subnet.im

AS13581SHI International Corp.

United StatesRegistryARIN

As of 29th September 2026, AS13581 (SHI International Corp.), a network registered in the United States with ARIN, originates 6 IPv4 prefixes covering 1.5k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 31,141st-largest of the 79,607 networks we see originating IPv4, and the 7,124th-largest of 18,442 in the United States. It is seen behind 6 upstream networks, most often AS701 (Verizon Business) and AS3356 (Lumen (Level 3)). 29% 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

6

IPv6 prefixes

1

IPv4 addresses

1.5k

IPv6 /64s

65.5k

Upstream graph

The networks AS13581 is seen behind, one and two hops out, drawn from real AS paths.

AS13581Toward the internet core
Upstream graph for AS13581: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS13581SHI International…This networkAS701Verizon BusinessAS3356Lumen (Level 3)AS7018AT&T Enterprises,…AS11427Charter Communica…AS54004Cablevision Light…AS1299Arelion (fka. Tel…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS7843Spectrum (Charter)AS20115Spectrum (Charter)AS6128Cablevision Syste…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS13581 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

12

adjacent networks

Upstreams
650%
Peers
650%
Downstreams
00%

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

Upstreams of AS13581
NetworkCountryRelationshipPathsVantage pts
AS701Verizon BusinessUSPeer28782
AS3356Lumen (Level 3)USPeer145145
AS11427Charter Communications IncUSPeer7777
AS54004Cablevision Lightpath LLCUSPeer3221
AS7018AT&T Enterprises, LLCUSPeer63
AS3549Lumen (fka. Global Crossing)USPeer55

Prefixes

The largest blocks AS13581 originates, widest first.

Largest prefixes originated by AS13581
PrefixAddressesVisibility
199.241.104.0/2425681/82
199.241.105.0/2425681/82
207.140.149.0/2425681/82
207.140.191.0/2425681/82
209.64.142.0/2425682/82
209.64.202.0/2425682/82
2600:802:430::/4865.5k × /6464/65

Routing health

How AS13581'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

  • Valid28.6%2
  • Invalid0.0%0
  • No ROA71.4%5

Propagation

  • Globally propagated90% of full-feed peers or more100.0%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 6 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 30th Aug 2026.

No announcement by AS13581 started or stopped in this period.

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