Robtex

Up: 74.168.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 74.168.32.0/20
Down right: 74.168.48.0/20

IP	Type	Hostname
74.168.32.2	A+PTR	adsl-074-168-032-002.sip.jax.bellsouth.net
74.168.35.2	A+PTR	adsl-074-168-035-002.sip.jax.bellsouth.net
74.168.38.2	A+PTR	adsl-074-168-038-002.sip.jax.bellsouth.net
74.168.40.36	A+PTR	adsl-074-168-040-036.sip.jax.bellsouth.net
74.168.41.5	A+PTR	adsl-074-168-041-005.sip.jax.bellsouth.net
74.168.41.210	A+PTR	adsl-074-168-041-210.sip.jax.bellsouth.net
74.168.41.210	A	mail.drummac.com
74.168.48.1	A+PTR	adsl-074-168-048-001.sip.jax.bellsouth.net
74.168.60.245	A+PTR	adsl-074-168-060-245.sip.jax.bellsouth.net