Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-223 A Soledad CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-223 0 Soledad CA   981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-223 1 Soledad CA   981E BANDWIDTH.COM CLEC, LLC - CA 736   2010-07-04   
831-223 2 Soledad CA   9262 UTILITY TELECOM GROUP, LLC - CA 736   2006-06-14   
831-223 3 Soledad CA   5562 METROPCS, INC. 736   2005-11-09   
831-223 4 Soledad CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2005-07-31   
831-223 5 Soledad CA   7421 AT&T - LOCAL 736   2006-11-17   
831-223 6 Soledad CA   5562 METROPCS, INC. 736   2007-10-08   
831-223 7 Soledad CA   5562 METROPCS, INC. 736   2010-09-30   
831-223 8 Soledad CA   5562 METROPCS, INC. 736   2008-12-22   
831-223 9 Soledad CA   981E BANDWIDTH.COM CLEC, LLC - CA 736      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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