When dialing these numbers from off campus you must dial 1+815+7-digit number.
| Emergency | 911 |
| Bookstore | 753-1081 |
| Bursar | 753-1885 |
| Bursar Account Information | 753-1878 |
| Campus Activities Board | 753-1580 |
| Center for Access-Ability Resources | 753-1303 |
| Center for Access-Ability Resources TTY | 753-3000 |
| Copy Card | 753-1662 |
| DeKalb County Road Conditions | (815) 748-6406 |
| Directory Assistance - LUCY (Voice Activated Directory Assistance) available 24/7/365 NIU Information Center |
753-4000 753-1000 |
| Health Services | 753-1311 |
| Holmes Student Center | 753-8560 |
| Housing and Dining - Work Request Office |
753-4948 |
| Information Technology Services (ITS) Helpdesk | 753-8100 |
| Library Hours | 753-1670 |
| Library Information | 753-1995 |
| Password Reset | 753-8100 |
| LUCY (Voice Activated Directory Assistance) available 24/7/365 |
753-4000 |
| NIU Information Center (Directory Assistance and NIU Information Center) | 753-1000 |
| NIU Information Center TTY | 753-2000 |
| NIU Modem Pool | 753-6600 |
| NIU Police (Non-Emergency) | 753-1212 |
| NIU Weather Status Hotline (to see if the University is closed) Toll-Free TTY Toll-Free TTY |
752-OPEN (6736) (888) 464-8673 753-9703 (888) 648-9847 |
| NIU Weather Line (weather report) | 753-1623 |
| OneCard | 753-9569 |
| Registration and Records | 753-0681 |
| Residence Hall Association | 753-1078 |
| Residential Technology (ResTech) Helpdesk |
753-6267 |
| Residential Administration Office, Housing and Dining |
753-1525 |
| Student Financial Aid | 753-1395 |
| Student Voicemail HelpLine | 753-7505 |
| Telephone Help Line (How to Use the Phone) |
753-7500 |
| Time and Temperature | (815)758-8646 |
| TRACS | 753-8900 |
| Douglas | 753-1789 |
| Grant C/D (north end of Grant) | 753-1994 |
| Grant A/B (south end of Grant) | 753-1784 |
| Lincoln | 753-1205 |
| Neptune East and West | 753-1725 |
| Neptune North | 753-1726 |
| Northern View Community | 752-VIEW (8439) |
| Stevenson C/D (north end of Stevenson) | 753-0515 |
| Stevenson A/B (south end of Stevenson) |
753-0371 |
| Blackboard | webcourses.niu.edu |
| Campus Map | www.webmap.niu.edu |
| Information Technology Services | www.its.niu.edu |
| ITS Helpdesk | helpdesk.niu.edu |
| Northern Illinois University | www.niu.edu |
| Password Reset - available 24/7/365 | password.niu.edu |
| Residential Technology (ResTech) | restech.niu.edu |
| Housing and Dining | www.housing-dining.niu.edu |
| Student Portal | www.student.niu.edu |
| Virtual Campus Tour | www.niu.edu/virtualtour |
| Webconnect | https://webconnect.niu.edu |