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AS209242Cloudflare BYOIP Customers

United StatesRegistryRIPE NCCTypeContent

As of 26th September 2026, AS209242 (Cloudflare BYOIP Customers), a content network registered in the United States with RIPE NCC, originates 273 IPv4 prefixes covering 103k addresses and 28 IPv6 prefixes. By IPv4 address space that makes it the 2,333rd-largest of the 79,480 networks we see originating IPv4, and the 747th-largest of 18,421 in the United States. It is seen behind 1 upstream network, most often AS13335 (Cloudflare, Inc.). 55% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

273

IPv6 prefixes

28

IPv4 addresses

103k

IPv6 /64s

17.2B

Upstream graph

The networks AS209242 is seen behind, one and two hops out, drawn from real AS paths.

AS209242Toward the internet core
Upstream graph for AS209242: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS209242Cloudflare BYOIP …This networkAS13335Cloudflare, Inc.AS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS209242 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS209242
NetworkCountryRelationshipPathsVantage pts
AS13335Cloudflare, Inc.USPeer23,871145

Prefixes

All 301

The largest blocks AS209242 originates, widest first.

Largest prefixes originated by AS209242
PrefixAddressesVisibility
68.169.48.0/204.1k81/81
69.89.0.0/204.1k81/81
216.154.208.0/204.1k81/81
66.94.40.0/212k81/81
154.84.16.0/212k81/81
194.39.112.0/212k81/81
5.10.244.0/221k81/81
45.131.4.0/221k81/81
45.131.208.0/221k81/81
66.94.32.0/221k81/81

Routing health

How AS209242'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

  • Valid55.1%166
  • Invalid0.0%0
  • No ROA44.9%135

Propagation

  • Globally propagated90% of full-feed peers or more99.3%299
  • Partially propagated40% to 90%0.7%2
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 273 prefixes

IPv6 — 28 prefixes

  • /324.3B × /6414.3%4
  • /441M × /643.6%1
  • /47131k × /647.1%2
  • /4865.5k × /6475.0%21

Recent changes

Announcements that started or stopped since 27th Aug 2026.

  • Announced23.179.248.0/2425th Sept 2026
  • Withdrawn130.108.253.0/2424th Sept 2026
  • Withdrawn23.179.248.0/2424th Sept 2026
  • Withdrawn102.177.176.0/2421st Sept 2026
  • Withdrawn103.135.208.0/2221st Sept 2026
  • Withdrawn103.79.228.0/2321st Sept 2026
  • Withdrawn154.197.108.0/2421st Sept 2026
  • Withdrawn154.197.121.0/2421st Sept 2026
  • Withdrawn154.197.80.0/2421st Sept 2026
  • Withdrawn154.197.88.0/2421st Sept 2026
  • Withdrawn154.219.5.0/2421st Sept 2026
  • Withdrawn156.225.72.0/2421st Sept 2026

1 announced and 27 withdrawn in all; the most recent are shown.

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