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

AS25455

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS25455

NameGUARDFOX-AS

OrganisationGUARDFOX-MNT

Country –

RIRRIPE NCC

Allocated17.06.2015

Abuse contactabuse@guardfox.net

Network Overview

IPv4 Prefixes6

IPv6 Prefixes3

Upstreams (Transit)35

Downstreams (Customers)0

BGP Peers50

AS Path (BGP neighbours)

Upstreams (Transit)

AS12779IT.Gate S.p.A.AS14840BR.DIGITAL AS15836Arax-Impex s.r.l.AS174Cogent Communications, LLC AS1764Next Layer Telecommunications AS20326TeraSwitch Networks Inc.+29

AS25455GUARDFOX-AS

Downstreams (Customers)

none

Upstreams (Transit) (35)

AS12779IT.Gate S.p.A.

AS14840BR.DIGITAL

AS15836Arax-Impex s.r.l.

AS174Cogent Communications, LLC

AS1764Next Layer Telecommunications

AS20326TeraSwitch Networks Inc.

AS20764CJSC RASCOM

AS20766Association "Gitoyen"

AS24961WIIT AG (fka. myLoc Managed IT AG)

AS25091IP-Max SA

AS30844Liquid Intelligent Technologies

AS31252StarNet Solutii SRL

IPv4 Prefixes (6)

83.143.68.0/22

94.232.30.0/24

31.210.169.0/24

185.79.40.0/22

91.90.200.0/21

92.43.164.0/23

IPv6 Prefixes (3)

2a05:7140::/32

2a05:7144::/30

2a05:7141::/32

BGP Peers (50)

AS1103SURF B.V.

AS1140Stichting Internet Domeinregistratie Nederland

AS12637Seeweb s.r.l.

AS12859BIT BV

AS12969Ljósleiðarinn ehf (Sýn)

AS13237euNetworks GmbH

AS14630Invesco Group Services, Inc.

AS15547netplus.ch SA

AS15605Connesi S.p.A.

AS17639Converge ICT Solutions Inc.

AS18106Viewqwest Pte Ltd

AS1828PacketFabric / Unitas Global

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.