406 Area Code Phone Directory

Information for Area Code 406

State: MT
Largest City in Area: BILLINGS

Where is Area Code 406?

Area code (406) is in the state of MT. Below, are the major cities in the area code (406).

Major Cities in 406

BILLINGS, MT (448,432)
MISSOULA, MT (310,785)
GREAT FALLS, MT (236,511)
BOZEMAN, MT (217,335)
HELENA, MT (183,266)
KALISPELL, MT (152,451)
BUTTE, MT (115,210)
BELGRADE, MT (78,725)
LAUREL, MT (56,967)
LIVINGSTON, MT (51,461)

Zip Codes in 406

59001
59002
59003
59004
59006
59007
59008
59010
59011
59012
59013
59014
59015
59016
59018
59019
59020
59022
59024
59025