Robtex

Up: 216.135.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 216.135.160.0/22
Down right: 216.135.164.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.135.160.186	PTR	wan-vc8f85q.oak.biz.mindspring.com
216.135.161.226	A+PTR	user-vc8f8f2.biz.mindspring.com
216.135.161.236	A	user-vc8f8fc.biz.mindspring.com
216.135.161.237	A	user-vc8f8fd.biz.mindspring.com
216.135.161.243	A+PTR	user-vc8f8fj.biz.mindspring.com
216.135.162.12	A	user-vc8f8gc.biz.mindspring.com
216.135.162.17	A+PTR	user-vc8f8gh.biz.mindspring.com
216.135.162.50	A+PTR	user-vc8f8hi.biz.mindspring.com
216.135.162.50	A	w2cs.com
216.135.162.118	A	user-vc8f8jm.biz.mindspring.com
216.135.162.127	A	user-vc8f8jv.biz.mindspring.com
216.135.162.203	A+PTR	user-vc8f8mb.biz.mindspring.com
216.135.162.218	A	mail.rmiller.com
216.135.162.220	A	smtp.storm-law.com
216.135.162.220	A	mail.storm-law.com
216.135.162.220	A	storm-law.com
216.135.162.242	PTR	mail.responsiblemetal.com
216.135.163.5	A	mail.managing-money.org
216.135.163.5	A	smtp.housing-information.org
216.135.163.5	A	mail.housing-information.org
216.135.163.77	A	user-vc8f8qd.biz.mindspring.com
216.135.163.114	A	user-vc8f8ri.biz.mindspring.com
216.135.163.118	A	user-vc8f8rm.biz.mindspring.com
216.135.163.120	A	user-vc8f8ro.biz.mindspring.com
216.135.163.155	A+PTR	user-vc8f8sr.biz.mindspring.com
216.135.164.131	PTR	mail.woodberryevents.com
216.135.164.230	A	user-vc8f976.biz.mindspring.com
216.135.165.10	A	user-vc8f98a.biz.mindspring.com
216.135.165.40	A	user-vc8f998.biz.mindspring.com
216.135.165.92	A	user-vc8f9as.biz.mindspring.com
216.135.165.144	A	user-vc8f9cg.biz.mindspring.com
216.135.166.2	PTR	matisse.net
216.135.166.9	PTR	ns2.matisse.net
216.135.166.214	A	user-vc8f9mm.biz.mindspring.com
216.135.167.88	A	user-vc8f9qo.biz.mindspring.com
216.135.167.165	A	user-vc8f9t5.biz.mindspring.com
216.135.167.228	A	user-vc8f9v4.biz.mindspring.com
216.135.167.246	A	user-vc8f9vm.biz.mindspring.com