Who called you?
(331) 888-1940
(331) 888-1940 is a landline / voip number from Warrenville, IL on a prefix assigned to Peerless Network. Consumers have filed 259 complaints about it: 259 with the FTC's Do Not Call Registry, most recently on 2026-10-20.
Being reported right now — 259 FTC complaints in the last 30 days, 13 this week, mostly for debt-relief robocalls.
Who called me from (331) 888-1940?
Carrier & location
- Type
- Landline / VoIP
- Assigned carrier
- Peerless Network
- Rate center
- Warrenville, IL
- Prefix 331-888
- assigned 2010-09-24, pooled block
- Area code
- 331 — Illinois
- 331 covers
- Aurora, Naperville and Downers Grove
- Local time there
- —Central
This prefix is assigned to a wireline or VoIP operator. VoIP lines are cheap to obtain in bulk, which makes them a common vehicle for spam and scam calling campaigns. Carrier assignment shows who the prefix was allocated to; numbers can be ported, and caller ID can be spoofed.
Complaint history
- FTC Do Not Call reports
- 2592026-10-09 → 2026-10-20
- Community reports
- 0
FTC Do Not Call complaints (unverified consumer reports). Complaints run from 2026-10-09 to 2026-10-20.
Did this number call you? What was it?
What (331) 888-1940 was reported for
259 consumers reported this number to the FTC's National Do Not Call Registry between 2026-10-09 and 2026-10-20. Source: FTC Do Not Call complaints (unverified consumer reports).
Being reported right now — 259 FTC complaints in the last 30 days, 13 this week, mostly for debt-relief robocalls.
The heaviest single day was 2026-10-12, when 108 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 reduction164 (63%)
- Other / unspecified67 (26%)
- Impostor (government, business, family)18 (7%)
- No subject given9 (3%)
- Medical & prescriptions1 (0%)
231 of 253 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.
and 21 more states.
Most often from Aldie, VA; Los Angeles, CA; Rochester, NY; Carlsbad, CA; Sterling Heights, MI.
Reports from 29 states is the footprint of a campaign dialling nationally rather than a local business.
When the calls came in
Consumers put 42% of the reported calls in the noon – 5 pm window, and 93% on weekdays. The FTC's Telemarketing Sales Rule bars sales calls before 8 am or after 9 pm in the consumer's local time.
Recent FTC reports naming (331) 888-1940
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.
| Reported | Call time | Subject | Robocall | From |
|---|---|---|---|---|
| 2026-10-20 | 2026-10-10 11:58 | No subject given | Yes | Sunrise, FL |
| 2026-10-19 | 2026-10-09 21:34 | Debt reduction | Yes | Gloucester, VA |
| 2026-10-19 | 2026-10-12 14:26 | Debt reduction | Yes | Gloucester, VA |
| 2026-10-19 | 2026-10-12 17:50 | Debt reduction | Yes | Gloucester, VA |
| 2026-10-19 | 2026-10-09 19:07 | Debt reduction | Yes | Palatine, IL |
| 2026-10-19 | 2026-10-09 15:10 | Debt reduction | Yes | Palatine, IL |
| 2026-10-19 | 2026-10-12 16:14 | No subject given | Yes | Sunrise, FL |
| 2026-10-19 | 2026-10-12 09:47 | No subject given | Yes | Sunrise, FL |
| 2026-10-19 | 2026-10-19 00:00 | Debt reduction | Yes | CA |
| 2026-10-18 | 2026-10-12 07:48 | Debt reduction | Yes | Prescott, WI |
| 2026-10-17 | 2026-10-09 13:27 | Debt reduction | Yes | Las Vegas, NV |
| 2026-10-17 | 2026-10-12 15:04 | Debt reduction | Yes | CA |
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) 888-1940 a scam? Community reports
No community reports for (331) 888-1940 yet. If this number called you, you're likely the first — leave a report below and help the next person who searches it.
Other reported numbers starting (331) 888
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) 888-1940
Who called me from (331) 888-1940?
(331) 888-1940 is a landline / voip number on a prefix assigned to Peerless Network, based in Warrenville, IL. Consumers have filed 259 complaints about it — 259 with the FTC's Do Not Call Registry, most often describing debt-relief calls.
Is (331) 888-1940 a scam or robocall?
259 consumers reported (331) 888-1940 to the FTC, and 91% of those who answered the question said it was a recorded message or robocall. The most common subject was debt-relief. 259 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) 888-1940 back?
Reports about this number are current — the most recent FTC complaint was filed 2026-10-20 — 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.
Where was (331) 888-1940 reported?
Consumers in 29 states reported this number to the FTC, which is the geographic spread of an automated campaign dialling nationally. The FTC records the state the consumer filed from, not where the call originated — caller ID can be spoofed to display any number.
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.