Robtex

Up: 87.118.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 87.118.144.0/22
Down right: 87.118.148.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.118.145.49	A+PTR	87-118-145-49.ip.btc-net.bg
87.118.145.239	A+PTR	87-118-145-239.ip.btc-net.bg
87.118.145.255	PTR	87-118-145-255.ip.btc-net.bg
87.118.147.19	PTR	87-118-147-19.ip.btc-net.bg
87.118.147.93	A+PTR	87-118-147-93.ip.btc-net.bg
87.118.147.212	PTR	87-118-147-212.ip.btc-net.bg
87.118.147.243	A	87-118-147-243.ip.btc-net.bg
87.118.147.255	PTR	87-118-147-255.btc-net.bg
87.118.150.30	A	web.galileobg.com
87.118.150.34	PTR	album0.album.bg
87.118.150.35	PTR	album0.album.bg
87.118.150.36	PTR	album0.album.bg
87.118.150.40	PTR	album0.album.bg
87.118.150.41	PTR	album0.album.bg
87.118.150.42	PTR	album0.album.bg
87.118.150.43	PTR	album0.album.bg
87.118.150.58	PTR	mail.aqx-technologies.ch
87.118.150.59	PTR	webmail.aqx-technologies.ch
87.118.150.61	A	www.aqx-technologies.ch
87.118.150.67	A	ice.ectel.com
87.118.150.82	PTR	www.conquiztador.bg
87.118.150.102	A+PTR	xch.egis.bg
87.118.150.103	A+PTR	mail2.egis.bg
87.118.150.137	PTR	wf.itdnet.net
87.118.150.138	A+PTR	wf.itdnet.net
87.118.150.139	PTR	wf.itdnet.net
87.118.150.140	PTR	wf.itdnet.net
87.118.150.141	A	wf.itdnet.net
87.118.150.204	PTR	derpart24.bg
87.118.150.206	PTR	mail.dertour.bg
87.118.150.227	A	wm.multimedia.bg
87.118.150.228	PTR	mail.multimedia.bg
87.118.150.228	A	mail.ipfavorit.com
87.118.150.228	A	mail.bwsf-bg.org
87.118.150.233	A	wsg2013.com
87.118.150.233	A	begso.com
87.118.150.234	A+PTR	mail.bgweb.biz
87.118.150.234	A	portal.bgweb.biz
87.118.150.242	A	office.multimedia.bg
87.118.151.83	PTR	83.lab.itdnet.net