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: BILXMSEDX9Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
228-213 1 Gulfport MS 073H TELNYX LLC 484   2021-12-24   
228-279 0 Gulfport MS 073H TELNYX LLC 484   2023-07-03   
228-279 1 Gulfport MS 073H TELNYX LLC 484   2023-07-03   
228-888 A Pearlington MS 073H TELNYX LLC 484      
228-888 8 Pearlington MS 073H TELNYX LLC 484   2017-04-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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