Robtex

Up: 173.89.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 173.89.128.0/21
Down right: 173.89.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
173.89.129.141	A+PTR	cpe-173-89-129-141.new.res.rr.com
173.89.129.189	A+PTR	cpe-173-89-129-189.new.res.rr.com
173.89.130.26	A	bradwunderlich.com
173.89.130.27	A	mikenigl.com
173.89.130.52	A+PTR	cpe-173-89-130-52.new.res.rr.com
173.89.130.213	A+PTR	cpe-173-89-130-213.new.res.rr.com
173.89.131.12	A	andyplace.com
173.89.131.40	A	theheadmuseum.com
173.89.131.70	A+PTR	cpe-173-89-131-70.new.res.rr.com
173.89.131.138	A+PTR	cpe-173-89-131-138.new.res.rr.com
173.89.131.179	PTR	cpe-173-89-131-179.new.res.rr.com
173.89.131.181	A+PTR	cpe-173-89-131-181.new.res.rr.com
173.89.131.181	A	www.rushfordgatheringspace.com
173.89.132.201	A+PTR	cpe-173-89-132-201.new.res.rr.com
173.89.133.69	A+PTR	cpe-173-89-133-69.new.res.rr.com
173.89.133.87	A+PTR	cpe-173-89-133-87.new.res.rr.com
173.89.133.211	A+PTR	cpe-173-89-133-211.new.res.rr.com
173.89.134.26	A+PTR	cpe-173-89-134-26.new.res.rr.com
173.89.134.122	A+PTR	cpe-173-89-134-122.new.res.rr.com
173.89.136.14	A	mail.yedi.ca
173.89.136.168	A+PTR	cpe-173-89-136-168.new.res.rr.com
173.89.136.227	A	rozzops.com
173.89.138.33	A+PTR	cpe-173-89-138-33.new.res.rr.com
173.89.138.33	A	nextcloud.pizurhouse.com
173.89.138.33	A	pizurhouse.com
173.89.138.108	A+PTR	cpe-173-89-138-108.new.res.rr.com
173.89.138.205	A+PTR	cpe-173-89-138-205.new.res.rr.com
173.89.138.248	A+PTR	cpe-173-89-138-248.new.res.rr.com
173.89.139.30	A	waymanwittman.com
173.89.139.30	A	wittmanracing.com
173.89.139.30	A	idreamllc.com
173.89.140.86	A+PTR	cpe-173-89-140-86.new.res.rr.com
173.89.140.141	A+PTR	cpe-173-89-140-141.new.res.rr.com
173.89.140.213	A+PTR	cpe-173-89-140-213.new.res.rr.com
173.89.141.86	A+PTR	cpe-173-89-141-86.new.res.rr.com
173.89.141.220	A	*.8bitbytes.com
173.89.142.80	A+PTR	cpe-173-89-142-80.new.res.rr.com
173.89.143.31	A+PTR	cpe-173-89-143-31.new.res.rr.com