Montana Area Code – Area Codes List And Maps

Montana is Officially using 1 Montana Area Code. In Which None Of Them Are Overlay Codes. It officially has one area code 406, when the numbering system was established in 1947. Today Area Code 406 Is the Most Populated Areas Which Covers The Entire States. It Is only area code since area codes were created in 1947.

Montana Area Code

Montana Officially using 1 Area Code

List Of Cities Which Is Covered By Montana Area Code:-

Area Code 406:- It Covers The Entire State

History And Changes in Area Code

In 01/01/1947 – Area Code 406 Was Set Into Service.

Montana Area Code

What Is Area Code?

Area code is a three-digit code in which US and other countries are divided. It is Also a local telephone dialing code where They Call each other With These Codes.

Why are area codes added?

When The Current Area Codes Expires Or Increase in the use of cellular phones, modems, and Internet access It Creates Problems. So That why Area Codes Are Added And each area code has a potential capacity of about 8 million unique phone numbers


Once The new Area Codes Rae assigned there is usually a 6 Months Period To Move. At that time Customers Are Encouraged To Use The Code But Seven Digit Dialling is Allowed. After 6 Months customers are required to use the new telephone no.

Other Area Codes

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