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AS202623Cloudflare Inc

United StatesRegistryRIPE NCC

As of 10th November 2026, AS202623 (Cloudflare Inc), a network registered in the United States with RIPE NCC, originates 12 IPv4 prefixes covering 30.7k addresses and 23 IPv6 prefixes. By IPv4 address space that makes it the 5,709th-largest of the 80,723 networks we see originating IPv4, and the 1,957th-largest of 18,750 in the United States. It is seen behind 4 upstream networks, most often AS13335 (Cloudflare, Inc.) and AS3257 (GTT Communications Inc.). 97% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 89% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.

At a glance

IPv4 prefixes

12

IPv6 prefixes

23

IPv4 addresses

30.7k

IPv6 /64s

1.5M

Upstream graph

The networks AS202623 is seen behind, one and two hops out, drawn from real AS paths.

AS202623Toward the internet core
Upstream graph for AS202623: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS202623Cloudflare IncThis networkAS1299Arelion (fka. Tel…AS3257GTT Communication…AS3356Lumen (Level 3)AS13335Cloudflare, Inc.AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS6667Elisa OyjAS398465Rackdog LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS202623 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

9

adjacent networks

Upstreams
444%
Peers
556%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS202623
NetworkCountryRelationshipPathsVantage pts
AS13335Cloudflare, Inc.USPeer1,770133
AS3257GTT Communications Inc.USPeer17832
AS3356Lumen (Level 3)USPeer12928
AS1299Arelion (fka. Telia Carrier)SEPeer11159

Prefixes

All 35

The largest blocks AS202623 originates, widest first.

Largest prefixes originated by AS202623
PrefixAddressesVisibility
104.23.32.0/198.2k76/76
104.23.64.0/198.2k76/76
172.71.32.0/198.2k76/76
172.71.64.0/204.1k76/76
141.101.64.0/2425676/76
141.101.91.0/2425676/76
162.159.83.0/2425676/76
198.41.143.0/2425676/76
198.41.150.0/2425676/76
198.41.245.0/2425633/76

Routing health

How AS202623's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid97.1%34
  • Invalid0.0%0
  • No ROA2.9%1

Propagation

  • Globally propagated90% of full-feed peers or more88.6%31
  • Partially propagated40% to 90%2.9%1
  • Seen by few peersUnder 40%8.6%3

Prefix sizes

IPv4 — 12 prefixes

IPv6 — 23 prefixes

  • /4865.5k × /64100.0%23

Recent changes

Announcements that started or stopped since 11th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.