WELL KNOWN PORT NUMBERS

If you don't find what you were expecting or hoping for please provide <Comments or additions>

Italics indicates that a protocol is rare or non-existant.

0/tcp Reserved
0/udp Reserved
tcpmux 1/tcp TCP Port Service Multiplexer
compressnet 2/tcp Management Utility
compressnet 3/tcp Compression Process
rje 5/tcp Remote Job Entry
echo 7/tcp Echo
echo 7/udp Echo
discard 9/tcp Discard
discard 9/udp Discard
systat 11/tcp Active Users
daytime 13/tcp Daytime
daytime 13/udp Daytime
qotd 17/tcp Quote of the Day
qotd 17/udp Quote of the Day
rwrite 18/tcp RWP rwrite
rwrite 18/udp RWP rwrite
msp 18/tcp Message Send Protocol
msp 18/udp Message Send Protocol
chargen 19/tcp Character Generator
chargen 19/udp Character Generator
ftp-data 20/tcp File Transfer [Default Data]
ftp 21/tcp File Transfer [Control]
telnet 23/tcp Telnet
24/tcp any private mail system
24/udp any private mail system
smtp 25/tcp Simple Mail Transfer
nsw-fe 27/tcp NSW User System FE
nsw-fe 27/udp NSW User System FE
msg-icp 29/tcp MSG ICP
msg-icp 29/udp MSG ICP
msg-auth 31/tcp MSG Authentication
msg-auth 31/udp MSG Authentication
dsp 33/tcp Display Support Protocol
dsp 33/udp Display Support Protocol
35/tcp any private printer server
35/udp any private printer server
time 37/tcp Time
time 37/udp Time
rap 38/tcp Route Access Protocol
rap 38/udp Route Access Protocol
rlp 39/udp Resource Location Protocol
graphics 41/tcp Graphics
graphics 41/udp Graphics
nameserver 42/udp Host Name Server
nicname 43/tcp Who Is
mpm-flags 44/tcp MPM FLAGS Protocol
mpm 45/tcp Message Processing Module [recv]
mpm-snd 46/tcp MPM [default send]
ni-ftp 47/tcp NI FTP
ni-ftp 47/udp NI FTP
auditd 48/tcp Digital Audit Daemon
auditd 48/udp Digital Audit Daemon
login 49/tcp Login Host Protocol
re-mail-ck 50/tcp Remote Mail Checking Protocol
re-mail-ck 50/udp Remote Mail Checking Protocol
la-maint 51/udp IMP Logical Address Maintenance
xns-time 52/tcp XNS Time Protocol
xns-time 52/udp XNS Time Protocol
domain 53/tcp Domain Name Server
domain 53/udp Domain Name Server
xns-ch 54/tcp XNS Clearinghouse
xns-ch 54/udp XNS Clearinghouse
isi-gl 55/tcp ISI Graphics Language
isi-gl 55/udp ISI Graphics Language
xns-auth 56/tcp XNS Authentication
xns-auth 56/udp XNS Authentication
57/tcp any private terminal access
57/udp any private terminal access
xns-mail 58/tcp XNS Mail
xns-mail 58/udp XNS Mail
59/tcp any private file service
59/udp any private file service
60/tcp Unassigned
60/udp Unassigned
ni-mail 61/tcp NI MAIL
ni-mail 61/udp NI MAIL
acas 62/tcp ACA Services
covia 64/tcp Communications Integrator (CI)
tacacs-ds 65/tcp TACACS-Database Service
sql*net 66/tcp Oracle SQL*NET
bootps 67/udp Bootstrap Protocol Server
bootpc 68/udp Bootstrap Protocol Client
tftp 69/udp Trivial File Transfer
gopher 70/tcp Gopher
netrjs-1 71/tcp Remote Job Service
netrjs-1 71/udp Remote Job Service
netrjs-2 72/tcp Remote Job Service
netrjs-2 72/udp Remote Job Service
netrjs-3 73/tcp Remote Job Service
netrjs-3 73/udp Remote Job Service
netrjs-4 74/tcp Remote Job Service
netrjs-4 74/udp Remote Job Service
75/tcp any private dial out service
75/udp any private dial out service
deos 76/tcp Distributed External Object Store
deos 76/udp Distributed External Object Store
77/tcp any private RJE service
77/udp any private RJE service
vettcp 78/tcp vettcp
vettcp 78/udp vettcp
http 80/tcp World Wide Web HTTP
www-http 80/tcp World Wide Web HTTP
hosts2-ns 81/tcp HOSTS2 Name Server
hosts2-ns 81/udp HOSTS2 Name Server
xfer 82/tcp XFER Utility
xfer 82/udp XFER Utility
mit-ml-dev 83/tcp MIT ML Device
mit-ml-dev 83/udp MIT ML Device
ctf 84/tcp Common Trace Facility
ctf 84/udp Common Trace Facility
mit-ml-dev 85/tcp MIT ML Device
mit-ml-dev 85/udp MIT ML Device
mfcobol 86/tcp Micro Focus Cobol
87/tcp any private terminal link
87/udp any private terminal link
kerberos 88/tcp Kerberos
su-mit-tg 89/tcp SU/MIT Telnet Gateway
dnsix 90/tcp DNSIX Securit Attribute Token Map
mit-dov 91/tcp MIT Dover Spooler
npp 92/tcp Network Printing Protocol
npp 92/udp Network Printing Protocol
dcp 93/tcp Device Control Protocol
dcp 93/udp Device Control Protocol
objcall 94/tcp Tivoli Object Dispatcher
objcall 94/udp Tivoli Object Dispatcher
supdup 95/tcp SUPDUP
supdup 95/udp SUPDUP
dixie 96/tcp DIXIE Protocol Specification
swift-rvf 97/tcp Swift Remote Virtural File Protocol
swift-rvf 97/udp Swift Remote Virtural File Protocol
tacnews 98/tcp TAC News
tacnews 98/udp TAC News
metagram 99/tcp Metagram Relay
metagram 99/udp Metagram Relay
newacct 100/tcp [unauthorized use]
hostname 101/tcp NIC Host Name Server
hostname 101/udp NIC Host Name Server
iso-tsap 102/tcp ISO-TSAP Class 0
iso-tsap 102/udp ISO-TSAP Class 0
gppitnp 103/tcp Genesis Point-to-Point Trans Net
gppitnp 103/udp Genesis Point-to-Point Trans Net
acr-nema 104/tcp ACR-NEMA Digital Imag. & Comm. 300
csnet-ns 105/tcp Mailbox Name Nameserver
csnet-ns 105/udp Mailbox Name Nameserver
3com-tsmux 106/tcp 3COM-TSMUX
3com-tsmux 106/udp 3COM-TSMUX
poppassd 106/tcp Password Server
rtelnet 107/tcp Remote Telnet Service
snagas 108/tcp SNA Gateway Access Server
pop2 109/tcp Post Office Protocol - Version 2
pop3 110/tcp Post Office Protocol - Version 3
sunrpc 111/tcp SUN Remote Procedure Call
sunrpc 111/udp SUN Remote Procedure Call
mcidas 112/tcp McIDAS Data Transmission Protocol
auth 113/tcp Authentication Service
audionews 114/tcp Audio News Multicast
audionews 114/udp Audio News Multicast
sftp 115/tcp Simple File Transfer Protocol
sftp 115/udp Simple File Transfer Protocol
ansanotify 116/tcp ANSA REX Notify
ansanotify 116/udp ANSA REX Notify
uucp-path 117/tcp UUCP Path Service
sqlserv 118/tcp SQL Services
sqlserv 118/udp SQL Services
nntp 119/tcp Network News Transfer Protocol
cfdptkt 120/tcp CFDPTKT
cfdptkt 120/udp CFDPTKT
erpc 121/tcp Encore Expedited Remote Pro.Call
erpc 121/udp Encore Expedited Remote Pro.Call
smakynet 122/tcp SMAKYNET
smakynet 122/udp SMAKYNET
ntp 123/tcp Network Time Protocol
ntp 123/udp Network Time Protocol
ansatrader 124/tcp ANSA REX Trader
ansatrader 124/udp ANSA REX Trader
locus-map 125/tcp Locus PC-Interface Net Map Ser
unitary 126/tcp Unisys Unitary Login
unitary 126/udp Unisys Unitary Login
locus-con 127/tcp Locus PC-Interface Conn Server
gss-xlicen 128/tcp GSS X License Verification
gss-xlicen 128/udp GSS X License Verification
pwdgen 129/tcp Password Generator Protocol
pwdgen 129/udp Password Generator Protocol
cisco-fna 130/tcp cisco FNATIVE
cisco-fna 130/udp cisco FNATIVE
cisco-tna 131/tcp cisco TNATIVE
cisco-tna 131/udp cisco TNATIVE
cisco-sys 132/tcp cisco SYSMAINT
cisco-sys 132/udp cisco SYSMAINT
statsrv 133/tcp Statistics Service
statsrv 133/udp Statistics Service
ingres-net 134/tcp INGRES-NET Service
loc-srv 135/tcp Location Service
loc-srv 135/udp Location Service
profile 136/tcp PROFILE Naming System
netbios-ns 137/tcp NETBIOS Name Service
netbios-ns 137/udp NETBIOS Name Service
netbios-dgm 138/tcp NETBIOS Datagram Service
netbios-dgm 138/udp NETBIOS Datagram Service
netbios-ssn 139/tcp NETBIOS Session Service
netbios-ssn 139/udp NETBIOS Session Service
emfis-data 140/tcp EMFIS Data Service
emfis-data 140/udp EMFIS Data Service
emfis-cntl 141/tcp EMFIS Control Service
emfis-cntl 141/udp EMFIS Control Service
bl-idm 142/tcp Britton-Lee IDM
bl-idm 142/udp Britton-Lee IDM
imap2 143/tcp Interactive Mail Access Protocol v2
news 144/tcp NewS
news 144/udp NewS
uaac 145/tcp UAAC Protocol
uaac 145/udp UAAC Protocol
iso-tp0 146/tcp ISO-IP0
iso-tp0 146/udp ISO-IP0
iso-ip 147/tcp ISO-IP
iso-ip 147/udp ISO-IP
cronus 148/tcp CRONUS-SUPPORT
cronus 148/udp CRONUS-SUPPORT
aed-512 149/tcp AED 512 Emulation Service
aed-512 149/udp AED 512 Emulation Service
sql-net 150/tcp SQL-NET
sql-net 150/udp SQL-NET
hems 151/tcp HEMS
bftp 152/tcp Background File Transfer Program
bftp 152/udp Background File Transfer Program
sgmp 153/tcp SGMP
sgmp 153/udp SGMP
netsc-prod 154/tcp NETSC
netsc-prod 154/udp NETSC
netsc-dev 155/tcp NETSC
netsc-dev 155/udp NETSC
sqlsrv 156/tcp SQL Service
knet-cmp 157/tcp KNET/VM Command/Message Protocol
pcmail-srv 158/tcp PCMail Server
nss-routing 159/tcp NSS-Routing
nss-routing 159/udp NSS-Routing
sgmp-traps 160/tcp SGMP-TRAPS
sgmp-traps 160/udp SGMP-TRAPS
snmp 161/udp SNMP
snmptrap 162/udp SNMPTRAP
cmip-man 163/tcp CMIP/TCP Manager
cmip-man 163/udp CMIP/TCP Manager
cmip-agent 164/tcp CMIP/TCP Agent
smip-agent 164/udp CMIP/TCP Agent
xns-courier 165/tcp Xerox
xns-courier 165/udp Xerox
s-net 166/tcp Sirius Systems
s-net 166/udp Sirius Systems
namp 167/tcp NAMP
namp 167/udp NAMP
rsvd 168/tcp RSVD
rsvd 168/udp RSVD
send 169/tcp SEND
send 169/udp SEND
print-srv 170/tcp Network PostScript
print-srv 170/udp Network PostScript
multiplex 171/tcp Network Innovations Multiplex
multiplex 171/udp Network Innovations Multiplex
cl/1 172/tcp Network Innovations CL/1
cl/1 172/udp Network Innovations CL/1
xyplex-mux 173/tcp Xyplex
xyplex-mux 173/udp Xyplex
mailq 174/tcp MAILQ
mailq 174/udp MAILQ
vmnet 175/tcp VMNET
vmnet 175/udp VMNET
genrad-mux 176/tcp GENRAD-MUX
genrad-mux 176/udp GENRAD-MUX
xdmcp 177/udp X Display Manager Control Protocol
nextstep 178/tcp NextStep Window Server
NextStep 178/udp NextStep Window Server
bgp 179/tcp Border Gateway Protocol
ris 180/tcp Intergraph
ris 180/udp Intergraph
unify 181/tcp Unify
unify 181/udp Unify
audit 182/tcp Unisys Audit SITP
audit 182/udp Unisys Audit SITP
ocbinder 183/tcp OCBinder
ocbinder 183/udp OCBinder
ocserver 184/tcp OCServer
ocserver 184/udp OCServer
remote-kis 185/tcp Remote-KIS
remote-kis 185/udp Remote-KIS
kis 186/tcp KIS Protocol
kis 186/udp KIS Protocol
aci 187/tcp Application Communication Interface
aci 187/udp Application Communication Interface
mumps 188/tcp Plus Five's MUMPS
mumps 188/udp Plus Five's MUMPS
qft 189/tcp Queued File Transport
gacp 190/tcp Gateway Access Control Protocol
cacp 190/udp Gateway Access Control Protocol
prospero 191/tcp Prospero Directory Service
osu-nms 192/tcp OSU Network Monitoring System
osu-nms 192/udp OSU Network Monitoring System
srmp 193/tcp Spider Remote Monitoring Protocol
srmp 193/udp Spider Remote Monitoring Protocol
irc 194/udp Internet Relay Chat Protocol
dn6-nlm-aud 195/tcp DNSIX Network Level Module Audit
dn6-smm-red 196/tcp DNSIX Session Mgt Module Audit Redir
dls 197/tcp Directory Location Service
dls 197/udp Directory Location Service
dls-mon 198/tcp Directory Location Service Monitor
dls-mon 198/udp Directory Location Service Monitor
smux 199/tcp SMUX
smux 199/udp SMUX
src 200/tcp IBM System Resource Controller
src 200/udp IBM System Resource Controller
at-rtmp 201/tcp AppleTalk Routing Maintenance
at-rtmp 201/udp AppleTalk Routing Maintenance
at-nbp 202/tcp AppleTalk Name Binding
at-nbp 202/udp AppleTalk Name Binding
at-3 203/tcp AppleTalk Unused
at-3 203/udp AppleTalk Unused
at-echo 204/tcp AppleTalk Echo
at-echo 204/udp AppleTalk Echo
at-5 205/tcp AppleTalk Unused
at-5 205/udp AppleTalk Unused
at-zis 206/tcp AppleTalk Zone Information
at-zis 206/udp AppleTalk Zone Information
at-7 207/tcp AppleTalk Unused
at-7 207/udp AppleTalk Unused
at-8 208/tcp AppleTalk Unused
at-8 208/udp AppleTalk Unused
tam 209/tcp Trivial Authenticated Mail Protocol
tam 209/udp Trivial Authenticated Mail Protocol
z39.50 210/tcp ANSI Z39.50
z39.50 210/udp ANSI Z39.50
914c/g 211/tcp Texas Instruments 914C/G Terminal
914c/g 211/udp Texas Instruments 914C/G Terminal
anet 212/tcp ATEXSSTR
anet 212/udp ATEXSSTR
ipx 213/tcp IPX
ipx 213/udp IPX
vmpwscs 214/tcp VM PWSCS
vmpwscs 214/udp VM PWSCS
softpc 215/tcp Insignia Solutions
softpc 215/udp Insignia Solutions
atls 216/tcp Access Technology License Server
dbase 217/tcp dBASE Unix
dbase 217/udp dBASE Unix
mpp 218/tcp Netix Message Posting Protocol
mpp 218/udp Netix Message Posting Protocol
uarps 219/tcp Unisys ARPs
uarps 219/udp Unisys ARPs
imap3 220/tcp Interactive Mail Access Protocol v3
fln-spx 221/tcp Berkeley rlogind with SPX auth
fln-spx 221/udp Berkeley rlogind with SPX auth
rsh-spx 222/tcp Berkeley rshd with SPX auth
rsh-spx 222/udp Berkeley rshd with SPX auth
cdc 223/tcp Certificate Distribution Center
cdc 223/udp Certificate Distribution Center
sur-meas 243/tcp Survey Measurement
sur-meas 243/udp Survey Measurement
link 245/tcp LINK
link 245/udp LINK
dsp3270 246/tcp Display Systems Protocol
dsp3270 246/udp Display Systems Protocol
pdap 344/tcp Prospero Data Access Protocol
pawserv 345/tcp Perf Analysis Workbench
pawserv 345/udp Perf Analysis Workbench
zserv 346/tcp Zebra server
fatserv 347/tcp Fatmen Server
csi-sgwp 348/tcp Cabletron Management Protocol
csi-sgwp 348/udp Cabletron Management Protocol
clearcase 371/tcp Clearcase
clearcase 371/udp Clearcase
ulistserv 372/tcp Unix Listserv
ulistserv 372/udp Unix Listserv
legent-1 373/tcp Legent Corporation
legent-1 373/udp Legent Corporation
legent-2 374/tcp Legent Corporation
legent-2 374/udp Legent Corporation
hassle 375/tcp Hassle
hassle 375/udp Hassle
nip 376/tcp Amiga Envoy Network Inquiry Proto
nip 376/udp Amiga Envoy Network Inquiry Proto
tnETOS 377/tcp NEC Corporation
tnETOS 377/udp NEC Corporation
dsETOS 378/tcp NEC Corporation
dsETOS 378/udp NEC Corporation
is99c 379/tcp TIA/EIA/IS-99 modem client
is99s 380/tcp TIA/EIA/IS-99 modem server
hp-collector 381/tcp hp performance data collector
hp-collector 381/udp hp performance data collector
hp-managed-node 382/tcp hp performance data managed node
hp-managed-node 382/udp hp performance data managed node
hp-alarm-mgr 383/tcp hp performance data alarm manager
hp-alarm-mgr 383/udp hp performance data alarm manager
arns 384/tcp A Remote Network Server System
arns 384/udp A Remote Network Server System
ibm-app 385/tcp IBM Application
ibm-app 385/tcp IBM Application
asa 386/tcp ASA Message Router Object Def.
asa 386/udp ASA Message Router Object Def.
aurp 387/tcp Appletalk Update-Based Routing Pro.
aurp 387/udp Appletalk Update-Based Routing Pro.
unidata-ldm 388/tcp Unidata LDM Version 4
unidata-ldm 388/udp Unidata LDM Version 4
ldap 389/tcp Lightweight Directory Access Protocol
uis 390/tcp UIS
uis 390/udp UIS
synotics-relay 391/tcp SynOptics SNMP Relay Port
synotics-relay 391/udp SynOptics SNMP Relay Port
synotics-broker 392/tcp SynOptics Port Broker Port
synotics-broker 392/udp SynOptics Port Broker Port
dis 393/tcp Data Interpretation System
dis 393/udp Data Interpretation System
embl-ndt 394/tcp EMBL Nucleic Data Transfer
embl-ndt 394/udp EMBL Nucleic Data Transfer
netcp 395/tcp NETscout Control Protocol
netcp 395/udp NETscout Control Protocol
netware-ip 396/tcp Novell Netware over IP
netware-ip 396/udp Novell Netware over IP
mptn 397/tcp Multi Protocol Trans. Net.
mptn 397/udp Multi Protocol Trans. Net.
kryptolan 398/tcp Kryptolan
kryptolan 398/udp Kryptolan
iso-tsap-c2 399/tcp ISO-TSAP Class 2
iso-tsap-c2 399/udp ISO-TSAP Class 2
work-sol 400/tcp Workstation Solutions
work-sol 400/udp Workstation Solutions
ups 401/udp Uninterruptible Power Supply
genie 402/tcp Genie Protocol
genie 402/udp Genie Protocol
decap 403/tcp decap
decap 403/udp decap
nced 404/tcp nced
nced 404/udp nced
ncld 405/tcp ncld
ncld 405/udp ncld
imsp 406/tcp Interactive Mail Support Protocol
imsp 406/udp Interactive Mail Support Protocol
timbuktu 407/tcp Timbuktu
prm-sm 408/tcp Prospero Resource Manager Sys. Man.
prm-nm 409/tcp Prospero Resource Manager Node Man.
decladebug 410/udp DECLadebug Remote Debug Protocol
rmt 411/tcp Remote MT Protocol
rmt 411/udp Remote MT Protocol
synoptics-trap 412/tcp Trap Convention Port
synoptics-trap 412/udp Trap Convention Port
smsp 413/tcp SMSP
smsp 413/udp SMSP
infoseek 414/tcp InfoSeek
infoseek 414/udp InfoSeek
bnet 415/tcp BNet
bnet 415/udp BNet
silverplatter 416/tcp Silverplatter
silverplatter 416/udp Silverplatter
onmux 417/tcp Onmux
onmux 417/udp Onmux
hyper-g 418/tcp Hyper-G
ariel1 419/tcp Ariel
smpte 420/udp SMPTE
ariel2 421/tcp Ariel
ariel3 422/tcp Ariel
opc-job-start 423/tcp IBM Operations Planning and Control Start
opc-job-track 424/tcp IBM Operations Planning and Control Track
icad-el 425/tcp ICAD
smartsdp 426/tcp smartsdp
smartsdp 426/udp smartsdp
svrloc 427/tcp Server Location
svrloc 427/udp Server Location
ocs_cmu 428/tcp OCS_CMU
ocs_cmu 428/udp OCS_CMU
ocs_amu 429/tcp OCS_AMU
ocs_amu 429/udp OCS_AMU
utmpsd 430/tcp UTMPSD
utmpsd 430/udp UTMPSD
utmpcd 431/tcp UTMPCD
utmpcd 431/udp UTMPCD
iasd 432/tcp IASD
iasd 432/udp IASD
nnsp 433/tcp NNSP
nnsp 433/udp NNSP
mobileip-agent 434/tcp MobileIP-Agent
mobilip-mn 435/tcp MobilIP-MN
dna-cml 436/tcp DNA-CML
dna-cml 436/udp DNA-CML
comscm 437/tcp comscm
comscm 437/udp comscm
dsfgw 438/tcp dsfgw
dsfgw 438/udp dsfgw
dasp 439/tcp dasp Thomas Obermair
dasp 439/udp dasp tommy@inlab.m.eunet.de
sgcp 440/tcp sgcp
sgcp 440/udp sgcp
decvms-sysmgt 441/tcp decvms-sysmgt
cvc_hostd 442/tcp cvc_hostd
cvc_hostd 442/udp cvc_hostd
https 443/tcp https MCom
snpp 444/tcp Simple Network Paging Protocol
snpp 444/udp Simple Network Paging Protocol
microsoft-ds 445/udp Microsoft-DS
ddm-rdb 446/tcp DDM-RDB
ddm-rdb 446/udp DDM-RDB
ddm-dfm 447/tcp DDM-RFM
ddm-dfm 447/udp DDM-RFM
ddm-byte 448/tcp DDM-BYTE
ddm-byte 448/udp DDM-BYTE
as-servermap 449/tcp AS Server Mapper
as-servermap 449/udp AS Server Mapper
tserver 450/tcp TServer
sfs-smp-net 451/tcp Cray Network Semaphore server
sfs-smp-net 451/udp Cray Network Semaphore server
sfs-config 452/tcp Cray SFS config server
sfs-config 452/udp Cray SFS config server
creativeserver 453/tcp CreativeServer
creativeserver 453/udp CreativeServer
contentserver 454/tcp ContentServer
contentserver 454/udp ContentServer
creativepartnr 455/tcp CreativePartnr
creativepartnr 455/udp CreativePartnr
macon-tcp 456/tcp macon-tcp
macon-udp 456/udp macon-udp
scohelp 457/tcp scohelp
scohelp 457/udp scohelp
appleqtc 458/tcp apple quick time
appleqtc 458/udp apple quick time
ampr-rcmd 459/tcp ampr-rcmd
ampr-rcmd 459/udp ampr-rcmd
skronk 460/tcp skronk
skronk 460/udp skronk
exec 512/tcp remote process execution;
biff 512/udp used by mail system to notify users
login 513/tcp remote login a la telnet;
who 513/udp maintains data bases showing who's
cmd 514/tcp like exec, but automatic
syslog 514/udp
printer 515/tcp spooler
talk 517/udp
ntalk 518/tcp
utime 519/tcp unixtime
utime 519/udp unixtime
efs 520/tcp extended file name server
router 520/udp local routing process (on site);
timed 525/tcp timeserver
timed 525/udp timeserver
tempo 526/tcp newdate
tempo 526/udp newdate
courier 530/tcp rpc
courier 530/udp rpc
conference 531/tcp chat
conference 531/udp chat
netnews 532/tcp readnews
netnews 532/udp readnews
netwall 533/tcp for emergency broadcasts
netwall 533/udp for emergency broadcasts
apertus-ldp 539/tcp Apertus Technologies Load Determination
apertus-ldp 539/udp Apertus Technologies Load Determination
uucp 540/tcp uucpd
uucp-rlogin 541/tcp uucp-rlogin
uucp-rlogin 541/udp uucp-rlogin
klogin 543/tcp
klogin 543/udp
kshell 544/tcp krcmd
kshell 544/udp krcmd
appleqtcsrvr 545/tcp appleqtcsrvr
appleqtcsrvr 545/udp appleqtcsrvr
new-rwho 550/tcp new-who
new-rwho 550/udp new-who
dsf 555/tcp
dsf 555/udp
remotefs 556/tcp rfs server
remotefs 556/udp rfs server
openvms-sysipc 557/tcp openvms-sysipc
openvms-sysipc 557/udp openvms-sysipc
sdnskmp 558/tcp SDNSKMP
sdnskmp 558/udp SDNSKMP
teedtap 559/tcp TEEDTAP
teedtap 559/udp TEEDTAP
rmonitor 560/tcp rmonitord
rmonitor 560/udp rmonitord
monitor 561/tcp
monitor 561/udp
chshell 562/tcp chcmd
chshell 562/udp chcmd
9pfs 564/tcp plan 9 file service
9pfs 564/udp plan 9 file service
whoami 565/tcp whoami
whoami 565/udp whoami
meter 570/tcp demon
meter 570/udp demon
meter 571/tcp udemon
meter 571/udp udemon
ipcserver 600/tcp Sun IPC server
ipcserver 600/udp Sun IPC server
nqs 607/tcp nqs
nqs 607/udp nqs
urm 606/tcp Cray Unified Resource Manager
urm 606/udp Cray Unified Resource Manager
sift-uft 608/tcp Sender-Initiated/Unsolicited File Transfer
npmp-trap 609/tcp npmp-trap
npmp-trap 609/udp npmp-trap
npmp-local 610/tcp npmp-local
npmp-local 610/udp npmp-local
npmp-gui 611/tcp npmp-gui
npmp-gui 611/udp npmp-gui
ginad 634/tcp ginad
ginad 634/udp ginad
mdqs 666/tcp
mdqs 666/udp
doom 666/tcp doom Id Software
elcsd 704/tcp errlog copy/server daemon
elcsd 704/udp errlog copy/server daemon
flexlm 744/tcp Flexible License Manager
flexlm 744/udp Flexible License Manager
fujitsu-dev 747/tcp Fujitsu Device Control
fujitsu-dev 747/udp Fujitsu Device Control
ris-cm 748/tcp Russell Info Sci Calendar Manager
ris-cm 748/udp Russell Info Sci Calendar Manager
kerberos-adm 749/tcp kerberos administration
rfile 750/tcp
loadav 750/udp
pump 751/tcp
pump 751/udp
qrh 752/tcp
qrh 752/udp
rrh 753/tcp
rrh 753/udp
tell 754/tcp send
tell 754/udp send
nlogin 758/tcp
nlogin 758/udp
con 759/tcp
con 759/udp
ns 760/tcp
ns 760/udp
rxe 761/tcp
rxe 761/udp
quotad 762/tcp
quotad 762/udp
cycleserv 763/tcp
cycleserv 763/udp
omserv 764/tcp
omserv 764/udp
webster 765/tcp
webster 765/udp
phonebook 767/tcp phone
phonebook 767/udp phone
vid 769/tcp
vid 769/udp
cadlock 770/tcp
cadlock 770/udp
rtip 771/tcp
rtip 771/udp
cycleserv2 772/tcp
cycleserv2 772/udp
submit 773/tcp
notify 773/udp
rpasswd 774/tcp
acmaint_dbd 774/udp
entomb 775/tcp
acmaint_transd 775/udp
wpages 776/tcp
wpages 776/udp
wpgs 780/tcp
wpgs 780/udp
concert 786/tcp Concert
concert 786/udp Concert
mdbs_daemon 800/tcp
mdbs_daemon 800/udp
device 801/tcp
device 801/udp
accessbuilder 888/tcp AccessBuilder
accessbuilder 888/udp AccessBuilder
xtreelic 996/tcp Central Point Software
xtreelic 996/udp Central Point Software
maitrd 997/tcp
maitrd 997/udp
busboy 998/tcp
puparp 998/udp
garcon 999/tcp
applix 999/udp Applix ac
puprouter 999/tcp
puprouter 999/udp
cadlock 1000/tcp
ock 1000/udp
1023/tcp Reserved
1024/udp Reserved

For information about ports greater than 1024 see the list of REGISTERED PORT NUMBERS

REFERENCES

[RFC768] Postel, J., "User Datagram Protocol", STD 6, RFC 768, USC/Information Sciences Institute, August 1980.

[RFC793]Postel, J., ed., "Transmission Control Protocol - DARPA Internet Program Protocol Specification", STD 7, RFC 793, USC/Information Sciences Institute, September 1981.