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

AS263879

ASN

–

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS263879

NameASN263879

OrganisationNET FIBRA EMPRESAS LTDA

Country

RIR–

Allocated29.07.2015

Abuse contactnetfibraempresas@gmail.com

Network Overview

IPv4 Prefixes5

IPv6 Prefixes14

Upstreams (Transit)3

Downstreams (Customers)2

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS263411ONIX TELECOM AS265130FIBRA EMPRESAS LTDA AS53181K2 Telecom e Multimidia LTDA ME

AS263879ASN263879

Downstreams (Customers)

AS266564C. J. ALVES NETWORK SERVIÇOS DE INFORMÁTICA E INTE AS270925Fibramar Telecomunicações Ltda

Upstreams (Transit) (3)

AS263411ONIX TELECOM

AS265130FIBRA EMPRESAS LTDA

AS53181K2 Telecom e Multimidia LTDA ME

Downstreams (Customers) (2)

AS266564C. J. ALVES NETWORK SERVIÇOS DE INFORMÁTICA E INTE

AS270925Fibramar Telecomunicações Ltda

IPv4 Prefixes (5)

138.204.79.0/24

138.204.76.0/23

138.204.78.0/24

138.204.77.0/24

138.204.76.0/24

IPv6 Prefixes (14)

2804:2724:1c0::/48

2804:2724:120::/44

2804:2724:80::/41

2804:2724:180::/44

2804:2724:1f0::/44

2804:2724:300::/40

2804:2724::/41

2804:2724:200::/40

2804:2724:170::/44

2804:2724::/40

2804:2724:170::/45

2804:2724:120::/45

2804:2724:178::/45

2804:2724:128::/45

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.