN database, Telnyx brings you the most accurate and up-to-date LRN record. Solutions that rely on secondary sources are forced to update on a delay and can’t guarantee accurate information. A ported number’s status is reflected in the Telnyx LRN API as soon as it is updated in the NPAC LRN database.
Send Telnyx a 10-digit phone number, and we’ll return that number’s Local Routing Number. Perform an LRN dip via HTTP, SIP, DNS ENUM or XML UDP request.
Extended LRN Lookup
Use our extended lookup to access other metadata, like:
- Whether a number has ever been ported
- Wireline, wireless or VoIP
- The carrier’s
LRN Data Features
Porting details are updated in real time from the NPAC database.
Access carrier and number details beyond the LRN.
Data for developers. All our data is delivered via programmatic API.
Request data via HTTP, SIP, DNS ENUM or XML UDP.