Network Port

Port 17

Custom / ephemeral port

Total Hosts

456,523

last 90 d

Countries

distinct

Top Software

—

from banners

CVE Hits

—

NVD feed pending

Service Detail

Port

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

Country	IPs
US	111,387
CN	30,526
KR	20,050
SG	10,359
FR	10,004
TW	7,507
BR	7,394
AU	5,494
TR	4,800
IR	4,569
IL	3,542
HK	2,044

Top ASNs

ASN	Name	IPs
AS396982	Google Cloud	61,126
AS37963	Alibaba (China)	22,993
AS9488	—	11,574
AS13335	Cloudflare	6,977
AS1659	Taiwan Academic Network(TANet)	6,765
AS4230	Claro	6,221
AS7472	—	6,143
AS98	—	5,884
AS40509	—	5,698
AS237	Merit Network	5,532
AS1715	—	5,511
AS9509	—	4,628

Recently Seen on Port 17

Hosts most recently observed with this port open in our scan sweep.

103.120.88.115 211.154.24.135 105.174.15.74 43.226.34.38 34.96.123.129 120.25.11.113 125.64.43.247 47.110.63.204 105.169.100.55 166.104.202.248 105.174.10.223 194.187.115.230 147.47.118.136 137.132.213.243 111.206.135.206 8.135.234.23 120.25.184.83 163.18.122.175 47.103.238.66 67.156.169.226

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.