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.

St Mary, MT [Prefix detail]

LATA: 648 GREAT FALLS MT

LIR:

V: 05918 H: 07638

ILEC: 9636 QWEST CORPORATION

Includes all or part of:

NPA 406:

732

See all [Local Prefixes]

Local calling FROM 0 exchanges: [Reverse direction]

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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