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.

Arlington, CA

1 2 3 4 5 6 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
909-819 A LSANCARCCMC  6630 USA MOBILITY WIRELESS, INC. 730      
951-299 A SNANCALWDS1  7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-299 0   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-299 1   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-299 2   649C ONVOY, LLC - CA 730   2019-12-10   
951-299 3   073H TELNYX LLC 730   2017-06-02   
951-299 4   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-299 5   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-299 6   6529 T-MOBILE USA, INC. 730   2011-02-03   
951-299 7   516C AT&T CORP. 730   2011-10-23   
951-299 8   776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2011-04-04   
951-299 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-03   
951-307 A SNANCALWDS1  7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 0   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 1   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 2   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 3   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 4   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 5   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 6   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 7   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 8   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-307 9   7262 XO CALIFORNIA, INC. 730   2011-01-17   
951-324 A LSANCAVADS2  8827 BROADWING COMMUNICATIONS, LLC - CA 730   2004-07-17   
951-324 0   8827 BROADWING COMMUNICATIONS, LLC - CA 730      
951-324 1   776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2015-02-25   
951-324 2   8827 BROADWING COMMUNICATIONS, LLC - CA 730      
951-324 3   6529 T-MOBILE USA, INC. 730   2007-07-06   
951-324 4   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-20   
951-324 5   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730   2003-05-04   
951-324 6   8827 BROADWING COMMUNICATIONS, LLC - CA 730      
951-324 7   8827 BROADWING COMMUNICATIONS, LLC - CA 730      
951-324 8   8782 ALLEGIANCE TELECOM, INC. - CA 730   2001-01-23   
951-324 9   8827 BROADWING COMMUNICATIONS, LLC - CA 730      
951-343 A ARTNCA11DS0  9740 PACIFIC BELL 730      
951-351 A ARTNCA11DS0  9740 PACIFIC BELL 730      
951-352 A ARTNCA11DS0  9740 PACIFIC BELL 730      
951-353 A ARTNCA11DS0  9740 PACIFIC BELL 730      
951-354 A ARTNCA11DS0  9740 PACIFIC BELL 730      
951-354 0   9740 PACIFIC BELL 730      
951-354 1   9740 PACIFIC BELL 730      
951-354 2   9740 PACIFIC BELL 730      
951-354 3   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2001-12-07   
951-354 4   9740 PACIFIC BELL 730      
951-354 5   9740 PACIFIC BELL 730      
951-354 6   9740 PACIFIC BELL 730      
951-354 7   9740 PACIFIC BELL 730      
951-354 8   9740 PACIFIC BELL 730      
951-354 9   9740 PACIFIC BELL 730      
951-358 A ARTNCA11DS0  9740 PACIFIC BELL 730      

1 2 3 4 5 6 >>

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.