Robtex

Up: 87.192.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 87.192.84.0/23
Down right: 87.192.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.192.84.1	A	dn04-01.fe-0-0-1-150.rtr.imagine.ie
87.192.84.1	A	dn04-fe-0-0-1-150-guinness.irishbroadband.ie
87.192.85.33	A	dn06-fe-0-0-1-738-ballymun.irishbroadband.ie
87.192.85.37	A	dn67-ge-1-3-0-160-esbfinglasm50.irishbroadband.ie
87.192.85.38	PTR	mail1.iecomputersystems.ie
87.192.85.38	A	mxrecordtest.com
87.192.85.38	A	mail1.lirsoftware.com
87.192.85.41	PTR	fe-0-0-1-160.ballymun.net.imagine.ie
87.192.85.41	A	dn37-fe-0-0-1-160-rogersonsquay.irishbroadband.ie
87.192.85.41	A	dn37-01.fe-0-0-1-160.rtr.imagine.ie
87.192.85.45	A+PTR	dn37-01.fe-0-0-1-160.rtr.imagine.ie
87.192.85.45	A	dn37-fe-0-0-1-160-rogersonsquay.irishbroadband.ie
87.192.85.53	PTR	dn43-01.fe-0-0-1-160.rtr.imagine.ie
87.192.85.53	A	dn23-fe-0-0-1-160-ballymount.irishbroadband.ie
87.192.85.65	A+PTR	dn01-ge-0-2-0-160-rte.irishbroadband.ie
87.192.85.65	A+PTR	dn18-fe-0-0-1-160-atrium.irishbroadband.ie
87.192.85.65	A+PTR	dn01-01.ge-0-2-0-160.rtr.imagine.ie
87.192.85.129	A	dn18-fe-0-0-1-160-atrium.irishbroadband.ie
87.192.86.44	A	webmail2.securenet.ie
87.192.86.44	A	mail.itsystems.ie
87.192.86.193	A	ty01-fe-0-0-1-177-toontina.irishbroadband.ie
87.192.87.1	A	ce03-01.fe-0-0-1-177.rtr.imagine.ie
87.192.87.33	A	ty01-fe-0-0-1-177-toontina.irishbroadband.ie
87.192.87.193	A+PTR	dn08-01.ge-1-3-0-160.rtr.imagine.ie
87.192.87.193	A	dn08-ge-1-3-0-160-belmont.irishbroadband.ie