data network planning in Illinois

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AT&T Illinois Bell

Northport Drive 124, 62002 Alton, United States

AT&T® Official Site. Premium entertainment, the latest cell phones & tablets, unlimited data plans, and high-speed internet. Join the nation's best network today!

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AT&T Internet Service

U.S. 60 2190, 42420 Henderson, United States

AT&T® Official Site. Premium entertainment, the latest cell phones & tablets, unlimited data plans, and high-speed internet. Join the nation's best network today!