WHAT AND WHERE:. Per the Public Utilities Commission in Colorado, customers in the 719 and 970 area codes will be required to dial 10 digits (area code + telephone number) when making local calls.

Starting Saturday April 24 Colorado customers with numbers in the 719 and 970 area codes should start dialing 10-digits for all local calls. 1 weather alerts 1 closings/delays Watch Now ...

Starting Sunday, October 24 customers who don't dial the full 10 digits, which is the area code plus the telephone number, will not have their call go through.