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Autonomous System

AS36631

VeriSign Global Registry Services

Announced IPs
1,280
CIDR prefixes
5
ASN
AS36631

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 →

⚠ 15 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS36631 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.

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS36631 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
192.43.172.0/24 4,469 2026-11-06 13:18:17
192.42.93.0/24 4,461 2026-11-06 13:18:17
192.35.51.0/24 4,451 2026-11-06 13:18:17
192.54.112.0/24 4,444 2026-11-06 16:46:22
192.34.234.0/24 3,588 2026-11-06 19:50:25
198.17.208.0/24 2,737 2026-11-06 19:50:02
192.81.185.0/24 2,727 2026-11-06 19:50:02
209.112.127.0/24 2,567 2026-11-06 19:50:02
185.100.0.0/24 2,359 2026-11-06 19:49:47
192.42.174.0/24 2,323 2026-11-06 19:49:47
192.42.178.0/24 2,291 2026-11-06 19:49:47
192.82.134.0/24 547 2026-11-06 13:18:48
192.42.176.0/24 542 2026-11-06 13:18:48
192.58.128.0/24 423 2026-11-06 17:20:19
199.7.71.0/24 421 2026-11-06 13:18:16

Frequently Asked Questions

What is AS36631?

AS36631 is an Autonomous System Number assigned to VeriSign Global Registry Services. 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 AS36631 announce?

AS36631 announces 1.3K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in United States.

Who operates AS36631?

AS36631 is operated by VeriSign Global Registry Services. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS36631 registered in?

AS36631 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: 2026-11-06 23:54:06 UTC
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