Keystone South Dakota Area Code

What is Keystone (South Dakota) area code?

Keystone in South Dakota area code is 605.

This means that if you want to make a phone call to a Keystone in the state of South Dakota telephone number you must use the 605 area code.

Is the Keystone (SD) area code always the same?

Yes, phones located in Keystone, South Dakota, will always have the same area codes, in this case would be 605. However, keep in mind that this does not only pertain to this region, as it can also be used in other regions of South Dakota.

In conclusion, if you need to make a call to an area code phone in Keystone and you ask yourself: What is the Keystone (South Dakota) area code?, the answer will be 605.

How to call from abroad to a phone located in Keystone, SD?

To call abroad to Keystone in South Dakota you must dial the country code for the United States (+1), the dialing code and the local telephone number you wish to call.

+1 605 [Phone number]

It should be remembered that all calls from one country to another country, for example calling from outside the USA to Keystone telephone numbers, will have a higher cost than calls made in the same country. The final cost of the call will be defined by the telephone company with which the call is made.