Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: FMBGIAXORS6

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
563-536 A Farmersburg IA 1230 NORTHEAST IOWA TEL. CO. 635      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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