An Autonomous System Number (ASN) is a unique number assigned to a network in global internet routing. Every provider that participates directly on the internet has its own ASN (e.g. AS15169 for Google).

What are upstreams, peers and prefixes?

Upstreams are transit providers through which an AS reaches the internet. Peers are networks with direct traffic exchange. Prefixes are the IP address ranges the AS announces via BGP.

Where does the ASN data come from?

The data comes from the official RDAP services of the RIRs (RIPE, ARIN, etc.) and from RIPEstat (prefixes and neighbour ASNs).

ASN Lookup – Networks, Upstreams and Prefixes

AS263443

ASN

–

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS263443

NameASN263443

OrganisationL R DA FONSECA ME

Country

RIR–

Allocated05.12.2013

Abuse contactnoc@youisp.com.br

Network Overview

IPv4 Prefixes3

IPv6 Prefixes2

Upstreams (Transit)11

Downstreams (Customers)3

BGP Peers18

AS Path (BGP neighbours)

Upstreams (Transit)

AS137409GSL Networks Pty LTD AS265080AD TELECOM AS28220Alares Internet AS35280F5 Networks SARL AS39120Convergenze S.p.A.AS52468UFINET PANAMA S.A.+5

AS263443ASN263443

Downstreams (Customers)

AS269162RCS NET PROVEDOR DE INTERNET AS271433MAIA E DUTRA LTDA AS271491VYK TECH EIRELI

Upstreams (Transit) (11)

AS137409GSL Networks Pty LTD

AS265080AD TELECOM

AS28220Alares Internet

AS35280F5 Networks SARL

AS39120Convergenze S.p.A.

AS52468UFINET PANAMA S.A.

AS53013Ufinet Brasil (WixNet do Brasil)

AS6057Administracion Nacional de Telecomunicaciones

AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA

AS6939Hurricane Electric LLC

AS7713PT Telkom Indonesia Tbk

Downstreams (Customers) (3)

AS269162RCS NET PROVEDOR DE INTERNET

AS271433MAIA E DUTRA LTDA

AS271491VYK TECH EIRELI

IPv4 Prefixes (3)

177.91.132.0/22

177.91.134.0/23

177.91.132.0/23

IPv6 Prefixes (2)

2804:11d8::/32

2804:11d8:8000::/48

BGP Peers (18)

AS198150SIACOM JSC

AS199524Gcore S.A.

AS22548Núcleo de Informação e Coordenação do Ponto BR - NIC.BR

AS24482SG.GS

AS262427Invista Net Provedor de Acesso Ltda

AS263152MIGO TELECOM

AS263237PowerHost Telecom SPA

AS264479Turbozone Internet

AS271253LINK BRASIL TELECOMUNICACOES LTDA

AS28624Oops Internet

AS28634Life Tecnologia Ltda.

AS36236NetActuate, Inc

My IP ASN Lookup IP Lookup WHOIS DNS Lookup

What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.