AS395747 Cloudflare, Inc.

CLOUDFLARENET-SFO05 - Cloudflare, Inc. · registered in the United States

IPv4 addresses4,86418 prefixes · <0.001% of announced IPv4

Rank in United States#4,180largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#13,945of 79,396 networks with IPv4

IPv621 x /4819 prefixes

CountryUnited States18,679 ASNs registered there

Open AS395747 in ASN lookup Look up an IP in this network (8.14.199.1) All networks in United States

IPv4 prefixes

All 18 prefixes, in address order.

8.14.199.0/24
8.17.207.0/24
8.21.12.0/24
8.39.207.0/24
8.48.131.0/24
108.162.209.0/24
162.158.57.0/24
162.158.58.0/24
162.158.64.0/24
162.159.204.0/24
172.64.202.0/24
172.68.136.0/24
172.69.61.0/24
172.70.95.0/24
172.71.18.0/23
172.71.91.0/24
172.71.136.0/24
198.41.128.0/24

IPv6 prefixes

All 19 prefixes.

2400:cb00:133::/48
2400:cb00:251::/48
2400:cb00:517::/48
2400:cb00:518::/48
2400:cb00:531::/48
2400:cb00:539::/48
2400:cb00:693::/48
2400:cb00:748::/48
2400:cb00:922::/48
2400:cb00:1010::/47
2400:cb00:1057::/48
2606:4700:f3::/48
2606:54c1:2::/47
2606:54c1:9::/48
2606:54c1:d::/48
2a06:98c0:1c00::/48
2a06:98c0:1c0b::/48
2a06:98c0:1c4a::/48
2a06:98c0:1c59::/48

Other ASNs named Cloudflare, Inc.

5 other networks use the same organisation name; together with AS395747 they announce 1,519,360 IPv4 addresses.

ASNNameIPv4 addresses

AS13335CLOUDFLARENET - Cloudflare, Inc. US1,417,216

AS14789CLOUDFLARENET - Cloudflare, Inc. US68,352

AS132892CLOUDFLARE - Cloudflare, Inc. US28,672

AS400095CLOUDFLARENET - Cloudflare, Inc. US256

AS394536CLOUDFLARENET-SFO - Cloudflare, Inc. USIPv6 only

Similar-sized networks in United States

ASNNameIPv4 addresses

AS46974#4177 SERVAXNET - ServaxNet, LLC4,864

AS11228#4178 ARINC - ARINC INCORPORATED4,864

AS14616#4179 IVANET-AMSTERDAM - IBASIS INC.4,864

AS53428#4181 KCS-US-NEBIUS - Nebius Inc.4,864

AS10975#4182 NET-AIG - American International Group Data Center, Inc.4,864

AS14333#4183 ORI-NET - On-Ramp Indiana, Inc. (ORI.NET)4,864

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources