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

AS13335 — CLOUDFLARENET (CLOUDFLARENET ☁️)

Cloudflare Inc.

AS13335 is a major transit provider operated by Cloudflare Inc., established in the United States in 2010. The network announces an impressive 1.4 million IPv4 addresses, including a /14. Supports IPv6.

  • 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
July 14, 2010
Last Changed
March 04, 2026
Last Seen
March 05, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
2 459 / 831
IPv6 Prefixes (raw / aggregated)
3 047 / 1 686
IPv4 Addresses
1 373 696
Largest IPv4 Prefix
/14 (262 144 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇺🇸 US (749 IPs), 🇬🇧 GB (10 IPs), 🇿🇿 ZZ (2 IPs), 🇸🇬 SG, 🇦🇺 AU, 🇩🇪 DE, 🇭🇰 HK, 🇳🇱 NL, 🇰🇷 KR, 🇨🇦 CA, 🇨🇳 CN, 🇦🇲 AM, 🇨🇼 CW, 🇿🇦 ZA and 35 more
Prefix Changed
March 05, 2026

Reputation

Reputation
Good — 222 flagged IPs out of 1 373 696 total (0.02%)
Open Proxies
44 known open proxies in this network

Connectivity Summary

Upstream Providers
160 upstream autonomous systems providing transit
Peers
807 autonomous systems exchanging traffic without transit fees
Downstream Customers
936 downstream autonomous systems buying transit
Degree
1 942 unique BGP neighbors (providers + customers + peers)
Reach
34 925 — customer cone size measuring network influence
Degree Rank
#60
Reach Rank
#364

Upstream Providers (160)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS37468 — ANGOLA-CABLES
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS7018 — ATT-INTERNET4 (Tier-1 transit)
  • AS3216 — SOVAM-AS
  • AS37100 — SEACOM-AS
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS30844 — LIQUID-AS
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • and 150 more

Prefix Lists

IPv4 Prefixes (2 459 total)

  • 104.16.0.0/14 (262 144 addresses)
  • 104.25.0.0/16 (65 536 addresses)
  • 104.28.0.0/16 (65 536 addresses)
  • 172.65.0.0/16 (65 536 addresses)
  • 104.21.0.0/17 (32 768 addresses)
  • 104.24.128.0/17 (32 768 addresses)
  • 104.27.0.0/17 (32 768 addresses)
  • 152.114.0.0/17 (32 768 addresses)
  • 172.67.128.0/17 (32 768 addresses)
  • 104.20.0.0/18 (16 384 addresses)
  • 104.24.0.0/18 (16 384 addresses)
  • 104.29.128.0/18 (16 384 addresses)
  • 150.48.128.0/18 (16 384 addresses)
  • 152.114.128.0/18 (16 384 addresses)
  • 162.159.0.0/18 (16 384 addresses)
  • 172.67.64.0/18 (16 384 addresses)
  • 204.195.192.0/18 (16 384 addresses)
  • 104.21.192.0/19 (8 192 addresses)
  • 104.24.64.0/19 (8 192 addresses)
  • 104.30.0.0/19 (8 192 addresses)
  • 104.30.160.0/19 (8 192 addresses)
  • 162.158.160.0/19 (8 192 addresses)
  • 162.159.128.0/19 (8 192 addresses)
  • 172.64.32.0/19 (8 192 addresses)
  • 172.66.128.0/19 (8 192 addresses)
  • 104.21.224.0/20 (4 096 addresses)
  • 104.23.160.0/20 (4 096 addresses)
  • 104.23.208.0/20 (4 096 addresses)
  • 104.23.224.0/20 (4 096 addresses)
  • 104.26.0.0/20 (4 096 addresses)
  • 104.27.192.0/20 (4 096 addresses)
  • 104.29.64.0/20 (4 096 addresses)
  • 108.162.192.0/20 (4 096 addresses)
  • 141.101.112.0/20 (4 096 addresses)
  • 162.158.112.0/20 (4 096 addresses)
  • 162.158.224.0/20 (4 096 addresses)
  • 162.159.64.0/20 (4 096 addresses)
  • 162.159.240.0/20 (4 096 addresses)
  • 172.64.80.0/20 (4 096 addresses)
  • 172.64.144.0/20 (4 096 addresses)
  • 172.64.208.0/20 (4 096 addresses)
  • 172.64.240.0/20 (4 096 addresses)
  • 172.66.160.0/20 (4 096 addresses)
  • 172.66.192.0/20 (4 096 addresses)
  • 172.68.16.0/20 (4 096 addresses)
  • 172.69.128.0/20 (4 096 addresses)
  • 172.70.32.0/20 (4 096 addresses)
  • 172.70.128.0/20 (4 096 addresses)
  • 172.70.176.0/20 (4 096 addresses)
  • 172.70.208.0/20 (4 096 addresses)

IPv6 Prefixes (3 047 total)

  • 2a0a:6c80::/29
  • 2a09:bac4::/30
  • 2a09:bac2::/31
  • 2405:b500::/32
  • 2606:54c0::/32
  • 2a09:bac1::/32
  • 2c0f:f248::/32
  • 2607:8940:2000::/35
  • 2606:4700::/36
  • 2405:8100:c000::/38
  • 2602:f660::/40
  • 2606:4700:3000::/42
  • 2606:4700:4000::/43
  • 2606:4700:90c0::/43
  • 2401:c2e0:8000::/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
  • 2a06:98c0:1c60::/44
  • 2a06:98c0:1c80::/44
  • 2a06:98c1:3100::/44
  • 2400:cb00:50::/45
  • 2400:cb00:190::/45
  • 2400:cb00:670::/45
  • 2400:cb00:960::/45
  • 2400:cb00:980::/45
  • 2400:cb00:1000::/45
  • 2405:8100:50::/45
  • 2606:4700:4020::/45
  • 2606:4700:4030::/45
  • 2606:4700:42c8::/45
  • 2606:4700:43d8::/45