Local Calling Guide

Rate centre search

Search by rate centre (exchange) name, region, area code, LATA. Enter full or partial name.

OCN: 1679 INTERSTATE TELECOM COOP, INC. - SD

Rate centre ILEC LATA LIR

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.