Port 4048
In live entertainment systems, port 4048 is used by DDP.
udp/4048
DDP — DDP data and control
3waylabs' minimal UDP protocol for pushing pixel data at LED controllers, using a ten byte header with an offset and a length so a display larger than one packet can be written in pieces. It is the usual choice when DMX universe boundaries get in the way of a high pixel count.
Check it from the command line
npx showstack port 4048
Not what you were looking for?
If you know something else uses port 4048, tell us. Adding it is one file.