Port 137 (NetBIOS)
HoneyLabs honeypots recorded 336 probes against destination port 137 (NetBIOS) from 66 distinct source IP addresses in the last 7 days.
First observed 2026-08-29 02:26:18, most recently 2026-09-05 01:34:05 (UTC).
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 80.82.77.202 | 172 | IP Volume inc | NL |
| 93.174.93.12 | 62 | IP Volume inc | NL |
| 66.132.186.200 | 8 | Censys, Inc. | US |
| 35.203.210.46 | 6 | Google LLC | GB |
| 35.203.211.124 | 6 | Google LLC | GB |
| 185.180.141.12 | 6 | Zenlayer Inc | PT |
| 162.216.149.162 | 6 | Google LLC | US |
| 162.216.149.102 | 6 | Google LLC | US |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS202425 | IP Volume inc | 238 | 4 |
| AS396982 | Google LLC | 24 | 4 |
| AS21859 | Zenlayer Inc | 16 | 8 |
| AS8075 | Microsoft Corporation | 16 | 16 |
| AS25369 | Hydra Communications Ltd | 13 | 13 |
| AS213412 | ONYPHE SAS | 8 | 8 |
Where it comes from
| Country | Probes |
|---|---|
| The Netherlands | 241 |
| United States | 48 |
| United Kingdom | 19 |
| Portugal | 16 |
| Germany | 5 |
| France | 4 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Python/3.10 aiohttp/3.8.4 | 228 |
| Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.6312.86 Safari/537.36 | 8 |
| python-httpx/0.28.1 | 8 |
| Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 | 8 |
| Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/) | 6 |
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