Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]

NXX: 834

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-834 A North Naper SD LYNCNEXSDS1  1525 THREE RIVER TELCO 644      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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