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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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331 | 250 | AURORA | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
331 | 250 | AURORA | Illinois | DENALI SPECTRUM LICENSE, LLC | More | |
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 |