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.

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
413-352 7 Springfield MA SPFDMAWOX4Y  126   2023-01-20   
413-352 8 Springfield MA SPFDMAWOX4Y  126   2023-01-20   
413-355 5 Springfield MA SPFDMAWOX4Y  126   2011-10-17   
413-366 5 Wilbraham MA SPFDMAWOX4Y  126   2008-04-21   
413-377 4 Chicopee MA SPFDMAWOX4Y  126   2017-04-16   
413-395 2 Pittsfield MA SPFDMAWOX4Y  126   2021-12-27   
413-395 3 Pittsfield MA SPFDMAWOX4Y  126   2021-12-27   
413-409 5 Holyoke MA SPFDMAWOX4Y  126   2017-04-14   
413-418 A Pittsfield MA SPFDMAWOX4Y  126      
413-418 6 Pittsfield MA SPFDMAWOX4Y  126   2023-01-27   
413-418 7 Pittsfield MA SPFDMAWOX4Y  126   2023-01-18   
413-437 5 Holyoke MA SPFDMAWOX4Y  126   2009-04-05   
413-449 5 Pittsfield MA SPFDMAWOX4Y  126   2011-11-16   
413-493 5 Holyoke MA SPFDMAWOX4Y  126   2023-01-21   
413-505 A Springfield MA SPFDMAWOX4Y  126      
413-505 5 Springfield MA SPFDMAWOX4Y  126   2006-05-25   
413-512 5 Greenfield MA SPFDMAWOX4Y  126   2012-01-18   
413-588 5 Northampton MA SPFDMAWOX4Y  126   2012-03-23   
415-213 A San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-213 0 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-213 1 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-213 3 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-213 6 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-213 7 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-213 8 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-213 9 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-214 6 San Francisco: Central DA CA SNJSCAYB0MD  722   2015-08-04   
415-214 7 San Francisco: Central DA CA SNJSCAYB0MD  722   2015-08-04   
415-230 3 San Francisco: Central DA CA SNJSCAYB0MD  722   2008-05-04   
415-230 6 San Francisco: Central DA CA SNJSCAYB0MD  722   2008-05-04   
415-230 7 San Francisco: Central DA CA SNJSCAYB0MD  722   2008-05-04   
415-230 8 San Francisco: Central DA CA SNJSCAYB0MD  722   2008-05-04   
415-266 A San Francisco: Central DA CA SNJSCAYB0MD  722      
415-266 0 San Francisco: Central DA CA   722   2011-09-22   
415-266 1 San Francisco: Central DA CA   722   2011-09-22   
415-266 2 San Francisco: Central DA CA   722   2011-09-22   
415-266 3 San Francisco: Central DA CA   722   2011-09-22   
415-266 5 San Francisco: Central DA CA   722   2011-09-22   
415-266 6 San Francisco: Central DA CA   722   2011-09-22   
415-266 7 San Francisco: Central DA CA   722   2011-09-22   
415-266 8 San Francisco: Central DA CA   722   2011-09-22   
415-266 9 San Francisco: Central DA CA   722   2011-09-22   
415-275 7 Sausalito CA SNJSCAYB0MD  722   2004-02-02   
415-315 0 San Francisco: Central DA CA SNJSCAYB0MD  722   2004-05-24   
415-321 A San Francisco: Central DA CA SNJSCAYB0MD  722      
415-321 1 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-321 2 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-321 3 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-321 4 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-321 5 San Francisco: Central DA CA SNJSCAYB0MD  722      

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

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