Robtex

Up: 172.244.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 172.244.0.0/17
Down right: 172.244.128.0/17

IP	Type	Hostname
172.244.1.2	PTR	e54396802f09f.bcdv-eme.natl.comcast.net
172.244.4.2	PTR	p00a0c8ca3fb3.bcdv-tme.natl.comcast.net
172.244.4.5	A+PTR	te-0-6-0-1-sur01.berlin.ct.hartford.comcast.net
172.244.4.185	A+PTR	te-0-0-0-5-sur01.berlin.ct.hartford.comcast.net
172.244.5.25	A+PTR	te-0-0-0-5-sur01.berlin.ct.hartford.comcast.net
172.244.5.133	A+PTR	te-0-6-0-1-sur01.berlin.ct.hartford.comcast.net
172.244.7.109	A+PTR	te-0-7-0-22-sur04.algonquin.il.chicago.comcast.net
172.244.7.149	A+PTR	te-0-7-0-22-sur04.algonquin.il.chicago.comcast.net
172.244.8.2	A+PTR	p00a0c8c1ce35.bcdv-tme.natl.comcast.net
172.244.16.2	PTR	p00a0c8ae1e92.bcdv-tme.natl.comcast.net
172.244.17.2	A+PTR	p00a0c8ae2044.bcdv-tme.natl.comcast.net
172.244.18.2	A+PTR	p00a0c8b51044.bcdv-tme.natl.comcast.net
172.244.19.2	A+PTR	p00a0c8b3270d.bcdv-tme.natl.comcast.net
172.244.21.2	A	p00a0c8b51fda.bcdv-tme.natl.comcast.net
172.244.22.2	PTR	p00a0c8ab8054.bcdv-tme.natl.comcast.net
172.244.23.2	PTR	p00a0c8b32807.bcdv-tme.natl.comcast.net
172.244.23.65	A+PTR	te-0-6-0-2-sur01.reading.pa.pitt.comcast.net
172.244.24.2	A+PTR	p00a0c8b326e5.bcdv-tme.natl.comcast.net
172.244.36.2	PTR	p00a0c8c1c9db.bcdv-tme.natl.comcast.net
172.244.38.2	A+PTR	p00a0c8c1ca13.bcdv-tme.natl.comcast.net
172.244.102.90	A	0019928e725f.bcdv-tme.natl.comcast.net