knownports / Ports 1024–1999 / Port 1720

Port1720

  • h323hostcallH.323 Call Control Signalling

IANA has registered port 1720 to h323hostcall on TCP, UDP and SCTP. It is one of the 88 numbers with an SCTP entry. Among the 97 dated assignments in ports 1024–1999, its registration on July 30, 2014 is the third most recent.

  1. 1717fj-hdnet
  2. 1718h323gatedisc
  3. 1719h323gatestat
  4. 1720h323hostcall
  5. 1721caicci
  6. 1722hks-lm
  7. 1723pptp
TCP assignedUDP assignedSCTP assignedreservedno entryAll 963 assigned numbers in ports 1024–1999

Registry entries

ServiceProtocolsRegisteredModifiedRFCsOther specs
h323hostcallTCPUDPSCTPJul 30, 2014Jan 31, 2013——

Where it sits in the registry

Port 1720 is one of 963 numbers with an assignment in ports 1024–1999 (98.7% of the range). Two other numbers in the range are assigned on exactly the same transports, TCP, UDP and SCTP. Of the 97 numbers in the range with a recorded registration date, 94 were registered before it (July 30, 2014) and two after. IANA last modified the entry on January 31, 2013, -1 years after the first recorded registration. Six other numbers in the registry carry the same modification date, a sign of one batch update.

Status on each protocol

ProtocolOn port 1720Other numbers with the same statusNearest with the same status
TCPassigned to h323hostcall5,8871719 h323gatestat
UDPassigned to h323hostcall5,5001719 h323gatestat
SCTPassigned to h323hostcall871528 norp
DCCPno entry6,0801719 h323gatestat

40 other assigned numbers in the registry have exactly this combination across all four protocols.

The nearest assigned numbers

PortServiceLabelProtocolsRegisteredDistance
1717fj-hdnet—TCPUDP—3
1718h323gatediscH.323 Multicast Gatekeeper DiscoverTCPUDP—2
1719h323gatestatH.323 Unicast Gatekeeper SignalingTCPUDP—1
1721caicci—TCPUDP—1
1722hks-lmHKS License ManagerTCPUDP—2
1723pptp—TCPUDP—3

Other entries that mention h323hostcall

The text h323hostcall appears in the name or label of one other registry entry, every one shown here. It is a text match, not a statement that the services are related.

  • 1300 h323hostcallsc “H.323 Secure Call Control Signalling”

Listed in SCTP and DCCP port numbers