Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 432

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-432 A Leander TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2026-02-01   
737-432 0 Leander TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2026-02-01   
737-432 1 Leander TX   624H ONVOY SPECTRUM, LLC 558   2026-08-28   
737-432 2 Leander TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2026-09-13   
737-432 7 Leander TX   903C ONVOY, LLC - TX 558   2026-09-20   
737-432 8 Leander TX   903C ONVOY, LLC - TX 558   2026-09-20   
737-432 9 Leander TX   903C ONVOY, LLC - TX 558   2026-09-20   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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