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

AS28623

ASN

–

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS28623

NameASN28623

OrganisationPONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL

Country

RIR–

Allocated14.12.2005

Abuse contactsecurity@pucrs.br

Network Overview

IPv4 Prefixes5

IPv6 Prefixes0

Upstreams (Transit)5

Downstreams (Customers)0

BGP Peers2

AS Path (BGP neighbours)

Upstreams (Transit)

AS1031PEER 1031 LLC AS2716Universidade Federal do Rio Grande do Sul AS3356Lumen (Level 3)AS6057Administracion Nacional de Telecomunicaciones AS7195EdgeUno

AS28623ASN28623

Downstreams (Customers)

none

Upstreams (Transit) (5)

AS1031PEER 1031 LLC

AS2716Universidade Federal do Rio Grande do Sul

AS3356Lumen (Level 3)

AS6057Administracion Nacional de Telecomunicaciones

AS7195EdgeUno

IPv4 Prefixes (5)

201.54.155.0/24

201.54.128.0/19

201.54.150.0/24

201.54.128.0/20

201.54.144.0/20

BGP Peers (2)

AS14840BR.DIGITAL

AS263152MIGO TELECOM

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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.