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: 626 [Rate centres in NPA 626] [Dial plan for NPA 626]

NXX: 857

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
626-857 A Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      
626-857 0 Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      
626-857 1 Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      
626-857 2 Azusa-Glendora CA ANHMCANGDS0  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2007-11-14   
626-857 3 Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      
626-857 4 Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      
626-857 5 Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      
626-857 6 Azusa-Glendora CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-09-11   
626-857 7 Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      
626-857 8 Azusa-Glendora CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2017-03-28   
626-857 9 Azusa-Glendora CA GLNDCAXF33M  2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.