knownports / Port ranges / 19000–20999

User PortsPorts 19000–20999

IANA lists at least one assignment on 39 of the 2,000 numbers from 19000 to 20999, 1.9%. The longest stretch with no assignment on any protocol runs from 20223 to 20479 (257 numbers). 6 numbers here are assigned on TCP alone and 2 on UDP alone. Of the 24 dated assignments, the earliest recorded date is August 2002 (sxuptp on 19540); the latest is December 20, 2022, for dnp on 20000. 19999, 20000 and 20049 have an SCTP entry as well.

One square per number, 19000 at top left. Outlined squares have their own page. TCP and UDPTCP onlyUDP onlySCTP or DCCP onlyno assignment

Every assigned number from 19000 to 20999

19000–19099 · 3 numbers assigned

Port	Service	Protocols	Label	Registered
19000	`igrid`	TCPUDP	iGrid Server	Nov 2004
19007	`scintilla`	TCPUDP	Scintilla protocol for device services	Mar 4, 2014
19008–19019: no assignment, 12 numbers
19020	`j-link`	TCP	J-Link TCP/IP Protocol	—
19021–19099: no assignment, 79 numbers

19100–19199 · 2 numbers assigned

Port	Service	Protocols	Label	Registered
19100–19190: no assignment, 91 numbers
19191	`opsec-uaa`	TCPUDP	OPSEC UAA	—
19194	`ua-secureagent`	TCPUDP	UserAuthority SecureAgent	Jan 2003

19200–19299 · 2 numbers assigned

Port	Service	Protocols	Label	Registered
19200–19219: no assignment, 20 numbers
19220	`cora` `cora-disc`	TCPUDP	Client Connection Management and Data Exchange Service Discovery for Client Connection Management and Data Exchange Service	Nov 10, 2016
19221–19282: no assignment, 62 numbers
19283	`keysrvr`	TCPUDP	Key Server for SASSAFRAS	—
19284–19299: no assignment, 16 numbers

19300–19399 · 2 numbers assigned

Port	Service	Protocols	Label	Registered
19300–19314: no assignment, 15 numbers
19315	`keyshadow`	TCPUDP	Key Shadow for SASSAFRAS	—
19316–19397: no assignment, 82 numbers
19398	`mtrgtrans`	TCPUDP	mtrgtrans	—

19400–19499 · 3 numbers assigned

Port	Service	Protocols	Label	Registered
19400–19409: no assignment, 10 numbers
19410	`hp-sco`	TCPUDP	hp-sco	—
19411	`hp-sca`	TCPUDP	hp-sca	—
19412	`hp-sessmon`	TCPUDP	HP-SESSMON	—
19413–19499: no assignment, 87 numbers

19500–19599 · 3 numbers assigned

Port	Service	Protocols	Label	Registered
19500–19538: no assignment, 39 numbers
19539	`fxuptp`	TCPUDP	FXUPTP	Aug 2005
19540	`sxuptp`	TCPUDP	SXUPTP	Aug 2002
19541	`jcp`	TCPUDP	JCP Client	—
19542–19599: no assignment, 58 numbers

19600–19699: no assignment, 100 numbers

19700–19799 · 2 numbers assigned

Port	Service	Protocols	Label	Registered
19700–19787: no assignment, 88 numbers
19788	`mle`	UDP	Mesh Link Establishment	Dec 18, 2012
19790	`faircom-db`	TCP	FairCom Database	Dec 4, 2020

19800–19899: no assignment, 100 numbers

19900–19999 · 2 numbers assigned

Port	Service	Protocols	Label	Registered
19900–19997: no assignment, 98 numbers
19998	`iec-104-sec`	TCP	IEC 60870-5-104 process control - secure	Oct 18, 2010
19999	`dnp-sec`	TCPUDPSCTP	Distributed Network Protocol - Secure	Aug 4, 2008

20000–20099 · 13 numbers assigned

Port	Service	Protocols	Label	Registered
20000	`dnp`	TCPUDPSCTP	DNP	Dec 20, 2022
20001	`microsan`	TCPUDP	MicroSAN	Feb 2004
20002	`commtact-http`	TCPUDP	Commtact HTTP	Dec 2004
20003	`commtact-https`	TCPUDP	Commtact HTTPS	Dec 2004
20005	`openwebnet`	TCPUDP	OpenWebNet protocol for electric network	Apr 9, 2008
20012	`ss-idi-disc`	UDP	Samsung Interdevice Interaction discovery	—
20013	`ss-idi`	TCP	Samsung Interdevice Interaction	—
20014	`opendeploy`	TCPUDP	OpenDeploy Listener	Aug 2005
20015–20033: no assignment, 19 numbers
20034	`nburn-id` `nburn_id`	TCPUDP	NetBurner ID Port NetBurner ID Port	Nov 2003
20035–20045: no assignment, 11 numbers
20046	`tmophl7mts`	TCPUDP	TMOP HL7 Message Transfer Service	Jul 31, 2009
20048	`mountd`	TCPUDP	NFS mount protocol	Aug 9, 2010
20049	`nfsrdma`	TCPUDPSCTP	Network File System (NFS) over RDMA	—
20057	`avesterra`	TCP	AvesTerra Hypergraph Transfer Protocol (HGTP)	Jun 6, 2016
20058–20099: no assignment, 42 numbers

20100–20199 · 1 number assigned

Port	Service	Protocols	Label	Registered
20100–20166: no assignment, 67 numbers
20167	`tolfab`	TCPUDP	TOLfab Data Change	Mar 2006
20168–20199: no assignment, 32 numbers

20200–20299 · 2 numbers assigned

Port	Service	Protocols	Label	Registered
20202	`ipdtp-port`	TCPUDP	IPD Tunneling Port	Jan 2003
20203–20221: no assignment, 19 numbers
20222	`ipulse-ics`	TCPUDP	iPulse-ICS	—
20223–20299: no assignment, 77 numbers

20300–20399: no assignment, 100 numbers

20400–20499 · 1 number assigned

Port	Service	Protocols	Label	Registered
20400–20479: no assignment, 80 numbers
20480	`emwavemsg`	TCPUDP	emWave Message Service	Feb 14, 2008
20481–20499: no assignment, 19 numbers

20500–20599: no assignment, 100 numbers

20600–20699 · 1 number assigned

Port	Service	Protocols	Label	Registered
20600–20669: no assignment, 70 numbers
20670	`track`	TCPUDP	Track	—
20671–20699: no assignment, 29 numbers

20700–20799: no assignment, 100 numbers

20800–20899 · 1 number assigned

Port	Service	Protocols	Label	Registered
20800–20809: no assignment, 10 numbers
20810	`crtech-nlm`	TCP	CRTech NLM	Jun 24, 2021
20811–20899: no assignment, 89 numbers

20900–20999 · 1 number assigned

Port	Service	Protocols	Label	Registered
20900–20998: no assignment, 99 numbers
20999	`athand-mmp`	TCPUDP	At Hand MMP	—