How LNP works and why
LRN is needed?

Local Number Portability (LNP) is possible thanks to the Location Routing Number (LRN), a unique 10-digit telephone number assigned to each switch Prior to the establishment of LNP, a telephone number's original state, rate center, service provider and carrier type (wireline, wireless, or VOIP) were identified in the North American Numbering Plan (NANP) by the NPA (area code) and NXX (central office code). With the introduction of LNP, telephone numbers were being ported between service providers and a new way of determining the network address of the serving switch was needed to ensure the call was routed correctly. With that, the LRN was created.

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 Routing

Most USA carriers now route and bill using LRN data. If you are not using a LRN dipping service, you are likely paying 25 - 35% more than necessary for your voice traffic, experiencing more incomplete calls than necessary, and having difficulty reconciling invoices from your vendors.

Using our Location Routing Number (LRN) dipping service, you can efficiently complete calls to the correct operator while avoiding dropped or incorrect calls and unnecessary and expensive default dips charged from a local exchange carrier (LEC) - all while minimizing capital investments and operational expenses.

It is in every VoIP providers interest to make sure they have access to an LRN (Local Routing Number) dipping service.

Starting at $0.0005/query