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: 909 [Rate centres in NPA 909] [Dial plan for NPA 909]

NXX: 525

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-525 A Pomona CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
909-525 0 Pomona CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-525 1 Pomona CA   145J TERRA NOVA TELECOM INC. 730      
909-525 2 Pomona CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-525 3 Pomona CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-525 4 Pomona CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
909-525 5 Pomona CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-525 6 Pomona CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-525 7 Pomona CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-525 8 Pomona CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-525 9 Pomona CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.