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: NILSOH65DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
330-505 A Niles OH 9321 AMERITECH OHIO 322      
330-530 A Girard OH 9321 AMERITECH OHIO 322      
330-544 A Niles OH 9321 AMERITECH OHIO 322      
330-652 A Niles OH 9321 AMERITECH OHIO 322      
330-989 A Niles OH 9321 AMERITECH OHIO 322      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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