Network Port
SMTP
Port 25
Well-known service: SMTP
Total Hosts
2,086,125
last 90 d
Countries
12
distinct
Top Software
—
from banners
CVE Hits
—
NVD feed pending
Service Detail
Port
25
Protocol
TCP / UDP
Service
SMTP
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 | 41,511 |
| AS4782 | Chunghwa Telecom Co. AS4782 | 24,330 |
| AS16276 | OVHcloud | 15,628 |
| AS37963 | Alibaba (China) | 10,891 |
| AS24940 | Hetzner Online | 10,836 |
| AS12824 | home.pl S.A. | 9,557 |
| AS19551 | Thales/Imperva | 8,627 |
| AS26496 | GoDaddy | 7,704 |
| AS46606 | Endurance International Group, Inc | 6,557 |
| AS197207 | Mobile Communication Company of Iran | 5,371 |
| AS2514 | NTT PC Communications (InfoSphere) | 5,221 |
| AS14061 | DigitalOcean | 4,485 |
Recently Seen on Port 25
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.