Phone prefix +1 (603) 456-XXXX
Phone prefix: +1603456
This prefix is distributed within the state New Hampshire
The largest city within this prefix is Warner, NH
District: Merrimack
The largest organization: Merrimack County Telephone Co.

Time Zone: Eastern
Winter time: UTC-5
Summer time: UTC-4
The largest city within the prefix of +1 (603) 456-XXXX numbers is shown below
Warner, NH.