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.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
650-754 7 South San Francisco CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-10-18   
650-835 8 South San Francisco CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2010-10-26   
650-835 9 South San Francisco CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2010-10-26   
650-847 5 Palo Alto CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-09-11   
650-847 6 Palo Alto CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-09-11   
650-855 4 Palo Alto CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-05-31   
650-993 1 San Francisco: Juniper DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-02-10   
650-993 2 San Francisco: Juniper DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-02-10   
650-993 3 San Francisco: Juniper DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-02-10   
707-225 0 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-07-29   
707-225 6 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-01-14   
707-225 8 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-01-14   
707-256 8 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-02-10   
707-260 2 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-09-14   
707-260 3 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-02-10   
707-266 9 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-09-14   
707-299 6 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-07-29   
707-320 1 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-03-22   
707-501 9 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-07-07   
707-637 0 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-07-07   
707-637 2 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-05-19   
707-637 5 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-05-19   
707-637 9 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-07-07   
707-666 7 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-04-06   
707-666 8 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-04-06   
707-666 9 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-04-06   
707-681 6 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2010-04-26   
707-681 8 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2010-04-26   
707-681 9 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2010-04-26   
707-812 6 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-09-14   
707-812 7 Napa CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-07-29   
831-420 8 Santa Cruz CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-07-29   
831-435 1 Santa Cruz CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-05-08   
831-435 3 Santa Cruz CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-07-06   
831-435 4 Santa Cruz CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-07-06   
831-477 6 Santa Cruz CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-07-06   
831-824 8 Santa Cruz CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-08-20   
925-262 9 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-16   
925-289 A Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722      
925-289 0 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-04-09   
925-289 1 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-04-09   
925-289 2 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-04-09   
925-289 3 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-04-09   
925-289 4 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-04-09   
925-289 5 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-04-09   
925-322 4 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-07-12   
925-322 5 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-07-12   
925-476 8 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-07-29   
925-478 6 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-06-30   
925-627 0 Walnut Creek CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-03-09   

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

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