Port report
Port 81
7-day honeypot probe activity targeting destination port 81. First seen 2026-05-14, most recent 2026-05-21 11:45.
Events 7d
950
Source IPs
209
Source ASNs
44
Countries
27
Top source ASNs
- AS51396Pfcloud UG (haftungsbeschrankt)200
- AS16509Amazon.com, Inc.112
- AS6939Hurricane Electric LLC72
- AS206264Amarutu Technology Ltd61
- AS396982Google LLC49
- AS328608Africa-on-Cloud-AS48
- AS135377UCLOUD INFORMATION TECHNOLOGY HK LIMITED46
- AS8075Microsoft Corporation46
- AS45102Alibaba US Technology Co., Ltd.38
- AS209630LLC Vash Kredit Bank26
Top source countries
Top source IPs hitting port 81
- 204.76.203.212125 eventsNL· AS51396 Pfcloud UG (haftungsbeschrankt)
- 176.65.139.17748 eventsDE· AS51396 Pfcloud UG (haftungsbeschrankt)
- 45.198.224.933 eventsSE
- 18.218.118.20332 eventsUS· AS16509 Amazon.com, Inc.
- 45.205.1.8032 eventsSC· AS328608 Africa-on-Cloud-AS
- 5.61.209.12625 eventsSC· AS206264 Amarutu Technology Ltd
- 16.58.56.21424 eventsUS· AS16509 Amazon.com, Inc.
- 18.116.101.22024 eventsUS· AS16509 Amazon.com, Inc.
- 3.129.187.3820 eventsUS· AS16509 Amazon.com, Inc.
- 151.243.11.3519 eventsAE· AS209630 LLC Vash Kredit Bank
- 84.239.49.717 eventsRO· AS44679 INVITE Systems SRL
- 45.139.122.8016 eventsNL· AS206264 Amarutu Technology Ltd
- 5.61.209.10216 eventsSC· AS206264 Amarutu Technology Ltd
- 216.180.246.10016 eventsUS· AS396982 Google LLC
- 216.180.246.12013 eventsUS· AS396982 Google LLC
- 193.32.162.10412 eventsRO· AS47890 Unmanaged Ltd
- 3.130.168.212 eventsUS· AS16509 Amazon.com, Inc.
- 45.205.1.7110 eventsSC· AS328608 Africa-on-Cloud-AS
- 103.203.57.2810 eventsCN· AS136180 Beijing Tiantexin Tech. Co., Ltd.
- 66.132.172.1988 eventsUS· AS398324 Censys, Inc.
- 199.45.154.1568 eventsUS· AS398722 Censys, Inc.
- 167.94.146.608 eventsUS· AS398705 Censys, Inc.
- 167.94.146.618 eventsUS· AS398705 Censys, Inc.
- 184.105.247.2548 eventsUS· AS6939 Hurricane Electric LLC
- 167.94.146.548 eventsUS· AS398705 Censys, Inc.
Top user-agents on port 81
- Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36 Edg/90.0.818.46182
- visionheight.com/scan Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Chrome/126.0.0.0 Safari/537.3684
- curl/7.68.075
- Go-http-client/1.161
- Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/)60
- Mozilla/5.0 (compatible; GenomeCrawlerd/1.0; +https://www.nokia.com/genomecrawler)33
- Mozilla/5.032
- Mozilla/5.0 zgrab/0.x27
- Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.24617
- curl/7.64.116
JSON: /api/port/81. CSV: /api/port/81?format=csv.