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Autonomous System

AS278

Universidad Nacional Autonoma de Mexico

Announced IPs
131,584
CIDR prefixes
4
ASN
AS278

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Educational/Research
Geographic scope Global
Traffic ratio Not Disclosed
Peering policy Open

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS278 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
132.247.111.0/24 186,928 2026-09-11 04:38:15
132.248.79.0/24 186,514 2026-09-11 04:38:15
132.248.216.0/24 185,839 2026-09-11 04:38:15
132.248.188.0/24 185,774 2026-09-11 04:38:15
132.248.226.0/24 185,506 2026-09-11 04:38:15
132.247.85.0/24 185,262 2026-09-11 05:14:24
132.247.84.0/24 185,034 2026-09-11 05:14:24
132.247.158.0/24 114,193 2026-09-11 04:37:57
132.247.45.0/24 93,489 2026-09-11 04:37:57
132.247.155.0/24 80,783 2026-09-11 04:56:12
132.247.88.0/24 80,023 2026-09-11 04:56:12
132.247.161.0/24 79,929 2026-09-11 04:56:02
132.248.219.0/24 79,916 2026-09-11 04:37:58
132.248.142.0/24 79,854 2026-09-11 04:56:10
132.248.248.0/24 79,773 2026-09-11 04:37:58
132.248.179.0/24 79,761 2026-09-11 04:37:58
132.247.89.0/24 78,498 2026-09-11 04:56:16
132.247.91.0/24 78,381 2026-09-11 05:13:42
132.248.185.0/24 78,225 2026-09-11 04:37:58
132.248.91.0/24 77,429 2026-09-11 05:13:42
132.248.30.0/24 77,043 2026-09-11 05:14:24
132.247.98.0/24 74,777 2026-09-11 05:13:42
132.248.98.0/24 74,644 2026-09-11 05:13:42
132.247.51.0/24 71,316 2026-09-11 05:13:42
132.248.24.0/24 69,976 2026-09-11 05:13:42
132.248.193.0/24 62,719 2026-09-11 04:38:15
132.248.169.0/24 60,620 2026-09-11 05:13:42
132.247.180.0/24 59,424 2026-09-11 05:14:24
132.248.88.0/24 58,602 2026-09-11 05:14:24
132.248.121.0/24 58,443 2026-09-11 05:13:42
132.248.238.0/24 56,531 2026-09-11 05:14:24
132.248.180.0/24 56,188 2026-09-11 04:38:15
132.248.207.0/24 53,674 2026-09-11 05:14:24
132.247.20.0/24 53,147 2026-09-11 04:54:27
132.247.228.0/24 51,933 2026-09-11 04:56:02
132.248.191.0/24 49,891 2026-09-11 04:38:15
132.248.227.0/24 49,745 2026-09-11 04:54:27
132.247.182.0/24 49,429 2026-09-11 05:14:24
132.248.220.0/24 49,366 2026-09-11 05:14:24
132.247.101.0/24 49,321 2026-09-11 05:14:24
132.247.172.0/24 49,146 2026-09-11 04:38:15
132.248.32.0/24 49,128 2026-09-11 05:14:24
132.247.165.0/24 49,075 2026-09-11 04:54:27
132.248.196.0/24 48,603 2026-09-11 04:13:35
132.248.172.0/24 48,586 2026-09-11 04:55:57
132.247.94.0/24 48,382 2026-09-11 04:56:03
132.247.224.0/24 48,371 2026-09-11 04:13:35
132.248.81.0/24 48,366 2026-09-11 04:15:41
132.247.87.0/24 48,027 2026-09-11 04:38:15
132.248.94.0/24 47,812 2026-09-11 04:54:27

Showing top 50 of 168 announced prefixes by sample volume.

Frequently Asked Questions

What is AS278?

AS278 is an Autonomous System Number assigned to Universidad Nacional Autonoma de Mexico. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS278 announce?

AS278 announces 131.6K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Mexico.

Who operates AS278?

AS278 is operated by Universidad Nacional Autonoma de Mexico. The organization is based in Mexico. You can view all IP ranges and related ASNs on the organization page.

What country is AS278 registered in?

AS278 is registered in Mexico. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-11 05:09:06 UTC
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