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
650-245 A San Mateo CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-255 A South San Francisco CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-296 A South San Francisco CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-302 A Millbrae CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-303 A South San Francisco CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-387 A Palo Alto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-438 A South San Francisco CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-450 A Mountain View CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-454 A Redwood City CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-490 A Millbrae CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-492 A Los Altos CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-504 A San Mateo CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-580 A South San Francisco CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-619 A San Mateo CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-740 A San Mateo CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-743 A Redwood City CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-799 A Palo Alto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-804 A Palo Alto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-823 A Los Altos CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-867 A San Mateo CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-868 A Redwood City CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-888 A San Mateo CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-892 A South San Francisco CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-996 A Mountain View CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      

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Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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