Network Port
Port 2121
Custom / ephemeral port
Total Hosts
370,356
last 90 d
Countries
12
distinct
Top Software
—
from banners
CVE Hits
—
NVD feed pending
Service Detail
Port
2121
Protocol
TCP / UDP
Service
—
IANA Reserved
—
Common Risk
—
Top Software on this Port
No banners yet
banner-sweep hasn't fingerprinted a host on this port yet.
Top Countries
Top ASNs
| ASN | Name | IPs |
|---|---|---|
| AS396982 | Google Cloud | 38,153 |
| AS37963 | Alibaba (China) | 12,023 |
| AS19551 | Thales/Imperva | 8,305 |
| AS197207 | Mobile Communication Company of Iran | 5,250 |
| AS9488 | — | 4,887 |
| AS7472 | — | 4,099 |
| AS13335 | Cloudflare | 4,035 |
| AS4230 | Claro | 3,760 |
| AS98 | — | 3,642 |
| AS40509 | — | 3,390 |
| AS1715 | — | 3,198 |
| AS1659 | Taiwan Academic Network(TANet) | 3,149 |
Recently Seen on Port 2121
Hosts most recently observed with this port open in our scan sweep.
CVE Matches
No version-matched CVEs
No published CVE exactly matches a software version seen on this port. Banners often omit versions, which limits precise matching.