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: MRTTOH3737G

Remotes:

Switch Switch name Switch type
BLPROH42RS1  BELPRE  5BR 
NWMTOH86RS1  NEW MATAMORAS  5ER 
NWPTOH47RS1  NEWPORT  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
740-373 A Marietta OH 9321 AMERITECH OHIO 324      
740-374 A Marietta OH 9321 AMERITECH OHIO 324      
740-376 A Marietta OH 9321 AMERITECH OHIO 324      
740-568 A Marietta OH 9321 AMERITECH OHIO 324      

Last updated: Sat, 10 Oct 2020 02:22:41 UTC

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