knownports / Ports 400–499 / Port 443

Port443

  • httpshttp protocol over TLS/SSL

IANA has registered port 443 to https on TCP, UDP and SCTP. It is one of the 88 numbers with an SCTP entry. The entry cites RFC 9110, as does http on port 80, the plain form it secures.

  1. 440sgcp
  2. 441decvms-sysmgt
  3. 442cvc-hostd
  4. 443https
  5. 444snpp
  6. 445microsoft-ds
  7. 446ddm-rdb
TCP assignedUDP assignedSCTP assignedreservedno entryAll 100 assigned numbers in ports 400–499

Registry entries

ServiceProtocolsRegisteredModifiedRFCsOther specs
httpsTCPUDPSCTP—Feb 7, 2022RFC 9110, RFC 9260—

Cited RFCs

RFCTitlePublishedStatusLater changes
RFC 9110HTTP SemanticsJune 2022Internet Standard—
RFC 9260Stream Control Transmission ProtocolJune 2022Proposed Standard—

Other names built on https

664 oob-ws-https 1184 llsurfup-https 2381 compaq-https 4036 wap-push-https 4849 appserv-https 5989 wbem-https 5990 wbem-exp-https 6443 sun-sr-https 6771 plysrv-https 7443 oracleas-https 7677 sun-user-https 8443 pcsync-https 8991 https-wmap 9443 tungsten-https 16993 amt-soap-https 20003 commtact-https

Listed in Ports that cite an RFC · Plain and TLS port pairs · SCTP and DCCP port numbers · Web and proxy ports beyond 80 and 443