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Autonomous System

AS11840

VeriSign Infrastructure & Operations

Announced IPs
6,144
CIDR prefixes
18
ASN
AS11840

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 v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS11840 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)
216.87.136.0/24 AS11840, AS30060 2026-11-13 08:54:08

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS11840 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
209.112.125.0/24 107,729 2026-11-13 07:45:16
209.131.162.0/24 59,742 2026-11-13 08:51:52
216.87.136.0/24 32,656 2026-11-13 07:47:17
64.6.67.0/24 28,420 2026-11-13 07:06:52
64.6.68.0/24 22,859 2026-11-13 07:06:52
69.36.158.0/24 18,920 2026-11-13 07:06:52
72.13.46.0/24 13,939 2026-11-13 07:06:52
69.58.191.0/24 13,849 2026-11-13 07:06:52
72.13.37.0/24 13,828 2026-11-13 07:06:52
199.16.84.0/24 13,794 2026-11-13 07:40:48
72.13.38.0/24 13,741 2026-11-13 07:06:52
209.131.163.0/24 13,714 2026-11-13 07:45:16
209.131.180.0/24 13,658 2026-11-13 07:45:16
199.16.80.0/24 13,652 2026-11-13 07:40:48
199.16.82.0/24 13,629 2026-11-13 07:40:48
216.87.137.0/24 13,624 2026-11-13 07:47:17
199.16.81.0/24 13,619 2026-11-13 07:40:48
209.131.161.0/24 13,598 2026-11-13 07:45:16
209.131.181.0/24 13,570 2026-11-13 07:45:16
216.87.155.0/24 13,509 2026-11-13 07:47:17
209.131.160.0/24 13,436 2026-11-13 07:45:16
216.87.149.0/24 12,983 2026-11-13 08:18:05
69.36.145.0/24 4,641 2026-11-13 07:06:52
199.16.92.0/24 3,686 2026-11-13 07:40:48

Frequently Asked Questions

What is AS11840?

AS11840 is an Autonomous System Number assigned to VeriSign Infrastructure & Operations. 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 AS11840 announce?

AS11840 announces 6.1K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in United States.

Who operates AS11840?

AS11840 is operated by VeriSign Infrastructure & Operations. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS11840 registered in?

AS11840 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: 2026-11-13 08:54:05 UTC
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