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

AS42425

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS42425

NameASN-AVANZATI

Organisationavanzati-mnt

Country –

RIRRIPE NCC

Allocated15.09.2008

Abuse contactabuse@avanzati.it

Network Overview

IPv4 Prefixes24

IPv6 Prefixes0

Upstreams (Transit)7

Downstreams (Customers)3

BGP Peers6

AS Path (BGP neighbours)

Upstreams (Transit)

AS12779IT.Gate S.p.A.AS174Cogent Communications, LLC AS20766Association "Gitoyen"AS3303Swisscom (Schweiz) AG AS34019Hivane Association AS47242Host SpA+1

AS42425ASN-AVANZATI

Downstreams (Customers)

AS34650ALFA DI ADB LUPOTTO & ASSOCIATI SOCIETA' DI CONSULENZA FINANZIARIA SPA BREVEMENTE ALFA SCF SPA AS47242Host SpA AS57300Comuni Riuniti XL s.r.l.

Upstreams (Transit) (7)

AS12779IT.Gate S.p.A.

AS174Cogent Communications, LLC

AS20766Association "Gitoyen"

AS3303Swisscom (Schweiz) AG

AS34019Hivane Association

AS47242Host SpA

AS6939Hurricane Electric LLC

Downstreams (Customers) (3)

AS34650ALFA DI ADB LUPOTTO & ASSOCIATI SOCIETA' DI CONSULENZA FINANZIARIA SPA BREVEMENTE ALFA SCF SPA

AS47242Host SpA

AS57300Comuni Riuniti XL s.r.l.

IPv4 Prefixes (24)

2.59.5.0/24

2.59.6.0/24

185.28.80.0/24

2.59.4.0/24

178.255.187.0/24

94.125.238.0/24

94.125.232.0/24

178.255.190.0/24

185.28.81.0/24

2.59.7.0/24

178.255.186.0/24

94.125.237.0/24

178.255.191.0/24

185.28.82.0/24

178.255.189.0/24

94.125.235.0/24

94.125.233.0/24

178.255.188.0/24

94.125.239.0/24

178.255.185.0/24

94.125.234.0/24

185.28.83.0/24

178.255.184.0/24

94.125.236.0/24

BGP Peers (6)

AS2027MilkyWan

AS24482SG.GS

AS50877Airbeam S.r.l.

AS51185MainStreaming SpA

AS5394UNIDATA S.p.A.

AS56987ABACLOUDA SAS

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.