Port 501
HoneyLabs honeypots recorded 256 probes against destination port 501 from 35 distinct source IP addresses in the last 7 days.
First observed 2026-08-14 19:35:31, most recently 2026-08-20 12:12:03 (UTC).
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 5.255.98.120 | 12 | The Infrastructure Group B.V. | NL |
| 167.94.146.61 | 11 | Censys, Inc. | US |
| 66.132.186.169 | 11 | Censys, Inc. | US |
| 66.132.195.45 | 11 | Censys, Inc. | US |
| 66.132.172.47 | 11 | Censys, Inc. | US |
| 66.132.172.42 | 11 | Censys, Inc. | US |
| 66.132.172.35 | 11 | Censys, Inc. | US |
| 199.45.154.47 | 11 | Censys, Inc. | US |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS398324 | Censys, Inc. | 129 | 13 |
| AS398705 | Censys, Inc. | 44 | 4 |
| AS398722 | Censys, Inc. | 43 | 4 |
| AS60404 | The Infrastructure Group B.V. | 12 | 1 |
| AS213790 | Limited Network LTD | 12 | 2 |
| AS14987 | Rethem Hosting LLC | 7 | 6 |
Where it comes from
| Country | Probes |
|---|---|
| United States | 228 |
| The Netherlands | 12 |
| Iran | 12 |
| Singapore | 4 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/) | 113 |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 | 12 |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 | 4 |
| curl/7.29.0 | 2 |
| Mozilla/5.0 zgrab/0.x | 2 |
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