| District of Michigan area codes: 734 | |
|---|---|
| Country | United States |
| State/Province | Michigan |
| Major City | Detroit |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 734-360 | Wayne | Flat Rock, MI | Usa Mobility Wireless |
| 734-362 | Wayne | Trenton, MI | Ameritech Michigan |
| 734-363 | Wayne | Trenton, MI | Sprint Spectrum L.p. |
| 734-364 | Monroe | Maybee, MI | Level 3 Communications |
| 734-365 | Wayne | Trenton, MI | Teleport Communications America |
| 734-367 | Wayne | Livonia, MI | Ameritech Michigan |
| 734-368 | Washtenaw | Ann Arbor, MI | Sprint Spectrum L.p. |
| 734-369 | Washtenaw | Ann Arbor, MI | Comcast Phone Of Michigan |
| 734-370 | Monroe | Lambertville, MI | Telnet Worldwide |
| 734-372 | Washtenaw | Ann Arbor, MI | Telnet Worldwide |
| 734-374 | Wayne | Taylor, MI | Ameritech Michigan |
| 734-375 | Livingston | Gregory, MI | Teleport Communications America |
| 734-376 | Monroe | Ida, MI | Telnet Worldwide |
| 734-377 | Wayne | Wayne, MI | Sprint Spectrum L.p. |
| 734-378 | Washtenaw | Dexter, MI | Xo Communications Services |
| 734-379 | Wayne | Rockwood, MI | Ameritech Michigan |
| 734-380 | Wayne | Romulus, MI | Usa Mobility Wireless |
| 734-381 | Monroe | Maybee, MI | Cellco Partnership DBA Verizon Wireless |
| 734-382 | Livingston | Gregory, MI | Phone Michigan |
| 734-383 | Washtenaw | Ypsilanti, MI | Omnipoint Communications Midwest Operations LLC |
There are 608 prefixes, In the code area, the major cities are Ann Arbor, MI;Canton, MI;Garden City, MI;Livonia, . The major city is Detroit.