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Autonomous System

AS3807

University of Montana

Announced IPs
85,760
CIDR prefixes
22
ASN
AS3807

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.

71/100
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 North America
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS3807:RS-UMTNET

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS3807 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
150.131.0.0/16 7,070 2026-09-12 17:38:46
204.62.203.0/24 7,067 2026-09-12 17:38:46
192.73.48.0/24 7,066 2026-09-12 17:38:46
207.196.168.0/22 7,046 2026-09-12 17:38:46
207.196.192.0/21 6,985 2026-09-12 17:38:46
192.231.192.0/24 6,983 2026-09-12 17:38:46
207.196.240.0/21 6,981 2026-09-12 17:38:46
207.196.184.0/21 6,970 2026-09-12 17:38:46
192.207.124.0/24 6,966 2026-09-12 17:38:46
192.160.47.0/24 6,963 2026-09-12 17:38:46
207.196.153.0/24 6,963 2026-09-12 17:38:46
207.196.132.0/22 6,959 2026-09-12 17:38:46
207.196.175.0/24 6,959 2026-09-12 17:38:46
207.196.136.0/22 6,953 2026-09-12 17:38:46
207.196.167.0/24 6,953 2026-09-12 17:38:46
207.196.144.0/22 6,950 2026-09-12 17:38:46
207.196.158.0/23 6,947 2026-09-12 17:38:46
207.196.172.0/23 6,946 2026-09-12 17:38:46
207.196.178.0/24 6,946 2026-09-12 17:38:46
207.196.204.0/22 6,945 2026-09-12 17:38:46
207.196.200.0/22 6,944 2026-09-12 17:38:46
207.196.129.0/24 6,943 2026-09-12 17:38:46
207.196.174.0/24 6,943 2026-09-12 17:38:46
207.196.148.0/23 6,940 2026-09-12 17:38:46
207.196.154.0/23 6,940 2026-09-12 17:38:46
207.196.156.0/23 6,936 2026-09-12 17:38:46
207.196.140.0/22 6,935 2026-09-12 17:38:46
207.196.180.0/22 6,934 2026-09-12 17:38:46
207.196.176.0/23 6,933 2026-09-12 17:38:46

Frequently Asked Questions

What is AS3807?

AS3807 is an Autonomous System Number assigned to University of Montana. 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 AS3807 announce?

AS3807 announces 85.8K IPv4 addresses distributed across 22 routed CIDR prefixes. The network is registered in United States.

Who operates AS3807?

AS3807 is operated by University of Montana. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS3807 registered in?

AS3807 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-12 17:40:46 UTC
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