Robtex

Up: 24.89.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 24.89.52.0/23
Down right: 24.89.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
24.89.52.5	PTR	long01cpe54-5.tx.cablelynx.com
24.89.52.5	A	mx.blocdesign.com
24.89.52.5	A	mailfilter.ksaeng.com
24.89.52.6	PTR	long01cpe54-6.tx.cablelynx.com
24.89.52.6	A	mx.blocdesign.com
24.89.52.6	A	corpmail.ksaeng.com
24.89.52.9	A	ftp.ksaeng.com
24.89.52.9	A	mail2.showcase-systems.com
24.89.52.9	A	sharepoint.ksaeng.com
24.89.53.1	PTR	long01cpe55-1.tx.cablelynx.com
24.89.53.2	A	hbsvmail.hisd.com
24.89.53.5	PTR	long01cpe55-5.tx.cablelynx.com
24.89.53.5	A	hisd.com
24.89.53.5	A	student.hisd.com
24.89.53.12	PTR	long01cpe55-12.tx.cablelynx.com
24.89.53.45	PTR	long01cpe55-45.tx.cablelynx.com
24.89.53.45	A	arrowsearchinc.com
24.89.53.45	A	www.arrowsearchinc.com
24.89.53.63	PTR	long01cpe55-63.tx.cablelynx.com
24.89.53.64	PTR	long01cpe55-64.tx.cablelynx.com
24.89.53.127	PTR	long01cpe55-127.tx.cablelynx.com
24.89.53.128	PTR	long01cpe55-128.tx.cablelynx.com