Robtex

Up: 201.151.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 201.151.240.0/22
Down right: 201.151.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.151.242.181	A	mail.aaajuarez.org.mx
201.151.243.28	PTR	static-201-151-243-28.alestra.net.mx
201.151.243.69	PTR	static-201-151-243-69.alestra.net.mx
201.151.243.78	PTR	correo.ruba.com.mx
201.151.243.81	A	mail.rubanet.mx
201.151.243.81	A	rubanet.mx
201.151.243.81	A	mail.rubanet.com.mx
201.151.243.84	PTR	mail.ruba.com.mx
201.151.243.97	PTR	static-201-151-243-97.alestra.net.mx
201.151.243.97	A	owa.gruporuba.com.mx
201.151.244.8	PTR	static-201-151-244-8.alestra.net.mx
201.151.244.9	PTR	static-201-151-244-9.alestra.net.mx
201.151.244.10	PTR	static-201-151-244-10.alestra.net.mx
201.151.244.11	PTR	static-201-151-244-11.alestra.net.mx
201.151.244.32	PTR	static-201-151-244-32.alestra.net.mx
201.151.244.34	PTR	static-201-151-244-34.alestra.net.mx
201.151.244.43	PTR	static-201-151-244-43.alestra.net.mx
201.151.244.81	PTR	static-201-151-244-81.alestra.net.mx
201.151.244.82	PTR	static-201-151-244-82.alestra.net.mx
201.151.244.91	A+PTR	static-201-151-244-91.alestra.net.mx
201.151.244.99	PTR	static-201-151-244-99.alestra.net.mx
201.151.244.105	PTR	static-201-151-244-105.alestra.net.mx
201.151.244.107	PTR	static-201-151-244-107.alestra.net.mx
201.151.244.109	A	static-201-151-244-109.alestra.net.mx
201.151.244.114	PTR	static-201-151-244-114.alestra.net.mx
201.151.244.120	PTR	static-201-151-244-120.alestra.net.mx
201.151.244.121	PTR	static-201-151-244-121.alestra.net.mx
201.151.244.122	PTR	static-201-151-244-122.alestra.net.mx
201.151.244.136	PTR	static-201-151-244-136.alestra.net.mx
201.151.244.145	PTR	static-201-151-244-145.alestra.net.mx
201.151.244.152	PTR	static-201-151-244-152.alestra.net.mx
201.151.244.153	PTR	static-201-151-244-153.alestra.net.mx
201.151.244.193	PTR	static-201-151-244-193.alestra.net.mx
201.151.244.195	PTR	static-201-151-244-195.alestra.net.mx
201.151.244.200	PTR	static-201-151-244-200.alestra.net.mx
201.151.244.203	PTR	static-201-151-244-203.alestra.net.mx
201.151.244.218	PTR	static-201-151-244-218.alestra.net.mx
201.151.244.219	PTR	static-201-151-244-219.alestra.net.mx
201.151.244.233	PTR	static-201-151-244-233.alestra.net.mx
201.151.245.3	PTR	static-201-151-245-3.alestra.net.mx
201.151.245.10	PTR	static-201-151-245-10.alestra.net.mx
201.151.245.18	PTR	static-201-151-245-18.alestra.net.mx
201.151.245.24	PTR	static-201-151-245-24.alestra.net.mx
201.151.245.25	PTR	static-201-151-245-25.alestra.net.mx
201.151.245.34	PTR	static-201-151-245-34.alestra.net.mx
201.151.245.49	PTR	static-201-151-245-49.alestra.net.mx
201.151.245.56	PTR	static-201-151-245-56.alestra.net.mx
201.151.245.65	PTR	static-201-151-245-65.alestra.net.mx
201.151.245.73	PTR	static-201-151-245-73.alestra.net.mx
201.151.245.90	PTR	static-201-151-245-90.alestra.net.mx
201.151.245.104	PTR	static-201-151-245-104.alestra.net.mx
201.151.245.114	PTR	static-201-151-245-114.alestra.net.mx
201.151.245.121	PTR	static-201-151-245-121.alestra.net.mx
201.151.245.122	PTR	static-201-151-245-122.alestra.net.mx
201.151.245.123	PTR	static-201-151-245-123.alestra.net.mx
201.151.245.144	PTR	static-201-151-245-144.alestra.net.mx
201.151.245.145	PTR	static-201-151-245-145.alestra.net.mx
201.151.245.147	PTR	static-201-151-245-147.alestra.net.mx
201.151.245.154	PTR	static-201-151-245-154.alestra.net.mx
201.151.245.155	PTR	static-201-151-245-155.alestra.net.mx
201.151.245.160	PTR	static-201-151-245-160.alestra.net.mx
201.151.245.161	PTR	static-201-151-245-161.alestra.net.mx
201.151.245.168	PTR	static-201-151-245-168.alestra.net.mx
201.151.245.171	PTR	static-201-151-245-171.alestra.net.mx
201.151.245.176	PTR	static-201-151-245-176.alestra.net.mx
201.151.245.177	PTR	static-201-151-245-177.alestra.net.mx
201.151.245.184	PTR	static-201-151-245-184.alestra.net.mx
201.151.245.185	PTR	static-201-151-245-185.alestra.net.mx
201.151.245.192	PTR	static-201-151-245-192.alestra.net.mx
201.151.245.195	PTR	static-201-151-245-195.alestra.net.mx
201.151.245.201	PTR	static-201-151-245-201.alestra.net.mx
201.151.245.203	PTR	static-201-151-245-203.alestra.net.mx
201.151.245.208	PTR	static-201-151-245-208.alestra.net.mx
201.151.245.210	PTR	static-201-151-245-210.alestra.net.mx
201.151.245.211	PTR	static-201-151-245-211.alestra.net.mx
201.151.245.218	PTR	static-201-151-245-218.alestra.net.mx
201.151.245.224	PTR	static-201-151-245-224.alestra.net.mx
201.151.245.249	PTR	static-201-151-245-249.alestra.net.mx
201.151.246.2	PTR	static-201-151-246-2.alestra.net.mx
201.151.246.120	A	sewsus.com.mx
201.151.247.19	PTR	static-201-151-247-19.alestra.net.mx