Robtex

Up: 66.150.8.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.150.8.0/25
Down right: 66.150.8.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.150.8.1	PTR	performance-1.sef.pnap.net
66.150.8.8	PTR	performance-3.sef.pnap.net
66.150.8.18	PTR	fcp-5.sef.pnap.net
66.150.8.20	PTR	performance-6.sef.pnap.net
66.150.8.26	PTR	fcp-7.sef.pnap.net
66.150.8.79	A+PTR	performance-measurement-2914-1.sef.pnap.net
66.150.8.82	A+PTR	performance-measurement-209-1.sef.pnap.net
66.150.8.83	A+PTR	performance-measurement-7018-1.sef.pnap.net
66.150.8.85	A+PTR	performance-measurement-6461-1.sef.pnap.net
66.150.8.86	A+PTR	performance-measurement-3257-1.sef.pnap.net
66.150.8.87	A+PTR	performance-measurement-701-1.sef.pnap.net
66.150.8.88	A+PTR	performance-measurement-174-1.sef.pnap.net
66.150.8.90	PTR	performance-measurement-7922-1.sef.pnap.net
66.150.8.96	PTR	fcp1.sef.pnap.net
66.150.8.112	PTR	performance.fe1.sef.pnap.net
66.150.8.140	A+PTR	mail.usnw.com
66.150.8.170	A+PTR	fis-ets-01.cranecoelectronics.com
66.150.8.170	A	mail.crane-eg.com
66.150.8.170	A	mail1.keltec.com
66.150.8.197	PTR	mx-in.schoolcal.org
66.150.8.232	A+PTR	mx2.costcotravel.com
66.150.8.234	A	ns1.costcotravel.com
66.150.8.238	A+PTR	mail4.costcotravel.com
66.150.8.248	A	tmx01.costcotravel.com