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: 217

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-217 A Boulder Creek CA SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
831-217 0 Boulder Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-04   
831-217 1 Boulder Creek CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-09-10   
831-217 3 Boulder Creek CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-08-28   
831-217 4 Boulder Creek CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   
831-217 5 Boulder Creek CA SNFCCA01XGX  516C AT&T CORP. 722   2011-09-26   
831-217 6 Boulder Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-08-03   
831-217 7 Boulder Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2009-12-18   
831-217 8 Boulder Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-04   
831-217 9 Boulder Creek CA SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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