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: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-312 A Rockford IL RCFRILRTZMD  224C ONVOY, LLC 360   2024-12-29   
815-312 0 Rockford IL   224C ONVOY, LLC 360   2009-01-29   
815-312 5 Rockford IL RCFRILRCJMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360   2009-08-29   
815-312 6 Rockford IL RCFRILRTX5Y  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 360   2010-02-27   
815-312 7 Rockford IL RCFRILRTX5Y  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 360   2010-02-27   
815-312 8 Rockford IL RCFRILRTX5Y  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 360   2010-05-28   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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