knownports / By year / 2021–2026
Registered 2021–2026Port numbers first registered from 2021 to 2026
69 port numbers carry a first recorded registration date from 2021 to 2026 (10 in 2021, 25 in 2022, 8 in 2023, 7 in 2024, 9 in 2025, 10 in 2026). The years are grouped on one page because each holds few new numbers. 26 are assigned on both TCP and UDP, 32 on TCP alone and 11 on UDP alone, so 62.3% are single-transport assignments, against 27.9% across all 2,443 dated numbers. Three of them are System Ports below 1024: 300 tacacss, 914 rift-lies and 915 rift-ties. The busiest range is ports 5000–5999 with 16, ahead of ports 4000–4999 with eight. Five cite an RFC beyond the general registry documents, and nine also have an SCTP or DCCP entry. Eight of the entries were modified in a later year.
Every number first registered from 2021 to 2026
| Port | Service | Label | Protocols | Registered |
|---|---|---|---|---|
| 8017 | cisco-cloudsec | Cisco Cloudsec Dataplane Port Number | UDP | Mar 18, 2021 |
| 5994 | rms-agent | RMS Agent Listening Service | TCP | Mar 24, 2021 |
| 31337 | eldim | eldim is a secure file upload proxy | TCPUDP | May 14, 2021 |
| 20810 | crtech-nlm | CRTech NLM | TCP | Jun 24, 2021 |
| 5540 | matter | Matter Operational Discovery and Communi | TCPUDP | Jul 16, 2021 |
| 28080 | thor-engine | thor/server - ML engine | TCP | Sep 29, 2021 |
| 5798 | enlabel-dpl | Proprietary Website deployment service | TCP | Oct 12, 2021 |
| 2873 | psrt | PubSub Realtime Telemetry Protocol | TCPUDP | Nov 12, 2021 |
| 39063 | vroa | Children's hearing test/Telemedicine | TCP | Dec 23, 2021 |
| 7123 | snif | SNIF End-to-End TLS Relay Control Connection | TCPUDP | Dec 24, 2021 |
| 4194 | spdm | Security Protocol and Data Model | TCP | Jan 10, 2022 |
| 4319 | skytale | Sentyron SkyTale encrypted communication | TCPUDP | Jan 20, 2022 |
| 8432 | pgbackrest | PostgreSQL Backup | TCP | Jan 26, 2022 |
| 38638 | psqlmws | Premier SQL Middleware Server | TCP | Feb 15, 2022 |
| 9340 | gribi | gRPC Routing Information Base Interface | TCP | Mar 29, 2022 |
| 17010 | ncpu | Plan 9 cpu port | TCP | May 13, 2022 |
| 6980 | qolyester | QoS-extended OLSR protocol | UDP | May 24, 2022 |
| 5242 | attune | ATTUne API | TCP | Jun 1, 2022 |
| 5903 | ff-ice | Flight & Flow Info for Collaborative Env | TCPUDPSCTP | Jun 3, 2022 |
| 5904 | ag-swim | Air-Ground SWIM | TCPUDPSCTP | Jun 3, 2022 |
| 5905 | asmgcs | Adv Surface Mvmnt and Guidance Cont Sys | TCPUDPSCTP | Jun 3, 2022 |
| 5906 | rpas-c2 | Remotely Piloted Vehicle C&C | TCPUDPSCTP | Jun 3, 2022 |
| 5907 | dsd | Distress and Safety Data App | TCPUDPSCTP | Jun 3, 2022 |
| 5908 | ipsma | IPS Management Application | TCPUDPSCTP | Jun 3, 2022 |
| 5909 | agma | Air-ground media advisory | TCPUDPSCTP | Jun 3, 2022 |
| 5243 | xycstatus | xyClient Status API and rendevous point | TCP | Jun 6, 2022 |
| 3301 | tarantool | Tarantool in-memory computing platform | TCPUDP | Jun 10, 2022 |
| 5820 | autopassdaemon | AutoPass licensing | TCP | Jun 10, 2022 |
| 7690 | sovd | Service-Oriented Vehicle Diagnostics | TCP | Jul 1, 2022 |
| 21801 | sal | Safe AutoLogon | TCP | Jul 5, 2022 |
| 4792 | unified-bus | IP Routable Unified Bus | TCPUDP | Jul 8, 2022 |
| 12546 | carb-repl-ctrl | Carbonite Server Replication Control | TCP | Oct 7, 2022 |
| 8433 | aws-as2 | Non Persistent Desktop and Application Streaming | UDP | Nov 7, 2022 |
| 42999 | curiosity | API endpoint for search application | TCP | Dec 9, 2022 |
| 20000 | dnp | DNP | TCPUDPSCTP | Dec 20, 2022 |
| 914 | rift-lies | Routing in Fat Trees Link Information Element | UDP | Feb 17, 2023 |
| 915 | rift-ties | Routing in Fat Trees Topology Information Element | UDP | Feb 17, 2023 |
| 2259 | bid-serv | BIF identifiers resolution service | TCPUDP | Mar 6, 2023 |
| 2369 | bif-p2p | Blockchain Identifier InFrastructure P2P | TCPUDP | Mar 6, 2023 |
| 13832 | a-trust-rpc | Certificate Management and Issuing | TCP | Jun 5, 2023 |
| 8448 | matrix-fed | Matrix Federation Protocol | TCP | Aug 4, 2023 |
| 8061 | nikatron-dev | Nikatron Device Protocol | TCP | Sep 7, 2023 |
| 8668 | spartan | Spartan management | TCP | Oct 26, 2023 |
| 5543 | qftest-lic-mcp | QF-Test License Server / QF-Test MCP Server | TCP | Jan 5, 2024 |
| 25100 | db2c-tls | IBM Db2 Client Interface - Encrypted | TCP | Mar 5, 2024 |
| 6318 | iona-data | IONA Measurement and control data | TCP | Jul 1, 2024 |
| 7575 | wtmi-panel | Main access port for WTMI Panel | TCP | Aug 13, 2024 |
| 27016 | chlenix | Cloud hosting environment network | TCP | Sep 23, 2024 |
| 5914 | ipsdtls | Security for Internet Protocol Suite | TCPUDPSCTP | Nov 19, 2024 |
| 2794 | urp | Uniform Resource Platform | TCPUDP | Nov 26, 2024 |
| 45185 | witsnet | Wire and Wireless transfer on synchroniz | TCPUDP | Mar 11, 2025 |
| 7668 | authoritygate | AuthorityGate Secure API communication for Orchestrated task sequencing | TCP | Mar 28, 2025 |
| 4503 | m-bus-oms | M-Bus-OMS over UDP | UDP | May 19, 2025 |
| 4793 | uet | Ultra Ethernet Transport | UDP | Jun 16, 2025 |
| 300 | tacacss | TLS Secure Login Host Protocol (TACACSS) | TCP | Jul 15, 2025 |
| 11434 | ollama | Ollama | TCP | Sep 26, 2025 |
| 24601 | udpstp | UDP-based IP-Layer Capacity and Performance Measurement protocol | UDP | Sep 26, 2025 |
| 21337 | xahaud | Xahau P2P network protocol | TCP | Oct 16, 2025 |
| 9986 | kaostransport | KAOS secure message transport protocol for safety-critical environments | TCP | Oct 30, 2025 |
| 4794 | veroce | veRoCE Transport Protocol | UDP | Mar 6, 2026 |
| 9183 | sirius-agent | Sirius Configuration Agent | TCPUDP | Mar 9, 2026 |
| 34965 | profinet-cm-sec | PROFINET secure connection management and key provisioning | TCPUDP | Mar 10, 2026 |
| 34966 | profinet-rt-sec | PROFINET secure real-time data transfer over UDP (unicast and multicast) | UDP | Mar 10, 2026 |
| 5319 | roughtime | Roughtime time synchronization | TCPUDP | Mar 27, 2026 |
| 4480 | agtpagtp-quic | Agent Transfer Protocol Agent Transfer Protocol over QUIC | TCPUDP | Apr 30, 2026 |
| 30939 | dilithium3 | Persistent peer-to-peer connections for block propagation, transaction relay, and BFT consensus message exchange. | TCPUDP | May 28, 2026 |
| 6610 | bencher | Bencher API | TCPUDP | Jun 17, 2026 |
| 4930 | fmsg | Host-to-host messaging | TCP | Oct 15, 2026 |
| 8011 | bier-echo | The UDP destination port number for the IP/UDP encapsulated BIER Echo Reply message. | UDP | Oct 22, 2026 |
A port number appears under the year of its earliest recorded registration date. Assignments made before IANA recorded dates carry none and are not counted here.