Numbers starting with 313-221 in Detroit, MI
This page collects user-reported phone numbers starting with 313-221, a prefix associated with Detroit, MI and listed under AMERITECH MICHIGAN.
Reported numbers
2
Reports in last 7 days
3
Reports in last 30 days
3
Last activity
Sep 29, 2026
Location
Detroit, MI
Number type
Landline
What stands out about this prefix
This prefix currently has 2 reported numbers on who-called.us. 3 reports were added in the last 7 days and 3 in the last 30 days.
In the deduplicated comment sample, the most frequent label is survey; other labels include unknown.
The reference data for this prefix points to Detroit, MI. In the available metadata, this range is labeled as landline. The listed carrier for this prefix is AMERITECH MICHIGAN. Because this prefix belongs to area code 313, it can also be compared with broader reporting patterns across that area code.
How this prefix is being reported
These categories come from classified user reports tied to numbers starting with 313-221. They help show whether reports cluster around one kind of call or are spread across multiple patterns.
Type
Reports
Share
Survey
1
50%
Unknown
1
50%
Recent comment examples
The comments below are recent examples from reports tied to numbers starting with 313-221. They add real wording and context that category labels alone cannot show.
Recently reported numbers
The list below shows recently active numbers tied to this prefix.
1-313-221-5749
told them to take me off the list but got another call right away from another 313 number
1-313-221-5815
I would receive this phone number 3132215815 on my landline at home for the past month. They are calling mostly during the day time. The caller ID does not list who is calling other than the phone number. The caller woul…