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.

Switch: SNFCCAMKX6Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
341-200 7 Hercules-Rodeo CA 515J IP HORIZON LLC 722      
341-201 1 Fremont-Newark: Oliver DA CA 515J IP HORIZON LLC 722      
341-226 7 Oakland: Fruitvale DA CA 515J IP HORIZON LLC 722      
341-234 9 Oakland: Alameda DA CA 515J IP HORIZON LLC 722      
341-314 9 El Sobrante-Pinole CA 515J IP HORIZON LLC 722      
341-336 2 Fremont-Newark: Greenleaf DA CA 515J IP HORIZON LLC 722      
341-900 1 Crockett CA 515J IP HORIZON LLC 722      
341-946 0 Oakland: Berkeley DA CA 515J IP HORIZON LLC 722      
408-805 8 Saratoga CA 515J IP HORIZON LLC 722      
408-903 2 San Jose: South DA CA 515J IP HORIZON LLC 722      
415-605 A San Francisco: Central DA CA 515J IP HORIZON LLC 722      
415-729 6 Sausalito CA 515J IP HORIZON LLC 722      
415-873 7 Point Reyes CA 515J IP HORIZON LLC 722      
510-293 6 Hayward CA 515J IP HORIZON LLC 722      
510-832 9 Oakland: Main-Piedmont DA CA 515J IP HORIZON LLC 722      
628-258 4 Nicasio CA 515J IP HORIZON LLC 722      
628-348 1 Belvedere CA 515J IP HORIZON LLC 722      
628-432 9 San Francisco: Montrose-Evergreen DA CA 515J IP HORIZON LLC 722      
628-433 9 Ignacio CA 515J IP HORIZON LLC 722      
628-477 0 Mill Valley CA 515J IP HORIZON LLC 722      
628-667 9 San Rafael CA 515J IP HORIZON LLC 722      
628-766 0 Stinson Beach-Bolinas CA 515J IP HORIZON LLC 722      
628-786 3 San Francisco: Juniper DA CA 515J IP HORIZON LLC 722      
669-348 9 Sunnyvale CA 515J IP HORIZON LLC 722      
669-399 7 San Martin CA 515J IP HORIZON LLC 722      
707-203 9 Elk CA 515J IP HORIZON LLC 722      
707-204 4 Yountville CA 515J IP HORIZON LLC 722      
707-209 3 Vallejo CA 515J IP HORIZON LLC 722      
707-215 0 Hydesville CA 515J IP HORIZON LLC 722      
707-221 3 Bridgeville CA 515J IP HORIZON LLC 722      
707-231 5 Sonoma CA 515J IP HORIZON LLC 722      
707-276 0 Upper Lake CA 515J IP HORIZON LLC 722      
707-281 0 Kelseyville CA 515J IP HORIZON LLC 722      
707-283 6 Petaluma: Main DA CA 515J IP HORIZON LLC 722      
707-285 4 Petaluma: Swift DA CA 515J IP HORIZON LLC 722      
707-313 0 Ukiah CA 515J IP HORIZON LLC 722      
707-314 9 Monte Rio CA 515J IP HORIZON LLC 722      
707-317 9 Vacaville CA 515J IP HORIZON LLC 722      
707-358 1 Weott CA 515J IP HORIZON LLC 722      
707-370 1 Willits CA 515J IP HORIZON LLC 722      
707-394 1 Guerneville CA 515J IP HORIZON LLC 722      
707-398 0 Fairfield-Suisun CA 515J IP HORIZON LLC 722      
707-473 6 Healdsburg CA 515J IP HORIZON LLC 722      
707-501 6 Napa CA 515J IP HORIZON LLC 722      
707-503 4 Sebastopol CA 515J IP HORIZON LLC 722      
707-506 7 Rio Dell CA 515J IP HORIZON LLC 722      
707-532 6 Loleta CA 515J IP HORIZON LLC 722      
707-593 2 Mendocino CA 515J IP HORIZON LLC 722      
707-597 3 Lake Berryessa CA 515J IP HORIZON LLC 722      
707-608 0 Windsor CA 515J IP HORIZON LLC 722      
707-609 0 Bodega Bay CA 515J IP HORIZON LLC 722      
707-614 0 Forestville CA 515J IP HORIZON LLC 722      
707-619 0 Geyserville CA 515J IP HORIZON LLC 722      
707-626 1 Boonville CA 515J IP HORIZON LLC 722      
707-627 2 Lakeport CA 515J IP HORIZON LLC 722      
707-650 0 Pepperwood CA 515J IP HORIZON LLC 722      
707-667 3 Blue Lake CA 515J IP HORIZON LLC 722      
707-698 1 Tomales CA 515J IP HORIZON LLC 722      
707-705 0 Valley Ford CA 515J IP HORIZON LLC 722      
707-715 8 Cobb Mountain CA 515J IP HORIZON LLC 722      
707-717 1 Fortuna CA 515J IP HORIZON LLC 722      
707-739 0 Nice CA 515J IP HORIZON LLC 722      
707-802 0 Middletown CA 515J IP HORIZON LLC 722      
707-804 0 St Helena CA 515J IP HORIZON LLC 722      
707-830 1 Hopland CA 515J IP HORIZON LLC 722      
707-831 1 Clearlake Oaks CA 515J IP HORIZON LLC 722      
707-850 3 Lower Lake CA 515J IP HORIZON LLC 722      
707-854 2 Eureka CA 515J IP HORIZON LLC 722      
707-855 0 Potter Valley CA 515J IP HORIZON LLC 722      
707-858 6 Santa Rosa CA 515J IP HORIZON LLC 722      
707-872 0 Occidental CA 515J IP HORIZON LLC 722      
707-885 4 Gualala CA 515J IP HORIZON LLC 722      
707-891 0 Cloverdale CA 515J IP HORIZON LLC 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.