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.

OCN: 808C WEST TELECOM SERVICES, LLC - CA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
209-244 A Stockton CA SKTNCA01XAZ  738      
209-244 9 Stockton CA   738   2002-05-28   
209-290 3 Stockton CA   738   2018-04-21   
209-313 0 Stockton CA   738   2016-08-18   
209-905 5 Stockton CA   738   2017-02-17   
209-940 8 Stockton CA   738   2017-07-14   
209-949 3 Stockton CA   738   2015-05-02   
213-217 9 Los Angeles: DA 01 CA   730   2012-09-28   
213-292 A Los Angeles: DA 01 CA LSANCAJWDS7  730   2009-12-24   
213-292 9 Los Angeles: DA 01 CA   730   2009-12-24   
213-320 2 Los Angeles: DA 01 CA   730   2018-06-19   
213-358 0 Los Angeles: DA 01 CA   730   2016-08-18   
213-660 0 Los Angeles: DA 01 CA   730   2017-03-13   
213-996 9 Los Angeles: DA 01 CA   730   2018-11-09   
408-758 A San Jose: West DA CA SNTDCADZDS0  722   2010-09-11   
408-758 9 San Jose: West DA CA   722   2010-09-11   
415-273 0 San Francisco: Central DA CA   722   2010-08-12   
442-212 2 Palm Springs CA   973   2017-07-14   
442-268 1 Palm Springs CA   973   2016-08-19   
442-275 1 Palm Springs CA   973   2016-02-07   
530-441 1 Marysville CA   726   2016-08-19   
530-844 A Marysville CA SCRMCA01Y4X  726      
530-844 9 Marysville CA   726      
628-221 0 San Francisco: Central DA CA   722   2015-09-19   
628-246 8 San Francisco: Central DA CA   722   2016-09-20   
661-378 A Bakersfield: Main DA CA BKFDCA01Y4X  734      
661-378 9 Bakersfield: Main DA CA   734      
661-407 1 Bakersfield: Main DA CA   734   2018-12-02   
661-567 1 Bakersfield: Main DA CA   734   2016-08-18   
669-204 0 San Jose: West DA CA   722   2016-06-24   
760-699 A Palm Springs CA PLSPCAXGX0Y  973      
760-699 0 Palm Springs CA   973   2003-04-28   
805-418 6 Thousand Oaks CA   730   2016-08-19   
805-852 A Thousand Oaks CA SNMNCAXPX0Y  730      
805-852 0 Thousand Oaks CA   730   2003-04-28   

Last updated: Wed, 10 Apr 2019 01:22:05 UTC

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