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: RNDPMTXCDS0

Remotes:

Switch Switch name Switch type
BLNGMT30RS0    DE4 
CSTRMTXCRS1    DCO 
GRRNMTXCRS1    DCO 
LAVNMTXCRS1    DCO 
MELSMTXCRS1    DCO 
MSLSMTXCRS1    DCO 
ROY MTXCRS1    DCO 
RYGTMTXBRS1    DCO 
RYGTMTXCRS1    DCO 
WNTTMTXCRS0    DS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-323 A Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      
406-323 1 Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      
406-323 2 Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      
406-323 3 Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      
406-323 4 Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      
406-323 7 Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      
406-323 8 Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      
406-323 9 Roundup MT 2246 MID-RIVERS TEL. COOP., INC. 650      

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.