Robtex

Up: 74.112.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 74.112.40.0/22
Down right: 74.112.44.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.112.41.86	A	mail.verdegroup.com
74.112.41.126	A	remote.backyardbrands.com
74.112.41.163	A	mail.skjodt-barrett.com
74.112.41.169	PTR	74-112-41-169.net.activo.ca
74.112.41.211	PTR	74-112-41-211.net.activo.ca
74.112.41.212	A	mail.sbhr.ca
74.112.41.212	A	cosmopolitantoronto.com
74.112.41.242	PTR	74-112-41-242.net.cic-totalcare.com
74.112.41.243	PTR	www.cic-totalcare.com
74.112.41.243	A	host3.cic-totalcare.com
74.112.41.243	A	cic-totalcare.com
74.112.41.245	PTR	mail.cic-totalcare.com
74.112.43.138	A	mx.shandex.com
74.112.45.2	PTR	74-112-45-2.net.activo.ca
74.112.45.9	PTR	74-112-45-9.net.activo.ca
74.112.45.17	PTR	74-112-45-17.net.activo.ca
74.112.45.25	PTR	74-112-45-25.net.activo.ca
74.112.45.34	PTR	74-112-45-34.net.activo.ca
74.112.45.40	PTR	74-112-45-40.net.activo.ca
74.112.45.48	PTR	74-112-45-48.net.activo.ca
74.112.45.57	PTR	74-112-45-57.net.activo.ca
74.112.45.58	PTR	74-112-45-58.net.activo.ca
74.112.45.75	PTR	74-112-45-75.net.activo.ca
74.112.45.88	PTR	74-112-45-88.net.activo.ca
74.112.45.105	PTR	74-112-45-105.net.activo.ca
74.112.45.107	PTR	74-112-45-107.net.activo.ca
74.112.45.112	PTR	74-112-45-112.net.activo.ca
74.112.45.114	PTR	74-112-45-114.net.activo.ca
74.112.45.123	PTR	74-112-45-123.net.activo.ca
74.112.45.128	PTR	74-112-45-128.net.activo.ca
74.112.45.131	PTR	74-112-45-131.net.activo.ca
74.112.45.137	PTR	74-112-45-137.net.activo.ca
74.112.45.138	PTR	74-112-45-138.net.activo.ca
74.112.45.153	PTR	74-112-45-153.net.activo.ca
74.112.45.155	PTR	74-112-45-155.net.activo.ca
74.112.45.169	PTR	74-112-45-169.net.activo.ca
74.112.45.178	PTR	74-112-45-178.net.activo.ca
74.112.45.179	PTR	74-112-45-179.net.activo.ca
74.112.45.185	PTR	74-112-45-185.net.activo.ca
74.112.45.187	PTR	74-112-45-187.net.activo.ca
74.112.45.195	PTR	74-112-45-195.net.activo.ca
74.112.45.201	PTR	74-112-45-201.net.activo.ca
74.112.45.210	PTR	74-112-45-210.net.activo.ca
74.112.45.218	PTR	74-112-45-218.net.activo.ca
74.112.45.226	PTR	74-112-45-226.net.activo.ca
74.112.45.249	PTR	74-112-45-249.net.activo.ca
74.112.46.3	PTR	74-112-46-3.net.activo.ca
74.112.46.9	PTR	speedtest.activo.ca
74.112.46.11	A+PTR	ns1.activo.ca
74.112.46.18	PTR	74-112-46-18.net.activo.ca
74.112.46.19	PTR	74-112-46-19.net.activo.ca
74.112.46.25	PTR	74-112-46-25.net.activo.ca
74.112.46.27	PTR	74-112-46-27.net.activo.ca
74.112.46.43	PTR	74-112-46-43.net.activo.ca
74.112.46.48	PTR	74-112-46-48.net.activo.ca
74.112.46.57	PTR	74-112-46-57.net.activo.ca
74.112.46.72	PTR	74-112-46-72.net.activo.ca
74.112.46.73	A+PTR	sipx.gluskinsheff.activo.ca
74.112.46.89	PTR	74-112-46-89.net.activo.ca
74.112.46.99	PTR	74-112-46-99.net.activo.ca
74.112.46.106	PTR	74-112-46-106.net.activo.ca
74.112.46.114	PTR	74-112-46-114.net.activo.ca
74.112.46.120	PTR	74-112-46-120.net.activo.ca
74.112.46.121	PTR	74-112-46-121.net.activo.ca
74.112.46.123	PTR	74-112-46-123.net.activo.ca
74.112.46.153	PTR	74-112-46-153.net.activo.ca
74.112.46.155	PTR	74-112-46-155.net.activo.ca
74.112.46.161	PTR	74-112-46-161.net.activo.ca
74.112.46.184	PTR	74-112-46-184.net.activo.ca
74.112.46.194	PTR	74-112-46-194.net.activo.ca
74.112.46.195	PTR	74-112-46-195.net.activo.ca
74.112.46.201	PTR	74-112-46-201.net.activo.ca
74.112.46.202	PTR	74-112-46-202.net.activo.ca
74.112.46.210	PTR	74-112-46-210.net.activo.ca
74.112.46.218	PTR	74-112-46-218.net.activo.ca
74.112.46.233	PTR	74-112-46-233.net.activo.ca
74.112.46.241	PTR	74-112-46-241.net.activo.ca
74.112.46.243	PTR	74-112-46-243.net.activo.ca
74.112.46.248	PTR	74-112-46-248.net.activo.ca
74.112.46.251	PTR	74-112-46-251.net.activo.ca
74.112.47.156	A+PTR	mail1.activo.ca
74.112.47.162	A	mail.shandex.com
74.112.47.162	A	pop.shandex.com