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: SPVYMNXADS0

Remotes:

Switch Switch name Switch type
CHESIAXARS0  CHESTER  1RC 
PSTNMNXARS0  PRESTON  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
507-346 A Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 0 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 1 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 2 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 4 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 6 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 7 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 8 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-346 9 Spring Valley MN 1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.