Port 21000

HoneyLabs honeypots recorded 35 probes against destination port 21000 from 16 distinct source IP addresses in the last 7 days.

First observed 2026-08-14 01:02:25, most recently 2026-08-20 14:21:36 (UTC).

Most active source addresses

Source IPProbesNetworkCountry
152.53.81.257netcup GmbHUS
128.1.132.2206UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDHK
149.102.247.2504Datacamp LimitedHR
165.154.120.2533UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDTH
5.181.86.1793Internet Solutions & Innovations LTD.UA
193.8.186.292PebbleHost LtdSG
91.231.89.1271ONYPHE SASFR
91.231.89.861ONYPHE SASFR

Networks it comes from

ASNOrganisationProbesSource IPs
AS135377UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED92
AS213412ONYPHE SAS77
AS214996netcup GmbH71
AS212238Datacamp Limited41
AS211632Internet Solutions & Innovations LTD.31
AS201002PebbleHost Ltd21

Where it comes from

CountryProbes
United States8
France7
Hong Kong6
Croatia4
Ukraine3
Thailand3

Client strings seen on this port

User agentProbes
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.07
curl/7.29.02
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.362

Port report

Port report

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