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2 records found
| 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 | 521 | VANCOUVER | Oregon | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 503 | 521 | BEAVERTON | Oregon | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | IND. TELCO | More |
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VOIP - Voice Over Internet Protocol - Facts and Updates |
Get the Facts - Wireless/Local Number Portability - and Updates
WIMax - Worldwide Interoperability for Microwave Access - News and Products |