Robtex

Up: 66.140.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 66.140.32.0/20
Down right: 66.140.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.140.32.2	PTR	adsl-66-140-32-2.dsl.rcsntx.swbell.net
66.140.33.103	A	adsl-66-140-33-103.dsl.rcsntx.swbell.net
66.140.33.144	A	adsl-66-140-33-144.dsl.rcsntx.swbell.net
66.140.34.103	A	adsl-66-140-34-103.dsl.rcsntx.swbell.net
66.140.34.110	A	adsl-66-140-34-110.dsl.rcsntx.swbell.net
66.140.35.110	A	adsl-66-140-35-110.dsl.rcsntx.swbell.net
66.140.36.4	A	66-140-36-4.ded.swbell.net
66.140.36.6	A	66-140-36-6.ded.swbell.net
66.140.36.15	A	66-140-36-15.ded.swbell.net
66.140.36.17	A	66-140-36-17.ded.swbell.net
66.140.36.34	A	66-140-36-34.ded.swbell.net
66.140.36.35	A	66-140-36-35.ded.swbell.net
66.140.36.36	A	66-140-36-36.ded.swbell.net
66.140.36.44	A	66-140-36-44.ded.swbell.net
66.140.36.104	A	mail.fashionhardwareonline.biz
66.140.36.109	A	mail.fashionhardwareonline.com
66.140.36.109	A	mail.generaldoors.com
66.140.40.174	A	adsl-66-140-40-174.dsl.rcsntx.swbell.net
66.140.41.185	A	adsl-66-140-41-185.dsl.rcsntx.swbell.net
66.140.42.97	A	adsl-66-140-42-97.dsl.rcsntx.swbell.net
66.140.43.140	A	message.yourfederalcu.com
66.140.44.0	PTR	adsl-66-140-44-0.dsl.rcsntx.swbell.net
66.140.44.20	A	adsl-66-140-44-20.dsl.rcsntx.swbell.net
66.140.44.129	PTR	adsl-66-140-44-129.dsl.rcsntx.swbell.net
66.140.45.67	A+PTR	adsl-66-140-45-67.dsl.rcsntx.swbell.net
66.140.46.250	A	adsl-66-140-46-250.dsl.rcsntx.swbell.net
66.140.47.0	A	adsl-66-140-47-0.dsl.rcsntx.swbell.net
66.140.49.45	A	mail.dallasweddingbands.com
66.140.49.45	A	mail.dominoeffectdfw.com
66.140.49.45	A	mail.cuveemusic.com
66.140.56.0	PTR	adsl-66-140-56-0.dsl.rcsntx.swbell.net
66.140.56.128	A	adsl-66-140-56-128.dsl.rcsntx.swbell.net
66.140.57.85	A	adsl-66-140-57-85.dsl.rcsntx.swbell.net
66.140.58.185	A	adsl-66-140-58-185.dsl.rcsntx.swbell.net
66.140.58.210	A	adsl-66-140-58-210.dsl.rcsntx.swbell.net
66.140.59.23	A	adsl-66-140-59-23.dsl.rcsntx.swbell.net
66.140.63.227	PTR	adsl-66-140-63-227.dsl.rcsntx.swbell.net