The Basics of Location Routing Number
Location Routing Number services are special numerical designations using a 10-digit format for a phone number which is used to route phone calls to destination numbers that have been transferred from one carrier to another.
LRN and Matching Telephone Numbers
In essence, you can think of the telecom system querying a database to find the LRN matching with the destination number when a call is made via a switch in a specific location tagged with this number.
Simplifying the Way We Make Calls
LRN services simplified the way calls are made. Using the Location Routing Number system, there was no longer any need for a service provider, rate center, or carrier type identification, as only the number associated with the switch in necessary in order to complete the call successfully. Then it is possible to perform a database query and return a result with the LRN corresponding with the destination number that had been dialed.
Ported Telephone Numbers
Location Number Routing services provide you with an efficient way to correctly route numbers that have been ported or moved between carriers - your carrier needs simply only to route the call the new carrier for your destination number using the corresponding LRN for the phone number.
The Origins of LRN Services
Let's learn some Telecoms history! Did you know that Location Routing Number services were originally introduced as a result of a 1996 ruling by congress to allow customers to change their carrier for their phone services while keeping the same number?
Call Connected Before You Even Notice
Sounds complex? It's a clever system - and from your perspective when you make a call, this happens at light speed, so you won't even notice as you will already be connected with the correct destination number!