Here are some appropriate port numbers:
% egrep uucp /etc/services
uucp-path 117/udp # UUCP Path Service
uucp-path 117/tcp # UUCP Path Service
uucp 540/udp # uucpd
uucp 540/tcp # uucpd
uucp-rlogin 541/udp # uucp-rlogin
uucp-rlogin 541/tcp # uucp-rlogin
suucp 4031/udp # UUCP over SSL
suucp 4031/tcp # UUCP over SSL
Erik