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: OKLDCA03XOY

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-922 1 Oakland: Main-Piedmont DA CA 318J COMCAST IP PHONE, LLC 722   2006-12-05   
510-922 8 Oakland: Main-Piedmont DA CA 318J COMCAST IP PHONE, LLC 722   2006-12-05   
510-922 9 Oakland: Main-Piedmont DA CA 318J COMCAST IP PHONE, LLC 722   2006-12-05   
510-924 7 Oakland: Trinidad DA CA 318J COMCAST IP PHONE, LLC 722   2010-06-21   
510-940 8 Hayward CA 318J COMCAST IP PHONE, LLC 722   2011-05-26   
510-941 A Fremont-Newark: Greenleaf DA CA 318J COMCAST IP PHONE, LLC 722      
510-941 4 Fremont-Newark: Greenleaf DA CA 318J COMCAST IP PHONE, LLC 722   2017-11-13   
510-941 7 Fremont-Newark: Greenleaf DA CA 318J COMCAST IP PHONE, LLC 722   2017-01-26   
510-948 8 Hercules-Rodeo CA 318J COMCAST IP PHONE, LLC 722   2006-12-27   
510-952 9 Fremont-Newark: Greenleaf DA CA 318J COMCAST IP PHONE, LLC 722   2007-03-09   
510-957 5 Oakland: Trinidad DA CA 318J COMCAST IP PHONE, LLC 722   2013-08-15   
510-963 5 Hayward CA 318J COMCAST IP PHONE, LLC 722   2016-03-04   
510-964 4 El Sobrante-Pinole CA 318J COMCAST IP PHONE, LLC 722   2009-04-30   
510-964 7 El Sobrante-Pinole CA 318J COMCAST IP PHONE, LLC 722   2007-03-10   
510-969 4 Oakland: Trinidad DA CA 318J COMCAST IP PHONE, LLC 722   2006-10-17   
510-969 5 Oakland: Trinidad DA CA 318J COMCAST IP PHONE, LLC 722   2006-10-17   
510-969 7 Oakland: Trinidad DA CA 318J COMCAST IP PHONE, LLC 722   2008-08-13   
510-969 8 Oakland: Trinidad DA CA 318J COMCAST IP PHONE, LLC 722   2008-08-13   
510-972 A Fremont-Newark: Greenleaf DA CA 318J COMCAST IP PHONE, LLC 722      
510-972 0 Fremont-Newark: Greenleaf DA CA 318J COMCAST IP PHONE, LLC 722      
510-984 0 Oakland: Berkeley DA CA 318J COMCAST IP PHONE, LLC 722   2011-09-15   
510-988 4 Oakland: Fruitvale DA CA 318J COMCAST IP PHONE, LLC 722   2019-05-20   
510-990 6 Oakland: Berkeley DA CA 318J COMCAST IP PHONE, LLC 722   2013-09-18   
510-995 8 Oakland: Alameda DA CA 318J COMCAST IP PHONE, LLC 722   2007-02-11   
628-201 4 San Francisco: Central DA CA 318J COMCAST IP PHONE, LLC 722   2016-02-05   
628-240 3 San Rafael CA 318J COMCAST IP PHONE, LLC 722   2018-01-04   
628-253 5 San Rafael CA 318J COMCAST IP PHONE, LLC 722   2016-09-24   
628-259 2 Ignacio CA 318J COMCAST IP PHONE, LLC 722   2018-01-08   
628-259 3 Ignacio CA 318J COMCAST IP PHONE, LLC 722   2018-11-29   
628-271 1 San Francisco: Central DA CA 318J COMCAST IP PHONE, LLC 722   2020-03-19   
628-280 3 San Francisco: Montrose-Evergreen DA CA 318J COMCAST IP PHONE, LLC 722   2018-07-06   
628-336 6 San Rafael CA 318J COMCAST IP PHONE, LLC 722   2019-07-01   
628-867 7 San Francisco: Central DA CA 318J COMCAST IP PHONE, LLC 722   2018-09-12   
650-209 5 Los Altos CA 318J COMCAST IP PHONE, LLC 722   2006-05-26   
650-226 3 San Carlos-Belmont CA 318J COMCAST IP PHONE, LLC 722   2005-09-26   
650-226 5 San Carlos-Belmont CA 318J COMCAST IP PHONE, LLC 722   2017-07-17   
650-232 7 San Carlos-Belmont CA 318J COMCAST IP PHONE, LLC 722   2013-08-11   
650-239 9 Millbrae CA 318J COMCAST IP PHONE, LLC 722   2010-09-25   
650-242 1 San Mateo CA 318J COMCAST IP PHONE, LLC 722   2010-10-05   
650-257 3 Redwood City CA 318J COMCAST IP PHONE, LLC 722   2009-04-06   
650-257 7 Redwood City CA 318J COMCAST IP PHONE, LLC 722   2007-10-22   
650-260 2 Redwood City CA 318J COMCAST IP PHONE, LLC 722   2005-09-26   
650-268 2 Pescadero CA 318J COMCAST IP PHONE, LLC 722   2010-10-22   
650-272 6 Palo Alto CA 318J COMCAST IP PHONE, LLC 722   2013-10-04   
650-274 0 San Mateo CA 318J COMCAST IP PHONE, LLC 722   2013-07-12   
650-304 3 Palo Alto CA 318J COMCAST IP PHONE, LLC 722   2016-11-10   
650-313 2 Palo Alto CA 318J COMCAST IP PHONE, LLC 722   2017-12-25   
650-336 7 Mountain View CA 318J COMCAST IP PHONE, LLC 722   2011-09-30   
650-362 4 Redwood City CA 318J COMCAST IP PHONE, LLC 722   2011-10-03   
650-376 3 San Mateo CA 318J COMCAST IP PHONE, LLC 722   2006-10-17   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.