knownports / Port ranges / 33000–34999

User PortsPorts 33000–34999

IANA lists at least one assignment on 20 of the 2,000 numbers from 33000 to 34999, 1.0%. The longest stretch with no assignment on any protocol runs from 34568 to 34961 (394 numbers). 4 numbers here are assigned on TCP alone and 2 on UDP alone. Of the 18 dated assignments, the earliest recorded date is July 2002 (diamondport on 33331); the latest is March 10, 2026, for profinet-rt-sec on 34966.

3300033100332003330033400335003360033700338003390034000341003420034300344003450034600347003480034900
33000330503310033150332003325033300333503340033450335003355033600336503370033750338003385033900339503400034050341003415034200342503430034350344003445034500345503460034650347003475034800348503490034950
One square per number, 33000 at top left. Outlined squares have their own page. TCP and UDPTCP onlyUDP onlySCTP or DCCP onlyno assignment

Every assigned number from 33000 to 34999

33000–33099 · 2 numbers assigned
PortServiceProtocolsLabelRegistered
33000wg-endpt-commsTCPWatchGuard Endpoint CommunicationsJan 16, 2020
33001–33059: no assignment, 59 numbers
33060mysqlxTCPMySQL Database Extended InterfaceAug 6, 2015
33061–33099: no assignment, 39 numbers
33100–33199 · 1 number assigned
PortServiceProtocolsLabelRegistered
33100–33122: no assignment, 23 numbers
33123aurora-balaenaTCPUDPAurora (Balaena Ltd)Feb 14, 2008
33124–33199: no assignment, 76 numbers

33200–33299: no assignment, 100 numbers

33300–33399 · 3 numbers assigned
PortServiceProtocolsLabelRegistered
33300–33330: no assignment, 31 numbers
33331diamondportTCPUDPDiamondCentral InterfaceJul 2002
33333dgi-servTCPDigital Gaslight ServiceMar 2, 2010
33334speedtrace
speedtrace-disc		TCPUDPSpeedTrace TraceAgent
SpeedTrace TraceAgent Discovery		Feb 1, 2012
33335–33399: no assignment, 65 numbers
33400–33499 · 2 numbers assigned
PortServiceProtocolsLabelRegistered
33400–33433: no assignment, 34 numbers
33434tracerouteTCPUDPtraceroute use—
33435mtraceUDPIP Multicast TracerouteDec 13, 2017
33436–33499: no assignment, 64 numbers

33500–33599: no assignment, 100 numbers

33600–33699 · 1 number assigned
PortServiceProtocolsLabelRegistered
33600–33655: no assignment, 56 numbers
33656snip-slaveTCPUDPSNIP SlaveAug 2005
33657–33699: no assignment, 43 numbers

33700–33799: no assignment, 100 numbers

33800–33899 · 1 number assigned
PortServiceProtocolsLabelRegistered
33800–33889: no assignment, 90 numbers
33890digilent-adeptTCPAdept IP protocolJun 25, 2020

33900–34199: no assignment, 300 numbers

34200–34299 · 1 number assigned
PortServiceProtocolsLabelRegistered
34200–34248: no assignment, 49 numbers
34249turbonote-2TCPUDPTurboNote Relay Server Default Port—
34250–34299: no assignment, 50 numbers
34300–34399 · 2 numbers assigned
PortServiceProtocolsLabelRegistered
34300–34377: no assignment, 78 numbers
34378p-net-localTCPUDPP-Net on IP localFeb 2004
34379p-net-remoteTCPUDPP-Net on IP remoteFeb 2004
34380–34399: no assignment, 20 numbers

34400–34499: no assignment, 100 numbers

34500–34599 · 1 number assigned
PortServiceProtocolsLabelRegistered
34500–34566: no assignment, 67 numbers
34567dhanalakshmi
edi_service		TCPUDPdhanalakshmi.org EDI Service
dhanalakshmi.org EDI Service		Apr 20, 2010
34568–34599: no assignment, 32 numbers

34600–34899: no assignment, 300 numbers

34900–34999 · 6 numbers assigned
PortServiceProtocolsLabelRegistered
34900–34961: no assignment, 62 numbers
34962profinet-rtTCPUDPPROFInet RT UnicastNov 2004
34963profinet-rtmTCPUDPPROFInet RT MulticastNov 2004
34964profinet-cmTCPUDPPROFInet Context ManagerNov 2004
34965profinet-cm-secTCPUDPPROFINET secure connection management and key provisioningMar 10, 2026
34966profinet-rt-secUDPPROFINET secure real-time data transfer over UDP (unicast and multicast)Mar 10, 2026
34967–34979: no assignment, 13 numbers
34980ethercatTCPUDPEtherCAT PortNov 2003
34981–34999: no assignment, 19 numbers