ns1.alltele.se has one IP number , which also has a corresponding reverse pointer. levnu.se, allt1.se, allt3.se, allt2.se, allt4.se and at least 64 other hosts use this as a nameserver. alltele.se is a domain controlled by two nameservers at alltele.se themselves. They are on different IP networks. Incoming mail for alltele.se is handled by three mailservers at softcom.dk. All of them are on different IP networks. alltele.se has one IP number. ns1.alltele.se is hosted on a server in Sweden.