Well known ports, 1000 to 1023

Ports 0 to 999 Ports 1024 to 1099

Links: IANA port assignments.

Port Transport Protocol
1000 cadlock2.
1001
-
1007
  
1008 Sun Solaris?
1009  
1010 surf.
1011
-
1020
  
1021 RFC 3692-style Experiment 1.
1022 RFC 3692-style Experiment 2.
1023 reserved.

Ports 0 to 999 Ports 1024 to 1099