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Autonomous System

AS33425

CoreWeave, Inc

Announced IPs
95,232
CIDR prefixes
6
ASN
AS33425

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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Geographic scope Global
Traffic ratio Not Disclosed
Peering policy Selective
IRR record AS33425:AS-CONE

Present at 15 internet exchanges: Equinix Ashburn, TorIX, Equinix Dallas, Equinix New York, Equinix San Jose, Equinix Chicago, Equinix Atlanta, DE-CIX Chicago, DE-CIX Dallas: DE-CIX Dallas Peering LAN, DE-CIX New York: DE-CIX New York Peering LAN, …

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
166.19.0.0/16 65.5K
0.0%
CoreWeave, Inc US
83.228.128.0/18 16.4K
0.0%
CoreWeave, Inc GB
83.228.160.0/19 8.2K
0.0%
CoreWeave, Inc US
166.19.32.0/19 8.2K
0.0%
CoreWeave, Inc US
166.19.96.0/19 8.2K
0.0%
CoreWeave, Inc US
166.19.160.0/19 8.2K
0.0%
CoreWeave, Inc US
166.19.192.0/19 8.2K
0.0%
CoreWeave, Inc US
166.19.16.0/20 4.1K
0.0%
CoreWeave, Inc US
166.19.80.0/20 4.1K
0.0%
CoreWeave, Inc US
166.19.128.0/20 4.1K
0.0%
CoreWeave, Inc US
192.112.160.0/20 4.1K
0.0%
CoreWeave, Inc US
198.176.96.0/20 4.1K
0.0%
CoreWeave, Inc US Illinois Chicago
216.153.48.0/20 4.1K
1.3%
CoreWeave, Inc US New York New York
83.228.152.0/21 2.0K
0.0%
CoreWeave, Inc US
166.19.8.0/21 2.0K
0.0%
CoreWeave, Inc US
166.19.64.0/21 2.0K
0.0%
CoreWeave, Inc US
166.19.144.0/21 2.0K
0.0%
CoreWeave, Inc US
166.19.232.0/21 2.0K
0.0%
CoreWeave, Inc US
166.19.240.0/21 2.0K
0.0%
CoreWeave, Inc US
192.112.168.0/21 2.0K
0.0%
CoreWeave, Inc US
83.228.128.0/22 1.0K
0.0%
CoreWeave, Inc US
166.19.4.0/22 1.0K
0.0%
CoreWeave, Inc US
166.19.76.0/22 1.0K
0.0%
CoreWeave, Inc US
166.19.152.0/22 1.0K
0.0%
CoreWeave, Inc US
166.19.228.0/22 1.0K
0.0%
CoreWeave, Inc US
192.112.164.0/22 1.0K
0.0%
CoreWeave, Inc US
207.53.232.0/22 1.0K
2.9%
CoreWeave, Inc US New Jersey Springfield
83.228.132.0/23 512
0.0%
CoreWeave, Inc US
83.228.134.0/23 512
0.0%
CoreWeave, Inc GB
83.228.138.0/23 512
0.0%
CoreWeave, Inc GB
83.228.140.0/23 512
0.0%
CoreWeave, Inc US
83.228.146.0/23 512
0.0%
CoreWeave, Inc GB
166.19.72.0/23 512
0.0%
CoreWeave, Inc US
166.19.226.0/23 512
0.0%
CoreWeave, Inc US
166.19.250.0/23 512
0.0%
CoreWeave, Inc US
166.19.254.0/23 512
0.0%
CoreWeave, Inc US
192.112.162.0/23 512
0.0%
CoreWeave, Inc US
83.228.136.0/24 256
0.0%
CoreWeave, Inc GB
83.228.137.0/24 256
0.0%
CoreWeave, Inc US
83.228.142.0/24 256
0.0%
CoreWeave, Inc US
83.228.143.0/24 256
0.0%
CoreWeave, Inc GB
83.228.144.0/24 256
0.0%
CoreWeave, Inc GB
83.228.145.0/24 256
0.0%
CoreWeave, Inc US
83.228.148.0/24 256
0.0%
CoreWeave, Inc GB
83.228.149.0/24 256
0.0%
CoreWeave, Inc US
83.228.150.0/24 256
0.0%
CoreWeave, Inc US
83.228.151.0/24 256
0.0%
CoreWeave, Inc SE
166.19.74.0/24 256
0.0%
CoreWeave, Inc US
166.19.157.0/24 256
0.0%
CoreWeave, Inc US
166.19.158.0/24 256
0.0%
CoreWeave, Inc US
166.19.249.0/24 256
0.0%
CoreWeave, Inc US
166.19.253.0/24 256
0.0%
CoreWeave, Inc US
166.19.0.0/25 128
0.0%
CoreWeave, Inc US
166.19.75.0/25 128
0.0%
CoreWeave, Inc US
166.19.156.0/25 128
0.0%
CoreWeave, Inc US
166.19.159.128/25 128
0.0%
CoreWeave, Inc US
166.19.225.128/25 128
0.0%
CoreWeave, Inc US
166.19.252.128/25 128
0.0%
CoreWeave, Inc US
192.112.160.0/25 128
0.0%
CoreWeave, Inc US
192.112.161.128/25 128
0.0%
CoreWeave, Inc US
166.19.0.192/26 64
0.0%
CoreWeave, Inc US
166.19.1.192/26 64
0.0%
CoreWeave, Inc NO
166.19.75.192/26 64
0.0%
CoreWeave, Inc CA
166.19.156.128/26 64
0.0%
CoreWeave, Inc US
166.19.248.64/26 64
0.0%
CoreWeave, Inc US
166.19.248.192/26 64
0.0%
CoreWeave, Inc US
166.19.252.64/26 64
0.0%
CoreWeave, Inc US
192.112.161.64/26 64
0.0%
CoreWeave, Inc US
166.19.0.160/27 32
0.0%
CoreWeave, Inc US
166.19.3.32/27 32
0.0%
CoreWeave, Inc US
166.19.75.160/27 32
0.0%
CoreWeave, Inc CA
166.19.159.32/27 32
0.0%
CoreWeave, Inc US
166.19.159.96/27 32
0.0%
CoreWeave, Inc US
166.19.224.32/27 32
0.0%
CoreWeave, Inc US
166.19.225.32/27 32
0.0%
CoreWeave, Inc US
166.19.225.96/27 32
0.0%
CoreWeave, Inc US
166.19.248.0/27 32
0.0%
CoreWeave, Inc US
166.19.252.0/27 32
0.0%
CoreWeave, Inc US
192.112.160.224/27 32
0.0%
CoreWeave, Inc US
166.19.0.144/28 16
0.0%
CoreWeave, Inc US
166.19.1.80/28 16
0.0%
CoreWeave, Inc GB
166.19.1.128/28 16
0.0%
CoreWeave, Inc US
166.19.1.160/28 16
0.0%
CoreWeave, Inc US
166.19.2.0/28 16
0.0%
CoreWeave, Inc NO
166.19.2.64/28 16
0.0%
CoreWeave, Inc SE
166.19.2.96/28 16
0.0%
CoreWeave, Inc NL
166.19.3.0/28 16
0.0%
CoreWeave, Inc CA
166.19.3.64/28 16
0.0%
CoreWeave, Inc US
166.19.3.112/28 16
0.0%
CoreWeave, Inc US
166.19.3.208/28 16
0.0%
CoreWeave, Inc US
166.19.3.224/28 16
0.0%
CoreWeave, Inc US
166.19.75.144/28 16
0.0%
CoreWeave, Inc CA
166.19.156.208/28 16
0.0%
CoreWeave, Inc US
166.19.156.240/28 16
0.0%
CoreWeave, Inc US
166.19.159.16/28 16
0.0%
CoreWeave, Inc US
166.19.159.80/28 16
0.0%
CoreWeave, Inc US
166.19.224.144/28 16
0.0%
CoreWeave, Inc US
166.19.224.240/28 16
0.0%
CoreWeave, Inc US
166.19.225.16/28 16
0.0%
CoreWeave, Inc US
166.19.225.80/28 16
0.0%
CoreWeave, Inc US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS33425 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
166.19.152.0/22 12,601 2026-07-13 06:46:18
207.53.232.0/22 6,309 2026-07-21 17:40:19
83.228.128.0/18 5,023 2026-07-21 17:39:49
192.112.160.0/20 4,978 2026-07-21 17:39:49
166.19.0.0/16 4,948 2026-07-21 17:39:49
198.176.96.0/20 4,733 2026-07-21 17:38:54
216.153.48.0/20 4,659 2026-07-21 17:38:54
166.19.49.0/24 29 2026-07-17 22:54:39

Frequently Asked Questions

What is AS33425?

AS33425 is an Autonomous System Number assigned to CoreWeave, 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 AS33425 announce?

AS33425 announces 95.2K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in United States.

Who operates AS33425?

AS33425 is operated by CoreWeave, Inc. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS33425 registered in?

AS33425 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 17:55:32 UTC
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