Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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
510-940 2 Hayward CA   722      
510-940 4 Hayward CA   722      
510-940 7 Hayward CA   722      
510-953 7 Fremont-Newark: Main DA CA   722   2014-09-30   
510-964 5 El Sobrante-Pinole CA   722   2003-09-30   
510-965 6 Richmond CA   722   2001-09-03   
510-982 7 Oakland: Berkeley DA CA   722   2001-09-03   
510-982 8 Oakland: Berkeley DA CA   722   2001-09-03   
510-995 A Oakland: Alameda DA CA SNJSCAYB0MD  722      
510-995 1 Oakland: Alameda DA CA   722      
510-995 2 Oakland: Alameda DA CA   722      
510-995 3 Oakland: Alameda DA CA   722      
510-995 4 Oakland: Alameda DA CA   722      
510-995 5 Oakland: Alameda DA CA   722      
510-995 9 Oakland: Alameda DA CA   722      
512-213 3 Lockhart TX   558   2010-12-23   
512-229 A Elgin TX AUSTTXEE7MD  558      
512-229 2 Elgin TX   558   2007-07-13   
512-309 3 Taylor TX   558   2010-12-23   
512-337 0 Leander TX   558   2007-07-13   
512-381 A Austin TX AUSTTXEE7MD  558      
512-515 4 Liberty Hill EACS TX   558   2010-12-23   
512-678 A Bastrop TX AUSTTXEE7MD  558      
512-678 2 Bastrop TX   558      
512-678 4 Bastrop TX   558      
512-678 7 Bastrop TX   558      
512-702 A Austin TX AUSTTXEE7MD  558      
512-702 3 Austin TX   558   2022-07-24   
512-702 4 Austin TX   558   2022-07-24   
512-702 8 Austin TX   558   2022-07-24   
512-735 A Austin TX AUSTTXEE7MD  558      
512-798 5 Smithville TX   558   2010-12-23   
512-880 A Bastrop TX AUSTTXEE7MD  558      
512-880 5 Bastrop TX   558   2022-07-24   
512-880 7 Bastrop TX   558   2022-07-24   
512-953 4 Austin TX   558   2015-05-04   
512-960 8 Austin TX   558   2014-06-20   
530-203 A Elk Creek CA CHICCA01XQX  724      
530-203 3 Elk Creek CA   724   2013-07-13   
530-207 5 Woodland CA   726   2005-04-29   
530-215 2 Redding CA   724   2012-09-09   
530-237 8 Marysville CA   726      
530-239 6 Mount Shasta CA   724   2011-05-14   
530-259 8 Chester CA   724   2021-05-03   
530-284 2 Greenville CA   724   2021-05-06   
530-314 5 South Tahoe CA   726   2011-04-22   
530-327 5 Paradise CA   724   2010-11-28   
530-330 8 Willows CA   724   2011-05-12   
530-337 3 Montgomery Creek CA   724   2017-09-09   
530-344 4 Placerville: West DA CA   726   2003-10-29   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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