Local Calling Guide

Rate centre information

Search by rate centre (exchange) name, region, area code, LATA. Enter full or partial name. Use official postal abbreviations for province/state/territory.

Thomas (Bureau), IL [Prefix detail]

LATA: 364 STERLING IL

LIR:

V: 06221 H: 03706

ILEC: 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL

NPA 779:

322

NPA 815:

542

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Local calling FROM: [Reverse direction]

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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