340 Rate Centers & Exchanges
2 rate centers · US Virgin Islands · Alaska 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 2 rate centers within area code 340.
Rate Center Locations
2 centers in area code 340All Rate Centers in Area Code 340
| Rate Center |
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Charlotte Amalie (St Thomas)
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Christiansted (St Croix)
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