Robtex

Up: 27.251.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 27.251.80.0/23
Down right: 27.251.82.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.251.80.43	PTR	aircel-gprs-43.80.251.27.aircel.co.in
27.251.80.46	PTR	abs-static-46.80.251.27.aircel.co.in
27.251.80.49	PTR	abs-static-49.80.251.27.aircel.co.in
27.251.80.52	PTR	abs-static-52.80.251.27.aircel.co.in
27.251.80.55	PTR	abs-static-55.80.251.27.aircel.co.in
27.251.80.58	PTR	abs-static-58.80.251.27.aircel.co.in
27.251.80.58	A	cpcbchemtrols.com
27.251.80.75	PTR	aircel-gprs-75.80.251.27.aircel.co.in
27.251.80.86	PTR	aircel-gprs-86.80.251.27.aircel.co.in
27.251.80.91	PTR	aircel-gprs-91.80.251.27.aircel.co.in
27.251.80.115	PTR	aircel-gprs-115.80.251.27.aircel.co.in
27.251.80.137	PTR	abs-static-137.80.251.27.aircel.co.in
27.251.80.146	PTR	abs-static-146.80.251.27.aircel.co.in
27.251.80.148	PTR	abs-static-148.80.251.27.aircel.co.in
27.251.80.150	PTR	aircel-gprs-150.80.251.27.aircel.co.in
27.251.80.157	PTR	aircel-gprs-157.80.251.27.aircel.co.in
27.251.80.160	PTR	aircel-gprs-160.80.251.27.aircel.co.in
27.251.80.180	PTR	abs-static-180.80.251.27.aircel.co.in
27.251.80.191	PTR	abs-static-191.80.251.27.aircel.co.in
27.251.80.200	PTR	aircel-gprs-200.80.251.27.aircel.co.in
27.251.80.204	PTR	abs-static-204.80.251.27.aircel.co.in
27.251.81.46	PTR	abs-static-46.81.251.27.aircel.co.in
27.251.81.94	PTR	abs-static-94.81.251.27.aircel.co.in
27.251.81.240	PTR	abs-static-240.81.251.27.aircel.co.in
27.251.82.13	PTR	abs-static-13.82.251.27.aircel.co.in
27.251.82.26	PTR	abs-static-26.82.251.27.aircel.co.in
27.251.82.34	PTR	abs-static-34.82.251.27.aircel.co.in
27.251.82.58	PTR	abs-static-58.82.251.27.aircel.co.in
27.251.82.78	PTR	abs-static-78.82.251.27.aircel.co.in
27.251.82.79	PTR	abs-static-79.82.251.27.aircel.co.in
27.251.82.81	PTR	abs-static-81.82.251.27.aircel.co.in
27.251.82.85	PTR	abs-static-85.82.251.27.aircel.co.in
27.251.82.93	PTR	abs-static-93.82.251.27.aircel.co.in
27.251.82.114	PTR	mail.s-amit.com
27.251.82.115	PTR	abs-static-115.82.251.27.aircel.co.in
27.251.82.120	PTR	abs-static-120.82.251.27.aircel.co.in
27.251.82.121	PTR	abs-static-121.82.251.27.aircel.co.in
27.251.82.124	PTR	abs-static-124.82.251.27.aircel.co.in
27.251.82.126	PTR	abs-static-126.82.251.27.aircel.co.in
27.251.82.129	PTR	abs-static-129.82.251.27.aircel.co.in
27.251.82.132	PTR	abs-static-132.82.251.27.aircel.co.in
27.251.82.132	A	webmail.taurusmutualfund.com
27.251.82.132	A	mail.taurusmutualfund.com
27.251.82.150	PTR	abs-static-150.82.251.27.aircel.co.in
27.251.82.153	PTR	abs-static-153.82.251.27.aircel.co.in
27.251.82.155	PTR	abs-static-155.82.251.27.aircel.co.in
27.251.82.160	PTR	abs-static-160.82.251.27.aircel.co.in
27.251.82.163	PTR	abs-static-163.82.251.27.aircel.co.in
27.251.82.167	PTR	abs-static-167.82.251.27.aircel.co.in
27.251.82.172	PTR	abs-static-172.82.251.27.aircel.co.in
27.251.82.179	A	paybackcigna.com
27.251.82.181	PTR	abs-static-181.82.251.27.aircel.co.in
27.251.82.203	PTR	abs-static-203.82.251.27.aircel.co.in
27.251.82.212	PTR	abs-static-212.82.251.27.aircel.co.in
27.251.82.214	PTR	abs-static-214.82.251.27.aircel.co.in
27.251.82.218	PTR	abs-static-218.82.251.27.aircel.co.in
27.251.82.229	PTR	abs-static-229.82.251.27.aircel.co.in
27.251.82.240	PTR	abs-static-240.82.251.27.aircel.co.in
27.251.82.245	PTR	abs-static-245.82.251.27.aircel.co.in
27.251.82.250	PTR	abs-static-250.82.251.27.aircel.co.in
27.251.83.10	PTR	abs-static-10.83.251.27.aircel.co.in
27.251.83.11	PTR	abs-static-11.83.251.27.aircel.co.in
27.251.83.11	A	courses.christuniversity.in
27.251.83.12	PTR	abs-static-12.83.251.27.aircel.co.in
27.251.83.12	A	cjcib.com
27.251.83.12	A	christinstitute-ncr.net
27.251.83.13	PTR	abs-static-13.83.251.27.aircel.co.in
27.251.83.157	A+PTR	mail.lisaapparels.com
27.251.83.201	PTR	abs-static-201.83.251.27.aircel.co.in
27.251.83.204	PTR	abs-static-204.83.251.27.aircel.co.in
27.251.83.209	PTR	abs-static-209.83.251.27.aircel.co.in
27.251.83.209	A	championmarketingventures.in
27.251.83.209	A	b2bdataapi.net
27.251.83.211	PTR	abs-static-211.83.251.27.aircel.co.in
27.251.83.212	A	mail.championsmail.com
27.251.83.218	PTR	abs-static-218.83.251.27.aircel.co.in
27.251.83.218	A	mail.hrcentral.us
27.251.83.218	A	mail.projectcentral.us
27.251.83.221	PTR	abs-static-221.83.251.27.aircel.co.in
27.251.83.221	A	recruitingcentral.us
27.251.83.221	A	subhakarraosurapaneni.com