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Autonomous System

AS31929

Great River Energy

Announced IPs
8,448
CIDR prefixes
2
ASN
AS31929

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.

65/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
204.88.64.0/19 8.2K
0.9%
Great River Energy US Minnesota Becker
50.235.175.0/24 256
1.2%
Great River Energy US Minnesota Jordan

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS31929 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
204.88.93.0/24 5,319 2026-07-28 11:09:59
50.235.175.0/24 4,313 2026-07-28 11:24:47
204.88.92.0/24 4,064 2026-07-28 10:12:14
204.88.64.0/19 3,917 2026-07-28 10:16:10

Frequently Asked Questions

What is AS31929?

AS31929 is an Autonomous System Number assigned to Great River Energy. 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 AS31929 announce?

AS31929 announces 8.4K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United States.

Who operates AS31929?

AS31929 is operated by Great River Energy. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS31929 registered in?

AS31929 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: 2026-07-28 11:40:32 UTC
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