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

AS52711

ASN

–

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS52711

NameASN52711

OrganisationFASTNET TELECOM

Country

RIR–

Allocated03.01.2013

Abuse contactdanielfranco.dfx@gmail.com

Network Overview

IPv4 Prefixes6

IPv6 Prefixes1

Upstreams (Transit)3

Downstreams (Customers)4

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS14840BR.DIGITAL AS52873Softdados Telecomunicações AS61568ALOO TELECOM - FSF TECNOLOGIA SA

AS52711ASN52711

Downstreams (Customers)

AS262689UNOUN INTERNET LTDA AS265351INFOARTES TELECOM LTDA AS271326P3 SERVIÇOS DE TELECOMUNICAÇÃO LTDA AS272282K L X - TECNOLOGIA LTDA

Upstreams (Transit) (3)

AS14840BR.DIGITAL

AS52873Softdados Telecomunicações

AS61568ALOO TELECOM - FSF TECNOLOGIA SA

Downstreams (Customers) (4)

AS262689UNOUN INTERNET LTDA

AS265351INFOARTES TELECOM LTDA

AS271326P3 SERVIÇOS DE TELECOMUNICAÇÃO LTDA

AS272282K L X - TECNOLOGIA LTDA

IPv4 Prefixes (6)

179.96.184.0/24

179.96.184.0/21

179.96.185.0/24

179.96.190.0/24

179.96.186.0/24

177.84.88.0/22

IPv6 Prefixes (1)

2804:1560::/32

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.