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.

Grass Valley, OR [Prefix detail]

LATA: 672 PORTLAND OR

LIR:

V: 06811 H: 08624

ILEC: 4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR

NPA 458:

746

NPA 541:

333 394

See all [Local Prefixes]

Local calling TO 2 exchanges: [Reverse direction]

Rate centrePlan typeCall typeMonthly limit (minutes)NoteEffective date
Moro, OR     
The Dalles, OR     

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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