Robtex

Up: 148.244.250.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 148.244.251.0/25
Down right: 148.244.251.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
148.244.251.2	A+PTR	ns.flexi.com.mx
148.244.251.3	A+PTR	mail.flexi.com.mx
148.244.251.4	PTR	static-148-244-251-4.alestra.net.mx
148.244.251.4	A	flexionline.com.mx
148.244.251.4	A	flexienlinea.com.mx
148.244.251.8	PTR	static-148-244-251-8.alestra.net.mx
148.244.251.11	A+PTR	antivirus.flexi.com.mx
148.244.251.11	A	correo.quirelli.com.mx
148.244.251.11	A	correo.quirelli.com
148.244.251.14	PTR	static-148-244-251-14.alestra.net.mx
148.244.251.14	A	quirellienlinea.mx
148.244.251.31	PTR	static-148-244-251-31.alestra.net.mx
148.244.251.64	PTR	static-148-244-251-64.alestra.net.mx
148.244.251.112	PTR	static-148-244-251-112.alestra.net.mx
148.244.251.126	PTR	static-148-244-251-126.alestra.net.mx
148.244.251.196	PTR	static-148-244-251-196.alestra.net.mx