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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-940 7 Sunnyvale CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-03   
408-940 9 Sunnyvale CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-03   
415-234 8 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2010-04-26   
415-234 9 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2010-04-26   
415-251 A Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722      
415-251 0 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 1 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 2 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 3 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 4 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 5 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 6 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 7 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 8 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-251 9 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-01-12   
415-506 1 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-04-06   
415-506 2 Ignacio CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-04-06   
415-632 3 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-07-17   
415-685 5 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-09-14   
415-685 8 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-09-14   
415-735 7 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-09-14   
415-742 6 San Francisco: Montrose-Evergreen DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-08-11   
415-742 7 San Francisco: Montrose-Evergreen DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-08-11   
415-746 6 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-08-11   
415-829 9 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-08-11   
415-852 9 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-04-06   
415-926 4 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-08-01   
415-932 8 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-08-11   
415-935 5 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-16   
415-935 6 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-16   
415-935 7 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-16   
415-935 8 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-16   
415-935 9 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-16   
415-967 4 San Francisco: Central DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2011-07-15   
510-200 5 Hayward CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-09-14   
510-214 5 Oakland: Alameda DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-03-22   
510-214 7 Oakland: Alameda DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-01-14   
510-229 3 Oakland: Berkeley DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-03   
510-263 7 Oakland: Alameda DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2007-07-29   
510-337 4 Oakland: Alameda DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-01-14   
510-355 8 Oakland: Alameda DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-01-14   
510-356 3 Oakland: Berkeley DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2009-03-08   
510-356 5 Oakland: Berkeley DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-04-18   
510-356 6 Oakland: Berkeley DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-04-18   
510-363 3 Hayward CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-16   
510-371 8 Fremont-Newark: Main DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-03   
510-371 9 Fremont-Newark: Main DA CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-03   
510-397 3 Hayward CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-10-18   
510-397 4 Hayward CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-10-18   
510-397 5 Hayward CA 258E YMAX COMMUNICATIONS CORP. - CA 722   2008-10-18   

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

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