Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-231 A Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      
815-231 0 Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      
815-231 1 Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      
815-231 2 Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      
815-231 3 Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      
815-231 4 Rockford IL RCFRILRTXEY  145J TERRA NOVA TELECOM INC. 360   2023-11-15   
815-231 5 Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      
815-231 6 Rockford IL RCFRILRCMMD  6529 T-MOBILE USA, INC. 360   2010-09-30   
815-231 7 Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      
815-231 8 Rockford IL RCFRILRTXJY  8760 US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL 360   2008-09-02   
815-231 9 Rockford IL RCFRILREDS0  9329 ILLINOIS BELL TEL CO 360      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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