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Autonomous System

AS13786 · Seabras 1 USA, LLC

Overview

AS13786 is announced on the Internet: RIPE RIS route collectors currently see 8 IPv4 prefixes and 9 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 3,072 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 39 upstream neighbours (transit providers or peers) and 454 downstream neighbours (customers or networks it carries). Its most visible upstreams are Cogent Communications, LLC (AS174), Level 3 Parent, LLC (AS3356), and Durand do Brasil Ltda (AS22356). AS13786 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:53 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 207.135.208.1, the first address of 207.135.208.0/21. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (8 prefixes)

PrefixAddresses
45.177.100.0/221,024
45.177.100.0/24256
207.135.208.0/212,048
207.135.208.0/24256
207.135.210.0/24256
207.135.211.0/24256
207.135.212.0/24256
207.135.213.0/24256

IPv6 prefixes (9 prefixes)

Prefix
2605:4a40::/32
2605:4a40:100::/40
2605:4a40:300::/40
2605:4a40:400::/40
2605:4a40:500::/40
2605:4a40:900::/40
2605:4a40:d00::/40
2605:4a40:ff00::/47
2804:5d90::/32

Neighbours

Upstreams (transit or peers) (39)

ASNetworkVisibility
AS174Cogent Communications, LLC98,913
AS3356Level 3 Parent, LLC70,399
AS22356Durand do Brasil Ltda56,245
AS6762TELECOM ITALIA SPARKLE S.p.A.50,429
AS6453TATA COMMUNICATIONS (AMERICA) INC44,507
AS6939Hurricane Electric LLC42,293
AS9002RETN Limited24,619
AS3257GTT Communications Inc.20,456
AS53013UFINET BRASIL S.A.12,993
AS13030Init7 (Switzerland) Ltd.11,224
AS60068Datacamp Limited4,173
AS273478Sage Networks3,950
AS3303Swisscom (Schweiz) AG2,732
AS41327-2,530
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.2,522
AS64126DOMINICAN TELECOM PRIME, DTP, S.R.L.2,173
AS58453China Mobile International Limited1,994
AS37468Angola Cables1,972
AS16735ALGAR TELECOM S/A1,945
AS264409Huge Solucoes Corporativas Ltda1,869
AS8220COLT Technology Services Group Limited1,840
AS33891Core-Backbone GmbH1,606
AS1031PEER 1031 LLC835
AS8359MTS PJSC652
AS286GTT Communications Inc.602
AS53181Avanca Telecom e Servicos LTDA561
AS60171AFR-IX TELECOM S.A.343
AS137409GSL Networks Pty LTD174
AS14840BR.Digital Telecom111
AS28258-101

The 30 most visible of 39.

Downstreams (customers) (454)

ASNetworkVisibility
AS53181Avanca Telecom e Servicos LTDA42,574
AS267613ELETRONET S.A.26,129
AS61832DB3 SERVICOS DE TELECOMUNICACOES S.A20,690
AS268696Tuddo Telecom Ltda.9,217
AS262847DBUG TELECOM LTDA9,012
AS53087TELY Ltda.8,768
AS264409Huge Solucoes Corporativas Ltda8,692
AS28258VERO S.A8,217
AS28146MHNET TELECOM7,180
AS52840UFINET BRASIL S.A.6,422
AS269096N&K TECNOLOGIA LTDA6,363
AS61599-5,037
AS264997-4,947
AS263432-4,844
AS264170-4,672
AS263482-4,610
AS28126BRISANET SERVICOS DE TELECOMUNICACOES S.A4,351
AS268925-4,057
AS271023-3,925
AS53062GGNET TELECOMUNICACOES LTDA3,773
AS52468UFINET PANAMA S.A.3,693
AS23106AMERICAN TOWER DO BRASIL-COMUNICACAO MULTIMIDIA LT3,565
AS269416SEMEAR TELECOM EIRELI3,326
AS3257GTT Communications Inc.3,099
AS273490-3,003
AS266409SECW TELECOM2,906
AS22356Durand do Brasil Ltda2,807
AS263625-2,776
AS270417-2,776
AS263047-2,756

The 30 most visible of 454.

591 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.