Robtex

Up: 204.225.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 204.225.16.0/21
Down right: 204.225.24.0/21

IP	Type	Hostname
204.225.16.3	A	mail.stelco.ca
204.225.29.33	PTR	st029033.stelco.ca
204.225.29.130	PTR	st029130.stelco.ca
204.225.29.144	PTR	st029144.stelco.ca
204.225.29.204	A	st029204.stelco.ca
204.225.29.228	PTR	st029228.stelco.ca
204.225.30.16	PTR	st030016.stelco.ca
204.225.30.33	PTR	st030033.stelco.ca
204.225.30.64	PTR	st030064.stelco.ca
204.225.30.78	A	st030078.stelco.ca
204.225.30.112	A+PTR	st030112.stelco.ca
204.225.30.113	PTR	st030113.stelco.ca
204.225.30.114	PTR	st030114.stelco.ca
204.225.30.121	A	st030121.stelco.ca
204.225.30.144	PTR	st030144.stelco.ca
204.225.30.160	PTR	st030160.stelco.ca
204.225.30.193	PTR	st030193.stelco.ca
204.225.30.194	PTR	st030194.stelco.ca
204.225.30.209	PTR	st030209.stelco.ca
204.225.30.210	PTR	st030210.stelco.ca
204.225.30.224	PTR	st030224.stelco.ca
204.225.30.243	A+PTR	st030243.stelco.ca