Robtex

Up: 212.106.206.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.106.206.0/25
Down right: 212.106.206.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.106.206.1	A+PTR	smtp1.jazztel.com
212.106.206.2	A	smtp2.jazztel.com
212.106.206.28	A	gis.jazztel.com
212.106.206.45	A+PTR	45.206.106.212.static.jazztel.es
212.106.206.63	A	cobertura.jazztel.com
212.106.206.75	A+PTR	75.206.106.212.static.jazztel.es
212.106.206.75	A	www.tarjetasjazzcard.com
212.106.206.77	A+PTR	77.206.106.212.static.jazztel.es
212.106.206.87	A	jazztelprepago.net
212.106.206.87	A	movilprepago.net
212.106.206.87	A	movilprepago.biz
212.106.206.91	A+PTR	91.206.106.212.static.jazztel.es
212.106.206.91	A	corporativo.jazztel.com
212.106.206.148	A+PTR	148.206.106.212.static.jazztel.es