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

AS13335 · CLOUDFLARENET-AS (CLOUDFLARENET-AS ☁️)

Cloudflare Inc.

AS13335 is operated by Cloudflare Inc. and serves as a major transit provider, established in the United States in 2015. The system announces an impressive 1.3 million IPv4 addresses, including a /14, and supports IPv6. Its primary geographic footprint is in the United States, with additional presence in the United Kingdom and Australia, and smaller footprints in 51 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #60 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
October 08, 2015
Last Changed
May 10, 2026
Last Seen
August 06, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
2 331 / 841
IPv6 Prefixes (raw / aggregated)
2 922 / 1 579
IPv4 Addresses
1 341 696
Largest IPv4 Prefix
/14 (262 144 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇺🇸 United States (1 243 392 IPs), 🇬🇧 United Kingdom (103 680 IPs), 🇦🇺 Australia (9 984 IPs) and 51 more
Prefix Changed
August 07, 2026

Reputation

Reputation
Good — 193 flagged IPs out of 1 341 696 total (0.01%)

Connectivity Summary

Upstream Providers
95 upstreams providing transit
Peers
863 networks exchanging traffic without transit
Downstream Customers
981 downstreams buying transit
Unclassified
51 unclassified BGP neighbors
Degree
1 990 unique BGP neighbors
Reach
39 259 networks in customer cone

Upstream Providers (95)

  • AS174 — COGENT (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS6461 — MFNX (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)
  • AS30844 — LIQUID-AS
  • and 85 more

Prefix Lists

IPv4 Prefixes (2 331 total)

  • 104.16.0.0/14 (262 144 addresses (/14 prefix))
  • 104.28.0.0/16 (65 536 addresses (/16 prefix))
  • 104.25.0.0/16 (65 536 addresses (/16 prefix))
  • 172.65.0.0/16 (65 536 addresses (/16 prefix))
  • 172.67.128.0/17 (32 768 addresses (/17 prefix))
  • 104.27.0.0/17 (32 768 addresses (/17 prefix))
  • 104.24.128.0/17 (32 768 addresses (/17 prefix))
  • 104.21.0.0/17 (32 768 addresses (/17 prefix))
  • 152.114.0.0/17 (32 768 addresses (/17 prefix))
  • 152.114.128.0/18 (16 384 addresses (/18 prefix))
  • 172.67.64.0/18 (16 384 addresses (/18 prefix))
  • 104.29.128.0/18 (16 384 addresses (/18 prefix))
  • 104.24.0.0/18 (16 384 addresses (/18 prefix))
  • 150.48.128.0/18 (16 384 addresses (/18 prefix))
  • 162.159.0.0/18 (16 384 addresses (/18 prefix))
  • 104.20.0.0/18 (16 384 addresses (/18 prefix))
  • 204.195.192.0/18 (16 384 addresses (/18 prefix))
  • 104.23.224.0/19 (8 192 addresses (/19 prefix))
  • 104.30.0.0/19 (8 192 addresses (/19 prefix))
  • 104.21.192.0/19 (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))
  • 104.24.64.0/19 (8 192 addresses (/19 prefix))
  • 172.66.128.0/19 (8 192 addresses (/19 prefix))
  • 104.30.160.0/19 (8 192 addresses (/19 prefix))
  • 104.23.160.0/20 (4 096 addresses (/20 prefix))
  • 172.64.112.0/20 (4 096 addresses (/20 prefix))
  • 172.71.144.0/20 (4 096 addresses (/20 prefix))
  • 104.23.208.0/20 (4 096 addresses (/20 prefix))
  • 162.158.208.0/20 (4 096 addresses (/20 prefix))
  • 172.66.192.0/20 (4 096 addresses (/20 prefix))
  • 172.66.160.0/20 (4 096 addresses (/20 prefix))
  • 172.70.240.0/20 (4 096 addresses (/20 prefix))
  • 108.162.192.0/20 (4 096 addresses (/20 prefix))
  • 104.26.0.0/20 (4 096 addresses (/20 prefix))
  • 172.64.240.0/20 (4 096 addresses (/20 prefix))
  • 172.64.208.0/20 (4 096 addresses (/20 prefix))
  • 172.64.144.0/20 (4 096 addresses (/20 prefix))
  • 172.68.16.0/20 (4 096 addresses (/20 prefix))
  • 172.64.80.0/20 (4 096 addresses (/20 prefix))
  • 104.27.192.0/20 (4 096 addresses (/20 prefix))
  • 162.159.240.0/20 (4 096 addresses (/20 prefix))
  • 141.101.112.0/20 (4 096 addresses (/20 prefix))
  • 172.70.32.0/20 (4 096 addresses (/20 prefix))
  • 104.21.224.0/20 (4 096 addresses (/20 prefix))
  • 172.70.128.0/20 (4 096 addresses (/20 prefix))
  • 190.93.240.0/20 (4 096 addresses (/20 prefix))
  • 162.159.64.0/20 (4 096 addresses (/20 prefix))
  • 198.41.192.0/20 (4 096 addresses (/20 prefix))
  • 162.158.112.0/20 (4 096 addresses (/20 prefix))

IPv6 Prefixes (2 922 total)

  • 2a0a:6c80::/29
  • 2a09:bac4::/30
  • 2a09:bac2::/31
  • 2401:9860::/32
  • 2c0f:f248::/32
  • 2a09:bac1::/32
  • 2606:54c0::/32
  • 2405:b500::/32
  • 2607:8940:2000::/35
  • 2606:4700::/36
  • 2405:8100:c000::/38
  • 2602:f660:80::/41
  • 2606:4700:3000::/42
  • 2606:4700:4000::/43
  • 2606:4700:90c0::/43
  • 2606:4700:8d90::/44
  • 2606:4700:99e0::/44
  • 2606:4700:8ca0::/44
  • 2606:4700:9c60::/44
  • 2606:4700:8dd0::/44
  • 2606:4700:8de0::/44
  • 2606:4700:83b0::/44
  • 2606:4700:91b0::/44
  • 2606:4700:9640::/44
  • 2606:4700:9760::/44
  • 2606:4700:8390::/44
  • 2606:4700:8d70::/44
  • 2606:4700:9a60::/44
  • 2606:4700:9a90::/44
  • 2a06:98c0:1c20::/44
  • 2606:4700:4400::/44
  • 2a02:d21:20::/44
  • 2606:4700:9ad0::/44
  • 2606:4700:9ae0::/44
  • 2606:4700:3110::/44
  • 2606:4700:9b00::/44
  • 2401:c2e0:8000::/44
  • 2a06:98c1:3100::/44
  • 2a06:98c0:1c70::/45
  • 2606:54c3::/45
  • 2400:cb00:190::/45
  • 2803:f800:50::/45
  • 2400:cb00:e1d0::/45
  • 2a06:98c0:1c38::/45
  • 2a06:98c0:1c40::/45
  • 2400:cb00:ddf0::/45
  • 2a06:98c0:1c50::/45
  • 2400:cb00:dde0::/45
  • 2400:cb00:ddd0::/45
  • 2a06:98c0:1c60::/45