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: 515J IP HORIZON LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
707-756 1 Healdsburg CA   722   2016-09-15   
707-772 1 Petaluma: Main DA CA   722   2003-10-13   
707-772 2 Petaluma: Main DA CA   722   2003-10-13   
707-783 0 Rio Dell CA   722   2016-09-15   
707-786 1 Ferndale CA   722   2006-09-28   
707-786 2 Ferndale CA   722   2006-09-28   
707-796 0 Petaluma: Swift DA CA   722   2016-09-15   
707-796 1 Petaluma: Swift DA CA   722   2003-10-13   
707-796 2 Petaluma: Swift DA CA   722   2003-10-13   
707-797 A Bridgeville CA   722      
707-797 1 Bridgeville CA   722      
707-797 2 Bridgeville CA   722      
707-797 4 Bridgeville CA   722   2022-10-20   
707-802 0 Middletown CA SNFCCAMKX6Y  722   2021-05-02   
707-804 0 St Helena CA SNFCCAMKX6Y  722   2021-05-01   
707-809 1 Middletown CA   722   2006-10-09   
707-809 2 Middletown CA   722   2006-10-09   
707-819 1 Napa CA   722   2016-09-15   
707-830 1 Hopland CA SNFCCAMKX6Y  722   2021-05-03   
707-831 1 Clearlake Oaks CA SNFCCAMKX6Y  722   2021-05-02   
707-833 9 Kenwood CA   722   2006-09-23   
707-835 8 Petaluma: Main DA CA   722   2016-09-15   
707-840 1 Arcata CA   722   2003-10-12   
707-840 2 Arcata CA   722   2003-10-12   
707-844 1 Blue Lake CA   722   2016-09-14   
707-847 9 Timber Cove: Timber Cove DA CA   722   2006-09-23   
707-850 3 Lower Lake CA SNFCCAMKX6Y  722   2021-05-01   
707-851 8 Hydesville CA   722   2016-09-15   
707-854 2 Eureka CA SNFCCAMKX6Y  722   2021-05-01   
707-855 0 Potter Valley CA SNFCCAMKX6Y  722   2021-05-02   
707-857 8 Geyserville CA   722   2006-10-12   
707-858 6 Santa Rosa CA SNFCCAMKX6Y  722   2021-05-01   
707-872 0 Occidental CA SNFCCAMKX6Y  722   2021-05-02   
707-876 8 Valley Ford CA   722   2006-10-12   
707-878 8 Tomales CA   722   2006-10-12   
707-881 1 Cobb Mountain CA   722   2006-10-09   
707-881 2 Cobb Mountain CA   722   2006-10-09   
707-882 8 Point Arena CA   722   2016-09-15   
707-883 5 Upper Lake CA   722   2016-09-15   
707-885 4 Gualala CA SNFCCAMKX6Y  722   2021-05-03   
707-885 8 Gualala CA   722   2016-09-15   
707-887 5 Forestville CA   722   2006-10-12   
707-891 0 Cloverdale CA SNFCCAMKX6Y  722   2021-05-01   
707-892 8 Windsor CA   722   2016-09-15   
707-902 1 Hydesville CA   722   2006-10-23   
707-902 2 Hydesville CA   722   2006-10-23   
707-917 9 Vallejo CA   722   2016-09-15   
707-925 8 Leggett CA   722   2006-09-28   
707-947 1 Yountville CA   722   2003-10-13   
707-947 2 Yountville CA   722   2003-10-13   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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