I thought some of you might find this
LIST useful.
Here are some examples:
10-19
10 TCP UDP Unassigned
11 TCP Active Users
Unix TCP systat. RFC 866.
12 TCP UDP Unassigned
13 TCP UDP Daytime
RFC 867.
14 TCP UDP Unassigned
15 TCP UDP Unassigned
Unix netstat
16 TCP UDP Unassigned
17 TCP UDP Quote of the Day
Unix qotd. RFC 865.
18 TCP UDP Message Send Protocol and Remote Write Protocol (RWP)
RFC 1312 and RFC 1756.
19 TCP UDP Character Generator Protocol
RFC 864.
20-29
20 TCP File Transfer - FTP data
21 TCP File Transfer - FTP control
22 TCP SSH Remote Login Protocol
22 UDP pcAnywhere
23 TCP Telnet
24 TCP UDP private mail systems
25 TCP Simple Mail Transfer Protocol (SMTP)
RFC 821.
26 TCP UDP Unassigned
27 TCP UDP ESMTP
POP mail service of SLMail.
28 TCP UDP Unassigned
29 TCP UDP MSG ICP
30-39
30 TCP UDP Unassigned
31 TCP UDP MSG Authentication
32 TCP UDP Unassigned
33 TCP UDP Display Support Protocol
34 TCP UDP Unassigned
35 TCP UDP private printer servers
36 TCP UDP Unassigned
37 TCP UDP Time Protocol
RFC 868.
38 TCP UDP Route Access Protocol (RAP)
RFC 1476.
39 UDP Resource Location Protocol
RFC 887.
40-49
40 TCP UDP Unassigned
41 TCP UDP Graphics
42 UDP Host Name Server - Microsoft WINS
43 TCP WHOIS
Also known as NICNAME. RFC 954.
44 TCP MPM FLAGS Protocol
45 TCP Message Processing Module (receive)
46 TCP Message Processing Module (send)
47 TCP UDP NI FTP
48 TCP UDP Digital Audit Daemon
49 TCP Login Host Protocol
Also known as TACACS. RFC 927 and RFC 1492.