Who called you?
(603) 600-9724
(603) 600-9724 is a landline / voip number from Manchester, NH on a prefix assigned to Commio, LLC. Consumers have filed 2 complaints about it: 1 with the FTC's Do Not Call Registry and 1 with the FCC, most recently on 2026-09-02.
Reported this month — 1 FTC complaint in the last 30 days, most recently 15 days ago, for debt-relief robocalls.
Who called me from (603) 600-9724?
Carrier & location
- Type
- Landline / VoIP
- Assigned carrier
- Commio, LLC
- Rate center
- Manchester, NH
- Prefix 603-600
- assigned 2020-05-29, pooled block
- Area code
- 603 — New Hampshire
- Time zone
- E
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
- 12026-09-02
- FCC complaints
- 12026-08-26
- Community reports
- 0
FTC Do Not Call complaints (unverified consumer reports); FCC Consumer Complaint Data, public record. Complaints run from 2026-08-26 to 2026-09-02.
Did this number call you? What was it?
What (603) 600-9724 was reported for
1 consumer reported this number to the FTC's National Do Not Call Registry on 2026-09-02. Source: FTC Do Not Call complaints (unverified consumer reports).
Reported this month — 1 FTC complaint in the last 30 days, most recently 15 days ago, for debt-relief robocalls.
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 reduction1 (100%)
1 of 1 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.
- TX1 (100%)
Recent FTC reports naming (603) 600-9724
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 |
|---|---|---|---|---|
| 2026-09-02 | 2026-09-01 03:00 | Debt reduction | Yes | TX |
Reported in the last 7 days in area code 603 (New Hampshire)
Other 603 numbers consumers reported to the FTC this week — useful when a campaign is rotating through an area code.
- (603) 450-40104 this week · Dropped call / no message
- (603) 316-34653 this week · Impostor (government, business, family)
- (603) 570-44743 this week · Dropped call / no message
- (603) 377-30682 this week · No subject given
- (603) 518-61512 this week · Dropped call / no message
- (603) 600-31302 this week · Medical & prescriptions
- (603) 259-11992 this week · Impostor (government, business, family)
- (603) 506-49832 this week · Dropped call / no message
- (603) 514-60482 this week · No subject given
- (603) 696-68992 this week · No subject given
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.
Complaint pattern for (603) 600-9724
What the 1 public FCC complaint naming this number show about when the calls happened, where they landed and how they were placed. Derived from the FCC Consumer Complaint Data Center, a public record.
All 1 complaints were filed on the same day (2026-08-26) — a single burst rather than sustained calling.
Where the complaints came from
- NJ1
Every complaint came from a single state (NJ), which is more consistent with a local or regional caller than a national campaign.
How the calls were placed
- Text Message
- 1
- Wireless (cell phone)
- 1
Text Message: An SMS rather than a voice call.
Prefix and area context
30 other numbers on the (603) 600 block have complaints too — 33 across the block in total. None of them overlap in time with this number, so the block activity looks like separate episodes rather than one campaign.
Within area code 603 (New Hampshire), this is the 215th most-complained-about number of the 2,230 that have any complaint on record.
Source: FCC Consumer Complaint Data Center. Complaints are unverified consumer submissions: they record what someone reported, not a finding against the caller. Numbers can be spoofed, so a complaint may describe a call that only displayed this number.
FCC complaint log for (603) 600-9724
The most recent unwanted-call complaints US consumers filed with the FCC naming this number — type of issue, contact method, and the state the complaint came from. Public record, imported nightly.
| Date | Call type | Method | State |
|---|---|---|---|
| 2026-08-26 | Text Message | Wireless (cell phone/other mobile device | NJ |
Is (603) 600-9724 a scam? Community reports
No community reports for (603) 600-9724 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 (603) 600
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 (603) 600-9724
Who called me from (603) 600-9724?
(603) 600-9724 is a landline / voip number on a prefix assigned to Commio, LLC, based in Manchester, NH. Consumers have filed 2 complaints about it — 1 with the FTC's Do Not Call Registry and 1 with the FCC, most often describing debt-relief calls.
Is (603) 600-9724 a scam or robocall?
1 consumer reported (603) 600-9724 to the FTC, and 100% of those who answered the question said it was a recorded message or robocall. The most common subject was debt-relief. 1 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 (603) 600-9724 back?
Reports about this number are current — the most recent FTC complaint was filed 2026-09-02 — 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.