Port 51821
HoneyLabs honeypots recorded 135 probes against destination port 51821 from 19 distinct source IP addresses in the last 7 days.
First observed 2026-09-14 12:56:34, most recently 2026-09-21 08:49:42 (UTC).
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 89.248.172.33 | 37 | IP Volume inc | NL |
| 80.82.77.202 | 21 | IP Volume inc | NL |
| 93.174.93.12 | 20 | IP Volume inc | NL |
| 216.180.246.176 | 16 | Google LLC | US |
| 216.180.246.123 | 13 | Google LLC | US |
| 167.94.146.52 | 8 | Censys, Inc. | US |
| 77.77.43.215 | 6 | UltraNET Ltd | BG |
| 216.180.246.175 | 2 | Google LLC | US |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS202425 | IP Volume inc | 78 | 3 |
| AS396982 | Google LLC | 33 | 4 |
| AS398705 | Censys, Inc. | 8 | 1 |
| AS39184 | UltraNET Ltd | 6 | 1 |
| AS213412 | ONYPHE SAS | 6 | 6 |
| AS209334 | Modat B.V. | 4 | 4 |
Where it comes from
| Country | Probes |
|---|---|
| The Netherlands | 78 |
| United States | 41 |
| Bulgaria | 6 |
| France | 6 |
| Canada | 4 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Python/3.10 aiohttp/3.8.4 | 78 |
| Mozilla/5.0 (compatible; GenomeCrawlerd/1.0; +https://www.nokia.com/genomecrawler) | 31 |
| Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/) | 6 |
| Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 | 6 |
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