AS11136 — Instituto Tecnologico y de Estudios Superiores de Monterrey

Network type: education

AS11136 announces 5 IPv4 prefixes covering 20,736 addresses and 0 IPv6 prefixes.

About this network

AS11136 belongs to the Instituto Tecnológico y de Estudios Superiores de Monterrey — Tec de Monterrey — one of Mexico's largest private universities, with a multi-campus system headquartered in Monterrey, Nuevo León.

What it's used for

Campus networking for a university system. RIS observes 10 IPv4 prefixes carrying about 20,736 addresses, no IPv6, and a single BGP neighbour. One upstream and roughly a /17 of aggregate space is the classic shape of an institutional edge network: the AS exists so the university can hold and advertise its own address space, not to move anyone else's traffic. The size fits a campus estate — labs, faculty and administrative networks, student housing and wireless, plus the institution's own public-facing services.

Notable

The address space splits into two eras. The 132.254.0.0/16 blocks are legacy pre-CIDR class-B space, and the RDAP registrant for the announced pieces resolves to the parent 132.254.0.0 - 132.254.255.255 range rather than to separate third parties — the university is announcing sub-blocks of its own /16. The 200.36.224.0/19 group is LACNIC-region space, consistent with a Mexican allocation made after the region got its own registry. Both are first-party; there is no sign of foreign or leased blocks riding on this AS.

Interesting

Several of the RDAP lookups in the evidence pack failed rather than returning a registrant, so those prefixes are simply unverified — not evidence of anything. Reverse DNS returned nothing on the sampled addresses, which is a sample and no more; nothing about the zone's delegation should be read into it.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 132.254.48.0/21
• 132.254.144.0/21
• 132.254.192.0/19
• 132.254.232.0/24
• 200.36.224.0/19

Upstream networks

• AS11172 Alestra, S. de R.L. de C.V.

Adjacent networks

• AS11172 Alestra, S. de R.L. de C.V.

Routing security

• RPKI: 0 valid, 0 invalid and 10 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 13 route objects.
• Listed in as-sets: AS-28513, AS-8151, AS-ALESTRA, AS-BESTEL-NET, AS-IUSACELL, AS-TOTALPLAY, AS3491:AS-CUSTOMERS-NA.