Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 432 [Rate centres in NPA 432] [Dial plan for NPA 432]

NXX: 340

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
432-340 A Big Spring TX MDLDTXMUXRX  903C ONVOY, LLC - TX 542   2024-08-03   
432-340 0 Big Spring TX MDLDTXMUXRX  903C ONVOY, LLC - TX 542   2024-08-03   
432-340 1 Big Spring TX   515J IP HORIZON LLC 542   2025-03-10   
432-340 2 Big Spring TX   515J IP HORIZON LLC 542   2025-03-10   
432-340 3 Big Spring TX   6529 T-MOBILE USA, INC. 542   2025-09-26   
432-340 4 Big Spring TX   6529 T-MOBILE USA, INC. 542   2025-11-06   
432-340 5 Big Spring TX   6529 T-MOBILE USA, INC. 542   2025-11-06   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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