Network Port
Telnet
Port 23
Well-known service: Telnet
Total Hosts
969,337
last 90 d
Countries
12
distinct
Top Software
—
from banners
CVE Hits
—
NVD feed pending
Service Detail
Port
23
Protocol
TCP / UDP
Service
Telnet
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 | 39,082 |
| AS37963 | Alibaba (China) | 11,262 |
| AS4134 | China Telecom | 6,200 |
| AS197207 | Mobile Communication Company of Iran | 5,694 |
| AS9488 | — | 4,523 |
| AS4230 | Claro | 4,039 |
| AS13335 | Cloudflare | 4,004 |
| AS1715 | — | 3,628 |
| AS9808 | China Mobile Communications Group Co., Ltd. | 3,603 |
| AS7472 | — | 3,578 |
| AS1659 | Taiwan Academic Network(TANet) | 3,497 |
| AS40509 | — | 3,288 |
Recently Seen on Port 23
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.