Network Port
Port 646
Custom / ephemeral port
Total Hosts
347,535
last 90 d
Countries
12
distinct
Top Software
—
from banners
CVE Hits
—
NVD feed pending
Service Detail
Port
646
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 | 38,904 |
| AS37963 | Alibaba (China) | 11,743 |
| AS4134 | China Telecom | 6,175 |
| AS13335 | Cloudflare | 3,803 |
| AS9488 | — | 3,765 |
| AS4230 | Claro | 3,592 |
| AS1715 | — | 3,533 |
| AS40509 | — | 3,449 |
| AS197207 | Mobile Communication Company of Iran | 3,280 |
| AS7472 | — | 3,043 |
| AS20214 | Comcast - Miami/Pompano | 3,013 |
| AS98 | — | 2,928 |
Recently Seen on Port 646
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.