Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-305 A Gardner IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-305 1 Gardner IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-02-14   
815-305 2 Gardner IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2009-11-10   
815-305 3 Gardner IL JOLTILJOPMD  593K MCC TELEPHONY LLC 358   2010-03-15   
815-305 5 Gardner IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-05-15   
815-305 6 Gardner IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-09-25   
815-305 7 Gardner IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-305 8 Gardner IL CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2006-08-06   
815-305 9 Gardner IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2022-01-02   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.