Skip to main content
Autonomous System

AS401518

OpenAI OpCo, LLC

Announced IPs
512
CIDR prefixes
1
ASN
AS401518

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
199.47.142.0/23 512
0.0%
OpenAI OpCo, LLC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS401518 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
199.47.142.0/23 17,457 2026-08-02 03:55:34

Frequently Asked Questions

What is AS401518?

AS401518 is an Autonomous System Number assigned to OpenAI OpCo, LLC. 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 AS401518 announce?

AS401518 announces 512 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS401518?

AS401518 is operated by OpenAI OpCo, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS401518 registered in?

AS401518 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: 2026-08-02 03:55:31 UTC
Share