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Area Code | Prefix | City/Switch Name (Click for city search) | State/Prov. Area Map | Telephone Company Web link | Telco Type | More Info |
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503 | 270 | BEAVERTON | Oregon | TELEPORT COMMUNICATIONS AMERICA, LLC - OR | CLEC | More |
503 | 270 | PORTLAND | Oregon | SPRINT SPECTRUM L.P. | PCS | More |
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