Preso dalla curiosità mi sono messo a fare qualche ricerchina su whois. Ecco la lista dai gateway residenziali (sempre che siano stati coerenti nella scelta dei “netname”)

fabio@gnu:~$ for i in `seq -w 1 20`; do whois FASTWEB-RESIDENTIAL-$i -h whois.ripe.net | grep -A 1 inetnum; echo "--------------------"; done
inetnum: 213.140.22.64 - 213.140.22.79
netname: FASTWEB-RESIDENTIAL-01
--------------------
inetnum: 81.208.60.192 - 81.208.60.207
netname: FASTWEB-RESIDENTIAL-02
--------------------
inetnum: 62.101.126.208 - 62.101.126.223
netname: FASTWEB-RESIDENTIAL-03
--------------------
inetnum: 213.140.17.96 - 213.140.17.111
netname: FASTWEB-RESIDENTIAL-04
--------------------
inetnum: 81.208.36.80 - 81.208.36.95
netname: FASTWEB-RESIDENTIAL-05
--------------------
inetnum: 62.101.126.224 - 62.101.126.239
netname: FASTWEB-RESIDENTIAL-06
--------------------
inetnum: 81.208.74.176 - 81.208.74.191
netname: FASTWEB-RESIDENTIAL-07
--------------------
inetnum: 81.208.106.64 - 81.208.106.79
netname: FASTWEB-RESIDENTIAL-08
--------------------
inetnum: 213.140.6.96 - 213.140.6.111
netname: FASTWEB-RESIDENTIAL-09
--------------------
inetnum: 213.140.6.112 - 213.140.6.127
netname: FASTWEB-RESIDENTIAL-10
--------------------
inetnum: 213.156.52.96 - 213.156.52.111
netname: FASTWEB-RESIDENTIAL-11
--------------------
inetnum: 213.156.52.112 - 213.156.52.127
netname: FASTWEB-RESIDENTIAL-12
--------------------
--------------------
--------------------
[...]