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: 384

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
415-384 A Mill Valley CA MLVYCA01DS0  9740 PACIFIC BELL 722      
415-384 0 Mill Valley CA MLVYCA01DS0  9740 PACIFIC BELL 722      
415-384 1 Mill Valley CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2016-02-06   
415-384 2 Mill Valley CA MLVYCA01DS0  9740 PACIFIC BELL 722      
415-384 3 Mill Valley CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2000-10-04   
415-384 4 Mill Valley CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2000-10-04   
415-384 5 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-07   
415-384 6 Mill Valley CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-04-01   
415-384 7 Mill Valley CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2006-06-21   
415-384 8 Mill Valley CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2011-09-15   
415-384 9 Mill Valley CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-23   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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