Robtex

Up: 77.72.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 77.72.64.0/21
Down right: 77.72.72.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.72.70.241	A	autodiscover.businesslogic.ch
77.72.72.34	A+PTR	b.ns.ie
77.72.72.34	A	b.iedr.ie
77.72.72.34	A	a.ienum.ie
77.72.72.44	A+PTR	a.ns.ie
77.72.72.44	A	a.iedr.ie
77.72.74.35	A	z.ienum.ie
77.72.74.131	A	smtp1.domainregistry.ie
77.72.74.132	A	ns1.domainregistry.ie
77.72.74.132	A	ns0.domainregistry.ie
77.72.74.133	A	ns0.iedr.ie
77.72.74.144	A	console.iedr.ie
77.72.74.145	A	whois.iedr.ie
77.72.74.145	A	whois.domainregistry.ie
77.72.74.147	PTR	www2.iedr.ie
77.72.74.147	A	www.irishwhois.ie
77.72.74.171	A	www.weare.ie
77.72.74.172	A	weare.ie
77.72.76.23	A+PTR	ns3.iedr.ie
77.72.76.24	A+PTR	titan02.iedr.ie
77.72.76.24	A	titan02.domainregistry.ie
77.72.78.66	A+PTR	titan01.iedr.ie
77.72.78.66	A	smtp2.domainregistry.ie
77.72.78.66	A	smtp.domainregistry.ie
77.72.78.88	A+PTR	ns2.iedr.ie
77.72.78.91	A+PTR	a.ns.ie
77.72.78.91	A	a.iedr.ie