Abbreviated dialing codes (N11) were designated by the Federal Communications Commission (FCC) for communities to use to provide easy access to services.
Below is information on how the University of Michigan uses abbreviated dialing codes on the Ann Arbor, Dearborn, and Flint campus.
There is a per call charge for 411 General Directory Assistance. There are no charges for the other abbreviated numbers.
| N11 Code | Description | Ann Arbor | Flint | Dearborn |
|---|---|---|---|---|
| 211 | Community Info & Referrals; Info about local health & human service agencies | 9+211 | 9+211 | N/A |
| 311 | Non-emergency police services | N/A | N/A | 311 |
| 411 | General directory assistance | 9+411 | 9+411 | 9+411 |
| 511 | Traffic & transportation info | N/A | N/A | N/A |
| 611 | Unassigned | N/A | N/A | N/A |
| 711 | Telecommunications relay services (TRS): Operator assistance for persons with a hearing or speech disability to use a telephone via text telephone (TTY) | 9+711 | 9+711 | 9+711 |
| 811 | Underground utility safety; Help in determining location of underground lines (MISS DIG in Michigan) | 9+811 | 9+811 | 9+811 |
| 911 | Emergency; On campus 911 reaches an emergency number at the Department of Public Safety & Security (DPSS) | 911 | 911 | 911 |