Internet-Security.com TCP port 2628 details

TCP port 2628 is assigned to the DICT (Dictionary) protocol defined in RFC 2229.
The dictd server implements DICT and listens on 2628; a well-known public instance is dict.org:2628, which serves databases like WordNet and GCIDE.
Command-line clients such as the “dict” utility (from the dictd package on Linux/Unix) connect to DICT servers over port 2628 to fetch definitions.
GUI/Editor clients that support DICT on 2628 include GoldenDict, KDE’s KDict, and Emacs via the dictionary.el package.
Many Linux distributions deploy dictd on 2628 for LAN-wide dictionary services using FreeDict or WordNet databases.

TCP 2628