Robtex

Up: 182.72.112.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 182.72.116.0/23
Down right: 182.72.118.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.72.116.132	PTR	nsg-static-132.116.72.182.airtel.in
182.72.116.174	PTR	nsg-static-174.116.72.182.airtel.in
182.72.116.246	PTR	nsg-static-246.116.72.182.airtel.in
182.72.116.246	A	mail.mepinfra.com
182.72.116.247	A	itiplmail.com
182.72.116.247	A	www.itiplmail.com
182.72.117.9	PTR	nsg-static-009.117.72.182.airtel.in
182.72.118.54	PTR	nsg-static-054.118.72.182.airtel.in
182.72.118.54	A	mail.nirvanasociety.com
182.72.118.77	A	mail.pravin.us
182.72.118.77	A	pravin.us
182.72.118.161	PTR	grgeducation.com
182.72.118.161	PTR	grgsms.com
182.72.118.161	PTR	psgrkc.com
182.72.118.164	PTR	nsg-static-164.118.72.182.airtel.in
182.72.118.214	A+PTR	mail.rusanmedisys.com
182.72.118.224	PTR	nsg-static-224.118.72.182.airtel.in
182.72.118.226	PTR	nsg-static-226.118.72.182.airtel.in
182.72.119.2	PTR	nsg-static-002.119.72.182.airtel.in
182.72.119.4	A+PTR	mail.avpayurveda.com
182.72.119.65	PTR	nsg-static-065.119.72.182.airtel.in
182.72.119.65	A	oceans-10.com
182.72.119.69	A	mail.email-promo.com
182.72.119.70	PTR	maxiclient.com
182.72.119.70	A	janitorialbusinessexperts.com
182.72.119.72	PTR	mail.maxiclient.com
182.72.119.72	PTR	mail.redbrand.in
182.72.119.72	A	vamineemedicals.com
182.72.119.74	A	mail2.stemiindia.com
182.72.119.75	PTR	mail.pptservices.com
182.72.119.75	A	mail.pptssolutions.com
182.72.119.75	A	mail.klintelligen.com
182.72.119.76	PTR	nsg-static-076.119.72.182.airtel.in
182.72.119.76	A	www.pptssolutions.com
182.72.119.76	A	www.klintelligen.com
182.72.119.77	PTR	mail.secured-web-hosting.com
182.72.119.105	PTR	nsg-static-105.119.72.182.airtel.in
182.72.119.218	PTR	nsg-static-218.119.72.182.airtel.in