Robtex

Up: 72.221.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 72.221.0.0/18
Down right: 72.221.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.221.0.131	A	ataacec805e7a69.mm.pn.at.cox.net
72.221.4.15	PTR	wsip-72-221-4-15.dc.dc.cox.net
72.221.4.15	A	honestyandethics.com
72.221.4.15	A	easystonecenter.com
72.221.4.112	PTR	mail.br-envision.com
72.221.4.151	A+PTR	wsip-72-221-4-151.dc.dc.cox.net
72.221.4.151	A	mx.it-techservice.com
72.221.4.151	A	*.it-techservice.com
72.221.5.106	A+PTR	wsip-72-221-5-106.dc.dc.cox.net
72.221.5.106	A	washingtondoc.com
72.221.5.106	A	mail.norvarhealthservices.com
72.221.5.107	PTR	wsip-72-221-5-107.dc.dc.cox.net
72.221.5.215	A+PTR	wsip-72-221-5-215.dc.dc.cox.net
72.221.6.60	A	mail.rrtmail.com
72.221.6.60	A	mail2.wilbell.com
72.221.6.206	A+PTR	wsip-72-221-6-206.dc.dc.cox.net
72.221.6.206	A	myverisolv.com
72.221.7.3	A+PTR	wsip-72-221-7-3.dc.dc.cox.net
72.221.7.3	A	mail.jamaheatingandcooling.com
72.221.7.3	A	remote.jamaheatingandcooling.com
72.221.7.66	A	mail.systemsdefinition.com
72.221.8.2	A+PTR	ns01.fament.com
72.221.8.2	A	ns1.fament.com
72.221.8.3	PTR	mail.wisp-router.com
72.221.8.3	A	imail.fament.com
72.221.8.3	A	mail.signorellis.com
72.221.8.4	PTR	wsip-72-221-8-4.ks.ks.cox.net
72.221.8.6	PTR	wsip-72-221-8-6.ks.ks.cox.net
72.221.9.2	A+PTR	wsip-72-221-9-2.ks.ks.cox.net
72.221.9.2	A	ns2.fament.com
72.221.9.2	A	ns02.fament.com
72.221.12.213	A+PTR	wsip-72-221-12-213.dc.dc.cox.net
72.221.14.133	A+PTR	wsip-72-221-14-133.dc.dc.cox.net
72.221.14.133	A	odinwwcore.com
72.221.15.2	A+PTR	wsip-72-221-15-2.dc.dc.cox.net
72.221.19.4	A+PTR	ip72-221-19-4.ph.ph.cox.net
72.221.19.44	A	ip72-221-19-44.ph.ph.cox.net
72.221.19.101	A	ip72-221-19-101.ph.ph.cox.net
72.221.19.192	A	ip72-221-19-192.ph.ph.cox.net
72.221.19.250	A	ip72-221-19-250.ph.ph.cox.net
72.221.20.13	A	ip72-221-20-13.ph.ph.cox.net
72.221.20.106	A	ip72-221-20-106.ph.ph.cox.net
72.221.21.114	A+PTR	ip72-221-21-114.ph.ph.cox.net
72.221.21.199	PTR	ip72-221-21-199.ph.ph.cox.net
72.221.22.115	A+PTR	ip72-221-22-115.ph.ph.cox.net
72.221.24.219	A+PTR	ip72-221-24-219.ph.ph.cox.net
72.221.25.2	A+PTR	ip72-221-25-2.ph.ph.cox.net
72.221.26.10	A	ip72-221-26-10.ph.ph.cox.net
72.221.26.81	A	ip72-221-26-81.ph.ph.cox.net
72.221.26.84	A	ip72-221-26-84.ph.ph.cox.net
72.221.26.121	A	ip72-221-26-121.ph.ph.cox.net
72.221.28.101	A	ip72-221-28-101.ph.ph.cox.net
72.221.28.110	A	ex3b3k.com
72.221.28.216	A	ip72-221-28-216.ph.ph.cox.net
72.221.30.83	A	ip72-221-30-83.ph.ph.cox.net
72.221.30.188	A	ip72-221-30-188.ph.ph.cox.net
72.221.30.252	A	ip72-221-30-252.ph.ph.cox.net
72.221.31.20	A	peggycolemanphotography.com
72.221.31.20	A	mail.peggycolemanphotography.com
72.221.31.106	A	ip72-221-31-106.ph.ph.cox.net
72.221.31.145	A	ip72-221-31-145.ph.ph.cox.net
72.221.31.151	A	ip72-221-31-151.ph.ph.cox.net
72.221.31.159	A	ip72-221-31-159.ph.ph.cox.net
72.221.37.8	A	smug.cloud
72.221.43.69	A+PTR	ip72-221-43-69.ks.ks.cox.net
72.221.43.69	A	nwaserviceconnect.com
72.221.43.192	A+PTR	ip72-221-43-192.ks.ks.cox.net
72.221.45.80	A+PTR	ip72-221-45-80.ks.ks.cox.net
72.221.45.80	A	christophermelendez.com
72.221.46.49	PTR	ip72-221-46-49.ks.ks.cox.net
72.221.50.40	A	mail.rob20071.com
72.221.57.160	A+PTR	ip72-221-57-160.ks.ks.cox.net
72.221.59.110	A+PTR	ip72-221-59-110.ks.ks.cox.net
72.221.59.110	A	astoutlife.com
72.221.62.36	A+PTR	ip72-221-62-36.ks.ks.cox.net
72.221.62.100	A+PTR	ip72-221-62-100.ks.ks.cox.net
72.221.62.100	A	ecocycleshop.com
72.221.63.168	A+PTR	ip72-221-63-168.ks.ks.cox.net
72.221.64.0	A+PTR	ip72-221-64-0.ri.ri.cox.net
72.221.65.237	A+PTR	ip72-221-65-237.ri.ri.cox.net
72.221.66.21	PTR	ip72-221-66-21.ri.ri.cox.net
72.221.66.53	A+PTR	ip72-221-66-53.ri.ri.cox.net
72.221.67.174	A+PTR	ip72-221-67-174.ri.ri.cox.net
72.221.68.45	A+PTR	ip72-221-68-45.ri.ri.cox.net
72.221.68.184	PTR	ip72-221-68-184.ri.ri.cox.net
72.221.69.15	A	ip72-221-69-15.ri.ri.cox.net
72.221.69.65	A	ip72-221-69-65.ri.ri.cox.net
72.221.69.104	A	ip72-221-69-104.ri.ri.cox.net
72.221.69.126	A	ip72-221-69-126.ri.ri.cox.net
72.221.69.248	A	ip72-221-69-248.ri.ri.cox.net
72.221.71.169	A+PTR	ip72-221-71-169.ri.ri.cox.net
72.221.71.196	A	cloudio-xi.com
72.221.73.100	A	ip72-221-73-100.ri.ri.cox.net
72.221.75.84	PTR	ip72-221-75-84.ri.ri.cox.net
72.221.76.216	A	avriam.com
72.221.77.11	A	ip72-221-77-11.ri.ri.cox.net
72.221.77.12	A	ip72-221-77-12.ri.ri.cox.net
72.221.77.14	A	ip72-221-77-14.ri.ri.cox.net
72.221.77.15	A	ip72-221-77-15.ri.ri.cox.net
72.221.77.129	A+PTR	ip72-221-77-129.ri.ri.cox.net
72.221.77.130	A+PTR	ip72-221-77-130.ri.ri.cox.net
72.221.77.131	A+PTR	ip72-221-77-131.ri.ri.cox.net
72.221.77.133	A	ip72-221-77-133.ri.ri.cox.net
72.221.78.132	A	ip72-221-78-132.ri.ri.cox.net
72.221.79.85	A+PTR	ip72-221-79-85.ri.ri.cox.net
72.221.79.233	A+PTR	ip72-221-79-233.ri.ri.cox.net
72.221.80.119	A+PTR	ip72-221-80-119.ri.ri.cox.net
72.221.81.9	A+PTR	ip72-221-81-9.ri.ri.cox.net
72.221.81.23	A+PTR	ip72-221-81-23.ri.ri.cox.net
72.221.82.243	A	ip72-221-82-243.ri.ri.cox.net
72.221.83.21	A	ip72-221-83-21.ri.ri.cox.net
72.221.84.159	PTR	ip72-221-84-159.ri.ri.cox.net
72.221.84.192	A+PTR	ip72-221-84-192.ri.ri.cox.net
72.221.84.254	A	ip72-221-84-254.ri.ri.cox.net
72.221.85.146	A	james.bluegrass.net
72.221.86.2	A+PTR	ip72-221-86-2.ri.ri.cox.net
72.221.86.2	A	m-5.net
72.221.86.2	A	mail.m-5.net
72.221.86.21	A+PTR	ip72-221-86-21.ri.ri.cox.net
72.221.86.172	A+PTR	ip72-221-86-172.ri.ri.cox.net
72.221.87.29	A+PTR	ip72-221-87-29.ri.ri.cox.net
72.221.88.56	A+PTR	ip72-221-88-56.ri.ri.cox.net
72.221.88.99	A+PTR	ip72-221-88-99.ri.ri.cox.net
72.221.88.202	PTR	ip72-221-88-202.ri.ri.cox.net
72.221.88.202	A	aamcomputing.com
72.221.89.61	A+PTR	ip72-221-89-61.ri.ri.cox.net
72.221.89.109	PTR	ip72-221-89-109.ri.ri.cox.net
72.221.90.52	A+PTR	ip72-221-90-52.ri.ri.cox.net
72.221.90.52	A	tullydoran.net
72.221.90.152	A+PTR	ip72-221-90-152.ri.ri.cox.net
72.221.90.155	PTR	ip72-221-90-155.ri.ri.cox.net
72.221.92.27	A	orszulak.net
72.221.92.43	A+PTR	ip72-221-92-43.ri.ri.cox.net
72.221.92.57	A	ip72-221-92-57.ri.ri.cox.net
72.221.92.179	A+PTR	ip72-221-92-179.ri.ri.cox.net
72.221.92.215	A+PTR	ip72-221-92-215.ri.ri.cox.net
72.221.94.105	A+PTR	ip72-221-94-105.ri.ri.cox.net
72.221.95.63	A+PTR	ip72-221-95-63.ri.ri.cox.net
72.221.95.151	A+PTR	ip72-221-95-151.ri.ri.cox.net
72.221.96.34	A+PTR	ip72-221-96-34.ri.ri.cox.net
72.221.96.241	A+PTR	ip72-221-96-241.ri.ri.cox.net
72.221.97.24	A+PTR	ip72-221-97-24.ri.ri.cox.net
72.221.97.24	A	troop27.info
72.221.98.49	A+PTR	ip72-221-98-49.ri.ri.cox.net
72.221.99.0	A+PTR	ip72-221-99-0.ri.ri.cox.net
72.221.99.5	A	ip72-221-99-5.ri.ri.cox.net
72.221.99.21	A	ip72-221-99-21.ri.ri.cox.net
72.221.99.60	A	ip72-221-99-60.ri.ri.cox.net
72.221.99.158	A	ip72-221-99-158.ri.ri.cox.net
72.221.99.161	A	ip72-221-99-161.ri.ri.cox.net
72.221.99.169	A	ip72-221-99-169.ri.ri.cox.net
72.221.99.207	A	ip72-221-99-207.ri.ri.cox.net
72.221.100.7	A	ip72-221-100-7.ri.ri.cox.net
72.221.100.157	A+PTR	ip72-221-100-157.ri.ri.cox.net
72.221.100.159	A+PTR	ip72-221-100-159.ri.ri.cox.net
72.221.101.114	A+PTR	ip72-221-101-114.ri.ri.cox.net
72.221.103.5	A	ip72-221-103-5.ri.ri.cox.net
72.221.103.12	A	ip72-221-103-12.ri.ri.cox.net
72.221.103.16	A	ip72-221-103-16.ri.ri.cox.net
72.221.103.18	A	ip72-221-103-18.ri.ri.cox.net
72.221.103.128	A+PTR	ip72-221-103-128.ri.ri.cox.net
72.221.103.130	A+PTR	ip72-221-103-130.ri.ri.cox.net
72.221.103.131	A+PTR	ip72-221-103-131.ri.ri.cox.net
72.221.103.136	A	ip72-221-103-136.ri.ri.cox.net
72.221.105.110	A+PTR	ip72-221-105-110.ri.ri.cox.net
72.221.106.20	A+PTR	ip72-221-106-20.ri.ri.cox.net
72.221.106.26	A	ip72-221-106-26.ri.ri.cox.net
72.221.106.177	A+PTR	ip72-221-106-177.ri.ri.cox.net
72.221.106.177	A	iagrelax.com
72.221.108.192	PTR	ip72-221-108-192.ri.ri.cox.net
72.221.110.248	A	ip72-221-110-248.ri.ri.cox.net
72.221.111.24	PTR	ip72-221-111-24.ri.ri.cox.net
72.221.111.48	PTR	ip72-221-111-48.ri.ri.cox.net
72.221.111.180	A+PTR	ip72-221-111-180.ri.ri.cox.net
72.221.114.60	A+PTR	ip72-221-114-60.ri.ri.cox.net
72.221.114.68	A+PTR	ip72-221-114-68.ri.ri.cox.net
72.221.114.138	A	ip72-221-114-138.ri.ri.cox.net
72.221.115.191	A+PTR	ip72-221-115-191.ri.ri.cox.net
72.221.116.27	PTR	ip72-221-116-27.ri.ri.cox.net
72.221.116.27	A	smopes.net
72.221.118.245	A+PTR	ip72-221-118-245.ri.ri.cox.net
72.221.119.23	A+PTR	ip72-221-119-23.ri.ri.cox.net
72.221.119.83	A+PTR	ip72-221-119-83.ri.ri.cox.net
72.221.119.83	A	burgensisters.com
72.221.119.99	A+PTR	ip72-221-119-99.ri.ri.cox.net
72.221.119.235	A	ip72-221-119-235.ri.ri.cox.net
72.221.120.12	A+PTR	ip72-221-120-12.ri.ri.cox.net
72.221.121.147	A+PTR	ip72-221-121-147.ri.ri.cox.net
72.221.122.24	A+PTR	ip72-221-122-24.ri.ri.cox.net
72.221.122.186	A+PTR	ip72-221-122-186.ri.ri.cox.net
72.221.122.200	A+PTR	ip72-221-122-200.ri.ri.cox.net
72.221.124.78	A+PTR	ip72-221-124-78.ri.ri.cox.net
72.221.125.45	A	ip72-221-125-45.ri.ri.cox.net
72.221.126.103	A	ip72-221-126-103.ri.ri.cox.net
72.221.126.175	A+PTR	ip72-221-126-175.ri.ri.cox.net
72.221.126.182	A+PTR	ip72-221-126-182.ri.ri.cox.net
72.221.127.56	A+PTR	ip72-221-127-56.ri.ri.cox.net
72.221.127.56	A	mickc82.com