Check-Host.cc

IP Address IPv4

217.36.92.74

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Run a live full scan of 217.36.92.74

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
ASN
AS2856
BTnet (BT's UK IP Network - AS2856)
Country
GB
United Kingdom
Reverse DNS
host217-36-92-74.in-addr.btopenworld.com
PTR
Open Ports
45
Last scan

Autonomous System

ASN
AS Name
BTnet (BT's UK IP Network - AS2856)
AS Type
RIR
RIPE NCC
Allocated
1993-12-22
Allocation status
Allocated

Geolocation

Country
GB · United Kingdom
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-07-21 22:19:19

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
80 tcp http 2026-05-26 20:05:19.000
102 tcp 2026-06-17 15:30:23.000
110 tcp pop3 2026-05-26 04:38:57.000
111 tcp 2026-06-16 01:18:35.000
139 tcp netbios-ssn 2026-06-07 02:47:45.000
264 tcp 2026-06-18 05:46:15.000
311 tcp 2026-05-31 09:46:50.000
502 tcp 2026-06-23 12:11:42.000
513 tcp 2026-07-18 10:14:20.000
514 tcp syslog 2026-06-13 15:53:53.000
631 tcp ipp 2026-07-17 16:09:33.000
660 tcp 2026-07-19 13:07:24.000
700 tcp 2026-07-17 11:51:03.000
712 tcp 2026-06-22 15:49:33.000
749 tcp 2026-06-16 17:01:03.000
1099 tcp 2026-06-21 08:24:22.000
1494 tcp 2026-07-17 04:30:46.000
1755 tcp 2026-06-22 12:48:23.000
1813 tcp 2026-06-14 17:26:05.000
2121 tcp 2026-07-20 06:12:24.000
2222 tcp ssh-alt 2026-07-20 14:16:52.000
2375 tcp docker 2026-06-07 06:13:46.000
2701 tcp 2026-06-14 00:02:50.000
2967 tcp 2026-06-14 22:41:43.000
3724 tcp 2026-06-15 21:58:17.000
4848 tcp 2026-07-17 08:39:45.000
5005 tcp 2026-06-09 20:43:39.000
5432 tcp postgres 2026-05-26 22:54:12.000
5601 tcp 2026-06-21 00:54:56.000
5801 tcp 2026-07-18 20:26:47.000
5986 tcp winrm-https 2026-06-06 08:57:01.000
6000 tcp 2026-06-19 20:04:19.000
6660 tcp 2026-06-18 10:22:31.000
8222 tcp 2026-06-16 07:45:10.000
8443 tcp https-alt 2026-05-27 01:37:14.000
9051 tcp tor-control 2026-06-06 05:49:52.000
9500 tcp 2026-06-14 07:19:30.000
14443 tcp 2026-06-17 15:36:08.000
17500 tcp 2026-06-15 03:26:09.000
18091 tcp 2026-06-20 11:32:33.000
18092 tcp 2026-06-17 23:29:00.000
27017 tcp mongodb 2026-06-21 00:14:40.000
27019 tcp 2026-06-22 23:59:48.000
51820 tcp wireguard 2026-07-18 10:27:58.000
54321 tcp 2026-07-21 22:18:38.000

TLS Certificates

TLS certificate observations pending

Once our scan layer captures a TLS cert from this IP, certificate chain, JARM and JA4S fingerprints will appear here.

Tech Stack

Wappalyzer fingerprinting pending

HTTP-body analysis identifies web frameworks, CMS platforms, analytics, JS libraries and server-side languages from this host.

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-leak candidates for this IP

When this IP serves a TLS cert for a domain that fronts behind a CDN, that domain surfaces here as an origin-leak candidate with a confidence score.

Multi-Vantage Check

Reachability accrued passively from real user-triggered checks across our 65+ probe nodes. Run a live check to add fresh data.

No accumulated reachability data yet

Reachability accrues from real user-triggered checks. Trigger a Ping or HTTP check from our 65+ probe nodes to contribute the first data point.

Threat Intelligence

No threat-intel matches

This IP doesn't appear in any of the feeds we mirror (Tor exits, FireHOL Level 1-3, Spamhaus DROP/EDROP, URLhaus, OpenPhish). Absence here doesn't prove the IP is clean — it just means none of our public-feed sources flag it.

Co-Hosted Domains

No DNS-confirmed domains yet

We cross-reference body-cited domains against our DNS resolver records. Confirmations appear here once both sides have data for the same name.

External References

No external references found yet

As HTML bodies get banner-grabbed, references to external domains land here.

History

First observed
2026-05-26 04:38
Last observed
2026-07-21 22:18
Scan observations
92

The full change-log (ASN moves, cert rotations, port-state diffs) accumulates as our archives grow.