Robtex

Up: 201.163.76.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 201.163.78.0/24
Down right: 201.163.79.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.163.78.26	PTR	static-201-163-78-26.alestra.net.mx
201.163.78.40	PTR	static-201-163-78-40.alestra.net.mx
201.163.78.67	PTR	static-201-163-78-67.alestra.net.mx
201.163.78.67	A	tauron.ipade.mx
201.163.78.99	PTR	static-201-163-78-99.alestra.net.mx
201.163.78.100	PTR	static-201-163-78-100.alestra.net.mx
201.163.78.100	A	ut09.utags.edu.mx
201.163.78.101	PTR	static-201-163-78-101.alestra.net.mx
201.163.78.103	PTR	ut10.utags.edu.mx
201.163.78.104	PTR	static-201-163-78-104.alestra.net.mx
201.163.78.104	A	ut10.utags.edu.mx
201.163.78.106	PTR	static-201-163-78-106.alestra.net.mx
201.163.78.106	A	web.utags.edu.mx
201.163.78.110	PTR	static-201-163-78-110.alestra.net.mx
201.163.78.111	PTR	static-201-163-78-111.alestra.net.mx
201.163.78.130	PTR	natturalabs.com
201.163.78.130	A	prlogistic.com
201.163.78.130	A	tecitaly.com
201.163.78.132	A+PTR	webmail.natturalabs.com
201.163.78.132	A	smtp.tecitaly.com
201.163.78.132	A	smtp.prlogistic.com
201.163.78.133	PTR	mail01.natturalabs.com
201.163.78.134	PTR	mail02.natturalabs.com
201.163.78.134	A	mail02.patrice.com.mx
201.163.78.134	A	mail02.pravanamexico.com
201.163.78.137	PTR	static-201-163-78-137.alestra.net.mx
201.163.78.137	A	boxmart.com.mx
201.163.78.137	A	ns1.tecitaly.com
201.163.78.138	PTR	static-201-163-78-138.alestra.net.mx
201.163.78.139	PTR	static-201-163-78-139.alestra.net.mx
201.163.78.139	A	tecitaly.com
201.163.78.139	A	www.patrice.com.mx
201.163.79.43	A	dnst4.xwebsp2.com.mx
201.163.79.48	A	dnst3.xwebsp2.com.mx
201.163.79.212	PTR	static-201-163-79-212.alestra.net.mx