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Autonomous System

AS13335

Cloudflare, Inc.

Announced IPs
1,412,864
CIDR prefixes
1,135
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
  • Multiple-origin (MOAS) routing anomaly −12
  • Cdn allocation +5
  • Trust score 58 / 100

Experimental · trust-vectors model v1.1.0 — 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

⚠ 2 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 2026-07-18 10:52:44
202.49.114.0/24 AS13335, AS152719 2026-07-18 10:52:44

Network profile

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

Present at 354 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 3 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 New York Brooklyn
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%
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%
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
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
162.159.240.0/20 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
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
104.23.184.0/21 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%
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%
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%
US
150.48.152.0/21 2.0K
0.0%
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
162.159.104.0/21 2.0K
0.0%
Cloudflare, Inc. US Texas Dallas
162.159.112.0/21 2.0K
0.0%
Cloudflare, Inc. US
162.159.192.0/21 2.0K
0.0%
Cloudflare, Inc. US
172.66.40.0/21 2.0K
0.0%
Cloudflare, Inc. US
172.66.208.0/21 2.0K
0.0%
Cloudflare, Inc. US
172.68.32.0/21 2.0K
0.0%
Cloudflare, Inc. US Colorado Denver
172.68.48.0/21 2.0K
0.0%
Cloudflare, Inc. US
172.68.176.0/21 2.0K
0.0%
Cloudflare, Inc. US
172.68.192.0/21 2.0K
0.0%
Cloudflare, Inc. US
172.68.208.0/21 2.0K
0.0%
Cloudflare, Inc. US
172.69.16.0/21 2.0K
0.0%
Cloudflare, Inc. US California San Jose
172.69.64.0/21 2.0K
0.0%
Cloudflare, Inc. US Texas Dallas
172.69.120.0/21 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
172.69.15.0/24 842,669 2026-07-18 09:48:55
172.69.79.0/24 584,785 2026-07-18 10:24:18
104.29.63.0/24 576,380 2026-07-18 10:24:18
172.70.58.0/24 568,013 2026-07-18 10:24:18
172.69.247.0/24 567,403 2026-07-18 10:24:18
162.158.74.0/24 565,968 2026-07-18 10:24:18
162.158.75.0/24 565,965 2026-07-18 10:24:18
162.158.32.0/24 564,840 2026-07-18 10:24:18
172.68.205.0/24 564,075 2026-07-18 10:24:18
172.70.56.0/24 563,040 2026-07-18 10:24:18
162.158.33.0/24 562,379 2026-07-18 10:24:18
172.68.215.0/24 560,982 2026-07-18 10:24:18
162.158.73.0/24 558,811 2026-07-18 10:24:18
162.159.210.0/24 245,583 2026-07-18 10:44:30
104.23.185.0/24 148,900 2026-07-18 09:48:11
172.68.90.0/24 140,035 2026-07-18 08:55:15
172.68.217.0/24 114,909 2026-07-18 09:48:51
104.23.249.0/24 114,765 2026-07-13 06:46:22
172.68.249.0/24 111,978 2026-07-18 09:48:59
104.23.208.0/24 100,395 2026-07-18 09:48:11
172.68.60.0/22 95,312 2026-07-18 10:24:19
104.23.183.0/24 85,076 2026-07-18 10:24:17
172.70.159.0/24 84,431 2026-07-18 09:48:53
172.64.207.0/24 83,154 2026-07-18 09:48:57
104.23.186.0/24 83,080 2026-07-18 09:48:12
104.23.184.0/24 82,952 2026-07-18 10:24:17
172.64.208.0/24 82,207 2026-07-18 09:48:57
104.23.181.0/24 81,404 2026-07-18 10:24:17
104.23.182.0/24 81,293 2026-07-18 10:24:17
172.69.241.0/24 81,160 2026-07-18 09:48:54
104.23.180.0/24 80,981 2026-07-18 10:24:17
172.71.185.0/24 79,297 2026-07-18 10:24:19
172.70.112.0/24 76,852 2026-07-18 10:24:17
172.69.182.0/24 76,741 2026-07-18 10:24:17
172.70.228.0/24 76,564 2026-07-18 10:24:17
173.245.49.0/24 75,675 2026-07-18 10:39:36
172.69.104.0/24 75,265 2026-07-18 10:34:33
172.70.51.0/24 75,148 2026-07-18 10:24:17
162.158.218.0/24 73,977 2026-07-18 10:08:45
104.23.233.0/24 73,619 2026-07-18 09:48:12
162.158.29.0/24 73,616 2026-07-18 10:08:45
172.68.153.0/24 73,389 2026-07-18 10:08:45
162.158.43.0/24 73,201 2026-07-18 10:08:45
172.68.208.0/24 72,781 2026-07-18 10:08:45
172.69.249.0/24 72,714 2026-07-18 10:08:45
104.23.232.0/24 72,702 2026-07-18 09:48:12
104.22.23.0/24 71,703 2026-07-18 10:41:47
104.22.16.0/24 70,354 2026-07-18 09:48:12
172.64.178.0/24 69,632 2026-07-18 10:08:45
8.18.113.0/24 64,322 2026-07-13 06:46:37

Showing top 50 of 2,568 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 1.41M IPv4 addresses distributed across 1,135 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: 2026-07-18 10:40:31 UTC
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