Port 5903
HoneyLabs honeypots recorded 213 probes against destination port 5903 from 66 distinct source IP addresses in the last 7 days.
First observed 2026-08-29 07:34:20, most recently 2026-09-05 03:27:47 (UTC).
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 199.45.155.94 | 16 | Censys, Inc. | US |
| 167.94.146.50 | 8 | Censys, Inc. | US |
| 66.132.224.225 | 8 | Censys, Inc. | US |
| 167.94.146.53 | 8 | Censys, Inc. | US |
| 66.132.172.204 | 8 | Censys, Inc. | US |
| 66.132.172.195 | 8 | Censys, Inc. | US |
| 199.45.155.91 | 8 | Censys, Inc. | US |
| 66.132.186.197 | 8 | Censys, Inc. | US |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS398324 | Censys, Inc. | 89 | 12 |
| AS398705 | Censys, Inc. | 38 | 5 |
| AS8075 | Microsoft Corporation | 24 | 24 |
| AS398722 | Censys, Inc. | 24 | 2 |
| AS213412 | ONYPHE SAS | 8 | 8 |
| AS135377 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | 7 | 1 |
Where it comes from
| Country | Probes |
|---|---|
| United States | 187 |
| United Kingdom | 7 |
| The Netherlands | 5 |
| Canada | 3 |
| China | 3 |
| Singapore | 3 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/) | 111 |
| Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 | 8 |
| Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0 | 4 |
| Mozilla/5.0 zgrab/0.x | 2 |
| curl/7.61.1 | 2 |
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