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Autonomous System

AS25660

Fidium

Announced IPs
12,800
CIDR prefixes
13
ASN
AS25660

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 →

AS25660 — global IP footprint

Cities where AS25660 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
206.221.144.0/20 4.1K
44.3%
Fidium US Illinois Champaign
192.241.48.0/21 2.0K
65.9%
Fidium US
204.11.72.0/21 2.0K
96.4%
Fidium US Illinois Champaign
104.193.76.0/22 1.0K
99.5%
Fidium US
192.241.48.0/22 1.0K
75.4%
Fidium US
192.241.56.0/22 1.0K
69.4%
Fidium US
208.92.196.0/22 1.0K
75.5%
Fidium US Illinois Urbana
140.177.16.0/23 512
1.2%
Fidium US Illinois Champaign
192.241.52.0/23 512
77.5%
Fidium US
192.241.60.0/23 512
73.0%
Fidium US
64.198.221.0/24 256
0.0%
Fidium US
192.241.55.0/24 256
70.3%
Fidium US
192.241.63.0/24 256
77.0%
Fidium US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS25660 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
206.221.152.0/23 14,478 2026-07-24 14:52:26
206.221.154.0/23 14,477 2026-07-24 14:48:48
64.198.221.0/24 5,153 2026-07-24 14:52:26
104.193.78.0/23 5,032 2026-07-24 14:52:26
206.221.156.0/22 5,017 2026-07-24 14:52:26
104.193.76.0/23 5,017 2026-07-24 14:52:26
192.241.60.0/24 5,015 2026-07-24 14:52:26
206.221.144.0/21 5,011 2026-07-24 14:52:26
192.241.63.0/24 5,009 2026-07-24 14:52:26
204.11.72.0/24 5,002 2026-07-24 14:52:26
192.241.56.0/21 5,002 2026-07-24 14:52:26
206.221.144.0/20 5,002 2026-07-24 14:52:26
204.11.76.0/24 4,998 2026-07-24 14:52:26
192.241.61.0/24 4,997 2026-07-24 14:52:26
204.11.72.0/22 4,997 2026-07-24 14:52:26
140.177.16.0/24 4,992 2026-07-24 14:52:26
140.177.17.0/24 4,988 2026-07-24 14:52:26
208.92.196.0/22 4,987 2026-07-24 14:52:26
204.11.72.0/21 4,985 2026-07-24 14:52:26
204.11.76.0/22 4,970 2026-07-24 14:52:26
104.193.76.0/22 4,700 2026-07-24 14:52:26
192.241.48.0/20 4,687 2026-07-24 14:52:26

Frequently Asked Questions

What is AS25660?

AS25660 is an Autonomous System Number assigned to Fidium. 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 AS25660 announce?

AS25660 announces 12.8K IPv4 addresses distributed across 13 routed CIDR prefixes. The network is registered in United States.

Who operates AS25660?

AS25660 is operated by Fidium. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS25660 registered in?

AS25660 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: 2026-07-24 15:10:32 UTC
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