North American Telephone Operator
North American
Telephone Operator

Phone prefix +1-303900

Phone prefix: +1303900
This prefix is distributed within the state Colorado
The largest city within this prefix is Idaho Springs, CO
District: Not defined
The largest organization: Level 3 Communications
Phone numbers of the state Colorado
Time Zone: Mountain
Winter time: UTC-7
Summer time: UTC-6
The largest city within the prefix of +1-303900.... numbers is shown below Idaho Springs, CO.

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