Robtex

Up: 208.87.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.87.20.0/23
Down right: 208.87.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.87.20.21	A+PTR	static20-21.netcelerate.net
208.87.20.23	A+PTR	static20-23.netcelerate.net
208.87.20.71	A+PTR	static20-71.netcelerate.net
208.87.20.137	A	mail.grassroottechnologies.com
208.87.20.137	A	mail.grassroottech.com
208.87.20.145	A+PTR	cx3-lin145.netcelerate.net
208.87.20.145	A	netcelerate.net
208.87.20.147	PTR	shuttle.netcelerate.net
208.87.20.149	A+PTR	static20-149.netcelerate.net
208.87.20.150	A	cx3-lin150.netcelerate.net
208.87.20.152	A+PTR	static20-152.netcelerate.net
208.87.20.159	A+PTR	static20-159.netcelerate.net
208.87.20.164	PTR	ncl-prp-mrb09.netcelerate.net
208.87.20.168	A	remote.netcelerate.com
208.87.20.169	PTR	static20-169.netcelerate.net
208.87.20.169	A	webmail.netcelerate.com
208.87.20.170	A+PTR	cx3-lin170.netcelerate.net
208.87.20.171	A	static20-171.netcelerate.net
208.87.20.172	A	ns2.dotality.com
208.87.20.180	A	mailcelerate.com
208.87.20.181	A	mail2.upside-ventures.com
208.87.20.181	A	mail.upside-ventures.com
208.87.20.181	A	mail.upsideventures.com
208.87.20.190	PTR	exchange.netcelerate.com
208.87.20.190	A	quitsmokingottawa.com
208.87.20.190	A	omegalaser.ca
208.87.20.191	PTR	exchange.netcelerate.com
208.87.20.192	PTR	exchange.netcelerate.com
208.87.20.192	A	ns12.netcelerate.com
208.87.20.192	A	nospam.netcelerate.com
208.87.20.193	A+PTR	exchange.netcelerate.com
208.87.20.194	PTR	static20-194.netcelerate.net
208.87.20.194	A	mail.cmuc.ca
208.87.20.197	PTR	static20-197.netcelerate.net
208.87.20.197	A	mail2.upsidestyle.com
208.87.20.197	A	businessvoipcanada.com
208.87.20.198	PTR	static20-198.netcelerate.net
208.87.20.199	PTR	static20-199.netcelerate.net
208.87.20.200	A+PTR	ex3.netcelerate.com
208.87.20.201	PTR	static20-201.netcelerate.net
208.87.20.201	A	antispam.netcelerate.com
208.87.20.203	A	static20-203.netcelerate.net
208.87.20.204	A+PTR	static20-204.netcelerate.net
208.87.20.207	PTR	static20-207.netcelerate.net
208.87.20.207	A	assp.netcelerate.com
208.87.20.219	A+PTR	static20-219.netcelerate.net
208.87.20.221	A+PTR	static20-221.netcelerate.net
208.87.20.235	A+PTR	static20-235.netcelerate.net
208.87.20.235	A	ns1.netcelerate.com
208.87.20.235	A	ns3.netcelerate.net
208.87.20.236	A+PTR	ns2.netcelerate.com
208.87.20.236	A	ns2.netcelerate.net
208.87.20.236	A	static20-236.netcelerate.net
208.87.20.241	PTR	speedtest.netcelerate.net
208.87.20.245	PTR	pbxdev150.netcelerate.net
208.87.20.252	A+PTR	pbxd5.netcelerate.net
208.87.21.50	A+PTR	static21-50.netcelerate.net
208.87.21.50	A	dotality.com
208.87.21.132	A	ns11.netcelerate.net
208.87.21.132	A	static21-132.netcelerate.net
208.87.21.161	A+PTR	static21-161.netcelerate.net
208.87.21.161	A	mail.medicom.ca
208.87.21.161	A	mail.safegauze.ca
208.87.21.163	A	mail.gsph.com
208.87.21.166	A+PTR	static21-166.netcelerate.net
208.87.21.205	PTR	static21-205.netcelerate.net
208.87.21.205	A	medicom.com
208.87.21.205	A	safeseal.ca
208.87.21.209	A	webmail.medicom.ca
208.87.21.233	A+PTR	static21-233.netcelerate.net
208.87.21.233	A	www.bhembassy.ca
208.87.22.4	A+PTR	dynamic22-4.netcelerate.net
208.87.22.5	PTR	mail.ocri.ca
208.87.22.5	A	owa.ocri.ca
208.87.22.5	A	mail.ornec.ca
208.87.22.6	PTR	dynamic22-6.netcelerate.net
208.87.22.6	A	zone5ive.com
208.87.22.11	A	dynamic22-11.netcelerate.net
208.87.22.13	PTR	richardmikrotik.dyn.netcelerate.net
208.87.22.13	A	ns3.koallo.ca
208.87.22.14	A+PTR	mail.investottawa.ca
208.87.22.14	A	mail.ocri.ca
208.87.22.17	A+PTR	mail.danawares.com
208.87.22.17	A	dynamic22-17.netcelerate.net
208.87.22.17	A	ftp.danawares.com
208.87.22.19	PTR	dynamic22-19.netcelerate.net
208.87.22.19	A	mx1nc.jsitelecom.com
208.87.22.21	PTR	hinton.dyn.netcelerate.net
208.87.22.21	A	mx2nc.jsitelecom.com
208.87.22.66	A	dynamic22-66.netcelerate.net
208.87.22.150	A	dynamic22-150.netcelerate.net
208.87.22.164	A	mail.onfe-rope.ca
208.87.22.197	A	mail.omnichinasourcing.com
208.87.22.197	A	mail.kaytronics.com
208.87.23.5	PTR	mail.medicom.ca
208.87.23.5	PTR	mail.amdritmed.com
208.87.23.5	A	mail.safeshield.ca
208.87.23.42	A	sfa.grcarchitects.com
208.87.23.134	A	dynamic23-134.netcelerate.net
208.87.23.166	A	dynamic23-166.netcelerate.net
208.87.23.173	A	dynamic23-173.netcelerate.net
208.87.23.190	A+PTR	dynamic23-190.netcelerate.net
208.87.23.240	A	gw.dmsolutions.ca
208.87.23.250	A+PTR	dynamic23-250.netcelerate.net
208.87.23.250	A	vivierpharma.net
208.87.23.250	A	vivierskin.org