nmap localhost -p 100-110 -P0

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2006-09-28 23:59 EEST
Interesting ports on LARS (127.0.0.1):
PORT    STATE  SERVICE
100/tcp closed newacct
101/tcp closed hostname
102/tcp closed iso-tsap
103/tcp closed gppitnp
104/tcp closed acr-nema
105/tcp closed csnet-ns
106/tcp closed pop3pw
107/tcp closed rtelnet
108/tcp closed snagas
109/tcp closed pop2
110/tcp closed pop3

Nmap finished: 1 IP address (1 host up) scanned in 0.021 seconds