Local Calling Guide

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NPA: 341 [Rate centres in NPA 341] [Dial plan for NPA 341]

NXX: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-251 A El Sobrante-Pinole CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-05-30   
341-251 0 El Sobrante-Pinole CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2024-07-27   
341-251 1 El Sobrante-Pinole CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2024-07-27   
341-251 2 El Sobrante-Pinole CA OKLDCA03XKY  624H ONVOY SPECTRUM, LLC 722   2024-10-20   
341-251 3 El Sobrante-Pinole CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-12-14   
341-251 4 El Sobrante-Pinole CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-11-30   
341-251 5 El Sobrante-Pinole CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-11-22   
341-251 6 El Sobrante-Pinole CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-09-28   
341-251 7 El Sobrante-Pinole CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-09-28   
341-251 8 El Sobrante-Pinole CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-09-09   
341-251 9 El Sobrante-Pinole CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-05-30   

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

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