Robtex

Up: 186.16.30.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 186.16.31.0/25
Down right: 186.16.31.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
186.16.31.1	PTR	static-1-31-16-186.telecel.com.py
186.16.31.2	A+PTR	speedtest.tigo.com.py
186.16.31.2	A	speedtest2.tigo.com.py
186.16.31.7	PTR	pool-7-31-16-186.telecel.com.py
186.16.31.12	PTR	static-12-31-16-186.telecel.com.py
186.16.31.21	PTR	static-21-31-16-186.telecel.com.py
186.16.31.33	PTR	static-33-31-16-186.telecel.com.py
186.16.31.42	PTR	static-42-31-16-186.telecel.com.py
186.16.31.71	PTR	cache.google.com
186.16.31.76	PTR	pool-76-31-16-186.telecel.com.py
186.16.31.77	PTR	cache.google.com
186.16.31.77	A	r2.sn-upbv2t-5n0l.gvt1.com
186.16.31.77	A	r2---sn-upbv2t-5n0l.googlevideo.com
186.16.31.78	PTR	cache.google.com
186.16.31.78	A	r3---sn-upbv2t-5n0l.googlevideo.com
186.16.31.78	A	r3---sn-upbv2t-5n0l.gvt1.com
186.16.31.83	PTR	cache.google.com
186.16.31.91	PTR	pool-91-31-16-186.telecel.com.py
186.16.31.106	PTR	pool-106-31-16-186.telecel.com.py
186.16.31.108	PTR	pool-108-31-16-186.telecel.com.py
186.16.31.115	PTR	cache.google.com
186.16.31.124	PTR	cache.google.com
186.16.31.141	PTR	static-141-31-16-186.telecel.com.py
186.16.31.152	PTR	static-152-31-16-186.telecel.com.py
186.16.31.154	PTR	c002.asu001.tigo-pa.netflix.com
186.16.31.154	A	occ-0-1071-27.1.nflxso.net
186.16.31.154	A	occ-0-1071-114.1.nflxso.net
186.16.31.171	PTR	pool-171-31-16-186.telecel.com.py
186.16.31.179	PTR	static-179-31-16-186.telecel.com.py
186.16.31.208	PTR	static-208-31-16-186.telecel.com.py
186.16.31.209	A+PTR	fna-fbcdn-shv-01-fasu1.fbcdn.net
186.16.31.209	A	external.fasu1-1.fna.fbcdn.net
186.16.31.209	A	scontent.fasu1-1.fna.fbcdn.net
186.16.31.210	A+PTR	fna-fbcdn-video-shv-01-fasu1.fbcdn.net
186.16.31.210	A	video.fasu1-1.fna.fbcdn.net
186.16.31.224	A+PTR	fna-instagram-shv-01-fasu1.fbcdn.net
186.16.31.224	A	instagram.fasu1-1.fna.fbcdn.net
186.16.31.225	A+PTR	fna-whatsapp-shv-01-fasu1.fbcdn.net
186.16.31.225	A	media.fasu1-1.fna.whatsapp.net
186.16.31.226	A	z-p3-scontent.fasu1-1.fna.fbcdn.net
186.16.31.228	PTR	static-228-31-16-186.telecel.com.py
186.16.31.245	PTR	static-245-31-16-186.telecel.com.py
186.16.31.252	PTR	static-252-31-16-186.telecel.com.py