Robtex

Up: 185.39.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.39.84.0/23
Down right: 185.39.86.0/23

IP	Type	Hostname
185.39.85.4	A+PTR	ns1.purteldns.de
185.39.85.6	A	sip.mux.nu
185.39.85.7	A+PTR	fsk2.dus.purtel.com
185.39.85.7	A	deu3.purtel.com
185.39.85.9	A+PTR	www.purtel.com
185.39.85.9	A	purtel.com
185.39.85.14	A	voip.carpe.net
185.39.85.14	A	voxafon.de
185.39.85.15	A+PTR	openacs.purtel.com
185.39.85.15	A	avm-acs.purtel.com
185.39.85.42	A+PTR	fsk8.dus.purtel.com
185.39.85.131	A	db.purtel-test.com
185.39.86.4	A+PTR	ns2.purteldns.de
185.39.86.6	A+PTR	fsk1.fra.purtel.com
185.39.86.7	A+PTR	fsk2.fra.purtel.com
185.39.86.7	A	sip2.100054.purtel.com
185.39.86.9	A+PTR	fsk4.fra.purtel.com
185.39.86.9	A	sip.mux.nu
185.39.86.9	A	sip1.100041.purtel.com
185.39.86.17	PTR	stun.fra.purtel.com
185.39.86.17	A	stun.purtel.com
185.39.86.44	A+PTR	fsk8.fra.purtel.com