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

AS12445

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS12445

NameSPIDERNET-AS

OrganisationA2A Smart City S.P.A

Country –

RIRRIPE NCC

Allocated19.12.2001

Abuse contactabuse@a2asmartcity.net

Network Overview

IPv4 Prefixes14

IPv6 Prefixes0

Upstreams (Transit)18

Downstreams (Customers)4

BGP Peers18

AS Path (BGP neighbours)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS137409GSL Networks Pty LTD AS14840BR.DIGITAL AS22356Durand do Brasil Ltda AS24961WIIT AG (fka. myLoc Managed IT AG)AS263444Open X Tecnologia Ltda+12

AS12445SPIDERNET-AS

Downstreams (Customers)

AS25002A2A Smart City S.P.A AS28831Phoenix Informatica SRL AS42538COMUNE DI BRESCIA AS5382PLANET SERVICE SRL

Upstreams (Transit) (18)

AS1299Arelion (fka. Telia Carrier)

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS22356Durand do Brasil Ltda

AS24961WIIT AG (fka. myLoc Managed IT AG)

AS263444Open X Tecnologia Ltda

AS28716Retelit Digital Services S.p.A.

AS31543myNet GmbH

AS39120Convergenze S.p.A.

AS4455IX Reach Ltd

AS5405Inter.link GmbH

AS60171AFR-IX TELECOM S.A.

Downstreams (Customers) (4)

AS25002A2A Smart City S.P.A

AS28831Phoenix Informatica SRL

AS42538COMUNE DI BRESCIA

AS5382PLANET SERVICE SRL

IPv4 Prefixes (14)

217.146.192.0/21

195.206.0.0/19

82.115.189.0/24

81.88.240.0/20

79.98.0.0/21

212.38.32.0/19

217.146.200.0/21

85.88.192.0/19

195.206.15.0/24

81.88.224.0/20

185.39.240.0/22

82.115.160.0/19

83.137.160.0/21

195.206.13.0/24

BGP Peers (18)

AS12637Seeweb s.r.l.

AS12779IT.Gate S.p.A.

AS13237euNetworks GmbH

AS15605Connesi S.p.A.

AS198150SIACOM JSC

AS202032GOLINE SA

AS212483LEVEL EIGHTY-SIX COMMUNICATIONS LTD

AS24482SG.GS

AS49544i3D.net B.V

AS49605Digital Telecommunication Services S.r.l.

AS49709Videobyte S.r.l.

AS50877Airbeam S.r.l.

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.