Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chualar, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
831-232 A   515J IP HORIZON LLC 736      
831-232 0   981E BANDWIDTH.COM CLEC, LLC - CA 736   2010-08-28   
831-232 1   515J IP HORIZON LLC 736      
831-232 2   515J IP HORIZON LLC 736      
831-232 3   073H TELNYX LLC 736   2018-07-03   
831-232 4   515J IP HORIZON LLC 736      
831-232 5   516C AT&T CORP. 736   2011-08-05   
831-232 6   981E BANDWIDTH.COM CLEC, LLC - CA 736   2015-02-23   
831-232 7   516J TON80 COMMUNICATIONS, LLC 736   2022-03-21   
831-232 8   981E BANDWIDTH.COM CLEC, LLC - CA 736   2015-10-15   
831-232 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736   2016-03-05   
831-306 A SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-306 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-306 1   939H COMMIO, LLC 736   2022-11-21   
831-306 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-306 3   649C ONVOY, LLC - CA 736   2023-07-24   
831-306 8   649C ONVOY, LLC - CA 736   2021-07-30   
831-306 9   073H TELNYX LLC 736   2023-06-25   
831-679 A CHLRCA11RS0  9740 PACIFIC BELL 736      
831-679 0   9740 PACIFIC BELL 736      
831-679 1   9740 PACIFIC BELL 736      
831-679 2   9740 PACIFIC BELL 736      
831-679 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2005-07-26   
831-679 4   649C ONVOY, LLC - CA 736   2017-04-27   
831-679 7   9262 UTILITY TELECOM GROUP, LLC - CA 736   2006-06-14   
831-679 8   145J TERRA NOVA TELECOM INC. 736   2021-01-12   
831-679 9   776C CHARTER FIBERLINK CA-CCO, LLC - CA 736   2018-09-11   
831-705 A SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736      
831-705 0   624H ONVOY SPECTRUM, LLC 736   2024-01-05   
831-705 1   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736   2020-03-09   
831-705 2   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736   2012-02-05   
831-705 3   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 736   2012-05-01   
831-705 4   649C ONVOY, LLC - CA 736   2022-05-12   
831-705 5   649C ONVOY, LLC - CA 736   2019-07-26   
831-705 6   649C ONVOY, LLC - CA 736   2019-07-26   
831-705 7   508J CENTURYLINK COMMUNICATIONS, LLC 736   2015-11-09   
831-705 8   649C ONVOY, LLC - CA 736   2022-02-11   
831-705 9   6010 NEW CINGULAR WIRELESS PCS, LLC 736   2018-02-22   

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

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