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: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 937

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-937 A Glendale CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
818-937 0 Glendale CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-04-28   
818-937 1 Glendale CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-04-28   
818-937 2 Glendale CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2010-09-11   
818-937 3 Glendale CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-10-29   
818-937 4 Glendale CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-04-28   
818-937 5 Glendale CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
818-937 6 Glendale CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2007-05-13   
818-937 7 Glendale CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2009-09-09   
818-937 8 Glendale CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2009-05-14   
818-937 9 Glendale CA MTPKCACG1MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2010-12-22   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.