knownports / Ports 1024–1999 / Port 1521
Port1521
ncube-lmnCube License Manager
IANA has registered port 1521 to ncube-lm on TCP and UDP.
Registry entries
| Service | Protocols | Registered | Modified | RFCs | Other specs |
|---|---|---|---|---|---|
ncube-lm | TCPUDP | — | Feb 14, 2022 | — | — |
Where it sits in the registry
Port 1521 is one of 963 numbers with an assignment in ports 1024–1999 (98.7% of the range). 954 other numbers in the range are assigned on exactly the same transports, TCP and UDP, the usual pattern for older entries. The registry records no registration date for it, as for 865 other numbers in the range; dates were recorded mainly from 2002 on. IANA last modified the entry on February 14, 2022. No other number in the registry shares that modification date.
Status on each protocol
| Protocol | On port 1521 | Other numbers with the same status | Nearest with the same status |
|---|---|---|---|
| TCP | assigned to ncube-lm | 5,887 | 1520 atm-zip-office |
| UDP | assigned to ncube-lm | 5,500 | 1520 atm-zip-office |
| SCTP | no entry | 5,999 | 1520 atm-zip-office |
| DCCP | no entry | 6,080 | 1520 atm-zip-office |
5,273 other assigned numbers in the registry have exactly this combination across all four protocols.
The nearest assigned numbers
| Port | Service | Label | Protocols | Registered | Distance |
|---|---|---|---|---|---|
| 1518 | vpvd | Virtual Places Video data | TCPUDP | — | 3 |
| 1519 | vpvc | Virtual Places Video control | TCPUDP | — | 2 |
| 1520 | atm-zip-office | atm zip office | TCPUDP | — | 1 |
| 1522 | ricardo-lm | Ricardo North America License Manager | TCPUDP | — | 1 |
| 1523 | cichild-lm | cichild | TCPUDP | — | 2 |
| 1524 | ingreslock | ingres | TCPUDP | — | 3 |