the 280 prefixed numbers are Direct In Dial (DID) numbers. These number can also be reached using the telephone number (815) 729-9020 ext. XXXX  Where the extension number is the last four digits of the 280 number.

Example: (815) 280-6620  =  (815) 729-9020 ext. 6620
 

Main Campus	(815) 729-9020
Admissions	(815) 280-2493
Alumni Relations	(815) 280-6620
Athletics	(815) 280-2431
Bookstore	(815) 280-6767
Career Services	(815) 280-2756
Chef's Table Dining	(815) 280-2343
Child Care Center	(815) 280-2280
City Center Campus	(815) 727-6544
Counseling	(815) 280-2673
Campus Police	(815) 280-2234 (815) 729-9030
Division of Adult & Family Services	(815) 280-1333
Financial Aid	(815) 280-2528
Fitness Center	(815) 280-2437
Graduation	(815) 280-6631
Greenhouse	(815) 280-2400
Human Resource	(815) 280-2266
IET Registration	(815) 280-1555
Library	(815) 280-2665
Lifelong Learning	(815) 280-1555
North Campus	(815) 886-3000
Planetarium	(815) 280-6682
Records	(815) 280-6868
Registration	(815) 744-2200
Renaissance Center	(815) 280-1444
Service Center	(815) 280-6688
Theatre Box Office	(815) 280-6688
Transcripts	(815) 280-2242