| US | AS23427 | Glenbard HSD #87 |
| US | AS46286 | Cook County |
| US | AS395068 | McHenry County College District 528 |
| US | AS33019 | Wheaton College |
| US | AS32294 | City of Champaign, Illinois |
| US | AS15118 | Southern Illinois University - School of Medicine |
| US | AS63130 | National-Louis University |
| US | AS32344 | Community High School District 99 |
| US | AS1702 | CHICAGO STATE UNIVERSITY |
| US | AS53643 | Manteno Community Unit School District 5 |
| US | AS17196 | College of duPage |
| US | AS22666 | Glenbrook High School District |
| US | AS395433 | Township High School District 214 |
| US | AS15337 | Wm. Rainey Harper College |
| US | AS29885 | Univeristy of Chicago Hospitals & Health System |
| US | AS395847 | Maine Township High School District 207 |
| US | AS22978 | Governors State University |
| US | AS1416 | Chicago Public Schools |
| US | AS12239 | Bloomington Public School District No. 87 |
| US | AS394798 | Chicago Park District |
| US | AS397112 | Illinois Mathematics and Science Academy |
| US | AS7386 | Illinois State University |
| US | AS40710 | College of Lake County |
| US | AS40038 | Moraine Valley Community College |
| US | AS13953 | Sauk Valley Community College |
| US | AS394031 | South Suburban College of Cook County |
| US | AS10308 | Northeastern Illinois University |
| US | AS54950 | AEG |
| US | AS19070 | Eastern Illinois University |
| US | AS63056 | Hoopeston Area Schools |
| US | AS19480 | CHICAGO PUBLIC LIBRARY |
| US | AS23434 | State Universities Retirement System |
| US | AS53642 | Central Community Unit School District 301 |
| US | AS53695 | Southern Illinois University at Edwardsville |
| US | AS33460 | Waubonsee Community College |
| US | AS22887 | Western Illinois University |
| US | AS32464 | University Of Illinois College Of Medicine At Peoria |
| US | AS29993 | North Central College |
| US | AS394534 | City of Chicago |
| US | AS6200 | University of Illinois Chicago |
| US | AS394026 | Village of Schaumburg |
| US | AS26367 | Bradley University |
| US | AS394797 | Millikin University |
| US | AS11417 | Northern Illinois University |
| US | AS174 | Cogent Communications, Inc. |
| TW | AS9505 | TWGate |
| US | AS7018 | AT&T US - 7018 |
| US | AS11796 | WIN Technology |
| US | AS29838 | Atlantic Metro |
| US | AS32787 | Akamai Prolexic DDoS Mitigation |
