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.
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OCN: 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
661-237 6 Shafter CA BKFDCA12XRX  734   2005-03-31   
661-240 6 Wasco CA BKFDCA12XRX  734   2004-02-17   
661-241 5 Bakersfield: South DA CA BKFDCA12XRX  734   2005-06-18   
661-241 6 Bakersfield: South DA CA BKFDCA12XRX  734   2008-02-17   
661-241 7 Bakersfield: South DA CA BKFDCA12XRX  734   2008-02-17   
661-247 6 Arvin CA BKFDCA12XRX  734   2005-03-31   
661-341 3 Lancaster CA IRVNCASM1MD  730   2005-11-24   
661-347 7 Santa Clarita: Saugus Canyon Country DA CA IRVNCASM1MD  730   2008-11-17   
661-368 3 Bakersfield: North DA CA BKFDCA12XRX  734   2008-03-08   
661-371 2 Bakersfield: Main DA CA BKFDCA12XRX  734   2008-03-08   
661-371 3 Bakersfield: Main DA CA BKFDCA12XRX  734   2008-03-08   
661-377 A Bakersfield: Main DA CA BKFDCA12XRX  734      
661-377 0 Bakersfield: Main DA CA BKFDCA12XRX  734      
661-377 1 Bakersfield: Main DA CA BKFDCA12XRX  734      
661-377 2 Bakersfield: Main DA CA BKFDCA12XRX  734      
661-377 3 Bakersfield: Main DA CA BKFDCA12XRX  734      
661-377 7 Bakersfield: Main DA CA BKFDCA12XRX  734      
661-377 9 Bakersfield: Main DA CA BKFDCA12XRX  734      
661-381 A Bakersfield: South DA CA BKFDCA12XRX  734      
661-381 2 Bakersfield: South DA CA BKFDCA12XRX  734   2009-07-23   
661-390 A Arvin CA BKFDCA12XRX  734      
661-401 2 Bakersfield: Main DA CA BKFDCA12XRX  734   2011-08-28   
661-410 A Bakersfield: North DA CA BKFDCA12XRX  734      
661-410 0 Bakersfield: North DA CA BKFDCA12XRX  734      
661-410 1 Bakersfield: North DA CA BKFDCA12XRX  734      
661-410 2 Bakersfield: North DA CA BKFDCA12XRX  734   2014-05-11   
661-410 3 Bakersfield: North DA CA BKFDCA12XRX  734      
661-410 4 Bakersfield: North DA CA BKFDCA12XRX  734      
661-410 5 Bakersfield: North DA CA BKFDCA12XRX  734   2014-04-11   
661-426 7 Bakersfield: Main DA CA BKFDCA12XRX  734   2013-09-07   
661-427 4 Bakersfield: Main DA CA BKFDCA12XRX  734   2008-11-17   
661-431 A Bakersfield: Main DA CA BKFDCA12XRX  734      
661-431 1 Bakersfield: Main DA CA BKFDCA12XRX  734   2005-07-08   
661-437 4 Bakersfield: Main DA CA BKFDCA12XRX  734   2012-10-15   
661-454 3 Delano CA BKFDCA12XRX  734   2007-09-03   
661-458 2 McFarland CA BKFDCA12XRX  734   2018-04-06   
661-468 8 Palmdale: Agua Dulce DA CA IRVNCASM1MD  730   2011-04-22   
661-481 2 Santa Clarita: Newhall-Castaic DA CA IRVNCASM1MD  730   2013-10-25   
661-493 A Bakersfield: Main DA CA BKFDCA12XRX  734      
661-493 7 Bakersfield: Main DA CA BKFDCA12XRX  734   2014-06-22   
661-505 4 Santa Clarita: Newhall-Castaic DA CA IRVNCASM1MD  730   2008-11-16   
661-579 2 Lancaster CA IRVNCASM1MD  730   2008-10-16   
661-579 8 Lancaster CA IRVNCASM1MD  730   2008-09-04   
661-590 A Wasco CA BKFDCA12XRX  734      
661-590 4 Wasco CA BKFDCA12XRX  734   2022-08-15   
661-590 7 Wasco CA BKFDCA12XRX  734   2022-08-15   
661-593 7 Santa Clarita: Newhall-Castaic DA CA IRVNCASM1MD  730   2016-09-12   
661-595 A Bakersfield: Main DA CA BKFDCA12XRX  734      
661-595 2 Bakersfield: Main DA CA BKFDCA12XRX  734   2022-07-25   
661-595 8 Bakersfield: Main DA CA BKFDCA12XRX  734   2022-07-25   

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

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