Robtex

Up: 212.56.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 212.56.0.0/21
Down right: 212.56.8.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.56.0.3	PTR	vl107.sof-003-access-13.interoute.net
212.56.1.58	PTR	mail.brodsoft.com
212.56.1.62	A	bulgare.org
212.56.1.62	A	mail.costabulgara.com
212.56.1.62	A	ns1.archadia.net
212.56.1.98	PTR	jewel.el-soft.com
212.56.1.98	A	www.alucom-bg.com
212.56.1.98	A	alucom-bg.com
212.56.1.203	PTR	mail.orchidholdings.bg
212.56.2.12	PTR	www.piraeusbank.bg
212.56.2.51	A	dimitrovpetrov.com
212.56.2.51	A	mail.dimitrovpetrov.com
212.56.4.3	PTR	router2.bulins.bg
212.56.4.10	A	ns.bulins.bg
212.56.4.10	A	ns.bulins.com
212.56.4.11	A	db.carhistory.bg
212.56.4.11	A	carhistory.bg
212.56.4.20	A+PTR	mail.bulins.bg
212.56.4.20	A	mail.bulins.com
212.56.4.56	A	bulins.eu
212.56.4.56	A	bulins.com
212.56.4.56	A	bulins.bg
212.56.4.57	PTR	inventory.bulins.bg
212.56.4.111	A	wwwins.bulins.bg
212.56.5.50	A+PTR	host.marinov.us
212.56.5.50	A	*.marinov.us
212.56.5.50	A	c.zulu.bg
212.56.6.0	PTR	net212.pasat.bg
212.56.6.96	PTR	212-56-6-96.pasat.bg
212.56.6.162	A+PTR	ec1.aubg.bg
212.56.6.166	A+PTR	ec2.aubg.bg
212.56.7.97	A+PTR	seg.fl.tpnbg.net
212.56.7.98	A+PTR	sef.fl.tpnbg.net
212.56.7.99	A	host3.fl.tpnbg.net
212.56.7.103	A	host7.fl.tpnbg.net
212.56.7.113	A	tpn-koremb.tpnbg.net
212.56.7.114	A	koremb-tpn.tpnbg.net
212.56.7.148	A	post.predistic.com
212.56.7.217	A+PTR	ari1.tpnbg.net
212.56.7.218	A+PTR	ari2.tpnbg.net
212.56.7.219	A	ari3.tpnbg.net
212.56.7.220	A	ari4.tpnbg.net
212.56.13.2	PTR	mx.ibs.bg
212.56.13.161	A	bdch1.tpnbg.net
212.56.13.162	A	bdch2.tpnbg.net
212.56.13.163	A+PTR	bdch3.tpnbg.net
212.56.13.164	A+PTR	bdch4.tpnbg.net
212.56.13.203	PTR	ns.zdrave.net
212.56.13.204	PTR	www.intelday.com
212.56.13.204	A	zahorata.net
212.56.13.204	A	srzi.bg
212.56.13.208	A+PTR	mail.zdrave.net
212.56.13.208	A	mx1.zdrave.net
212.56.13.209	A+PTR	mail.intera-x.com
212.56.13.209	A	mail.ggfunds.org
212.56.13.210	PTR	mail.intelday.com
212.56.14.74	A	dkc.iservice.bg
212.56.15.7	A	ooloop.tpnbg.net
212.56.15.30	A	swch67.tpnbg.net
212.56.15.139	A	ns.sofia.bulgartabac.bg
212.56.15.164	A	mail.careasap.com
212.56.15.164	A	careasap.com
212.56.15.178	A+PTR	mail2.ccarebg.com
212.56.15.178	A	mail2.customercarebg.com
212.56.15.193	PTR	vgw.tpnbg.net
212.56.15.203	PTR	mail.sweco.bg