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Port 19999

HoneyLabs honeypots recorded 256 probes against destination port 19999 from 68 distinct source IP addresses in the last 7 days.

First observed 2026-11-01 21:48, most recently 2026-11-08 15:28 (UTC).

What the sensors show

The sources sat in 17 networks across 14 countries. No single address sent more than 4% of them. The largest source network was AS398324 (Censys, Inc.), with 41% of the probes from 14 addresses. 19 of the 25 busiest addresses are recognised research scanners.

Most active source addresses

Source IPProbesNetworkCountry
167.94.146.499Censys, Inc.US
66.132.172.1999Censys, Inc.US
66.132.159.899Censys, Inc.US
66.132.186.1619Censys, Inc.US
165.154.100.2529UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDPH
167.94.146.639Censys, Inc.US
165.154.49.1379UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDID
167.94.146.539Censys, Inc.US

Networks it comes from

ASNOrganisationProbesSource IPs
AS398324Censys, Inc.10514
AS398705Censys, Inc.546
AS135377UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED364
AS396982Google LLC1818
AS45102Alibaba (US) Technology Co., Ltd.127
AS208137Feo Prest SRL91

Where it comes from

CountryProbes
United States171
Philippines18
United Arab Emirates12
United Kingdom9
Indonesia9
Iran9

Client strings seen on this port

User agentProbes
Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/)100
Hello from Palo Alto Networks, find out more about our scans in https://docs-cortex.paloaltonetworks.com/r/1/Cortex-Xpanse/Scanning-activity17
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/120.0.0.016
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.08
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_0) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.114

Port report

Port report

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