Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 341 [Rate centres in NPA 341] [Dial plan for NPA 341]

NXX: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-221 A Hayward CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
341-221 0 Hayward CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2022-05-01   
341-221 1 Hayward CA SNJUCACL00Z  490J DISH WIRELESS, LLC 722   2023-06-08   
341-221 2 Hayward CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2022-07-11   
341-221 3 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2022-05-05   
341-221 4 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2022-05-05   
341-221 5 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2022-06-12   
341-221 6 Hayward CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2022-05-01   
341-221 7 Hayward CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2022-04-30   
341-221 8 Hayward CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2022-04-30   
341-221 9 Hayward CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2022-04-30   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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