Phone prefix +1-631778
Phone prefix: +1631778
This prefix is distributed within the state New York
The largest city within this prefix is Central Islip, NY
District: Suffolk
The largest organization: Allegiance Telecom
Time Zone: Eastern
Winter time: UTC-5
Summer time: UTC-4
The largest city within the prefix of +1-631778.... numbers is shown below
Central Islip, NY.