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

AS39657

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS39657

NameComeser-AS

OrganisationCOMESER-MNT

Country –

RIRRIPE NCC

Allocated04.04.2006

Abuse contactlir@comeser.it

Network Overview

IPv4 Prefixes14

IPv6 Prefixes0

Upstreams (Transit)18

Downstreams (Customers)0

BGP Peers14

AS Path (BGP neighbours)

Upstreams (Transit)

AS14840BR.DIGITAL AS216265ARISTO NETWORKS LTD AS216309InvisionTech Group S.r.l.AS22356Durand do Brasil Ltda AS24961WIIT AG (fka. myLoc Managed IT AG)AS2593Universita di Padova+12

AS39657Comeser-AS

Downstreams (Customers)

none

Upstreams (Transit) (18)

AS14840BR.DIGITAL

AS216265ARISTO NETWORKS LTD

AS216309InvisionTech Group S.r.l.

AS22356Durand do Brasil Ltda

AS24961WIIT AG (fka. myLoc Managed IT AG)

AS2593Universita di Padova

AS263444Open X Tecnologia Ltda

AS264409Huge Networks

AS28716Retelit Digital Services S.p.A.

AS31034Aruba S.p.A.

AS3313BT Italia S.p.A.

AS41720Revolution Provider S.r.l.

IPv4 Prefixes (14)

217.30.2.0/24

93.88.32.0/20

81.93.32.0/21

81.93.44.0/22

81.93.32.0/20

185.63.12.0/22

81.93.40.0/21

185.63.14.0/24

81.93.32.0/22

217.30.0.0/23

217.30.3.0/24

81.93.40.0/22

81.30.16.0/20

217.30.0.0/22

BGP Peers (14)

AS12637Seeweb s.r.l.

AS12779IT.Gate S.p.A.

AS15605Connesi S.p.A.

AS198150SIACOM JSC

AS20811Retelit Digital Services S.p.A.

AS20912Panservice s.a.s. di Cuseo Fabrizio & C.

AS212483LEVEL EIGHTY-SIX COMMUNICATIONS LTD

AS49605Digital Telecommunication Services S.r.l.

AS49709Videobyte S.r.l.

AS51185MainStreaming SpA

AS5392TELNET S.r.l.

AS5394UNIDATA S.p.A.

AS57111

AS59919

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.