$ query “AS13335” --type=asn → 1 result(s)

AS13335 · CLOUDFLARENET (CLOUDFLARENET ☁️)

Cloudflare Inc.

AS13335 belongs to Cloudflare Inc. and is a major transit provider, established in the United States in 2010. The system announces an impressive 1.5 million IPv4 addresses, including a /14, and supports IPv6. The bulk of its IP address space is in the United States, with additional presence in the United Kingdom and Germany, and smaller footprints in 54 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #65 by Reach — Top 100 by customer cone size
  • #56 by Degree — Top 100 by unique BGP neighbor count

Basic Information

Country
🇺🇸 United States
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
July 14, 2010
Last Changed
October 01, 2026
Last Seen
October 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
2 677 / 1 094
IPv6 Prefixes (raw / aggregated)
3 041 / 1 647
IPv4 Addresses
1 451 776
Largest IPv4 Prefix
/14 (262 144 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇺🇸 United States (1 278 720 IPs), 🇬🇧 United Kingdom (64 256 IPs), 🇩🇪 Germany (13 328 IPs) and 54 more
Prefix Changed
October 11, 2026

Reputation

Reputation
Good — 142 flagged IPs out of 1 451 776 total (0.01%)

Connectivity Summary

Upstream Providers
107 upstreams providing transit
Peers
838 networks exchanging traffic without transit
Downstream Customers
1 021 downstreams buying transit
Unclassified
46 unclassified BGP neighbors
Degree
2 012 unique BGP neighbors
Reach
1 021 networks in customer cone

Upstream Providers (107)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS174 — COGENT-174 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS37468 — ANGOLA-CABLES
  • AS7018 — ATT-INTERNET4 (Tier-1 transit)
  • AS3216 — SOVAM-AS
  • AS37100 — SEACOM-AS
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS12389 — ROSTELECOM-AS
  • and 97 more

Prefix Lists

IPv4 Prefixes (2 677 total)

  • 104.16.0.0/14 (262 144 addresses (/14 prefix))
  • 104.25.0.0/16 (65 536 addresses (/16 prefix))
  • 104.28.0.0/16 (65 536 addresses (/16 prefix))
  • 172.65.0.0/16 (65 536 addresses (/16 prefix))
  • 104.21.0.0/17 (32 768 addresses (/17 prefix))
  • 104.24.128.0/17 (32 768 addresses (/17 prefix))
  • 104.27.0.0/17 (32 768 addresses (/17 prefix))
  • 152.114.0.0/17 (32 768 addresses (/17 prefix))
  • 172.67.128.0/17 (32 768 addresses (/17 prefix))
  • 104.20.0.0/18 (16 384 addresses (/18 prefix))
  • 104.24.0.0/18 (16 384 addresses (/18 prefix))
  • 104.29.128.0/18 (16 384 addresses (/18 prefix))
  • 150.48.128.0/18 (16 384 addresses (/18 prefix))
  • 152.114.128.0/18 (16 384 addresses (/18 prefix))
  • 162.159.0.0/18 (16 384 addresses (/18 prefix))
  • 172.67.64.0/18 (16 384 addresses (/18 prefix))
  • 204.195.192.0/18 (16 384 addresses (/18 prefix))
  • 104.21.192.0/19 (8 192 addresses (/19 prefix))
  • 104.24.64.0/19 (8 192 addresses (/19 prefix))
  • 104.30.0.0/19 (8 192 addresses (/19 prefix))
  • 104.30.160.0/19 (8 192 addresses (/19 prefix))
  • 162.159.128.0/19 (8 192 addresses (/19 prefix))
  • 172.64.32.0/19 (8 192 addresses (/19 prefix))
  • 172.66.128.0/19 (8 192 addresses (/19 prefix))
  • 16.5.144.0/20 (4 096 addresses (/20 prefix))
  • 90.96.176.0/20 (4 096 addresses (/20 prefix))
  • 104.21.224.0/20 (4 096 addresses (/20 prefix))
  • 104.23.160.0/20 (4 096 addresses (/20 prefix))
  • 104.23.208.0/20 (4 096 addresses (/20 prefix))
  • 104.23.224.0/20 (4 096 addresses (/20 prefix))
  • 104.26.0.0/20 (4 096 addresses (/20 prefix))
  • 104.27.192.0/20 (4 096 addresses (/20 prefix))
  • 104.29.192.0/20 (4 096 addresses (/20 prefix))
  • 108.162.192.0/20 (4 096 addresses (/20 prefix))
  • 141.101.112.0/20 (4 096 addresses (/20 prefix))
  • 162.158.112.0/20 (4 096 addresses (/20 prefix))
  • 162.158.160.0/20 (4 096 addresses (/20 prefix))
  • 162.158.208.0/20 (4 096 addresses (/20 prefix))
  • 162.159.64.0/20 (4 096 addresses (/20 prefix))
  • 162.159.240.0/20 (4 096 addresses (/20 prefix))
  • 172.64.80.0/20 (4 096 addresses (/20 prefix))
  • 172.64.112.0/20 (4 096 addresses (/20 prefix))
  • 172.64.144.0/20 (4 096 addresses (/20 prefix))
  • 172.64.208.0/20 (4 096 addresses (/20 prefix))
  • 172.64.240.0/20 (4 096 addresses (/20 prefix))
  • 172.66.160.0/20 (4 096 addresses (/20 prefix))
  • 172.66.192.0/20 (4 096 addresses (/20 prefix))
  • 172.68.16.0/20 (4 096 addresses (/20 prefix))
  • 172.70.32.0/20 (4 096 addresses (/20 prefix))
  • 172.70.128.0/20 (4 096 addresses (/20 prefix))

IPv6 Prefixes (3 041 total)

  • 2a0a:6c80::/29
  • 2a09:bac4::/30
  • 2a09:bac2::/31
  • 2401:9860::/32
  • 2405:b500::/32
  • 2606:54c0::/32
  • 2a09:bac1::/32
  • 2c0f:f248::/32
  • 2607:8940:2000::/35
  • 2405:8100:c000::/38
  • 2602:f660:80::/41
  • 2606:4700:3000::/42
  • 2606:4700::/43
  • 2606:4700:60::/43
  • 2606:4700:80::/43
  • 2606:4700:4000::/43
  • 2606:4700:90c0::/43
  • 2401:c2e0:8000::/44
  • 2606:4700:20::/44
  • 2606:4700:50::/44
  • 2606:4700:d0::/44
  • 2606:4700:130::/44
  • 2606:4700:3110::/44
  • 2606:4700:4400::/44
  • 2606:4700:8390::/44
  • 2606:4700:83b0::/44
  • 2606:4700:8ca0::/44
  • 2606:4700:8d70::/44
  • 2606:4700:8d90::/44
  • 2606:4700:8dd0::/44
  • 2606:4700:8de0::/44
  • 2606:4700:91b0::/44
  • 2606:4700:9640::/44
  • 2606:4700:9760::/44
  • 2606:4700:99e0::/44
  • 2606:4700:9a60::/44
  • 2606:4700:9a90::/44
  • 2606:4700:9ad0::/44
  • 2606:4700:9ae0::/44
  • 2606:4700:9b00::/44
  • 2606:4700:9c60::/44
  • 2a02:d21:20::/44
  • 2a06:98c0:1c20::/44
  • 2a06:98c1:3100::/44
  • 2400:cb00:190::/45
  • 2400:cb00:720::/45
  • 2400:cb00:960::/45
  • 2400:cb00:a150::/45
  • 2400:cb00:b780::/45
  • 2400:cb00:b790::/45