Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 415 [Rate centres in NPA 415] [Dial plan for NPA 415]

NXX: 323

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
415-323 A Nicasio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
415-323 0 Nicasio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
415-323 1 Nicasio CA   515J IP HORIZON LLC 722      
415-323 2 Nicasio CA   515J IP HORIZON LLC 722      
415-323 3 Nicasio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
415-323 4 Nicasio CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-31   
415-323 5 Nicasio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-10-24   
415-323 6 Nicasio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-10-10   
415-323 7 Nicasio CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2008-07-24   
415-323 8 Nicasio CA   6529 T-MOBILE USA, INC. 722   2008-01-16   
415-323 9 Nicasio CA   6529 T-MOBILE USA, INC. 722   2008-01-16   

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

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