Phone prefix +1-603504
Phone prefix: +1603504
This prefix is distributed within the state New Hampshire
The largest city within this prefix is Claremont, NH
District: Sullivan
The largest organization: United States Cellular Corp. - New Hampshire
Time Zone: Eastern
Winter time: UTC-5
Summer time: UTC-4
The largest city within the prefix of +1-603504.... numbers is shown below
Claremont, NH.