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: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-258 A Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-258 0 Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-258 1 Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-258 3 Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-258 4 Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-258 5 Edwards CA BKFDCAKTX1X  939H COMMIO, LLC 734      
661-258 6 Edwards CA BKFDCAKTX5X  145J TERRA NOVA TELECOM INC. 734      
661-258 7 Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-258 8 Edwards CA   145J TERRA NOVA TELECOM INC. 734      
661-258 9 Edwards CA BKFDCAKTX5X  145J TERRA NOVA TELECOM INC. 734      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.