Local Calling Guide

Area code/prefix search

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Millville, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
530-547 A PLCDCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 0   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 1   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 2   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 3   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 4   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 5   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 6   9262 UTILITY TELECOM GROUP, LLC - CA 724   2016-07-09   
530-547 7   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-547 9   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-549 A BLVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-549 0   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-549 3   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-549 4   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-549 5   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-549 6   145J TERRA NOVA TELECOM INC. 724   2025-05-16   
530-549 8   776C CHARTER FIBERLINK CA-CCO, LLC - CA 724   2021-04-15   
530-549 9   2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-779 A CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-779 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-779 2   9262 UTILITY TELECOM GROUP, LLC - CA 724   2021-09-06   
530-779 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-779 7   145J TERRA NOVA TELECOM INC. 724   2026-01-04   
530-779 9   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 724   2019-02-11   

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

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