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.

Duncan, AZ [Prefix detail]

LATA: 668 TUCSON AZ

LIR:

V: 09157 H: 06179

ILEC: 3333 COPPER VALLEY TELEPHONE, INC.

NPA 928:

359 439

See all [Local Prefixes]

Local calling FROM 3 exchanges: [Reverse direction]

Rate centrePlan typeCall typeMonthly limit (minutes)NoteEffective date
Clifton, AZ     
Virden, NM     
York Valley, AZ     

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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