313 Rate Centers & Exchanges
6 rate centers · Michigan · 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 6 rate centers within area code 313.
Rate Center Locations
6 centers in area code 313All Rate Centers in Area Code 313
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Detroit Zone 1
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Detroit Zone 2
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Detroit Zone 3
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Detroit Zone 4
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Detroit Zone 5
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Detroit Zone 6
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