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.

Switch: OKLDCAMP1MD

<< 1 2 3 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-371 6 Fremont-Newark: Main DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-05-15   
510-398 7 Hayward CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2013-05-22   
510-423 A Oakland: Berkeley DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722      
510-423 9 Oakland: Berkeley DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-01-16   
510-431 6 Fremont-Newark: Greenleaf DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-11-19   
510-460 3 Hayward CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2010-05-27   
510-488 0 Oakland: Fruitvale DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-05-15   
510-571 8 Hayward CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2017-10-15   
510-597 2 Oakland: Main-Piedmont DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2012-11-07   
510-730 7 Richmond CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2011-01-14   
510-771 5 Fremont-Newark: Oliver DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2010-11-04   
510-788 3 Oakland: Main-Piedmont DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-07-06   
510-804 A El Sobrante-Pinole CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722      
510-844 8 Oakland: Main-Piedmont DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2015-07-30   
510-874 5 Oakland: Main-Piedmont DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2011-07-26   
510-897 5 Fremont-Newark: Oliver DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2014-06-26   
510-924 3 Oakland: Trinidad DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-08-04   
510-957 6 Oakland: Trinidad DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2013-09-18   
628-242 0 San Francisco: Central DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2015-05-11   
628-242 1 San Francisco: Central DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2015-05-11   
628-256 6 San Francisco: Montrose-Evergreen DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2017-03-09   
628-284 A San Francisco: Central DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722      
628-284 1 San Francisco: Central DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2022-08-01   
628-477 5 Mill Valley CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2021-07-16   
628-502 1 San Francisco: Central DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2018-08-27   
628-502 2 San Francisco: Central DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2018-08-27   
628-895 0 San Francisco: Central DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2017-03-24   
650-257 6 Redwood City CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-04-28   
650-282 8 Mountain View CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2012-10-01   
650-372 8 San Mateo CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2013-03-13   
650-436 1 San Mateo CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2016-07-05   
650-443 5 Millbrae CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2010-05-17   
650-453 5 San Carlos-Belmont CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2010-08-05   
650-485 4 Palo Alto CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-05-04   
650-528 2 Mountain View CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-05-04   
650-597 4 San Carlos-Belmont CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2011-11-16   
650-597 8 San Carlos-Belmont CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2016-05-10   
650-600 5 Palo Alto CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2012-09-26   
650-656 4 Palo Alto CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2014-06-30   
650-665 2 Palo Alto CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2014-09-05   
650-741 7 South San Francisco CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-11-02   
650-752 1 Palo Alto CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2011-08-17   
650-784 7 South San Francisco CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2012-12-03   
650-822 5 South San Francisco CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2015-06-19   
650-850 7 Woodside CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2015-06-22   
650-882 A Pescadero CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722      
650-954 2 San Mateo CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-05-13   
650-993 7 San Francisco: Juniper DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2013-08-20   
669-212 6 San Jose: West DA CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2016-12-16   
669-215 7 Sunnyvale CA 4733 PAETEC COMMUNICATIONS, INC. - CA 722   2017-06-02   

<< 1 2 3 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.