subnet.im

AS399145Sumo Capital LLC

United StatesRegistryARIN

As of 10th November 2026, AS399145 (Sumo Capital LLC), a network registered in the United States with ARIN, originates 5 IPv4 prefixes covering 1.3k addresses. By IPv4 address space that makes it the 34,015th-largest of the 80,723 networks we see originating IPv4, and the 7,674th-largest of 18,750 in the United States. It is seen behind 2 upstream networks, most often AS2914 (NTT America, Inc.) and AS174 (Cogent Communications, LLC). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 20% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

5

IPv6 prefixes

0

IPv4 addresses

1.3k

IPv6 /64s

0

Upstream graph

The networks AS399145 is seen behind, one and two hops out, drawn from real AS paths.

AS399145Toward the internet core
Upstream graph for AS399145: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399145Sumo Capital LLCThis networkAS174Cogent Communicat…AS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS49544i3D.net B.VAS215859Hetzner Cloud - S…

Networks observed one and two hops upstream of AS399145 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 AS399145
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer8676
AS174Cogent Communications, LLCUSPeer21

Prefixes

The largest blocks AS399145 originates, widest first.

Largest prefixes originated by AS399145
PrefixAddressesVisibility
198.13.18.0/235121/76
140.174.19.0/2425676/76
198.13.18.0/242561/76
140.174.19.0/251285/76
140.174.19.128/251285/76

Routing health

How AS399145'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%5
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more20.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%80.0%4

Prefix sizes

IPv4 — 5 prefixes

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.