Network Port

Port 54321

Custom / ephemeral port

Total Hosts

445,382

last 90 d

Countries

distinct

Top Software

—

from banners

CVE Hits

—

NVD feed pending

Service Detail

Port

54321

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
KR	80,279
US	73,877
CN	16,085
SG	5,983
FR	5,780
IR	5,347
BR	4,415
TW	3,511
GB	3,063
AU	2,793
DE	2,612
IL	2,376

Top ASNs

ASN	Name	IPs
AS17858	—	63,400
AS396982	Google Cloud	34,722
AS37963	Alibaba (China)	10,855
AS19551	Thales/Imperva	8,271
AS9316	—	5,756
AS197207	Mobile Communication Company of Iran	5,239
AS3786	LG Uplus	3,969
AS9488	—	3,825
AS13335	Cloudflare	3,756
AS7472	—	3,685
AS4230	Claro	3,546
AS40509	—	3,163

Recently Seen on Port 54321

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

14.188.187.228 182.212.225.133 115.137.209.131 123.6.81.104 58.79.19.35 157.248.92.133 122.42.26.106 49.166.185.87 156.98.179.42 84.75.94.254 147.127.242.214 115.136.3.25 165.12.82.190 45.223.139.141 168.78.29.168 151.102.68.24 49.165.102.181 34.160.55.76 147.127.227.87 217.36.92.74

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.