Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 509

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-509 A Fremont-Newark: Main DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-509 0 Fremont-Newark: Main DA CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-09-16   
510-509 1 Fremont-Newark: Main DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-08-27   
510-509 2 Fremont-Newark: Main DA CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2010-10-25   
510-509 3 Fremont-Newark: Main DA CA FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2011-01-26   
510-509 4 Fremont-Newark: Main DA CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-12-09   
510-509 5 Fremont-Newark: Main DA CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-12-09   
510-509 6 Fremont-Newark: Main DA CA SNFCCAMMDS7  258E YMAX COMMUNICATIONS CORP. - CA 722   2010-10-28   
510-509 7 Fremont-Newark: Main DA CA SNFCCAMMDS7  258E YMAX COMMUNICATIONS CORP. - CA 722   2010-10-28   
510-509 8 Fremont-Newark: Main DA CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-09-16   
510-509 9 Fremont-Newark: Main DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2011-01-21   

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

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