603 Rate Centers & Exchanges
27 rate centers · New Hampshire · 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 27 rate centers within area code 603.
Rate Center Locations
27 centers in area code 603All Rate Centers in Area Code 603
| Rate Center |
|---|
|
Barrington
|
|
Campton
|
|
Canaan
|
|
Chester
|
|
Deerfield
|
|
Derry
|
|
Dover
|
|
Epsom
|
|
Exeter
|
|
Goffstown
|
|
Hanover
|
|
Hillsboro
|
|
Hollis
|
|
Laconia
|
|
Manchester
|
|
Meredith
|
|
Merrimack
|
|
Nashua
|
|
Newmarket
|
|
Newport
|
|
Orford
|
|
Portsmouth
|
|
Salem
|
|
Seabrook
|
|
Suncook
|
|
Tilton
|
|
Troy
|