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.

OCN: 1230 NORTHEAST IOWA TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
563-536 A Farmersburg IA FMBGIAXORS6  635      
563-539 A Monona IA MONNIAXODS1  635      
563-783 A St Olaf IA STOLIA01RS0  635      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.