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: GLSGMTXCDS0

Remotes:

Switch Switch name Switch type
FRZRMTXCRS1  FRAZER  DMT 
FTPCMTXCRS1  FORT PECK  1RE 
GAFBMTXCRS1  GLASGOW A.F.B.  1RL 
HNDLMTXCRS1  HINSDALE  1RL 
NASHMTXCRS1  NASHUA  1RE 
NGLSMTXCRS1  NORTH GLASGOW  1RE 
NHDLMTXCRS1  NORTH HINSDALE  DMT 
NNSHMTXCRS1  NORTH NASHUA  DMT 
SACOMTXCRS1  SACO  1RE 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-228 A Glasgow MT 2247 NEMONT TEL COOP INC 650      
406-228 2 Glasgow MT 2247 NEMONT TEL COOP INC 650      
406-228 3 Glasgow MT 2247 NEMONT TEL COOP INC 650      
406-228 4 Glasgow MT 2247 NEMONT TEL COOP INC 650      
406-228 6 Glasgow MT 2247 NEMONT TEL COOP INC 650      
406-228 8 Glasgow MT 2247 NEMONT TEL COOP INC 650      
406-228 9 Glasgow MT 2247 NEMONT TEL COOP INC 650      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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