Robtex

Up: 67.21.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 67.21.172.0/23
Down right: 67.21.174.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
67.21.172.197	A+PTR	ns1.corelinkdc.net
67.21.172.198	A+PTR	ns2.corelinkdc.net
67.21.173.1	PTR	1.173.21.67.available.zayo.com
67.21.173.2	A	ca-dstreet-cuda4-c9a-2.snbrca.adelphia.net
67.21.173.3	PTR	3.173.21.67.available.zayo.com
67.21.173.5	A	ca-dstreet-cuda4-c9a-5.snbrca.adelphia.net
67.21.173.6	A	ca-dstreet-cuda4-c9a-6.snbrca.adelphia.net
67.21.173.7	PTR	7.173.21.67.static.corelink.com
67.21.173.8	PTR	8.173.21.67.available.zayo.com
67.21.173.9	PTR	9.173.21.67.available.zayo.com
67.21.173.9	A	ca-dstreet-cuda4-c9a-9.snbrca.adelphia.net
67.21.173.10	PTR	10.173.21.67.available.zayo.com
67.21.173.12	PTR	12.173.21.67.static.corelink.com
67.21.173.12	A	ca-dstreet-cuda4-c9a-12.snbrca.adelphia.net
67.21.173.13	A+PTR	smtp-relay.homepipe.net
67.21.173.15	PTR	15.173.21.67.static.corelink.com
67.21.173.16	PTR	16.173.21.67.static.corelink.com
67.21.173.17	A	ca-dstreet-cuda4-c9a-17.snbrca.adelphia.net
67.21.173.20	A	ca-dstreet-cuda4-c9a-20.snbrca.adelphia.net
67.21.173.21	PTR	21.173.21.67.available.zayo.com
67.21.173.25	PTR	25.173.21.67.available.zayo.com
67.21.173.27	PTR	27.173.21.67.available.zayo.com
67.21.173.31	PTR	31.173.21.67.available.zayo.com
67.21.173.32	PTR	32.173.21.67.available.zayo.com
67.21.173.33	PTR	33.173.21.67.available.zayo.com
67.21.173.33	A	ca-dstreet-cuda4-c9a-33.snbrca.adelphia.net
67.21.173.34	PTR	34.173.21.67.available.zayo.com
67.21.173.35	PTR	35.173.21.67.available.zayo.com
67.21.173.37	A	ca-dstreet-cuda4-c9a-37.snbrca.adelphia.net
67.21.173.38	PTR	38.173.21.67.available.zayo.com
67.21.173.39	PTR	39.173.21.67.available.zayo.com
67.21.173.44	PTR	44.173.21.67.available.zayo.com
67.21.173.44	A	ca-dstreet-cuda4-c9a-44.snbrca.adelphia.net
67.21.173.46	PTR	46.173.21.67.available.zayo.com
67.21.173.47	PTR	47.173.21.67.available.zayo.com
67.21.173.52	PTR	52.173.21.67.available.zayo.com
67.21.173.52	A	ca-dstreet-cuda4-c9a-52.snbrca.adelphia.net
67.21.173.53	PTR	53.173.21.67.available.zayo.com
67.21.173.53	A	ca-dstreet-cuda4-c9a-53.snbrca.adelphia.net
67.21.173.54	PTR	54.173.21.67.available.zayo.com
67.21.173.56	PTR	56.173.21.67.available.zayo.com
67.21.173.57	PTR	57.173.21.67.available.zayo.com
67.21.173.58	PTR	58.173.21.67.available.zayo.com
67.21.173.61	PTR	61.173.21.67.available.zayo.com
67.21.173.62	PTR	62.173.21.67.available.zayo.com
67.21.173.66	PTR	66.173.21.67.available.zayo.com
67.21.173.68	A	ca-dstreet-cuda4-c9a-68.snbrca.adelphia.net
67.21.173.72	A	ca-dstreet-cuda4-c9a-72.snbrca.adelphia.net
67.21.173.73	A	ca-dstreet-cuda4-c9a-73.snbrca.adelphia.net
67.21.173.74	A	ca-dstreet-cuda4-c9a-74.snbrca.adelphia.net
67.21.173.76	A	ca-dstreet-cuda4-c9a-76.snbrca.adelphia.net
67.21.173.77	A	ca-dstreet-cuda4-c9a-77.snbrca.adelphia.net
67.21.173.79	A	ca-dstreet-cuda4-c9a-79.snbrca.adelphia.net
67.21.173.80	PTR	80.173.21.67.available.zayo.com
67.21.173.80	A	ca-dstreet-cuda4-c9a-80.snbrca.adelphia.net
67.21.173.83	A	ca-dstreet-cuda4-c9a-83.snbrca.adelphia.net
67.21.173.85	PTR	85.173.21.67.static.corelink.com
67.21.173.86	PTR	86.173.21.67.available.zayo.com
67.21.173.87	PTR	87.173.21.67.available.zayo.com
67.21.173.88	A	ca-dstreet-cuda4-c9a-88.snbrca.adelphia.net
67.21.173.90	PTR	90.173.21.67.available.zayo.com
67.21.173.94	PTR	94.173.21.67.available.zayo.com
67.21.173.94	A	ca-dstreet-cuda4-c9a-94.snbrca.adelphia.net
67.21.173.95	PTR	95.173.21.67.available.zayo.com
67.21.173.96	PTR	96.173.21.67.available.zayo.com
67.21.173.98	PTR	98.173.21.67.available.zayo.com
67.21.173.101	PTR	101.173.21.67.available.zayo.com
67.21.173.103	PTR	103.173.21.67.available.zayo.com
67.21.173.104	PTR	104.173.21.67.available.zayo.com
67.21.173.104	A	ca-dstreet-cuda4-c9a-104.snbrca.adelphia.net
67.21.173.105	PTR	105.173.21.67.available.zayo.com
67.21.173.106	A	ca-dstreet-cuda4-c9a-106.snbrca.adelphia.net
67.21.173.108	A	ca-dstreet-cuda4-c9a-108.snbrca.adelphia.net
67.21.173.109	PTR	109.173.21.67.available.zayo.com
67.21.173.110	A	ca-dstreet-cuda4-c9a-110.snbrca.adelphia.net
67.21.173.112	PTR	112.173.21.67.static.corelink.com
67.21.173.113	PTR	113.173.21.67.available.zayo.com
67.21.173.114	A	ca-dstreet-cuda4-c9a-114.snbrca.adelphia.net
67.21.173.118	PTR	118.173.21.67.available.zayo.com
67.21.173.121	PTR	121.173.21.67.available.zayo.com
67.21.173.121	A	ca-dstreet-cuda4-c9a-121.snbrca.adelphia.net
67.21.173.123	A	ca-dstreet-cuda4-c9a-123.snbrca.adelphia.net
67.21.173.124	PTR	124.173.21.67.available.zayo.com
67.21.173.126	PTR	126.173.21.67.available.zayo.com
67.21.173.129	PTR	129.173.21.67.available.zayo.com
67.21.173.132	PTR	132.173.21.67.available.zayo.com
67.21.173.132	A	ca-dstreet-cuda4-c9a-132.snbrca.adelphia.net
67.21.173.134	PTR	134.173.21.67.available.zayo.com
67.21.173.135	A	ca-dstreet-cuda4-c9a-135.snbrca.adelphia.net
67.21.173.136	A	ca-dstreet-cuda4-c9a-136.snbrca.adelphia.net
67.21.173.137	A	ca-dstreet-cuda4-c9a-137.snbrca.adelphia.net
67.21.173.138	A	ca-dstreet-cuda4-c9a-138.snbrca.adelphia.net
67.21.173.139	A	ca-dstreet-cuda4-c9a-139.snbrca.adelphia.net
67.21.173.140	PTR	140.173.21.67.available.zayo.com
67.21.173.148	PTR	148.173.21.67.available.zayo.com
67.21.173.151	A	ca-dstreet-cuda4-c9a-151.snbrca.adelphia.net
67.21.173.152	A	ca-dstreet-cuda4-c9a-152.snbrca.adelphia.net
67.21.173.156	A	ca-dstreet-cuda4-c9a-156.snbrca.adelphia.net
67.21.173.158	A	ca-dstreet-cuda4-c9a-158.snbrca.adelphia.net
67.21.173.159	PTR	159.173.21.67.available.zayo.com
67.21.173.159	A	ca-dstreet-cuda4-c9a-159.snbrca.adelphia.net
67.21.173.160	A	ca-dstreet-cuda4-c9a-160.snbrca.adelphia.net
67.21.173.161	A	ca-dstreet-cuda4-c9a-161.snbrca.adelphia.net
67.21.173.162	A	ca-dstreet-cuda4-c9a-162.snbrca.adelphia.net
67.21.173.164	PTR	164.173.21.67.available.zayo.com
67.21.173.164	A	ca-dstreet-cuda4-c9a-164.snbrca.adelphia.net
67.21.173.165	A	ca-dstreet-cuda4-c9a-165.snbrca.adelphia.net
67.21.173.167	PTR	167.173.21.67.available.zayo.com
67.21.173.169	PTR	169.173.21.67.available.zayo.com
67.21.173.171	PTR	171.173.21.67.available.zayo.com
67.21.173.171	A	ca-dstreet-cuda4-c9a-171.snbrca.adelphia.net
67.21.173.172	PTR	172.173.21.67.available.zayo.com
67.21.173.172	A	ca-dstreet-cuda4-c9a-172.snbrca.adelphia.net
67.21.173.174	PTR	174.173.21.67.available.zayo.com
67.21.173.174	A	ca-dstreet-cuda4-c9a-174.snbrca.adelphia.net
67.21.173.175	PTR	175.173.21.67.static.corelink.com
67.21.173.178	A	ca-dstreet-cuda4-c9a-178.snbrca.adelphia.net
67.21.173.179	A	ca-dstreet-cuda4-c9a-179.snbrca.adelphia.net
67.21.173.183	A	ca-dstreet-cuda4-c9a-183.snbrca.adelphia.net
67.21.173.184	PTR	184.173.21.67.static.corelink.com
67.21.173.188	A	ca-dstreet-cuda4-c9a-188.snbrca.adelphia.net
67.21.173.189	PTR	189.173.21.67.static.corelink.com
67.21.173.189	A	mail1.synergyseven.com
67.21.173.189	A	mail.xtremecgi.com
67.21.173.192	A	ca-dstreet-cuda4-c9a-192.snbrca.adelphia.net
67.21.173.193	A	ca-dstreet-cuda4-c9a-193.snbrca.adelphia.net
67.21.173.197	PTR	197.173.21.67.available.zayo.com
67.21.173.197	A	ca-dstreet-cuda4-c9a-197.snbrca.adelphia.net
67.21.173.202	A	ca-dstreet-cuda4-c9a-202.snbrca.adelphia.net
67.21.173.204	A	ca-dstreet-cuda4-c9a-204.snbrca.adelphia.net
67.21.173.206	A	ca-dstreet-cuda4-c9a-206.snbrca.adelphia.net
67.21.173.207	PTR	207.173.21.67.available.zayo.com
67.21.173.212	PTR	212.173.21.67.available.zayo.com
67.21.173.217	PTR	217.173.21.67.available.zayo.com
67.21.173.218	PTR	218.173.21.67.available.zayo.com
67.21.173.219	PTR	219.173.21.67.available.zayo.com
67.21.173.220	PTR	220.173.21.67.available.zayo.com
67.21.173.221	A	ca-dstreet-cuda4-c9a-221.snbrca.adelphia.net
67.21.173.223	PTR	223.173.21.67.available.zayo.com
67.21.173.224	PTR	224.173.21.67.available.zayo.com
67.21.173.227	A	ca-dstreet-cuda4-c9a-227.snbrca.adelphia.net
67.21.173.228	PTR	228.173.21.67.available.zayo.com
67.21.173.229	PTR	229.173.21.67.available.zayo.com
67.21.173.229	A	ca-dstreet-cuda4-c9a-229.snbrca.adelphia.net
67.21.173.232	A	ca-dstreet-cuda4-c9a-232.snbrca.adelphia.net
67.21.173.233	PTR	233.173.21.67.available.zayo.com
67.21.173.233	A	ca-dstreet-cuda4-c9a-233.snbrca.adelphia.net
67.21.173.234	A	ca-dstreet-cuda4-c9a-234.snbrca.adelphia.net
67.21.173.237	A	ca-dstreet-cuda4-c9a-237.snbrca.adelphia.net
67.21.173.238	A	ca-dstreet-cuda4-c9a-238.snbrca.adelphia.net
67.21.173.240	PTR	240.173.21.67.available.zayo.com
67.21.173.240	A	ca-dstreet-cuda4-c9a-240.snbrca.adelphia.net
67.21.173.242	PTR	242.173.21.67.available.zayo.com
67.21.173.244	PTR	244.173.21.67.available.zayo.com
67.21.173.246	PTR	246.173.21.67.available.zayo.com
67.21.173.249	PTR	249.173.21.67.available.zayo.com
67.21.173.250	PTR	250.173.21.67.available.zayo.com
67.21.174.11	A	67-21-174-11.stmnca.adelphia.net
67.21.174.12	A	67-21-174-12.stmnca.adelphia.net
67.21.174.26	A	ns2.blackfin.com
67.21.174.30	PTR	30.174.21.67.static.corelink.com
67.21.174.30	A	ns0.blackfin.com
67.21.174.30	A	67-21-174-30.stmnca.adelphia.net
67.21.174.51	PTR	51.174.21.67.static.corelink.com
67.21.174.51	A	homepipe.net
67.21.174.58	A	67-21-174-58.vnnyca.adelphia.net
67.21.174.61	A	67-21-174-61-gate.stmnca.adelphia.net
67.21.174.65	A	67-21-174-65-gate.snbrca.adelphia.net
67.21.174.78	A	67-21-174-78.stmnca.adelphia.net
67.21.174.81	A	67-21-174-81-gate.vnnyca.adelphia.net
67.21.174.82	A	67-21-174-82.vnnyca.adelphia.net
67.21.174.153	A	67-21-174-153-gate.snbrca.adelphia.net
67.21.174.157	A	67-21-174-157-gate.vnnyca.adelphia.net
67.21.174.238	A	67-21-174-238.vnnyca.adelphia.net
67.21.174.245	A	67-21-174-245-gate.vnnyca.adelphia.net
67.21.174.251	A	67-21-174-251.vnnyca.adelphia.net
67.21.175.20	PTR	ivytalk.com
67.21.175.22	PTR	ivytalk.com
67.21.175.42	PTR	ivytalk.com
67.21.175.60	PTR	mediashare.com
67.21.175.69	A	dealerintell.com
67.21.175.70	PTR	70.175.21.67.static.corelink.com
67.21.175.70	A	moc.microsoftlabsonline.com
67.21.175.74	PTR	74.175.21.67.static.corelink.com
67.21.175.74	A	www.nampaparksandrecreation.org
67.21.175.74	A	optimizepd.com
67.21.175.79	PTR	79.175.21.67.static.corelink.com
67.21.175.79	A	myteammark.com