WhoCalledLookupUS
US

Who called you?

(331) 220-7728

(331) 220-7728 is a wireless (mobile) number from Aurora, IL on a prefix assigned to T-Mobile USA. Consumers have filed 3 complaints about it: 3 with the FTC's Do Not Call Registry, most recently on 2026-08-07.

Reported this month — 0 FTC complaints in the last 30 days, most recently 30 days ago, for debt-relief calls.

Multiple reports

Who called me from (331) 220-7728?

Carrier & location

Type
Wireless (mobile)
Assigned carrier
T-Mobile USA
Rate center
Aurora, IL
Prefix 331-220
assigned 2011-07-12, pooled block
Area code
331 — Illinois
Time zone
C

This prefix is assigned to a wireless carrier, so the number is a mobile line. Caller ID for mobile numbers is frequently spoofed by robocallers. Carrier assignment shows who the prefix was allocated to; numbers can be ported, and caller ID can be spoofed.

Complaint history

3
Reports
3
Last 30 days
0%
Robocall
FTC Do Not Call reports
32026-08-07
Community reports
0

FTC Do Not Call complaints (unverified consumer reports).

Did this number call you? What was it?

What (331) 220-7728 was reported for

3 consumers reported this number to the FTC's National Do Not Call Registry on 2026-08-07. Source: FTC Do Not Call complaints (unverified consumer reports).

Reported this month0% said it was a robocall

Reported this month — 0 FTC complaints in the last 30 days, most recently 30 days ago, for debt-relief calls.

FTC reports
3
Last 30 days
0
Last 7 days
0
First report
2026-08-07
Last report
2026-08-07
States
1

The heaviest single day was 2026-08-07, when 3 separate consumers reported this number. Same-day clusters like that come from automated dialling rather than one person making calls.

Reported for

The subject each consumer chose when filing. “Impostor” means the caller claimed to be a government agency, a business, or a relative.

  • Debt reduction
    2 (67%)
  • No subject given
    1 (33%)

0 of 3 consumers who answered the question said the call was a recorded message or robocall. Prerecorded sales calls to a cell phone require prior express written consent under the TCPA.

Where it was reported

The state the consumer filed from — where the call landed, not where it originated.

  • AZ
    3 (100%)

Recent FTC reports naming (331) 220-7728

The most recent Do Not Call complaints, as filed: the date the consumer reported it, when they said the call happened, what it was about, and the city and state they filed from.

ReportedSubjectFrom
2026-08-07No subject givenAZ
2026-08-07Debt reductionAZ
2026-08-07Debt reductionAZ

Reported in the last 7 days in area code 331 (Illinois)

Other 331 numbers consumers reported to the FTC this week — useful when a campaign is rotating through an area code.

All reported 331 numbers →

Source: FTC Do Not Call Reported Calls data, published every weekday. These are unverified consumer reports — they record what someone said about a call, not a finding against the number's owner. Caller ID is routinely spoofed, so a report can describe a call that only displayed this number. No reporter is identified beyond city and state.

Is (331) 220-7728 a scam? Community reports

No community reports for (331) 220-7728 yet. If this number called you, you're likely the first — leave a report below and help the next person who searches it.

Got a call from (331) 220-7728? Report it

Describe the call — who they claimed to be, what they wanted. Don't include anyone's personal information.

Reports are moderated before publication. No personal info, no profanity.

Other reported numbers starting (331) 220

Robocall campaigns often rotate through a block of numbers on the same prefix — if several neighbors have complaints too, that's campaign behavior.

What to do next

Block it on Android or iPhone, turn on your carrier's free filtering, and report the call to the FCC and FTC — those complaints are the public record this page is built from.

Related

FAQs about (331) 220-7728

Who called me from (331) 220-7728?

(331) 220-7728 is a wireless (mobile) number on a prefix assigned to T-Mobile USA, based in Aurora, IL. Consumers have filed 3 complaints about it — 3 with the FTC's Do Not Call Registry, most often describing debt-relief calls.

Is (331) 220-7728 a scam or robocall?

3 consumers reported (331) 220-7728 to the FTC, and 0% of those who answered the question said it was a recorded message or robocall. The most common subject was debt-relief. 3 of the reports were filed in the last 30 days, so the campaign is current. Complaints are a strong signal, not proof — never share personal or payment information with an unsolicited caller.

Should I call (331) 220-7728 back?

Reports about this number are current — the most recent FTC complaint was filed 2026-08-07 — so calling back is not advisable. As a general rule, only return a call you were expecting: a caller with legitimate business will leave a voicemail.

WhoCalledLookup is not a consumer reporting agency (FCRA). Community reports are user opinions, not statements of fact by this site; FTC and FCC complaints are unverified consumer submissions. Own this number? Dispute a listing.