631 Rate Centers & Exchanges
23 rate centers · New York · Eastern Time
A rate center is the geographic unit used by phone carriers to determine local calling areas and billing. Each rate center has a specific name and set of NXX exchanges (the 3-digit prefix after the area code) assigned to it. The map below shows the 23 rate centers within area code 631.
Rate Center Locations
23 centers in area code 631All Rate Centers in Area Code 631
| Rate Center |
|---|
|
Amityville
|
|
Babylon
|
|
Bayport
|
|
Brentwood
|
|
Center Moriches
|
|
Commack
|
|
Deer Park
|
|
Farmingdale
|
|
Fire Island
|
|
Huntington
|
|
Islip
|
|
Kings Park
|
|
Mattituck
|
|
Midland
|
|
Riverhead
|
|
Ronkonkoma
|
|
Selden
|
|
Smithtown
|
|
Southampton
|
|
Stony Brook
|
|
Water Mill
|
|
West Commack
|
|
Westhampton
|