Area code 406
label: Código de área 406 @es
label: 北美电话区号406 @zh
label: Indicatif régional 406 @fr
description: Telephone area code for all of Montana
subject: Category:Area codes in Montana
subject: Category:1947 establishments in Montana
subject: Category:Area codes in the United States
subject: Category:Telecommunications-related introductions in 1947
this: 406
e: 605701
n: 236
s: ID
s: BC
s: SD
s: 307
s: SK
s: AB
s: ND
s: WY
state: MT
w: 208
width: 40.0
hypernym: Code