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: 951 [Rate centres in NPA 951] [Dial plan for NPA 951]

NXX: 801

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
951-801 A Riverside CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
951-801 0 Riverside CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2005-11-04   
951-801 1 Riverside CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2005-11-04   
951-801 2 Riverside CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-11-03   
951-801 3 Riverside CA   145J TERRA NOVA TELECOM INC. 730   2022-06-11   
951-801 4 Riverside CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-12-08   
951-801 5 Riverside CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-12-08   
951-801 6 Riverside CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2005-11-25   
951-801 7 Riverside CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2005-11-25   
951-801 8 Riverside CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-12-12   
951-801 9 Riverside CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2007-07-23   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.