203 Rate Centers & Exchanges
14 rate centers · Connecticut · 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 14 rate centers within area code 203.
Rate Center Locations
14 centers in area code 203All Rate Centers in Area Code 203
| Rate Center |
|---|
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Bridgeport
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Byram
|
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Danbury
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Darien
|
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Fairfield
|
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Greenwich
|
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Meriden
|
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Naugatuck
|
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New Canaan
|
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New Haven
|
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Norwalk
|
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Stamford
|
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Trumbull
|
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Waterbury
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