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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 432 [Rate centres in NPA 432] [Dial plan for NPA 432]

NXX: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
432-321 A Marathon TX MDLDTXMUXTX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 542      
432-321 0 Marathon TX MDLDTXMUXAY  073H TELNYX LLC 542   2023-10-15   
432-321 1 Marathon TX MDLDTXMUXCY  624H ONVOY SPECTRUM, LLC 542   2024-03-21   
432-321 2 Marathon TX   515J IP HORIZON LLC 542   2025-03-31   
432-321 3 Marathon TX   515J IP HORIZON LLC 542   2025-03-31   
432-321 6 Marathon TX MDLDTXMUXTX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 542   2024-10-26   
432-321 7 Marathon TX MDLDTXMUXFY  515J IP HORIZON LLC 542   2023-12-29   
432-321 8 Marathon TX MDLDTXMUXFY  515J IP HORIZON LLC 542   2023-12-29   
432-321 9 Marathon TX MDLDTXMUXTX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 542   2023-08-12   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.