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
707-561 7 Vallejo CA SNJSCAYB0MD  722   2002-08-21   
707-583 A Santa Rosa CA SNJSCAYB0MD  722      
707-583 0 Santa Rosa CA SNJSCAYB0MD  722      
707-583 2 Santa Rosa CA SNJSCAYB0MD  722      
707-583 8 Santa Rosa CA SNJSCAYB0MD  722      
707-603 A Napa CA SNJSCAYB0MD  722      
707-603 0 Napa CA SNJSCAYB0MD  722      
707-603 1 Napa CA SNJSCAYB0MD  722      
707-603 2 Napa CA SNJSCAYB0MD  722      
707-603 3 Napa CA SNJSCAYB0MD  722      
707-603 4 Napa CA SNJSCAYB0MD  722      
707-603 6 Napa CA SNJSCAYB0MD  722      
707-603 7 Napa CA SNJSCAYB0MD  722      
707-603 8 Napa CA SNJSCAYB0MD  722      
707-617 5 Fortuna CA SNJSCAYB0MD  722   2018-03-03   
707-625 2 Forestville CA SNJSCAYB0MD  722   2017-03-10   
707-635 7 Dixon CA SCRMCA0121Z  726   2005-12-05   
707-638 4 Vallejo CA SNJSCAYB0MD  722      
707-638 5 Vallejo CA SNJSCAYB0MD  722      
707-652 7 Vallejo CA SNJSCAYB0MD  722   2007-03-29   
707-656 A Vallejo CA SNJSCAYB0MD  722      
707-656 0 Vallejo CA SNJSCAYB0MD  722      
707-674 A Vallejo CA SNJSCAYB0MD  722      
707-674 0 Vallejo CA SNJSCAYB0MD  722      
707-674 2 Vallejo CA SNJSCAYB0MD  722      
707-674 3 Vallejo CA SNJSCAYB0MD  722      
707-684 8 Boonville CA SNJSCAYB0MD  722   2010-12-13   
707-687 1 Windsor CA SNJSCAYB0MD  722   2005-12-05   
707-709 A Calistoga CA SNJSCAYB0MD  722      
707-709 2 Calistoga CA SNJSCAYB0MD  722      
707-720 A Fairfield-Suisun CA SNJSCAYB0MD  722      
707-720 2 Fairfield-Suisun CA SNJSCAYB0MD  722      
707-721 A Sonoma CA SNJSCAYB0MD  722      
707-721 0 Sonoma CA SNJSCAYB0MD  722      
707-721 8 Sonoma CA SNJSCAYB0MD  722   2007-09-10   
707-724 5 Vacaville CA SNJSCAYB0MD  722   2014-07-03   
707-728 3 Guerneville CA SNJSCAYB0MD  722   2013-08-03   
707-732 2 Sonoma CA SNJSCAYB0MD  722   2013-01-17   
707-743 6 Potter Valley CA SNJSCAYB0MD  722   2016-11-11   
707-744 2 Hopland CA SNJSCAYB0MD  722   2013-12-14   
707-752 A Benicia CA SNJSCAYB0MD  722      
707-752 6 Benicia CA SNJSCAYB0MD  722   2002-09-09   
707-752 8 Benicia CA SNJSCAYB0MD  722      
707-754 4 Yountville CA SNJSCAYB0MD  722   2002-04-01   
707-755 2 Santa Rosa CA SNJSCAYB0MD  722   2013-10-14   
707-774 7 Petaluma: Main DA CA SNJSCAYB0MD  722   2007-03-29   
707-774 8 Petaluma: Main DA CA SNJSCAYB0MD  722   2007-03-29   
707-790 A Petaluma: Main DA CA SNJSCAYB0MD  722      
707-790 0 Petaluma: Main DA CA SNJSCAYB0MD  722      
707-790 8 Petaluma: Main DA CA SNJSCAYB0MD  722      

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Last updated: Sat, 01 Jun 2024 11:59:14 UTC

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