Who called you?
(303) 379-3454
(303) 379-3454 is a landline / voip number from Denver, CO on a prefix assigned to Teleport Communications America, 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 2026-08-07.
Reported this month — 1 FTC complaint in the last 30 days, most recently 27 days ago, for robocalls.
Who called me from (303) 379-3454?
Carrier & location
- Type
- Landline / VoIP
- Assigned carrier
- Teleport Communications America, LLC
- Rate center
- Denver, CO
- Prefix 303-379
- pooled block
- Area code
- 303 — Colorado
- Time zone
- M
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
- 12026-08-07
- FCC complaints
- 12026-08-07
- Community reports
- 0
FTC Do Not Call complaints (unverified consumer reports); FCC Consumer Complaint Data, public record.
Did this number call you? What was it?
What (303) 379-3454 was reported for
1 consumer 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 month — 1 FTC complaint in the last 30 days, most recently 27 days ago, for 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.
- Other / unspecified1 (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.
- CO1 (100%)
Most often from Longmont, CO.
Recent FTC reports naming (303) 379-3454
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 |
|---|---|---|---|---|
| 2026-08-07 | 2026-08-07 09:32 | Other / unspecified | Yes | Longmont, CO |
Reported in the last 7 days in area code 303 (Colorado)
Other 303 numbers consumers reported to the FTC this week — useful when a campaign is rotating through an area code.
- (303) 242-32548 this week · Impostor (government, business, family)
- (303) 622-17634 this week · Dropped call / no message
- (303) 255-50403 this week · Impostor (government, business, family)
- (303) 204-84432 this week · Dropped call / no message
- (303) 588-37082 this week · Warranties & protection plans
- (303) 970-13502 this week · No subject given
- (303) 220-07722 this week · No subject given
- (303) 551-96132 this week · No subject given
- (303) 500-61992 this week · Dropped call / no message
- (303) 217-82231 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 (303) 379-3454
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 (2026-08-07) — a single burst rather than sustained calling.
Where the complaints came from
- CO1
Every complaint came from a single state (CO), which is more consistent with a local or regional caller than a national campaign.
How the calls were placed
- Prerecorded Voice
- 1
- Internet (VOIP)
- 1
Prerecorded Voice: A recorded message rather than a person. Prerecorded marketing calls to a mobile require prior express written consent under the TCPA.
Internet (VOIP): Reported as arriving over a VoIP service. VoIP origination is cheap to obtain and quick to abandon, which is why high-volume campaigns favour it.
Prefix and area context
9 other numbers on the (303) 379 block have complaints too — 12 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 303 (Colorado), this is the 379th most-complained-about number of the 5,396 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 (303) 379-3454
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 |
|---|---|---|---|
| 2026-08-07 | Prerecorded Voice | Internet (VOIP) | CO |
Is (303) 379-3454 a scam? Community reports
No community reports for (303) 379-3454 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 (303) 379
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 (303) 379-3454
Who called me from (303) 379-3454?
(303) 379-3454 is a landline / voip number on a prefix assigned to Teleport Communications America, LLC, based in Denver, CO. Consumers have filed 2 complaints about it — 1 with the FTC's Do Not Call Registry and 1 with the FCC.
Is (303) 379-3454 a scam or robocall?
1 consumer reported (303) 379-3454 to the FTC, and 100% of those who answered the question said it was a recorded message or robocall. 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 (303) 379-3454 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.