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Autonomous System

AS19750

Criteo Corp.

Announced IPs
1,536
CIDR prefixes
6
ASN
AS19750

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 →

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS19750 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)
91.212.98.0/24 AS19750, AS44788 2026-07-21 22:23:15
91.199.242.0/24 AS19750, AS44788 2026-07-21 22:23:15

Network profile

Source: PeeringDB →
Network type Content
Geographic scope North America
Traffic ratio Balanced
Peering policy Selective
IRR record AS-CRITEO-USA

Present at 1 internet exchange: Equinix Ashburn

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
74.119.117.0/24 256
1.6%
Criteo Corp. US
74.119.118.0/24 256
2.3%
Criteo Corp. US
91.199.242.0/24 256
0.4%
Criteo Corp. FR
91.212.98.0/24 256
0.0%
Criteo Corp. FR
199.204.168.0/24 256
0.0%
Criteo Corp. US
199.204.171.0/24 256
0.0%
Criteo Corp. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS19750 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
199.204.171.0/24 10,392 2026-07-21 21:36:38
74.119.118.0/24 10,287 2026-07-21 21:36:27
74.119.117.0/24 7,963 2026-07-21 21:36:26
199.204.168.0/24 7,918 2026-07-21 21:36:37
91.199.242.0/24 4,800 2026-07-21 19:10:36
91.212.98.0/24 4,491 2026-07-21 19:10:36

Frequently Asked Questions

What is AS19750?

AS19750 is an Autonomous System Number assigned to Criteo Corp.. 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 AS19750 announce?

AS19750 announces 1.5K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in United States.

Who operates AS19750?

AS19750 is operated by Criteo Corp.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS19750 registered in?

AS19750 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: 2026-07-21 22:25:31 UTC
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