So (the tld of Somalia) is a domain controlled by four domain name servers at nic.so having a total of seven IP numbers. All seven of them are on different IP networks.
Gov.so, org.so, net.so and com.so share name servers with this domain. 123go.so, rul.so, niuniu.so, apple.so, somaliembassyinkenya.so and at least 95 other hosts are subdomains to this domain. Pa.so, gor09don.so, ssq.so, 90s.so, iis.so and at least 95 other hosts are hosts under this domain. So.nl, so.ua, so.de, so.cc, so.pl and at least 106 other hosts are similar domain names.
Also check www.so.
Four of the five domains that use the name server c.nic.so use the three name servers a, b and c.nic.so together.