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Autonomous System

AS13335

Cloudflare, Inc.

Announced IPs
1,459,456
CIDR prefixes
1,291
ASN
AS13335

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.

58/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Active-threat / abuse risk −12
  • Cdn allocation +5
  • Trust score 58 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About Cloudflare

Cloudflare, Inc., is an American technology company headquartered in San Francisco, California, that provides a range of internet services, including content delivery network (CDN) services, cloud cybersecurity, DDoS mitigation, and ICANN-accredited domain registration. The company's services act primarily as a reverse proxy between website visitors and a customer's hosting provider, improving performance and protecting against malicious traffic.

Founded
2009
Headquarters
San Francisco
Industry
information and communications technology
Employees
1,069

⚠ 4 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS13335 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)
154.223.134.0/23 AS13335, AS63199 2026-09-20 00:57:22
104.234.177.0/24 AS13335, AS402061 2026-09-19 09:57:17
147.189.42.0/24 AS4749, AS13335 2026-09-19 09:12:16
203.168.128.0/22 AS13335, AS209242 2026-09-19 04:57:15

Network profile

Source: PeeringDB →
Network type Content
Geographic scope Global
Traffic ratio Mostly Outbound
Peering policy Open
IRR record AS13335:AS-CLOUDFLARE

Present at 358 internet exchanges: Equinix Paris: Equinix IX - PA Metro, LINX LON1: Main, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, NL-ix: Main, Equinix Sydney, Equinix Tokyo, Equinix Miami, TorIX, IX Australia Sydney (NSW-IX): NSW-IX, Equinix Ashburn, …

Web3 footprint

AS13335 hosts 5 observed decentralized-network nodes across 2 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

AS13335 — global IP footprint

Cities where AS13335 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
104.16.0.0/14 262.1K
0.0%
Cloudflare, Inc. US
104.25.0.0/16 65.5K
0.0%
Cloudflare, Inc. US
104.28.0.0/16 65.5K
0.0%
Cloudflare, Inc. US Delaware Newark
172.65.0.0/16 65.5K
0.0%
Cloudflare, Inc. US
104.21.0.0/17 32.8K
0.0%
Cloudflare, Inc. US
104.24.128.0/17 32.8K
0.0%
Cloudflare, Inc. US
104.27.0.0/17 32.8K
0.0%
Cloudflare, Inc. US
152.114.0.0/17 32.8K
0.0%
Cloudflare, Inc. GB
172.67.128.0/17 32.8K
0.0%
Cloudflare, Inc. US
104.20.0.0/18 16.4K
0.0%
Cloudflare, Inc. US
104.24.0.0/18 16.4K
0.0%
Cloudflare, Inc. US
104.29.128.0/18 16.4K
0.0%
Cloudflare, Inc. US
150.48.128.0/18 16.4K
0.0%
Cloudflare, Inc. US
152.114.128.0/18 16.4K
0.0%
Cloudflare, Inc. GB
162.159.0.0/18 16.4K
13.5%
Cloudflare, Inc. US
172.67.64.0/18 16.4K
0.0%
Cloudflare, Inc. US
204.195.192.0/18 16.4K
0.0%
Cloudflare, Inc. US
104.21.192.0/19 8.2K
0.0%
Cloudflare, Inc. US
104.23.224.0/19 8.2K
0.0%
Cloudflare, Inc. US
104.24.64.0/19 8.2K
0.0%
Cloudflare, Inc. US
104.29.160.0/19 8.2K
0.0%
Cloudflare, Inc. US
104.30.0.0/19 8.2K
52.3%
Cloudflare, Inc. US
104.30.160.0/19 8.2K
0.0%
Cloudflare, Inc. US Arizona Phoenix
150.48.160.0/19 8.2K
0.0%
Cloudflare, Inc. US
162.158.160.0/19 8.2K
0.0%
Cloudflare, Inc. US
162.159.128.0/19 8.2K
0.0%
Cloudflare, Inc. US
172.64.32.0/19 8.2K
11.8%
Cloudflare, Inc. US
172.66.128.0/19 8.2K
0.0%
Cloudflare, Inc. US
16.5.144.0/20 4.1K
0.0%
Cloudflare, Inc. US
104.21.224.0/20 4.1K
0.0%
Cloudflare, Inc. US
104.23.160.0/20 4.1K
0.0%
Cloudflare, Inc. US
104.23.208.0/20 4.1K
0.0%
Cloudflare, Inc. US
104.23.224.0/20 4.1K
0.0%
Cloudflare, Inc. US
104.26.0.0/20 4.1K
0.0%
Cloudflare, Inc. US
104.27.192.0/20 4.1K
0.0%
Cloudflare, Inc. US
104.29.64.0/20 4.1K
0.0%
Cloudflare, Inc. US California Los Angeles
108.162.192.0/20 4.1K
24.1%
Cloudflare, Inc. US
141.101.112.0/20 4.1K
0.0%
Cloudflare, Inc. US
162.158.112.0/20 4.1K
0.0%
Cloudflare, Inc. US
162.158.160.0/20 4.1K
0.0%
Cloudflare, Inc. US
162.158.208.0/20 4.1K
0.0%
Cloudflare, Inc. US
162.158.224.0/20 4.1K
0.0%
Cloudflare, Inc. US
162.159.64.0/20 4.1K
0.0%
Cloudflare, Inc. US California San Francisco
162.159.144.0/20 4.1K
0.0%
Cloudflare, Inc. US
162.159.240.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.64.80.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.64.112.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.64.144.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.64.208.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.64.240.0/20 4.1K
0.0%
Cloudflare, Inc. US California Los Angeles
172.66.160.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.66.192.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.68.16.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.69.128.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.70.32.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.70.128.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.70.176.0/20 4.1K
0.0%
Cloudflare, Inc. US Illinois Chicago
172.70.240.0/20 4.1K
0.0%
Cloudflare, Inc. US
172.71.144.0/20 4.1K
0.0%
Cloudflare, Inc. US California San Jose
190.93.240.0/20 4.1K
0.0%
Cloudflare, Inc. CR
198.41.192.0/20 4.1K
0.0%
Cloudflare, Inc. US
203.168.192.0/20 4.1K
0.0%
Cloudflare, Inc. SG
94.194.72.0/21 2.0K
0.0%
Cloudflare, Inc. GB England Putney
94.194.152.0/21 2.0K
0.0%
Cloudflare, Inc. GB England Whitstable
94.194.208.0/21 2.0K
0.0%
Cloudflare, Inc. GB Scotland Inverness
94.194.232.0/21 2.0K
0.0%
Cloudflare, Inc. GB England Islington
104.22.8.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.22.16.0/21 2.0K
0.0%
Cloudflare, Inc. US California San Jose
104.22.104.0/21 2.0K
0.0%
Cloudflare, Inc. US Virginia Ashburn
104.22.112.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.22.176.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.23.184.0/21 2.0K
0.0%
Cloudflare, Inc. US New Jersey Newark
104.23.240.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.28.0.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.29.0.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.29.72.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.29.88.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.29.104.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.30.144.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.30.184.0/21 2.0K
0.0%
Cloudflare, Inc. US
104.31.0.0/21 2.0K
0.0%
Cloudflare, Inc. US
108.162.240.0/21 2.0K
0.0%
Cloudflare, Inc. US
150.48.136.0/21 2.0K
0.0%
Cloudflare, Inc. US
150.48.152.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.158.0.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.158.16.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.158.48.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.158.88.0/21 2.0K
0.0%
Cloudflare, Inc. US California Los Angeles
162.158.104.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.158.152.0/21 2.0K
0.0%
Cloudflare, Inc. US New Jersey Newark
162.158.184.0/21 2.0K
0.0%
Cloudflare, Inc. US California Los Angeles
162.158.208.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.158.232.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.158.240.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.159.72.0/21 2.0K
0.0%
Cloudflare, Inc. US California San Francisco
162.159.88.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.159.104.0/21 2.0K
0.0%
Cloudflare, Inc. US Texas Dallas
162.159.112.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.159.128.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.159.192.0/21 2.0K
0.0%
Cloudflare, Inc. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS13335 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
172.69.15.0/24 849,770 2026-09-20 00:47:40
172.69.97.0/24 635,378 2026-09-20 00:53:30
172.69.96.0/24 632,652 2026-09-20 00:53:30
172.69.79.0/24 598,727 2026-09-20 00:47:42
104.29.63.0/24 588,688 2026-08-10 23:40:18
162.158.33.0/24 584,857 2026-09-20 00:47:42
172.70.58.0/24 582,808 2026-09-20 00:47:42
172.69.247.0/24 581,100 2026-09-20 00:47:39
162.158.74.0/24 580,998 2026-09-20 00:46:57
162.158.75.0/24 580,652 2026-09-20 00:46:57
162.158.32.0/24 579,511 2026-09-20 00:47:42
172.68.205.0/24 578,036 2026-09-20 00:47:39
172.70.56.0/24 577,796 2026-09-20 00:47:42
172.68.215.0/24 574,824 2026-09-20 00:47:39
162.158.73.0/24 573,504 2026-09-20 00:46:57
162.159.210.0/24 435,980 2026-09-20 00:22:07
172.70.155.0/24 409,194 2026-09-20 00:53:30
172.68.198.0/24 363,418 2026-09-20 00:47:39
172.68.90.0/24 292,919 2026-09-20 00:47:39
172.68.217.0/24 242,886 2026-09-19 23:22:58
172.64.207.0/24 238,869 2026-09-20 00:47:40
172.64.208.0/24 238,199 2026-09-20 00:47:40
104.23.186.0/24 238,060 2026-09-20 00:47:39
104.23.185.0/24 199,619 2026-09-19 23:21:58
104.23.249.0/24 187,508 2026-09-03 16:42:11
104.22.126.0/24 183,680 2026-09-20 00:47:41
104.22.124.0/24 180,846 2026-09-20 00:47:41
104.22.125.0/24 180,449 2026-09-20 00:47:41
172.68.249.0/24 162,290 2026-09-20 00:46:54
162.158.50.0/24 155,929 2026-09-20 00:54:54
172.68.60.0/22 153,161 2026-09-20 00:46:54
172.69.241.0/24 142,361 2026-09-20 00:46:55
104.23.208.0/24 129,123 2026-09-20 00:47:41
172.70.159.0/24 125,304 2026-09-19 23:22:58
172.68.6.0/24 125,166 2026-09-20 00:46:26
172.68.76.0/24 122,188 2026-09-20 00:54:13
172.69.245.0/24 121,032 2026-09-20 00:46:57
173.245.49.0/24 113,454 2026-09-20 00:46:57
172.69.91.0/24 113,064 2026-09-20 00:47:41
172.69.208.0/24 111,876 2026-09-20 00:47:41
104.22.185.0/24 110,849 2026-09-20 00:47:18
104.22.184.0/24 110,605 2026-09-20 00:47:18
172.71.17.0/24 110,180 2026-09-19 23:24:00
172.70.236.0/24 110,068 2026-09-20 00:46:56
172.68.187.0/24 109,300 2026-09-19 23:22:28
172.69.196.0/24 102,506 2026-09-20 00:54:13
172.68.97.0/24 102,258 2026-09-20 00:53:40
104.23.164.0/24 101,976 2026-09-20 00:50:57
172.68.177.0/24 101,858 2026-09-20 00:53:53
172.69.104.0/24 101,780 2026-09-20 00:47:40

Showing top 50 of 2,756 announced prefixes by sample volume.

Frequently Asked Questions

What is AS13335?

AS13335 is an Autonomous System Number assigned to Cloudflare, 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 AS13335 announce?

AS13335 announces 1.46M IPv4 addresses distributed across 1,291 routed CIDR prefixes. The network is registered in United States.

Who operates AS13335?

AS13335 is operated by Cloudflare, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS13335 registered in?

AS13335 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: 2026-09-20 00:54:06 UTC
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