Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 945 [Rate centres in NPA 945] [Dial plan for NPA 945]

NXX: 440

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
945-440 A Plano TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2026-07-16   
945-440 1 Plano TX   6529 T-MOBILE USA, INC. 552   2026-08-27   
945-440 3 Plano TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2026-08-08   
945-440 4 Plano TX DLLSTX97X8X  321J HD CARRIER LLC 552   2026-07-18   
945-440 5 Plano TX DLLSTX97X8X  321J HD CARRIER LLC 552   2026-07-18   
945-440 6 Plano TX DLLSTX97X8X  321J HD CARRIER LLC 552   2026-07-18   
945-440 7 Plano TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2026-07-20   
945-440 8 Plano TX   903C ONVOY, LLC - TX 552   2026-07-20   
945-440 9 Plano TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2026-07-16   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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