351 Rate Centers & Exchanges
9 rate centers · Massachusetts · 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 9 rate centers within area code 351.
Rate Center Locations
9 centers in area code 351All Rate Centers in Area Code 351
| Rate Center |
|---|
|
Acton
|
|
Ashby
|
|
Essex
|
|
Harvard
|
|
Ipswich
|
|
Lawrence
|
|
Lowell
|
|
Peabody
|
|
Winchendon
|