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Registered TCP Ports List 0-1023

The following listing shows IANA registered ports, keyword, and description for TCP ports 0 to 1023.

IANA KeywordPortIANA Desciption
0Reserved
tcpmux1TCP Port Service Multiplexer
compressnet2Management Utility
compressnet3Compression Process
rje5Remote Job Entry
echo7Echo
discard9Discard
systat11Active Users
daytime13Daytime (RFC 867)
qotd17Quote of the Day
msp18Message Send Protocol
chargen19Character Generator
ftp-data20File Transfer [Default Data]
ftp21File Transfer [Control]
ssh22SSH Remote Login Protocol
telnet23Telnet
24any private mail system
smtp25Simple Mail Transfer
nsw-fe27NSW User System FE
msg-icp29MSG ICP
msg-auth31MSG Authentication
dsp33Display Support Protocol
35any private printer server
time37Time
rap38Route Access Protocol
rlp39Resource Location Protocol
graphics41Graphics
name42Host Name Server
nameserver42Host Name Server
nicname43Who Is
mpm-flags44MPM FLAGS Protocol
mpm45Message Processing Module [recv]
mpm-snd46MPM [default send]
ni-ftp47NI FTP
auditd48Digital Audit Daemon
tacacs49Login Host Protocol (TACACS)
re-mail-ck50Remote Mail Checking Protocol
la-maint51IMP Logical Address Maintenance
xns-time52XNS Time Protocol
domain53Domain Name Server
xns-ch54XNS Clearinghouse
isi-gl55ISI Graphics Language
xns-auth56XNS Authentication
57any private terminal access
xns-mail58XNS Mail
59any private file service
60Unassigned
ni-mail61NI MAIL
acas62ACA Services
whois++63whois++
covia64Communications Integrator (CI)
tacacs-ds65TACACS-Database Service
sql*net66Oracle SQL*NET
bootps67Bootstrap Protocol Server
bootpc68Bootstrap Protocol Client
tftp69Trivial File Transfer
gopher70Gopher
netrjs-171Remote Job Service
netrjs-272Remote Job Service
netrjs-373Remote Job Service
netrjs-474Remote Job Service
75any private dial out service
deos76Distributed External Object Store
77any private RJE service
vettcp78vettcp
finger79Finger
http80World Wide Web HTTP
www80World Wide Web HTTP
www-http80World Wide Web HTTP
hosts2-ns81HOSTS2 Name Server
xfer82XFER Utility
mit-ml-dev83MIT ML Device
ctf84Common Trace Facility
mit-ml-dev85MIT ML Device
mfcobol86Micro Focus Cobol
87any private terminal link
kerberos88Kerberos
su-mit-tg89SU/MIT Telnet Gateway
dnsix90DNSIX Securit Attribute Token Map
mit-dov91MIT Dover Spooler
npp92Network Printing Protocol
dcp93Device Control Protocol
objcall94Tivoli Object Dispatcher
supdup95SUPDUP
dixie96DIXIE Protocol Specification
swift-rvf97Swift Remote Virtural File Protocol
tacnews98TAC News
metagram99Metagram Relay
newacct100[unauthorized use]
hostname101NIC Host Name Server
iso-tsap102ISO-TSAP Class 0, MTA-X.400 over TCP/IP
gppitnp103Genesis Point-to-Point Trans Net
acr-nema104ACR-NEMA Digital Imag. & Comm. 300
csnet-ns105Mailbox Name Nameserver
cso105CCSO name server protocol
3com-tsmux1063COM-TSMUX
rtelnet107Remote Telnet Service
snagas108SNA Gateway Access Server
pop2109Post Office Protocol - Version 2
pop3110Post Office Protocol - Version 3
sunrpc111SUN Remote Procedure Call
mcidas112McIDAS Data Transmission Protocol
auth113Authentication Service
ident113
audionews114Audio News Multicast
sftp115Simple File Transfer Protocol
ansanotify116ANSA REX Notify
uucp-path117UUCP Path Service
sqlserv118SQL Services
nntp119Network News Transfer Protocol
cfdptkt120CFDPTKT
erpc121Encore Expedited Remote Pro.Call
smakynet122SMAKYNET
ntp123Network Time Protocol
ansatrader124ANSA REX Trader
locus-map125Locus PC-Interface Net Map Ser
nxedit126NXEdit
locus-con127Locus PC-Interface Conn Server
gss-xlicen128GSS X License Verification
pwdgen129Password Generator Protocol
cisco-fna130cisco FNATIVE
cisco-tna131cisco TNATIVE
cisco-sys132cisco SYSMAINT
statsrv133Statistics Service
ingres-net134INGRES-NET Service
epmap135DCE endpoint resolution
profile136PROFILE Naming System
netbios-ns137NETBIOS Name Service
netbios-dgm138NETBIOS Datagram Service
netbios-ssn139NETBIOS Session Service
emfis-data140EMFIS Data Service
emfis-cntl141EMFIS Control Service
bl-idm142Britton-Lee IDM
imap143Internet Message Access Protocol
uma144Universal Management Architecture
uaac145UAAC Protocol
iso-tp0146ISO-IP0
iso-ip147ISO-IP
jargon148Jargon
aed-512149AED 512 Emulation Service
sql-net150SQL-NET
hems151HEMS
bftp152Background File Transfer Program
sgmp153SGMP
netsc-prod154NETSC
netsc-dev155NETSC
sqlsrv156SQL Service
knet-cmp157KNET/VM Command/Message Protocol
pcmail-srv158PCMail Server
nss-routing159NSS-Routing
sgmp-traps160SGMP-TRAPS
snmp161SNMP
snmptrap162SNMPTRAP
cmip-man163CMIP/TCP Manager
cmip-agent164CMIP/TCP Agent
xns-courier165Xerox
s-net166Sirius Systems
namp167NAMP
rsvd168RSVD
send169SEND
print-srv170Network PostScript
multiplex171Network Innovations Multiplex
cl/1172Network Innovations CL/1
xyplex-mux173Xyplex
mailq174MAILQ
vmnet175VMNET
genrad-mux176GENRAD-MUX
xdmcp177X Display Manager Control Protocol
nextstep178NextStep Window Server
bgp179Border Gateway Protocol
ris180Intergraph
unify181Unify
audit182Unisys Audit SITP
ocbinder183OCBinder
ocserver184OCServer
remote-kis185Remote-KIS
kis186KIS Protocol
aci187Application Communication Interface
mumps188Plus Five's MUMPS
qft189Queued File Transport
gacp190Gateway Access Control Protocol
prospero191Prospero Directory Service
osu-nms192OSU Network Monitoring System
srmp193Spider Remote Monitoring Protocol
irc194Internet Relay Chat Protocol
dn6-nlm-aud195DNSIX Network Level Module Audit
dn6-smm-red196DNSIX Session Mgt Module Audit Redir
dls197Directory Location Service
dls-mon198Directory Location Service Monitor
smux199SMUX
src200IBM System Resource Controller
at-rtmp201AppleTalk Routing Maintenance
at-nbp202AppleTalk Name Binding
at-3203AppleTalk Unused
at-echo204AppleTalk Echo
at-5205AppleTalk Unused
at-zis206AppleTalk Zone Information
at-7207AppleTalk Unused
at-8208AppleTalk Unused
qmtp209The Quick Mail Transfer Protocol
z39.50210ANSI Z39.50
914c/g211Texas Instruments 914C/G Terminal
anet212ATEXSSTR
ipx213IPX
vmpwscs214VM PWSCS
softpc215Insignia Solutions
CAIlic216Computer Associates Int'l License Server
dbase217dBASE Unix
mpp218Netix Message Posting Protocol
uarps219Unisys ARPs
imap3220Interactive Mail Access Protocol v3
fln-spx221Berkeley rlogind with SPX auth
rsh-spx222Berkeley rshd with SPX auth
cdc223Certificate Distribution Center
masqdialer224masqdialer
direct242Direct
sur-meas243Survey Measurement
inbusiness244inbusiness
link245LINK
dsp3270246Display Systems Protocol
subntbcst_tftp247SUBNTBCST_TFTP
bhfhs248bhfhs
rap256RAP
set257Secure Electronic Transaction
yak-chat258Yak Winsock Personal Chat
esro-gen259Efficient Short Remote Operations
openport260Openport
nsiiops261IIOP Name Service over TLS/SSL
arcisdms262Arcisdms
hdap263HDAP
bgmp264BGMP
x-bone-ctl265X-Bone CTL
sst266SCSI on ST
td-service267Tobit David Service Layer
td-replica268Tobit David Replica
http-mgmt280http-mgmt
personal-link281Personal Link
cableport-ax282Cable Port A/X
rescap283rescap
corerjd284corerjd
fxp-1286FXP-1
k-block287K-BLOCK
novastorbakcup308Novastor Backup
entrusttime309EntrustTime
bhmds310bhmds
asip-webadmin311AppleShare IP WebAdmin
vslmp312VSLMP
magenta-logic313Magenta Logic
opalis-robot314Opalis Robot
dpsi315DPSI
decauth316decAuth
zannet317Zannet
pkix-timestamp318PKIX TimeStamp
ptp-event319PTP Event
ptp-general320PTP General
pip321PIP
rtsps322RTSPS
texar333Texar Security Port
pdap344Prospero Data Access Protocol
pawserv345Perf Analysis Workbench
zserv346Zebra server
fatserv347Fatmen Server
csi-sgwp348Cabletron Management Protocol
mftp349mftp
matip-type-a350MATIP Type A
bhoetty351bhoetty (added 5/21/97)
matip-type-b351MATIP Type B
bhoedap4352bhoedap4 (added 5/21/97)
dtag-ste-sb352DTAG (assigned long ago)
ndsauth353NDSAUTH
bh611354bh611
datex-asn355DATEX-ASN
cloanto-net-1356Cloanto Net 1
bhevent357bhevent
shrinkwrap358Shrinkwrap
nsrmp359Network Security Risk Management Protocol
scoi2odialog360scoi2odialog
semantix361Semantix
srssend362SRS Send
rsvp_tunnel363RSVP Tunnel
aurora-cmgr364Aurora CMGR
dtk365DTK
odmr366ODMR
mortgageware367MortgageWare
qbikgdp368QbikGDP
rpc2portmap369rpc2portmap
codaauth2370codaauth2
clearcase371Clearcase
ulistproc372ListProcessor
legent-1373Legent Corporation
legent-2374Legent Corporation
hassle375Hassle
nip376Amiga Envoy Network Inquiry Proto
tnETOS377NEC Corporation
dsETOS378NEC Corporation
is99c379TIA/EIA/IS-99 modem client
is99s380TIA/EIA/IS-99 modem server
hp-collector381hp performance data collector
hp-managed-node382hp performance data managed node
hp-alarm-mgr383hp performance data alarm manager
arns384A Remote Network Server System
ibm-app385IBM Application
asa386ASA Message Router Object Def.
aurp387Appletalk Update-Based Routing Pro.
unidata-ldm388Unidata LDM
ldap389Lightweight Directory Access Protocol
uis390UIS
synotics-relay391SynOptics SNMP Relay Port
synotics-broker392SynOptics Port Broker Port
meta5393Meta5
embl-ndt394EMBL Nucleic Data Transfer
netcp395NETscout Control Protocol
netware-ip396Novell Netware over IP
mptn397Multi Protocol Trans. Net.
kryptolan398Kryptolan
iso-tsap-c2399ISO Transport Class 2 Non-Control over TCP
work-sol400Workstation Solutions
ups401Uninterruptible Power Supply
genie402Genie Protocol
decap403decap
nced404nced
ncld405ncld
imsp406Interactive Mail Support Protocol
timbuktu407Timbuktu
prm-sm408Prospero Resource Manager Sys. Man.
prm-nm409Prospero Resource Manager Node Man.
decladebug410DECLadebug Remote Debug Protocol
rmt411Remote MT Protocol
synoptics-trap412Trap Convention Port
smsp413Storage Management Services Protocol
infoseek414InfoSeek
bnet415BNet
silverplatter416Silverplatter
onmux417Onmux
hyper-g418Hyper-G
ariel1419Ariel 1
smpte420SMPTE
ariel2421Ariel 2
ariel3422Ariel 3
opc-job-start423IBM Operations Planning and Control Start
opc-job-track424IBM Operations Planning and Control Track
icad-el425ICAD
smartsdp426smartsdp
svrloc427Server Location
ocs_cmu428OCS_CMU
ocs_amu429OCS_AMU
utmpsd430UTMPSD
utmpcd431UTMPCD
iasd432IASD
nnsp433NNSP
mobileip-agent434MobileIP-Agent
mobilip-mn435MobilIP-MN
dna-cml436DNA-CML
comscm437comscm
dsfgw438dsfgw
dasp439dasp Thomas Obermair
sgcp440sgcp
decvms-sysmgt441decvms-sysmgt
cvc_hostd442cvc_hostd
https443http protocol over TLS/SSL
snpp444Simple Network Paging Protocol
microsoft-ds445Microsoft-DS
ddm-rdb446DDM-RDB
ddm-dfm447DDM-RFM
ddm-ssl448DDM-SSL
as-servermap449AS Server Mapper
tserver450Computer Supported Telecomunication Applications
sfs-smp-net451Cray Network Semaphore server
sfs-config452Cray SFS config server
creativeserver453CreativeServer
contentserver454ContentServer
creativepartnr455CreativePartnr
macon-tcp456macon-tcp
scohelp457scohelp
appleqtc458apple quick time
ampr-rcmd459ampr-rcmd
skronk460skronk
datasurfsrv461DataRampSrv
datasurfsrvsec462DataRampSrvSec
alpes463alpes
kpasswd464kpasswd
urd465URL Rendesvous Directory for SSM
digital-vrc466digital-vrc
mylex-mapd467mylex-mapd
photuris468proturis
rcp469Radio Control Protocol
scx-proxy470scx-proxy
mondex471Mondex
ljk-login472ljk-login
hybrid-pop473hybrid-pop
tn-tl-w1474tn-tl-w1
tcpnethaspsrv475tcpnethaspsrv
tn-tl-fd1476tn-tl-fd1
ss7ns477ss7ns
spsc478spsc
iafserver479iafserver
iafdbase480iafdbase
ph481Ph service
bgs-nsi482bgs-nsi
ulpnet483ulpnet
integra-sme484Integra Software Management Environment
powerburst485Air Soft Power Burst
avian486avian
saft487saft Simple Asynchronous File Transfer
gss-http488gss-http
nest-protocol489nest-protocol
micom-pfs490micom-pfs
go-login491go-login
ticf-1492Transport Independent Convergence for FNA
ticf-2493Transport Independent Convergence for FNA
pov-ray494POV-Ray
intecourier495intecourier
pim-rp-disc496PIM-RP-DISC
dantz497dantz
siam498siam
iso-ill499ISO ILL Protocol
isakmp500isakmp
stmf501STMF
asa-appl-proto502asa-appl-proto
intrinsa503Intrinsa
citadel504citadel
mailbox-lm505mailbox-lm
ohimsrv506ohimsrv
crs507crs
xvttp508xvttp
snare509snare
fcp510FirstClass Protocol
passgo511PassGo
exec512remote process execution;
login513remote login a la telnet;
shell514cmd
printer515spooler
videotex516videotex
talk517"like tenex link, but across"
ntalk518
utime519unixtime
efs520extended file name server
ripng521ripng
ulp522ULP
ibm-db2523IBM-DB2
ncp524NCP
timed525timeserver
tempo526newdate
stx527Stock IXChange
custix528Customer IXChange
irc-serv529IRC-SERV
courier530rpc
conference531chat
netnews532readnews
netwall533for emergency broadcasts
mm-admin534MegaMedia Admin
iiop535iiop
opalis-rdv536opalis-rdv
nmsp537Networked Media Streaming Protocol
gdomap538gdomap
apertus-ldp539Apertus Technologies Load Determination
uucp540uucpd
uucp-rlogin541uucp-rlogin
commerce542commerce
klogin543
kshell544krcmd
appleqtcsrvr545appleqtcsrvr
dhcpv6-client546DHCPv6 Client
dhcpv6-server547DHCPv6 Server
afpovertcp548AFP over TCP
idfp549IDFP
new-rwho550new-who
cybercash551cybercash
devshr-nts552DeviceShare
pirp553pirp
rtsp554Real Time Stream Control Protocol
dsf555
remotefs556rfs server
openvms-sysipc557openvms-sysipc
sdnskmp558SDNSKMP
teedtap559TEEDTAP
rmonitor560rmonitord
monitor561
chshell562chcmd
nntps563nntp protocol over TLS/SSL (was snntp)
9pfs564plan 9 file service
whoami565whoami
streettalk566streettalk
banyan-rpc567banyan-rpc
ms-shuttle568microsoft shuttle
ms-rome569microsoft rome
meter570demon
meter571udemon
sonar572sonar
banyan-vip573banyan-vip
ftp-agent574FTP Software Agent System
vemmi575VEMMI
ipcd576ipcd
vnas577vnas
ipdd578ipdd
decbsrv579decbsrv
sntp-heartbeat580SNTP HEARTBEAT
bdp581Bundle Discovery Protocol
scc-security582SCC Security
philips-vc583Philips Video-Conferencing
keyserver584Key Server
imap4-ssl585IMAP4+SSL (use 993 instead)
password-chg586Password Change
submission587Submission
cal588CAL
eyelink589EyeLink
tns-cml590TNS CML
http-alt591"FileMaker, Inc. - HTTP Alternate (see Port 80)"
eudora-set592Eudora Set
http-rpc-epmap593HTTP RPC Ep Map
tpip594TPIP
cab-protocol595CAB Protocol
smsd596SMSD
ptcnameservice597PTC Name Service
sco-websrvrmg3598SCO Web Server Manager 3
acp599Aeolon Core Protocol
ipcserver600Sun IPC server
syslog-conn601Reliable Syslog Service
soap-beep605SOAP over BEEP
urm606Cray Unified Resource Manager
nqs607nqs
sift-uft608Sender-Initiated/Unsolicited File Transfer
npmp-trap609npmp-trap
npmp-local610npmp-local
npmp-gui611npmp-gui
hmmp-ind612HMMP Indication
hmmp-op613HMMP Operation
sshell614SSLshell
sco-inetmgr615Internet Configuration Manager
sco-sysmgr616SCO System Administration Server
sco-dtmgr617SCO Desktop Administration Server
dei-icda618DEI-ICDA
compaq-evm619Compaq EVM
sco-websrvrmgr620SCO WebServer Manager
escp-ip621ESCP
collaborator622Collaborator
asf-rmcp623ASF Remote Management and Control Protocol
cryptoadmin624Crypto Admin
dec_dlm625DEC DLM
asia626ASIA
passgo-tivoli627PassGo Tivoli
qmqp628QMQP
3com-amp36293Com AMP3
rda630RDA
ipp631IPP (Internet Printing Protocol)
bmpp632bmpp
servstat633Service Status update (Sterling Software)
ginad634ginad
rlzdbase635RLZ DBase
ldaps636ldap protocol over TLS/SSL (was sldap)
lanserver637lanserver
mcns-sec638mcns-sec
msdp639MSDP
entrust-sps640entrust-sps
repcmd641repcmd
esro-emsdp642ESRO-EMSDP V1.3
sanity643SANity
dwr644dwr
pssc645PSSC
ldp646LDP
dhcp-failover647DHCP Failover
rrp648Registry Registrar Protocol (RRP)
cadview-3d649Cadview-3d - streaming 3d models over the internet
obex650OBEX
ieee-mms651IEEE MMS
hello-port652HELLO_PORT
repscmd653RepCmd
aodv654AODV
tinc655TINC
spmp656SPMP
rmc657RMC
tenfold658TenFold
mac-srvr-admin660MacOS Server Admin
hap661HAP
pftp662PFTP
purenoise663PureNoise
asf-secure-rmcp664ASF Secure Remote Management and Control Protocol
sun-dr665Sun DR
doom666doom Id Software
mdqs666
disclose667campaign contribution disclosures - SDR Technologies
mecomm668MeComm
meregister669MeRegister
vacdsm-sws670VACDSM-SWS
vacdsm-app671VACDSM-APP
vpps-qua672VPPS-QUA
cimplex673CIMPLEX
acap674ACAP
dctp675DCTP
vpps-via676VPPS Via
vpp677Virtual Presence Protocol
ggf-ncp678GNU Generation Foundation NCP
mrm679MRM
entrust-aaas680entrust-aaas
entrust-aams681entrust-aams
xfr682XFR
corba-iiop683CORBA IIOP
corba-iiop-ssl684CORBA IIOP SSL
mdc-portmapper685MDC Port Mapper
hcp-wismar686Hardware Control Protocol Wismar
asipregistry687asipregistry
realm-rusd688REALM-RUSD
nmap689NMAP
vatp690VATP
msexch-routing691MS Exchange Routing
hyperwave-isp692Hyperwave-ISP
connendp693connendp
ha-cluster694ha-cluster
ieee-mms-ssl695IEEE-MMS-SSL
rushd696RUSHD
uuidgen697UUIDGEN
olsr698OLSR
accessnetwork699Access Network
elcsd704errlog copy/server daemon
agentx705AgentX
silc706SILC
borland-dsj707Borland DSJ
entrust-kmsh709Entrust Key Management Service Handler
entrust-ash710Entrust Administration Service Handler
cisco-tdp711Cisco TDP
netviewdm1729IBM NetView DM/6000 Server/Client
netviewdm2730IBM NetView DM/6000 send/tcp
netviewdm3731IBM NetView DM/6000 receive/tcp
netgw741netGW
netrcs742Network based Rev. Cont. Sys.
flexlm744Flexible License Manager
fujitsu-dev747Fujitsu Device Control
ris-cm748Russell Info Sci Calendar Manager
kerberos-adm749kerberos administration
rfile750
pump751
qrh752
rrh753
tell754send
nlogin758
con759
ns760
rxe761
quotad762
cycleserv763
omserv764
webster765
phonebook767phone
vid769
cadlock770
rtip771
cycleserv2772
submit773
rpasswd774
entomb775
wpages776
multiling-http777Multiling HTTP
wpgs780
mdbs_daemon800
device801
fcp-udp810FCP
itm-mcell-s828itm-mcell-s
pkix-3-ca-ra829PKIX-3 CA/RA
dhcp-failover2847dhcp-failover 2
rsync873rsync
iclcnet-locate886ICL coNETion locate server
iclcnet_svinfo887ICL coNETion server info
accessbuilder888AccessBuilder
cddbp888CD Database Protocol
omginitialrefs900OMG Initial Refs
smpnameres901SMPNAMERES
ideafarm-chat902IDEAFARM-CHAT
ideafarm-catch903IDEAFARM-CATCH
xact-backup911xact-backup
apex-mesh912APEX relay-relay service
apex-edge913APEX endpoint-relay service
ftps-data989"ftp protocol, data, over TLS/SSL"
ftps990"ftp protocol, control, over TLS/SSL"
nas991Netnews Administration System
telnets992telnet protocol over TLS/SSL
imaps993imap4 protocol over TLS/SSL
ircs994irc protocol over TLS/SSL
pop3s995pop3 protocol over TLS/SSL (was spop3)
vsinet996vsinet
maitrd997
busboy998
garcon999
cadlock21000
surf1010surf
1023Reserved

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