Feed matches
No feed matches recorded
104.20.3.231
IPv4AS13335 · CLOUDFLARENET - Cloudflare, Inc., US · 104.20.0.0/20 · US registry
Passive DNS
1 observed relationship
- uclh.nhs.uk → 104.20.3.231 · Oct 1, 2026
Network
AS13335 · 104.20.0.0/20
Exposure
Snapshot pending
Popularity
Listed in top1m.org
Popularity is neutral context, not threat evidence.
Observed relationships and popularity do not establish maliciousness.
Public feed matches
No public feed evidence matches this value.
Passive DNS relationships
2 observations
Observed relationships do not establish maliciousness.
| Hostname | IP | Last seen | Hits | Provenance |
|---|---|---|---|---|
| uclh.nhs.uk | 104.20.3.231 | Oct 2026First seen: Oct 2026 | 2 | CTIDAO DNS |
Network ownership
BGP origin and registry data from Team Cymru.
Origin ASN
AS13335
BGP prefix
104.20.0.0/20
Registry country
US
CLOUDFLARENET - Cloudflare, Inc., US
Registry country is RIR assignment data, not IP geolocation.
Checked 10/11/2026, 10:36:59 PM
Popularity
Daily link and hosting prominence from top1m.org; not a security verdict or traffic estimate.
ipv4 · 104.20.3.231
#563,378
Internet exposure
Current scanner state. Times mean last observed open, not open now.
Exposure data is being refreshed.
Public preview is limited to five services and excludes banners. Account research on this IP entity includes every cached service, exact timestamps, banners, and enrichment summaries.
Account research
Take this investigation further
1 public pDNS relationships are available. Account research adds exact timing, focused pivots, and matching paid-feed intelligence.