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: BILXMSEDX2Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
228-222 9 Pass Christian MS 593K MCC TELEPHONY LLC 484   2012-10-21   
228-231 A Bay St Louis MS 593K MCC TELEPHONY LLC 484      
228-231 1 Bay St Louis MS 593K MCC TELEPHONY LLC 484   2012-10-21   
228-231 2 Bay St Louis MS 593K MCC TELEPHONY LLC 484   2017-09-16   
228-305 4 Pearlington MS 593K MCC TELEPHONY LLC 484   2012-10-21   

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

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