For a full list of ports visit: www.iana.org/assignments/port-numbers.
Well-known ports are 0 to 1024.
|
Port Name / Protocol |
Service/Function provided on that port |
|---|---|
|
7/tcp |
Echo |
|
7/udp |
Echo |
|
ftp-data—20/tcp |
File Transfer |
|
ftp-data—20/udp |
File Transfer |
|
ftp-data—20/sctp |
FTP |
|
ftp—21/tcp |
File Transfer [Control] |
|
ftp—21/udp |
File Transfer [Control] |
|
ftp—21/sctp |
FTP |
|
ssh—22/tcp |
SSH Remote Login Protocol |
|
ssh—22/udp |
SSH Remote Login Protocol |
|
ssh—22/sctp |
SSH |
|
telnet—23/tcp |
Telnet |
|
telnet—23/udp |
Telnet |
|
24/tcp |
any private mail system |
|
24/udp |
any private mail system |
|
25/tcp |
Simple Mail Transfer |
|
25/udp |
Simple Mail Transfer |
|
35/tcp |
any private printer server |
|
35/udp |
any private printer server |
|
38/tcp |
Route Access Protocol |
|
38/udp |
Route Access Protocol |
|
39/tcp |
Resource Location Protocol |
|
39/udp |
Resource Location Protocol |
|
43/tcp |
Who Is |
|
43/udp |
Who Is |
|
50/tcp |
Remote Mail Checking Protocol |
|
50/udp |
Remote Mail Checking Protocol |
|
53/tcp |
Domain Name Server |
|
53/udp |
Domain Name Server |
|
57/tcp |
any private terminal access |
|
57/udp |
any private terminal access |
|
79/tcp |
Finger |
|
79/udp |
Finger |
|
http—80/tcp |
World Wide Web HTTP |
|
http—80/udp |
World Wide Web HTTP |
|
www—80/tcp |
World Wide Web HTTP |
|
www—80/udp |
World Wide Web HTTP |
|
www-http—80/tcp |
World Wide Web HTTP |
|
www-http—80/udp |
World Wide Web HTTP |
|
80/sctp |
HTTP |
|
100/tcp |
[unauthorized use] |
|
101/tcp |
NIC Host Name Server |
|
101/udp |
NIC Host Name Server |
|
107/tcp |
Remote Telnet Service |
|
107/udp |
Remote Telnet Service |
|
115/tcp |
Simple File Transfer Protocol |
|
115/udp |
Simple File Transfer Protocol |
|
118/tcp |
SQL Services |
|
118/udp |
SQL Services |
|
130/tcp |
cisco FNATIVE |
|
130/udp |
cisco FNATIVE |
|
131/tcp |
cisco TNATIVE |
|
131/udp |
cisco TNATIVE |
|
132/tcp |
cisco SYSMAINT |
|
132/udp |
cisco SYSMAINT |
|
135/tcp |
DCE endpoint resolution |
|
135/udp |
DCE endpoint resolution |
|
137/tcp |
NETBIOS Name Service |
|
137/udp |
NETBIOS Name Service |
|
138/tcp |
NETBIOS Datagram Service |
|
138/udp |
NETBIOS Datagram Service |
|
139/tcp |
NETBIOS Session Service |
|
139/udp |
NETBIOS Session Service |
|
143/tcp |
Internet Message Access Protocol |
|
143/udp |
Internet Message Access Protocol |
|
152/tcp |
Background File Transfer Program |
|
152/udp |
Background File Transfer Program |
|
161/tcp |
SNMP |
|
161/udp |
SNMP |
|
162/tcp |
SNMPTRAP |
|
162/udp |
SNMPTRAP |
|
163/tcp |
CMIP/TCP Manager |
|
163/udp |
CMIP/TCP Manager |
|
164/tcp |
CMIP/TCP Agent |
|
164/udp |
CMIP/TCP Agent |
|
167/tcp |
NAMP |
|
167/udp |
NAMP |
|
179/tcp |
Border Gateway Protocol |
|
179/udp |
Border Gateway Protocol |
|
179/sctp |
BGP |
|
201-206 (tcp/upd) |
AppleTalk (various protocols) |
|
209/tcp |
The Quick Mail Transfer Protocol |
|
209/udp |
The Quick Mail Transfer Protocol |
|
389/tcp |
Lightweight Directory Access Protocol |
|
389/udp |
Lightweight Directory Access Protocol |
|
400/tcp |
Oracle Secure Backup |
|
400/udp |
Oracle Secure Backup |
|
401/tcp |
Uninterruptible Power Supply |
|
401/udp |
Uninterruptible Power Supply |
|
636/tcp |
ldap protocol over TLS/SSL (was sldap) |
|
636/udp |
ldap protocol over TLS/SSL (was sldap) |
|
992/tcp |
telnet protocol over TLS/SSL |
|
992/udp |
telnet protocol over TLS/SSL |
|
993/tcp |
imap4—protocol over TLS/SSL |
|
993/udp |
imap4—protocol over TLS/SSL |
|
994/tcp |
irc protocol over TLS/SSL |
|
994/udp |
irc protocol over TLS/SSL |
|
995/tcp |
pop3 protocol over TLS/SSL (was spop3) |
|
995/udp |
pop3 protocol over TLS/SSL (was spop3) |
Note
The Registered Ports are those from 1024 to 49151.
Here are some ports you may encounter
|
1119/tcp |
Battle.net Chat/Game Protocol |
|
1119/udp |
Battle.net Chat/Game Protocol |
|
1120/tcp |
Battle.net File Transfer Protocol |
|
1120/udp |
Battle.net File Transfer Protocol |
|
1181/tcp |
3Com Net Managements |
|
1181/udp |
3Com Net Management |
|
1433/tcp |
Microsoft-SQL-Server |
|
1433/udp |
Microsoft-SQL-Server |
|
1434/tcp |
Microsoft-SQL-Monitor |
|
1434/udp |
Microsoft-SQL-Monitor |
|
1512/tcp |
Microsoft's Windows Internet Name Service |
|
1512/udp |
Microsoft's Windows Internet Name Service |
|
1993/tcp |
Cisco SNMP TCP port |
|
1993/udp |
Cisco SNMP TCP port |
|
2160/tcp |
APC 2160 |
|
2160/udp |
APC 2160 |
|
2161/tcp |
APC 2161 |
|
2161/udp |
APC 2161 |
|
2260/tcp |
APC 2260 |
|
2260/udp |
APC 2260 |
|
2273/tcp |
MySQL Instance Manager |
|
2273/udp |
MySQL Instance Manager |
|
3306/tcp |
MySQL |
|
3306/udp |
MySQL |
|
3418/tcp |
Remote nmap |
|
3418/udp |
Remote nmap |
|
3506/tcp |
APC 3506 |
|
3506/udp |
APC 3506 |
|
3724/tcp |
World of Warcraft |
|
3724/udp |
World of Warcraft |
|
3847/tcp |
MS Firewall Control |
|
3847/udp |
MS Firewall Control |
|
3928/tcp |
PXE NetBoot Manager |
|
3928/udp |
PXE NetBoot Manager |
|
7738/tcp |
HP Enterprise Discovery Agent |
|
7738/udp |