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.

Switch: MTENTXXA0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
430-372 A Oak Hill TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2024-12-29   
430-372 1 Oak Hill TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2024-12-29   
430-374 A Hudson (Cherokee) TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2024-12-15   
430-374 1 Hudson (Cherokee) TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2024-12-15   
903-795 2 Maydelle TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2025-05-25   

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

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