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.

OCN: 823C INTRADO COMMUNICATIONS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
228-279 5 Gulfport MS   484   2026-11-09   
228-407 7 Pascagoula MS   484   2026-10-15   
601-305 8 Hattiesburg MS   482   2026-10-21   
601-561 7 Vicksburg MS   482   2026-10-10   
662-206 7 Columbus MS   482   2026-10-15   
662-679 7 Tupelo MS   482   2026-10-15   
769-381 7 Meridian MS   482   2026-10-19   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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