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Autonomous System

AS20111

Lenovo (United States) Inc.

Announced IPs
1,280
CIDR prefixes
4
ASN
AS20111

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 5 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS20111 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
104.232.224.0/23 AS20111, AS138007 2026-07-23 18:53:41
144.188.134.0/24 AS20111, AS138007 2026-07-23 18:53:41
104.232.233.0/24 AS20111, AS138005 2026-07-23 18:53:41
104.232.228.0/24 AS20111, AS138007 2026-07-23 18:53:41
144.188.129.0/24 AS20111, AS138007 2026-07-23 18:53:41

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
104.232.224.0/23 512
0.0%
Lenovo United States Inc. US
104.232.228.0/24 256
0.0%
Lenovo United States Inc. US
144.188.129.0/24 256
3.5%
Lenovo United States Inc. US
144.188.134.0/24 256
0.0%
Lenovo United States Inc. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS20111 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
144.188.134.0/24 3,268 2026-07-23 06:07:06
104.232.228.0/24 2,145 2026-07-23 06:07:06
104.232.224.0/23 2,137 2026-07-23 06:07:06
144.188.129.0/24 2,093 2026-07-23 06:07:06
104.232.232.0/24 421 2026-07-23 17:50:49
104.232.233.0/24 420 2026-07-23 17:50:49
103.30.232.0/23 11 2026-06-03 16:50:29
104.232.254.0/23 11 2026-06-03 16:50:29
104.232.253.0/24 11 2026-06-03 16:50:29

Frequently Asked Questions

What is AS20111?

AS20111 is an Autonomous System Number assigned to Lenovo (United States) Inc.. 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 AS20111 announce?

AS20111 announces 1.3K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in United States.

Who operates AS20111?

AS20111 is operated by Lenovo United States Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS20111 registered in?

AS20111 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: 2026-07-23 18:55:31 UTC
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