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: HMBLTNMADS1

Remotes:

Switch Switch name Switch type
DYERTNMTRS0  DYER  DE5 
GBSNTNMTRS0  GIBSON  DCN 
GLSNTNMARS0  GLEASON  DCN 
MILNTNMARS0  MILAN  5RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
731-222 A Humboldt TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 468      
731-784 A Humboldt TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 468      
731-824 A Humboldt TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 468      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.