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

AS52821

ASN

–

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS52821

NameASN52821

OrganisationTorres e Anselmi Ltda

Country

RIR–

Allocated10.10.2012

Abuse contacttorresanselmi@hotmail.com

Network Overview

IPv4 Prefixes6

IPv6 Prefixes3

Upstreams (Transit)5

Downstreams (Customers)0

BGP Peers17

AS Path (BGP neighbours)

Upstreams (Transit)

AS267621IFIBER TELECOM AS267973G.V.R. TELECOMUNICAÇÕES E SERVIÇOS LTDA - ME AS274685Sernet AS6057Administracion Nacional de Telecomunicaciones AS6939Hurricane Electric LLC

AS52821ASN52821

Downstreams (Customers)

none

Upstreams (Transit) (5)

AS267621IFIBER TELECOM

AS267973G.V.R. TELECOMUNICAÇÕES E SERVIÇOS LTDA - ME

AS274685Sernet

AS6057Administracion Nacional de Telecomunicaciones

AS6939Hurricane Electric LLC

IPv4 Prefixes (6)

177.72.158.0/23

177.72.156.0/23

177.72.156.0/22

138.121.144.0/23

138.121.146.0/23

138.121.144.0/22

IPv6 Prefixes (3)

2804:25a4::/33

2804:25a4:8000::/33

2804:25a4::/32

BGP Peers (17)

AS14840BR.DIGITAL

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.

AS35280F5 Networks SARL

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.