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

AS12042

ASN

ARIN

RIR

109

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS12042

NameENVENTIS

OrganisationFidium

Country –

RIRARIN

Allocated09.03.1999

Network Overview

IPv4 Prefixes109

IPv6 Prefixes2

Upstreams (Transit)7

Downstreams (Customers)41

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS13576SDN Communications AS174Cogent Communications, LLC AS32621Twin City VoIP, Inc.AS57Northern Lights GigaPoP AS64289Macarne.com AS6461Zayo Bandwidth+1

AS12042ENVENTIS

Downstreams (Customers)

AS11517Blue Cross & Blue Shield of Minnesota AS11876HeadFirst Communications AS14230ARK Data Centers LLC AS14440Citon Computer Corp AS14967North Memorial Health Care AS16595The Toro Company+35

Upstreams (Transit) (7)

AS13576SDN Communications

AS174Cogent Communications, LLC

AS32621Twin City VoIP, Inc.

AS57Northern Lights GigaPoP

AS64289Macarne.com

AS6461Zayo Bandwidth

AS6939Hurricane Electric LLC

Downstreams (Customers) (41)

AS11517Blue Cross & Blue Shield of Minnesota

AS11876HeadFirst Communications

AS14230ARK Data Centers LLC

AS14440Citon Computer Corp

AS14967North Memorial Health Care

AS16595The Toro Company

AS17234Gustavus Adolphus College

AS17326Concordia College

AS19284Compeer Financial, ACA

AS20239ALLETE, Inc.

AS21873Northeast Service Cooperative (ASN-NEWMN)

AS22111Mattersight Corporation

IPv4 Prefixes (109)

76.10.116.0/22

64.254.180.0/24

156.47.112.0/20

209.243.30.0/24

216.70.16.0/24

209.23.164.0/24

216.70.0.0/21

206.51.216.0/24

216.251.184.0/21

64.254.176.0/22

72.46.176.0/22

216.70.30.0/24

216.114.192.0/18

216.70.0.0/24

64.21.232.0/21

208.91.44.0/22

216.70.52.0/22

216.251.179.0/24

209.240.248.0/24

156.47.96.0/21

216.251.168.0/21

216.251.163.0/24

216.70.20.0/23

216.70.4.0/24

76.10.64.0/21

67.218.16.0/22

216.70.12.0/24

64.254.182.0/23

69.178.216.0/21

216.70.32.0/20

216.70.33.0/24

161.129.240.0/22

216.70.50.0/24

206.51.213.0/24

209.240.251.0/24

69.178.252.0/22

67.218.21.0/24

67.218.20.0/24

156.47.104.0/23

76.10.119.0/24

198.144.0.0/20

209.23.180.0/24

216.251.167.0/24

206.51.200.0/21

216.70.14.0/23

216.70.18.0/23

69.24.160.0/19

67.218.16.0/20

206.51.217.0/24

216.70.25.0/24

216.114.205.0/24

209.240.224.0/19

216.251.160.0/22

76.10.117.0/24

66.220.208.0/20

216.70.51.0/24

206.51.192.0/24

156.47.96.0/19

216.251.164.0/24

76.10.120.0/23

206.51.219.0/24

209.240.224.0/24

206.51.194.0/24

216.251.160.0/24

64.61.192.0/18

205.166.20.0/24

216.70.48.0/24

76.10.66.0/24

216.251.180.0/22

216.251.170.0/24

216.70.8.0/24

216.70.2.0/24

209.243.24.0/23

76.10.68.0/23

64.254.184.0/21

216.70.24.0/24

68.232.224.0/19

162.107.240.0/21

209.23.128.0/18

67.218.24.0/24

67.218.23.0/24

209.240.227.0/24

192.103.4.0/24

216.70.62.0/24

64.255.128.0/20

206.51.218.0/24

206.51.220.0/24

76.10.64.0/24

156.47.96.0/20

216.70.23.0/24

206.51.198.0/24

192.77.113.0/24

76.10.122.0/23

206.51.196.0/24

216.70.63.0/24

216.70.10.0/23

198.144.12.0/24

216.251.176.0/23

209.243.12.0/22

216.114.192.0/24

76.10.65.0/24

206.51.196.0/22

206.51.208.0/22

206.51.195.0/24

216.251.165.0/24

64.21.248.0/24

64.21.240.0/21

206.51.214.0/24

209.243.26.0/23

IPv6 Prefixes (2)

2605:7e00::/32

2605:9400::/32

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.