Illinois Telecommunications Service Provider

Chicago ⁽⁴²⁴⁾

Schaumburg ⁽³³⁾

Aurora ⁽³¹⁾

Naperville ⁽²⁷⁾

Peoria ⁽²⁶⁾

Rockford ⁽²⁴⁾

Joliet ⁽²⁴⁾

Springfield ⁽²¹⁾

Elk Grove Village ⁽¹⁹⁾

Oak Brook ⁽¹⁵⁾

Hoffman Estates ⁽¹⁴⁾

Mount Prospect ⁽¹³⁾

Bloomington ⁽¹³⁾

Bolingbrook ⁽¹³⁾

Champaign ⁽¹³⁾

Elgin ⁽¹³⁾

Des Plaines ⁽¹¹⁾

Waukegan ⁽¹¹⁾

Palatine ⁽¹¹⁾

Lombard ⁽¹⁰⁾

Skokie ⁽¹⁰⁾

Downers Grove ⁽¹⁰⁾

Calumet City ⁽¹⁰⁾

Northbrook ⁽¹⁰⁾

Elmhurst ⁽¹⁰⁾

Arlington Heights ⁽¹⁰⁾

Wheaton ⁽⁹⁾

Wheeling ⁽⁹⁾

Crystal Lake ⁽⁹⁾

Saint Charles ⁽⁹⁾

Quincy ⁽⁹⁾

Orland Park ⁽⁹⁾

Moline ⁽⁹⁾

Glenview ⁽⁹⁾

East Saint Louis ⁽⁸⁾

Buffalo Grove ⁽⁸⁾

Streamwood ⁽⁸⁾

Decatur ⁽⁸⁾

Lisle ⁽⁸⁾

Evanston ⁽⁸⁾