Protocols and their Port Number

Network Ports

Not all ports are included here, just the most common ones:

Keyword	Number	Protocol(s)	Description
tcpmux	1	TCP, UDP	TCP Port Service Multiplexer
echo	7	TCP, UDP	Echo
discard	9	TCP, UDP	Discard
systat	11	TCP	Active Users
daytime	13	TCP, UDP	Daytime (RFC 867)
qotd	17	TCP	Quote of the Day
msp	18	TCP, UDP	message send protocol
chargen	19	TCP, UDP	Character Generator
ftp-data	20	TCP, UDP	File transfer default data
ftp	21	TCP, UDP	File transfer control
ssh	22	TCP, UDP	Remote login protocol
telnet	23	TCP, UDP	Telnet
smtp	25	TCP, UDP	Simple Mail Transfer
time	37	TCP, UDP	Time
rlp	39	TCP, UDP	Resource location protocol
nameserver	42	TCP, UDP	Host name server
whois	43	TCP, UDP	Who is
re-mail-ck	50	TCP, UDP	Remote mail checking protocol
domain	53	TCP, UDP	Domain name server
bootps	67	TCP, UDP	Bootstrap protocol server
bootpc	68	TCP, UDP	Bootstrap protocol client
tftp	69	TCP, UDP	Trivial file transfer protocol
gopher	70	TCP, UDP	Gopher
finger	79	TCP, UDP	Finger
www	80	TCP, UDP	World wide web or HTTP
kerberos	88	TCP, UDP	Kerberos
supdup	95	TCP, UDP	SUPDUP
hostname	101	TCP, UDP	NIC Host Name Server
iso-tsap	102	TCP, UDP	ISO-TSAP Class 0
csnet-ns	105	TCP, UDP	CCSO name server protocol
rtelnet	107	TCP, UDP	Remote Telnet Service
pop-2	109	TCP, UDP	Post Office Protocol - Version 2
pop-3	110	TCP, UDP	Post Office Protocol - Version 3
sunrps	111	TCP, UDP	SUN Remote Procedure Call
auth	113	TCP, UDP	Authentication Service
sftp	115	TCP, UDP	Simple File Transfer Protocol
uucp-path	117	TCP, UDP	UUCP Path Service
nntp	119	TCP, UDP	Network News Transfer Protocol
nyp	123	TCP, UDP	Network Time Protocol
netbios-ne	137	TCP, UDP	NETBIOS Name Service
netbios-dgram	138	TCP, UDP	NETBIOS Datagram Service
netbios-ssn	139	TCP, UDP	NETBIOS Session Service
imap	143	TCP, UDP	Internet Message Access Protocol
snmp	161	TCP, UDP	SNMP
snmp-trap	162	TCP, UDP	SNMPTRAP
cmip-man	163	TCP, UDP	CMIP/TCP Manager
cmip-agent	164	TCP, UDP	CMIP/TCP Agent
xdmcp	177	TCP, UDP	X Display Manager Control Protocol
nextstep	178	TCP, UDP	NextStep Window Server
bgp	179	TCP, UDP	Border Gateway Protocol
prospero	191	TCP, UDP	Prospero Directory Service
irc	194	TCP, UDP	Internet Relay Chat Protocol
smux	199	TCP, UDP	SMUX