subnet.im

AS229Merit Network Inc.

United StatesRegistryARIN

As of 23rd October 2026, AS229 (Merit Network Inc.), a network registered in the United States with ARIN, originates 2 IPv4 prefixes covering 1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 35,839th-largest of the 79,652 networks we see originating IPv4, and the 8,128th-largest of 18,475 in the United States. It is seen behind 2 upstream networks, most often AS237 (Merit Network Inc.) and AS231 (Michigan State University). 33% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

1

IPv4 addresses

1k

IPv6 /64s

65.5k

Upstream graph

The networks AS229 is seen behind, one and two hops out, drawn from real AS paths.

AS229Toward the internet core
Upstream graph for AS229: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS229Merit Network Inc.This networkAS231Michigan State Un…AS237Merit Network Inc.AS11164Internet2 I2PXAS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS229 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS229
NetworkCountryRelationshipPathsVantage pts
AS237Merit Network Inc.USPeer140140
AS231Michigan State UniversityUSPeer7777

Prefixes

The largest blocks AS229 originates, widest first.

Largest prefixes originated by AS229
PrefixAddressesVisibility
192.41.230.0/2351277/77
192.41.236.0/2351277/77
2001:48a8:68f7::/4865.5k × /6463/64

Routing health

How AS229'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

  • Valid33.3%1
  • Invalid0.0%0
  • No ROA66.7%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS229 started or stopped in this period.

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