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: MDSNFLXADS0

Remotes:

Switch Switch name Switch type
CHLKFLXARS0  CHERRY LAKE  RSC 
GNVLFLXARS0  GREENVILLE  RSC 
LEE FLXARS0  LEE  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
850-253 A Madison FL 0340 CENTURYLINK OF FLORIDA, INC. (CENTRAL) 953      
850-290 A Madison FL 0340 CENTURYLINK OF FLORIDA, INC. (CENTRAL) 953      
850-973 A Madison FL 0340 CENTURYLINK OF FLORIDA, INC. (CENTRAL) 953      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.