Phone prefix +1-406478
Phone prefix: +1406478
This prefix is distributed within the state Montana
The largest city within this prefix is Sidney, MT
District: Richland
The largest organization: Cellco Partnership DBA Verizon Wireless
Time Zone: Mountain
Winter time: UTC-7
Summer time: UTC-6
The largest city within the prefix of +1-406478.... numbers is shown below
Sidney, MT.