Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
510-907 5 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2015-05-04   
510-921 A Hayward CA SNFCCAFJDS0  722      
510-921 3 Hayward CA SNFCCAFJDS0  722      
510-921 5 Hayward CA SNFCCAFJDS0  722      
510-942 A Richmond CA SNRSCA01KMD  722      
510-942 2 Richmond CA SNRSCA01KMD  722   2015-01-29   
510-942 3 Richmond CA SNRSCA01KMD  722   2015-01-29   
510-942 4 Richmond CA SNRSCA01KMD  722   2015-01-29   
510-946 3 Fremont-Newark: Oliver DA CA SNRSCA01KMD  722   2015-09-25   
510-946 4 Fremont-Newark: Oliver DA CA SNRSCA01KMD  722   2015-09-25   
510-946 5 Fremont-Newark: Oliver DA CA SNRSCA01KMD  722   2015-09-25   
510-946 6 Fremont-Newark: Oliver DA CA SNRSCA01KMD  722   2015-09-25   
510-946 8 Fremont-Newark: Oliver DA CA SNRSCA01KMD  722   2015-11-23   
510-971 A Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      
510-971 5 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2021-03-03   
510-971 6 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2021-01-21   
510-971 7 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2021-01-21   
510-971 8 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2021-01-21   
510-971 9 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2021-01-21   
510-992 5 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2020-09-15   
530-230 6 Chico CA CHICCA01XMD  724   2002-10-22   
530-264 A Nevada City CA SCRLCAXXDS0  726      
530-264 9 Nevada City CA SCRLCAXXDS0  726      
530-278 A Grass Valley: South DA CA SCRLCAXXDS0  726      
530-278 9 Grass Valley: South DA CA SCRLCAXXDS0  726      
530-285 A Camptonville CA SCRLCAXXDS0  726      
530-285 9 Camptonville CA SCRLCAXXDS0  726      
530-290 9 Alleghany CA SCRLCAXXDS0  726      
530-296 A Placerville: Kyburz DA CA SCRLCAXXDS0  726      
530-296 9 Placerville: Kyburz DA CA SCRLCAXXDS0  726      
530-313 A Shingle Springs CA SCRLCAXXDS0  726      
530-313 9 Shingle Springs CA SCRLCAXXDS0  726      
530-324 7 Willow Creek CA CHICCA01XMD  724   2013-04-22   
530-331 6 Yreka CA CHICCA01XMD  724   2012-11-12   
530-349 A Colfax: Colfax DA CA SCRLCAXXDS0  726      
530-349 9 Colfax: Colfax DA CA SCRLCAXXDS0  726      
530-351 A Redding CA   724   2025-02-14   
530-351 0 Redding CA   724      
530-351 6 Redding CA   724   2003-05-11   
530-351 9 Redding CA   724      
530-353 6 Oroville CA CHICCA01XMD  724   2012-11-12   
530-361 0 Willows CA CHICCA01XMD  724   2012-11-12   
530-377 8 Cottonwood CA CHICCA01XMD  724   2012-04-23   
530-388 A Alta CA SCRLCAXXDS0  726      
530-388 9 Alta CA SCRLCAXXDS0  726      
530-401 A Auburn: Main DA CA SCRLCAXXDS0  726      
530-401 9 Auburn: Main DA CA SCRLCAXXDS0  726      
530-427 A Soda Springs CA SCRLCAXXDS0  726      
530-427 9 Soda Springs CA SCRLCAXXDS0  726      
530-438 6 Maxwell CA SCRMCA01X2Z  726   2023-02-01   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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