There are 2 phone numbers within prefix 313-721 that have resulted in reports by users.
The location of calls from 313-721 is Detroit Zone 6, Michigan, USA. Most numbers in this area code are in US Eastern time, where the time is currently 1:47:27 PM on June 12, 2026. The telco provider for 313-721 is Omnipoint Communications Midwest Operations, Llc.
Choose a phone number from the list below to browse user reports for 313-721. You can also use the search box above to search for user reports about any phone number, or to file a report about any phone number.
| Phone Number |
|---|
| 313-721-5143 |
| 313-721-7193 |