subnet.im

AS13786Seaborn (Seabras USA, LLC)

United StatesRegistryARINTypeCarrier

As of 11th November 2026, AS13786 (Seaborn (Seabras USA, LLC)), a transit carrier registered in the United States with ARIN, originates 8 IPv4 prefixes covering 4.6k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 16,470th-largest of the 80,747 networks we see originating IPv4, and the 4,625th-largest of 18,752 in the United States. It is seen behind 28 upstream networks, most often AS14537 (Continent 8 LLC) and AS22356 (Durand do Brasil Ltda), and in front of 464 downstream networks. Every one of its announcements has 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

8

IPv6 prefixes

9

IPv4 addresses

4.6k

IPv6 /64s

8.7B

Upstream graph

The networks AS13786 is seen behind, one and two hops out, drawn from real AS paths.

AS13786Toward the internet core
Upstream graph for AS13786: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS13786Seaborn (Seabras …This networkAS174Cogent Communicat…AS6453TATA Communicatio…AS13030Init7 (Switzerlan…AS14537Continent 8 LLCAS22356Durand do Brasil …AS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS8220COLTAS35280F5 Networks SARLAS2914NTT America, Inc.AS3356Lumen (Level 3)AS3491PCCW Global (HK) …

Networks observed one and two hops upstream of AS13786 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

1,133

adjacent networks

Upstreams
282%
Peers
64157%
Downstreams
46441%

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

Upstreams of AS13786
NetworkCountryRelationshipPathsVantage pts
AS14537Continent 8 LLCUSPeer648,9393
AS22356Durand do Brasil LtdaBRPeer92,54268
AS6453TATA Communications (America) IncUSPeer69,380122
AS174Cogent Communications, LLCUSPeer39,41495
AS13030Init7 (Switzerland) Ltd.CHPeer24,7985
AS3356Lumen (Level 3)USPeer22,740103
AS30371GTT Americas, LLCUSPeer16,94737
AS9002RETN LimitedGBPeer13,8049
AS6762Telecom Italia Sparkle (Seabone)ITPeer10,93781
AS24482SG.GSSGPeer7,3044

Prefixes

The largest blocks AS13786 originates, widest first.

Largest prefixes originated by AS13786
PrefixAddressesVisibility
207.135.208.0/212k76/76
45.177.100.0/221k76/76
45.177.100.0/2425676/76
207.135.208.0/2425676/76
207.135.210.0/2425676/76
207.135.211.0/2425676/76
207.135.212.0/2425676/76
207.135.213.0/2425676/76
2605:4a40::/324.3B × /6463/63
2804:5d90::/324.3B × /6463/63

Routing health

How AS13786'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%17
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%17
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 8 prefixes

IPv6 — 9 prefixes

  • /324.3B × /6422.2%2
  • /4016.8M × /6466.7%6
  • /47131k × /6411.1%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS13786 started or stopped in this period.

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