Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 442 [Rate centres in NPA 442] [Dial plan for NPA 442]

NXX: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-423 A Lake Isabella CA VTVLCAXAX4Y  506J TWILIO INTERNATIONAL INC 730   2020-12-29   
442-423 0 Lake Isabella CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2020-12-12   
442-423 1 Lake Isabella CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-08-09   
442-423 2 Lake Isabella CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-06-11   
442-423 3 Lake Isabella CA VTVLCAXAXKX  857F MCC TELEPHONY OF THE WEST, LLC - CA 730   2021-01-11   
442-423 4 Lake Isabella CA VTVLCAXAX4Y  506J TWILIO INTERNATIONAL INC 730   2020-11-22   
442-423 8 Lake Isabella CA   6529 T-MOBILE USA, INC. 730   2022-04-17   
442-423 9 Lake Isabella CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2021-03-06   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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