564 Rate Centers & Exchanges
4 rate centers · Washington · Pacific 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 4 rate centers within area code 564.
Rate Center Locations
4 centers in area code 564All Rate Centers in Area Code 564
| Rate Center |
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Centralia
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Mount Vernon
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Olympia
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Silverdale
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