Robtex

Up: 192.69.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 192.69.24.0/22
Down right: 192.69.28.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.69.24.1	PTR	r1-pdx.noctel.com
192.69.24.1	A	r1.noctel.com
192.69.24.2	A	r1-pdx.noctel.com
192.69.24.36	A+PTR	vpn.noctel.com
192.69.24.38	PTR	vpn-client.noctel.com
192.69.24.40	PTR	vpn-client.noctel.com
192.69.24.41	PTR	vpn-client.noctel.com
192.69.24.42	PTR	vpn-client.noctel.com
192.69.24.43	PTR	vpn-client.noctel.com
192.69.24.48	PTR	vpn-client.noctel.com
192.69.24.49	PTR	vpn-client.noctel.com
192.69.24.50	PTR	vpn-client.noctel.com
192.69.24.51	PTR	vpn-client.noctel.com
192.69.24.56	PTR	vpn-client.noctel.com
192.69.24.57	PTR	vpn-client.noctel.com
192.69.24.58	PTR	vpn-client.noctel.com
192.69.24.59	PTR	vpn-client.noctel.com
192.69.24.87	A+PTR	flame.storago.com
192.69.24.87	A	mail.storago.com
192.69.24.87	A	mail.countryladyquiltshop.com
192.69.24.89	PTR	router-storago.noctel.com
192.69.24.90	PTR	arrow.storago.com
192.69.24.90	A	umpquaquakers.org
192.69.24.90	A	cosplaycars.com
192.69.24.91	PTR	arrow.storago.com
192.69.24.100	A	pugetvoip.com
192.69.24.100	A	pdxvoip.com
192.69.24.100	A	laxvoip.com
192.69.24.111	A+PTR	pdx1w.noctel.com
192.69.24.111	A	noctel.org
192.69.24.111	A	noctel.co
192.69.24.112	PTR	www.noctel.com
192.69.24.112	A	noctel.org
192.69.24.112	A	mail.noctel.com
192.69.24.113	PTR	www.schruth.com
192.69.24.130	A+PTR	www.packetvelocity.com
192.69.24.130	A	packetvelocity.com
192.69.24.130	A	photo.packetvelocity.com
192.69.24.162	A+PTR	airwave1.pnwsecurity.com
192.69.24.203	A	drakova.net
192.69.30.58	A	ammeter.us
192.69.30.59	A	noc.tel
192.69.30.68	A	vpn.noctel.com
192.69.30.109	A	flow-pnp.noctel.com
192.69.30.111	A	noctel.com
192.69.30.112	A	noctel.com