Port 20000- Port 20100
Port 20100- Port 20200
Port 20200- Port 20300
Port 20300- Port 20400
Port 20400- Port 20500
Port 20500- Port 20600
Port 20600- Port 20700
Port 20700- Port 20800
Port 20800- Port 20900
Port 20900- Port 21000
Port 20100- Port 20200
Port 20200- Port 20300
Port 20300- Port 20400
Port 20400- Port 20500
Port 20500- Port 20600
Port 20600- Port 20700
Port 20700- Port 20800
Port 20800- Port 20900
Port 20900- Port 21000
| Port | Protocol (TCP/UDP) | Title | Description |
| Port 20000 | tcp | dnp | DNP |
| Port 20000 | udp | dnp | DNP |
| Port 20001 | tcp | microsan | MicroSAN |
| Port 20001 | udp | microsan | MicroSAN |
| Port 20002 | tcp | commtact-http | Commtact HTTP |
| Port 20002 | udp | commtact-http | Commtact HTTP |
| Port 20003 | tcp | commtact-https | Commtact HTTPS |
| Port 20003 | udp | commtact-https | Commtact HTTPS |
| Port 20005 | tcp | openwebnet | OpenWebNet protocol for network |
| Port 20005 | udp | openwebnet | OpenWebNet protocol for network |
| Port 20012 | udp | ss-idi-disc | Samsung Interdevice Interaction |
| Port 20013 | tcp | ss-idi | Samsung Interdevice Interaction |
| Port 20014 | tcp | opendeploy | OpenDeploy Listener |
| Port 20014 | udp | opendeploy | OpenDeploy Listener |
| Port 20034 | tcp | nburn_id | NetBurner ID Port |
| Port 20034 | udp | nburn_id | NetBurner ID Port |
| Port 20046 | tcp | tmophl7mts | TMOP HL7 Message Service |
| Port 20046 | udp | tmophl7mts | TMOP HL7 Message Service |
| Port 20048 | tcp | mountd | NFS mount protocol |
| Port 20048 | udp | mountd | NFS mount protocol |
| Port 20049 | tcp | nfsrdma | Network File System over |
| Port 20049 | udp | nfsrdma | Network File System over |
| Port 20049 | sctp | nfsrdma | Network File System over |
| Port 20167 | tcp | tolfab | TOLfab Data Change |
| Port 20167 | udp | tolfab | TOLfab Data Change |
| Port 20202 | tcp | ipdtp-port | IPD Tunneling Port |
| Port 20202 | udp | ipdtp-port | IPD Tunneling Port |
| Port 20222 | tcp | ipulse-ics | iPulse-ICS |
| Port 20222 | udp | ipulse-ics | iPulse-ICS |
| Port 20480 | tcp | emwavemsg | emWave Message Service |
| Port 20480 | udp | emwavemsg | emWave Message Service |
| Port 20670 | tcp | track | Track |
| Port 20670 | udp | track | Track |
| Port 20999 | tcp | athand-mmp | At Hand MMP |
| Port 20999 | udp | athand-mmp | AT Hand MMP |
| Port 21000 | tcp | irtrans | IRTrans Control |
| Port 21000 | udp | irtrans | IRTrans Control |