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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 | 216 | PORTLAND | Oregon | LEVEL 3 COMMUNICATIONS, LLC - WA | CLEC | More |
| 503 | 216 | PORTLAND | Oregon | QWEST CORPORATION | RBOC | More |
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