Local Calling Guide

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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-957 A Oakland: Trinidad DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-957 0 Oakland: Trinidad DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-957 1 Oakland: Trinidad DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-957 2 Oakland: Trinidad DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-957 3 Oakland: Trinidad DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-05-03   
510-957 4 Oakland: Trinidad DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-03-05   
510-957 5 Oakland: Trinidad DA CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2013-08-15   
510-957 6 Oakland: Trinidad DA CA   829J PAETEC ITEL, LLC 722   2013-09-18   
510-957 7 Oakland: Trinidad DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-08-07   
510-957 8 Oakland: Trinidad DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-07   
510-957 9 Oakland: Trinidad DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-07   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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