Robtex

Up: 173.228.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 173.228.8.0/22
Down right: 173.228.12.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
173.228.8.0	PTR	173-228-8-0.dsl.dynamic.sonic.net
173.228.8.74	A+PTR	173-228-8-74.dsl.dynamic.fusionbroadband.com
173.228.9.15	PTR	173-228-9-15.dsl.static.fusionbroadband.com
173.228.9.15	A	mail.epmos.com
173.228.9.15	A	www.epmos.com
173.228.9.20	A+PTR	173-228-9-20.static.sonic.net
173.228.9.20	A	ns.deepthot.org
173.228.9.24	PTR	173-228-9-24.dsl.static.sonic.net
173.228.9.24	A	bytemeister.com
173.228.9.24	A	lyra.bytemeister.com
173.228.9.230	A+PTR	173-228-9-230.dsl.static.fusionbroadband.com
173.228.9.230	A	mail2.gotpart.com
173.228.9.230	A	ns2.gotpart.com
173.228.9.231	PTR	173-228-9-231.dsl.static.fusionbroadband.com
173.228.9.231	A	www.gotpart.com
173.228.9.240	PTR	173-228-9-240.dsl.static.fusionbroadband.com
173.228.9.240	A	mail.gmp.san-jose.ca.us
173.228.9.240	A	featherlei.com
173.228.9.249	PTR	173-228-9-249.dsl.static.fusionbroadband.com
173.228.9.249	A	173-228-9-249.dsl.static.sonic.net
173.228.9.250	A+PTR	mini.sonn.com
173.228.9.254	A	mail.whosbob.net
173.228.9.254	A	173-228-9-254.dsl.static.fusionbroadband.com
173.228.10.51	PTR	173-228-10-51.dsl.dynamic.fusionbroadband.com
173.228.11.3	A+PTR	173-228-11-3.dsl.static.fusionbroadband.com
173.228.11.240	A+PTR	xaelin.net
173.228.12.0	PTR	173-228-12-0.dsl.dynamic.sonic.net
173.228.12.2	A	173-228-12-2.dsl.dynamic.fusionbroadband.com
173.228.12.101	A	173-228-12-101.dsl.dynamic.fusionbroadband.com
173.228.12.101	A	173-228-12-101.dsl.dynamic.sonic.net
173.228.12.105	PTR	173-228-12-105.dsl.dynamic.sonic.net
173.228.12.232	A	173-228-12-232.dsl.dynamic.sonic.net
173.228.12.234	PTR	173-228-12-234.dsl.dynamic.fusionbroadband.com
173.228.12.234	A	yulaev.com
173.228.13.6	A	mail.freehardwaremovement.org
173.228.13.6	A	freehardwaremovement.org
173.228.13.6	A	pagansexcult.com
173.228.13.26	PTR	mako.digitalfish.com
173.228.13.43	A	mail.metacache.net
173.228.13.43	A	metacache.net
173.228.13.65	A+PTR	173-228-13-65.dsl.static.fusionbroadband.com
173.228.13.65	A	mail.irenazak.com
173.228.13.67	PTR	173-228-13-67.dsl.static.sonic.net
173.228.13.67	A	aliantair.com
173.228.13.67	A	www.aliantair.com
173.228.13.208	A+PTR	remerick.com
173.228.13.249	A	herro.net
173.228.13.252	A	bunsi.biz
173.228.14.2	A	e0.dslam.snmtca11.sonic.net
173.228.15.98	A+PTR	173-228-15-98.static.sonic.net
173.228.15.98	A	mail.wvgs.com
173.228.15.255	A+PTR	173-228-15-255.static.sonic.net