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AS209394Kyndryl, Inc.

United StatesRegistryRIPE NCC

As of 26th September 2026, AS209394 (Kyndryl, Inc.), a network registered in the United States with RIPE NCC, originates 16 IPv4 prefixes covering 9.2k addresses. By IPv4 address space that makes it the 10,994th-largest of the 79,480 networks we see originating IPv4, and the 3,307th-largest of 18,421 in the United States. It is seen behind 2 upstream networks, most often AS8220 (COLT) and AS3356 (Lumen (Level 3)), and in front of 1 downstream network. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

16

IPv6 prefixes

0

IPv4 addresses

9.2k

IPv6 /64s

0

Upstream graph

The networks AS209394 is seen behind, one and two hops out, drawn from real AS paths.

AS209394Toward the internet core
Upstream graph for AS209394: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS209394Kyndryl, Inc.This networkAS3356Lumen (Level 3)AS8220COLTAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS15576NTS workspace AG

Networks observed one and two hops upstream of AS209394 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

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

Upstreams of AS209394
NetworkCountryRelationshipPathsVantage pts
AS8220COLTGBPeer1,18081
AS3356Lumen (Level 3)USPeer35981

Prefixes

The largest blocks AS209394 originates, widest first.

Largest prefixes originated by AS209394
PrefixAddressesVisibility
129.35.88.0/212k81/81
129.35.88.0/221k81/81
129.35.92.0/221k81/81
129.35.184.0/221k81/81
129.35.70.0/2351281/81
129.35.150.0/2351281/81
129.35.184.0/2351281/81
129.35.186.0/2351281/81
129.35.70.0/2425681/81
129.35.71.0/2425681/81

Routing health

How AS209394'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%16

Propagation

  • Globally propagated90% of full-feed peers or more100.0%16
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 16 prefixes

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS209394 started or stopped in this period.

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