OS X: How to lock down these frivolous protocols!
You can find more details about these services in SpeedGuide's Port Database or the IANA Service Port Registry:


ndl-aas/3128
dec_dlm/625


AFAIK neither port is used by OS X out of the box, so you probably have installed some additional stuff on your own (3128 is also used by squid for instance).

To check for processes actively listening on these ports, you can use lsof -i :3128 and lsof -i :625.