Robtex

Up: 23.28.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 23.28.64.0/20
Down right: 23.28.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
23.28.64.157	A+PTR	d28-23-157-64.dim.wideopenwest.com
23.28.65.53	A+PTR	d28-23-53-65.dim.wideopenwest.com
23.28.66.152	A+PTR	d28-23-152-66.dim.wideopenwest.com
23.28.67.154	A+PTR	d28-23-154-67.dim.wideopenwest.com
23.28.67.154	A	joyfulleo.com
23.28.68.188	A+PTR	d28-23-188-68.dim.wideopenwest.com
23.28.68.239	A+PTR	d28-23-239-68.dim.wideopenwest.com
23.28.69.66	PTR	d28-23-66-69.dim.wideopenwest.com
23.28.70.61	A+PTR	d28-23-61-70.dim.wideopenwest.com
23.28.70.61	A	jonality.asuscomm.com
23.28.70.61	A	jonality.com
23.28.70.214	A+PTR	d28-23-214-70.dim.wideopenwest.com
23.28.71.156	A+PTR	d28-23-156-71.dim.wideopenwest.com
23.28.71.201	PTR	d28-23-201-71.dim.wideopenwest.com
23.28.72.74	A	fusiongear.net
23.28.72.74	A	*.fusiongear.net
23.28.73.153	A+PTR	d28-23-153-73.dim.wideopenwest.com
23.28.74.88	A+PTR	d28-23-88-74.dim.wideopenwest.com
23.28.74.88	A	malebolge.efpophis.net
23.28.74.190	A+PTR	d28-23-190-74.dim.wideopenwest.com
23.28.74.190	A	dcrouter.net
23.28.75.92	A+PTR	d28-23-92-75.dim.wideopenwest.com
23.28.75.92	A	unpetitaccident.com
23.28.76.73	A+PTR	d28-23-73-76.dim.wideopenwest.com
23.28.76.98	A+PTR	d28-23-98-76.dim.wideopenwest.com
23.28.76.98	A	walshsystem.com
23.28.76.171	A+PTR	d28-23-171-76.dim.wideopenwest.com
23.28.77.39	A+PTR	d28-23-39-77.dim.wideopenwest.com
23.28.77.39	A	www.samrg123.com
23.28.77.44	A+PTR	d28-23-44-77.dim.wideopenwest.com
23.28.77.133	A+PTR	d28-23-133-77.dim.wideopenwest.com
23.28.78.1	A+PTR	d28-23-1-78.dim.wideopenwest.com
23.28.78.168	PTR	d28-23-168-78.dim.wideopenwest.com
23.28.78.168	A	the-harringtons.org
23.28.79.161	PTR	d28-23-161-79.dim.wideopenwest.com
23.28.79.161	A	mail.nados.com
23.28.79.161	A	nados.com
23.28.80.7	A+PTR	d28-23-7-80.dim.wideopenwest.com
23.28.80.7	A	suhaspotluri.com
23.28.80.13	A	d28-23-13-80.dim.wideopenwest.com
23.28.80.85	A	mail.fusiongear.net
23.28.80.162	A	unpetitaccident.com
23.28.80.212	A	fusiongear.net
23.28.80.212	A	*.fusiongear.net
23.28.80.233	A+PTR	d28-23-233-80.dim.wideopenwest.com
23.28.80.233	A	alwaysgoodmusic.com
23.28.81.48	A+PTR	d28-23-48-81.dim.wideopenwest.com
23.28.81.48	A	jonality.asuscomm.com
23.28.81.48	A	jonality.com
23.28.81.132	A+PTR	d28-23-132-81.dim.wideopenwest.com
23.28.81.132	A	themroczkas.com
23.28.81.132	A	mail.awana-scmi.org
23.28.82.121	A+PTR	d28-23-121-82.dim.wideopenwest.com
23.28.82.121	A	symera.com
23.28.82.176	A+PTR	d28-23-176-82.dim.wideopenwest.com
23.28.82.176	A	jacobanderson.net
23.28.82.246	A+PTR	d28-23-246-82.dim.wideopenwest.com
23.28.82.246	A	hawkshaws.com
23.28.83.212	A	d28-23-212-83.dim.wideopenwest.com
23.28.83.231	A	d28-23-231-83.dim.wideopenwest.com
23.28.84.44	A	mail.fusiongear.net
23.28.84.91	A	joshracine.com
23.28.84.205	PTR	d28-23-205-84.dim.wideopenwest.com
23.28.85.201	A+PTR	d28-23-201-85.dim.wideopenwest.com
23.28.85.203	PTR	d28-23-203-85.dim.wideopenwest.com
23.28.85.216	A	d28-23-216-85.dim.wideopenwest.com
23.28.85.242	A	d28-23-242-85.dim.wideopenwest.com
23.28.86.135	A+PTR	d28-23-135-86.dim.wideopenwest.com
23.28.86.159	PTR	d28-23-159-86.dim.wideopenwest.com
23.28.86.159	A	qnapnas42309.myqnapcloud.com
23.28.86.159	A	freenas42309.ddns.net
23.28.86.185	A+PTR	d28-23-185-86.dim.wideopenwest.com
23.28.86.185	A	dcrouter.net
23.28.86.207	A	d28-23-207-86.dim.wideopenwest.com
23.28.87.49	A	d28-23-49-87.dim.wideopenwest.com
23.28.87.121	A+PTR	d28-23-121-87.dim.wideopenwest.com
23.28.88.205	A+PTR	d28-23-205-88.dim.wideopenwest.com
23.28.89.245	A+PTR	d28-23-245-89.dim.wideopenwest.com
23.28.89.245	A	webmail2.bcnservers.com
23.28.93.220	A	d28-23-220-93.dim.wideopenwest.com