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

AS264578

ASN

–

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS264578

NameASN264578

OrganisationB S COMÉRCIO E SERVIÇOS EM INFORMÁTICA LTDA - ME

Country

RIR–

Allocated23.01.2015

Abuse contactsergio.info@yahoo.com.br

Network Overview

IPv4 Prefixes4

IPv6 Prefixes20

Upstreams (Transit)3

Downstreams (Customers)1

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS264273A & G TELECOMUNICAÇÕES LTDA EPP AS266520Voob Telecom Ltda AS61623Vellon Servicos de Comunicacao Mult e Digitais

AS264578ASN264578

Downstreams (Customers)

AS271493SPEED NET PEDRA

Upstreams (Transit) (3)

AS264273A & G TELECOMUNICAÇÕES LTDA EPP

AS266520Voob Telecom Ltda

AS61623Vellon Servicos de Comunicacao Mult e Digitais

Downstreams (Customers) (1)

AS271493SPEED NET PEDRA

IPv4 Prefixes (4)

138.36.125.0/24

138.36.126.0/24

138.36.124.0/24

138.36.127.0/24

IPv6 Prefixes (20)

2804:21dc:4000::/40

2804:21dc:2000::/40

2804:21dc:1300::/40

2804:21dc:1400::/40

2804:21dc:200::/40

2804:21dc:1100::/40

2804:21dc::/40

2804:21dc:100::/40

2804:21dc:1800::/40

2804:21dc:6000::/40

2804:21dc:300::/40

2804:21dc:1000::/48

2804:21dc:1500::/40

2804:21dc:400::/40

2804:21dc:5000::/40

2804:21dc:1600::/40

2804:21dc:1200::/40

2804:21dc:5100::/40

2804:21dc:3000::/40

2804:21dc:3100::/40

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.