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Autonomous System

AS16957

Idaho Power Company

Announced IPs
1,536
CIDR prefixes
2
ASN
AS16957

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
204.76.192.0/22 1.0K
0.0%
Idaho Power Company US Idaho Boise
204.76.190.0/23 512
0.0%
Idaho Power Company US Idaho Boise

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS16957 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
204.76.190.0/24 10,414 2026-08-03 02:03:27
204.76.191.0/24 9,250 2026-08-03 02:03:22
204.76.192.0/22 7,362 2026-08-03 02:03:27

Frequently Asked Questions

What is AS16957?

AS16957 is an Autonomous System Number assigned to Idaho Power Company. 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 AS16957 announce?

AS16957 announces 1.5K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United States.

Who operates AS16957?

AS16957 is operated by Idaho Power Company. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS16957 registered in?

AS16957 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: 2026-08-03 02:10:31 UTC
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