subnet.im

AS395403IBM

United StatesRegistryARINTypeContent

As of 13th November 2026, AS395403 (IBM), a content network registered in the United States with ARIN, originates 11 IPv4 prefixes covering 2.8k addresses and 17 IPv6 prefixes. By IPv4 address space that makes it the 22,816th-largest of the 80,813 networks we see originating IPv4, and the 5,768th-largest of 18,770 in the United States. It is seen behind 3 upstream networks, most often AS36236 (NetActuate, Inc) and AS1299 (Arelion (fka. Telia Carrier)). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

11

IPv6 prefixes

17

IPv4 addresses

2.8k

IPv6 /64s

1.1M

Upstream graph

The networks AS395403 is seen behind, one and two hops out, drawn from real AS paths.

AS395403Toward the internet core
Upstream graph for AS395403: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS395403IBMThis networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS36236NetActuate, IncAS13030Init7 (Switzerlan…AS16552Tiggee LLCAS49544i3D.net B.VAS215859Hetzner Cloud - S…AS174Cogent Communicat…

Networks observed one and two hops upstream of AS395403 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
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS395403
NetworkCountryRelationshipPathsVantage pts
AS36236NetActuate, IncUSPeer1,710142
AS1299Arelion (fka. Telia Carrier)SEPeer8181
AS2914NTT America, Inc.USPeer6161

Prefixes

All 28

The largest blocks AS395403 originates, widest first.

Largest prefixes originated by AS395403
PrefixAddressesVisibility
163.114.198.0/2425678/78
163.114.224.0/2425678/78
163.114.225.0/2425678/78
163.114.226.0/2425678/78
163.114.227.0/2425678/78
163.114.228.0/2425678/78
163.114.229.0/2425678/78
163.114.230.0/2425678/78
163.114.231.0/2425678/78
163.114.232.0/2425678/78

Routing health

How AS395403'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

  • Valid100.0%28
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more96.4%27
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.6%1

Prefix sizes

IPv4 — 11 prefixes

IPv6 — 17 prefixes

  • /4865.5k × /64100.0%17

Recent changes

Announcements that started or stopped since 14th Oct 2026.

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