Robtex

Up: 72.213.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 72.213.128.0/19
Down right: 72.213.160.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.213.128.160	A+PTR	ip72-213-128-160.ok.ok.cox.net
72.213.129.1	A+PTR	ip72-213-129-1.ok.ok.cox.net
72.213.129.113	A+PTR	ip72-213-129-113.ok.ok.cox.net
72.213.129.113	A	donkiiskila.com
72.213.129.113	A	weezul.net
72.213.129.138	A+PTR	ip72-213-129-138.ok.ok.cox.net
72.213.129.160	A+PTR	ip72-213-129-160.ok.ok.cox.net
72.213.130.190	A	donkiiskila.com
72.213.131.112	A+PTR	ip72-213-131-112.ok.ok.cox.net
72.213.131.158	A+PTR	ip72-213-131-158.ok.ok.cox.net
72.213.132.7	A	ip72-213-132-7.ok.ok.cox.net
72.213.132.85	A+PTR	ip72-213-132-85.ok.ok.cox.net
72.213.132.85	A	schornack.com
72.213.133.167	A	vinom.net
72.213.134.3	A	ip72-213-134-3.ok.ok.cox.net
72.213.134.28	A+PTR	ip72-213-134-28.ok.ok.cox.net
72.213.134.29	A+PTR	ip72-213-134-29.ok.ok.cox.net
72.213.134.30	A+PTR	ip72-213-134-30.ok.ok.cox.net
72.213.134.34	PTR	ip72-213-134-34.ok.ok.cox.net
72.213.135.21	A	ip72-213-135-21.ok.ok.cox.net
72.213.135.22	A	ip72-213-135-22.ok.ok.cox.net
72.213.135.34	A	ip72-213-135-34.ok.ok.cox.net
72.213.135.35	A	ip72-213-135-35.ok.ok.cox.net
72.213.135.65	A+PTR	ip72-213-135-65.ok.ok.cox.net
72.213.135.71	A	ip72-213-135-71.ok.ok.cox.net
72.213.135.86	A	ip72-213-135-86.ok.ok.cox.net
72.213.135.89	A	ip72-213-135-89.ok.ok.cox.net
72.213.135.134	A	ip72-213-135-134.ok.ok.cox.net
72.213.135.139	A	ip72-213-135-139.ok.ok.cox.net
72.213.135.145	A	ip72-213-135-145.ok.ok.cox.net
72.213.135.150	A	ip72-213-135-150.ok.ok.cox.net
72.213.135.220	A	ip72-213-135-220.ok.ok.cox.net
72.213.135.225	A	ip72-213-135-225.ok.ok.cox.net
72.213.135.229	A	ip72-213-135-229.ok.ok.cox.net
72.213.136.9	A	ip72-213-136-9.ok.ok.cox.net
72.213.136.14	A	ip72-213-136-14.ok.ok.cox.net
72.213.136.16	A	ip72-213-136-16.ok.ok.cox.net
72.213.136.17	A	ip72-213-136-17.ok.ok.cox.net
72.213.136.64	A+PTR	ip72-213-136-64.ok.ok.cox.net
72.213.136.71	A	ip72-213-136-71.ok.ok.cox.net
72.213.136.75	A	ip72-213-136-75.ok.ok.cox.net
72.213.136.93	A	ip72-213-136-93.ok.ok.cox.net
72.213.136.130	A+PTR	ip72-213-136-130.ok.ok.cox.net
72.213.136.137	A	ip72-213-136-137.ok.ok.cox.net
72.213.136.140	A	ip72-213-136-140.ok.ok.cox.net
72.213.136.150	A	ip72-213-136-150.ok.ok.cox.net
72.213.136.194	A+PTR	ip72-213-136-194.ok.ok.cox.net
72.213.136.203	A	ip72-213-136-203.ok.ok.cox.net
72.213.136.206	A	ip72-213-136-206.ok.ok.cox.net
72.213.136.208	A	ip72-213-136-208.ok.ok.cox.net
72.213.137.186	A+PTR	ip72-213-137-186.ok.ok.cox.net
72.213.137.190	A+PTR	ip72-213-137-190.ok.ok.cox.net
72.213.138.17	A	ip72-213-138-17.ok.ok.cox.net
72.213.138.29	PTR	ip72-213-138-29.ok.ok.cox.net
72.213.138.209	A	ip72-213-138-209.ok.ok.cox.net
72.213.139.108	A	ip72-213-139-108.ok.ok.cox.net
72.213.139.169	A+PTR	ip72-213-139-169.ok.ok.cox.net
72.213.140.246	A	mail.casadelamoore.com
72.213.142.57	A+PTR	ip72-213-142-57.ok.ok.cox.net
72.213.143.9	A	ip72-213-143-9.ok.ok.cox.net
72.213.143.12	A	ip72-213-143-12.ok.ok.cox.net
72.213.143.27	A	ip72-213-143-27.ok.ok.cox.net
72.213.143.32	A	ip72-213-143-32.ok.ok.cox.net
72.213.143.73	A	ip72-213-143-73.ok.ok.cox.net
72.213.143.82	A	ip72-213-143-82.ok.ok.cox.net
72.213.143.97	A	ip72-213-143-97.ok.ok.cox.net
72.213.143.120	A	ip72-213-143-120.ok.ok.cox.net
72.213.143.205	A	ip72-213-143-205.ok.ok.cox.net
72.213.143.229	A	ip72-213-143-229.ok.ok.cox.net
72.213.143.245	A	ip72-213-143-245.ok.ok.cox.net
72.213.144.204	A	mail.tulsatechsupport.net
72.213.144.248	A+PTR	ip72-213-144-248.ok.ok.cox.net
72.213.144.248	A	blueskiesokie.info
72.213.145.4	A+PTR	ip72-213-145-4.ok.ok.cox.net
72.213.145.124	A+PTR	ip72-213-145-124.ok.ok.cox.net
72.213.146.116	A+PTR	ip72-213-146-116.ok.ok.cox.net
72.213.146.116	A	lenfocenter.net
72.213.148.239	A+PTR	ip72-213-148-239.ok.ok.cox.net
72.213.149.130	A+PTR	ip72-213-149-130.ok.ok.cox.net
72.213.149.140	A	yetowncrier.com
72.213.149.167	A+PTR	ip72-213-149-167.ok.ok.cox.net
72.213.149.167	A	gibsonhh.info
72.213.150.118	A+PTR	ip72-213-150-118.ok.ok.cox.net
72.213.150.248	A	muckmuck.net
72.213.153.204	PTR	ip72-213-153-204.ok.ok.cox.net
72.213.153.238	A	ip72-213-153-238.ok.ok.cox.net
72.213.154.47	A	ip72-213-154-47.ok.ok.cox.net
72.213.154.169	A+PTR	ip72-213-154-169.ok.ok.cox.net
72.213.156.38	A+PTR	ip72-213-156-38.ok.ok.cox.net
72.213.156.78	A+PTR	ip72-213-156-78.ok.ok.cox.net
72.213.156.78	A	philcrockett.com
72.213.156.151	A+PTR	ip72-213-156-151.ok.ok.cox.net
72.213.157.240	PTR	ip72-213-157-240.ok.ok.cox.net
72.213.159.100	A+PTR	ip72-213-159-100.ok.ok.cox.net
72.213.159.118	A+PTR	ip72-213-159-118.ok.ok.cox.net
72.213.160.4	A	webmail2.mobilityplusok.com
72.213.160.74	A+PTR	ip72-213-160-74.ok.ok.cox.net
72.213.160.163	A	portal.rdavisproductions.com
72.213.162.26	A+PTR	ip72-213-162-26.ok.ok.cox.net
72.213.162.26	A	motllc.com
72.213.162.104	A+PTR	ip72-213-162-104.ok.ok.cox.net
72.213.163.243	A+PTR	ip72-213-163-243.ok.ok.cox.net
72.213.163.243	A	deesg.com
72.213.164.11	A	scottlohr.com
72.213.164.32	A+PTR	ip72-213-164-32.ok.ok.cox.net
72.213.164.68	A+PTR	ip72-213-164-68.ok.ok.cox.net
72.213.164.106	A+PTR	ip72-213-164-106.ok.ok.cox.net
72.213.164.106	A	rtamura.noip.me
72.213.165.246	A+PTR	ip72-213-165-246.ok.ok.cox.net
72.213.165.250	A+PTR	ip72-213-165-250.ok.ok.cox.net
72.213.167.180	A+PTR	ip72-213-167-180.ok.ok.cox.net
72.213.167.211	A	marcuus.com
72.213.168.144	A	ip72-213-168-144.ok.ok.cox.net
72.213.169.81	A+PTR	ip72-213-169-81.ok.ok.cox.net
72.213.170.165	A+PTR	ip72-213-170-165.ok.ok.cox.net
72.213.170.165	A	myaircastles.com
72.213.171.28	A+PTR	ip72-213-171-28.ok.ok.cox.net
72.213.173.194	A+PTR	ip72-213-173-194.ok.ok.cox.net
72.213.175.64	A+PTR	ip72-213-175-64.ok.ok.cox.net
72.213.175.106	PTR	ip72-213-175-106.ok.ok.cox.net
72.213.175.106	A	motllc.com
72.213.175.106	A	motllc.net
72.213.177.115	A+PTR	ip72-213-177-115.ok.ok.cox.net
72.213.177.115	A	mckenziepatten.com
72.213.177.169	A	rob2d2.com
72.213.179.210	A+PTR	ip72-213-179-210.ok.ok.cox.net
72.213.179.210	A	bry-omen.com
72.213.179.231	A	creativecom.no-ip.com
72.213.179.254	A+PTR	ip72-213-179-254.ok.ok.cox.net
72.213.180.4	A+PTR	ip72-213-180-4.ok.ok.cox.net
72.213.180.10	A+PTR	ip72-213-180-10.ok.ok.cox.net
72.213.181.186	PTR	ip72-213-181-186.ok.ok.cox.net
72.213.181.250	A+PTR	ip72-213-181-250.ok.ok.cox.net
72.213.181.250	A	stitt.me
72.213.182.98	A+PTR	ip72-213-182-98.ok.ok.cox.net
72.213.182.98	A	cliftongray.com
72.213.183.67	A	creativecom.no-ip.com
72.213.183.85	A	ip72-213-183-85.ok.ok.cox.net
72.213.184.13	A+PTR	ip72-213-184-13.ok.ok.cox.net
72.213.186.228	A+PTR	ip72-213-186-228.ok.ok.cox.net
72.213.187.133	A+PTR	ip72-213-187-133.ok.ok.cox.net
72.213.188.20	PTR	ip72-213-188-20.ok.ok.cox.net
72.213.189.189	A+PTR	ip72-213-189-189.ok.ok.cox.net
72.213.190.111	A+PTR	ip72-213-190-111.ok.ok.cox.net
72.213.191.113	A	volmernet.com