Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 723

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-723 A Martinez CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-723 0 Martinez CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-723 1 Martinez CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-09-03   
925-723 2 Martinez CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2016-01-04   
925-723 3 Martinez CA   5562 METROPCS, INC. 722   2020-11-14   
925-723 4 Martinez CA   5562 METROPCS, INC. 722   2020-11-14   
925-723 5 Martinez CA   321J HD CARRIER LLC 722   2016-06-06   
925-723 6 Martinez CA   321J HD CARRIER LLC 722   2016-06-06   
925-723 7 Martinez CA   433E SONIC TELECOM, LLC - CA 722   2012-12-22   
925-723 8 Martinez CA   515J IP HORIZON LLC 722   2016-09-15   
925-723 9 Martinez CA   073H TELNYX LLC 722   2017-06-12   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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