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: BYCYMIMNDS0

Remotes:

Switch Switch name Switch type
BDAXMIMNRSA  BAD AXE  DE5 
BYPTMIMNRSA  BAY PORT  DE5 
FRGRMIMNRS0  FAIRGROVE  DE5 
FRWLMIWSRS1  FARWELL  DLU 
GGTWMIRMRSA  GAGETOWN  DE5 
OWNDMIMNRSA  OWENDALE  DE5 
UBLYMIUBRSA  UBLY  DE5 
UNVLMIMNRS0  UNIONVILLE  DE5 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
989-891 A Bay City MI 9323 MICHIGAN BELL TEL CO 344      
989-892 A Bay City MI 9323 MICHIGAN BELL TEL CO 344      
989-893 A Bay City MI 9323 MICHIGAN BELL TEL CO 344      
989-894 A Bay City MI 9323 MICHIGAN BELL TEL CO 344      
989-895 A Bay City MI 9323 MICHIGAN BELL TEL CO 344      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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