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

AS13576

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS13576

NameSDNW-13576

OrganisationSDN Communications

Country –

RIRARIN

Allocated08.07.1999

Network Overview

IPv4 Prefixes68

IPv6 Prefixes3

Upstreams (Transit)9

Downstreams (Customers)49

BGP Peers2

AS Path (BGP neighbours)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS174Cogent Communications, LLC AS286GTT Communications Inc.AS2914NTT America, Inc.AS3257GTT Communications Inc.AS32621Twin City VoIP, Inc.+3

AS13576SDNW-13576

Downstreams (Customers)

AS10551Monument Health Rapid City Hospital, Inc.AS12042Fidium AS14675Plains Commerce Bank AS14789Cloudflare, Inc.AS14955Northern Valley Communications LLC AS15100Bevcomm+43

Upstreams (Transit) (9)

AS1299Arelion (fka. Telia Carrier)

AS174Cogent Communications, LLC

AS286GTT Communications Inc.

AS2914NTT America, Inc.

AS3257GTT Communications Inc.

AS32621Twin City VoIP, Inc.

AS64289Macarne.com

AS6461Zayo Bandwidth

AS6939Hurricane Electric LLC

Downstreams (Customers) (49)

AS10551Monument Health Rapid City Hospital, Inc.

AS12042Fidium

AS14675Plains Commerce Bank

AS14789Cloudflare, Inc.

AS14955Northern Valley Communications LLC

AS15100Bevcomm

AS15157NORTHWESTERN CORPORATION

AS15204INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC.

AS17203Beresford Municipal Telephone Company

AS17378TierPoint, LLC

AS18785Santel Communications Cooperative, Inc.

AS18870Great Western Bank

IPv4 Prefixes (68)

216.106.192.0/18

204.80.157.0/24

66.115.226.0/24

208.53.221.0/24

216.249.192.0/18

208.53.196.0/24

66.115.221.0/24

66.115.227.0/24

155.103.92.0/24

66.115.192.0/18

208.53.202.0/24

216.249.214.0/24

208.53.207.0/24

208.53.194.0/24

216.249.222.0/23

142.202.132.0/22

64.33.252.0/24

216.249.197.0/24

170.199.220.0/23

208.53.198.0/23

68.168.224.0/20

66.128.173.0/24

66.115.252.0/23

208.53.192.0/18

170.199.219.0/24

66.231.21.0/24

66.231.26.0/24

216.249.195.0/24

66.231.0.0/19

66.115.201.0/24

66.231.15.0/24

216.106.232.0/22

216.249.242.0/23

66.128.176.0/24

104.167.204.0/22

206.85.176.0/21

208.53.252.0/24

66.231.29.0/24

38.191.156.0/22

216.249.227.0/24

162.120.74.0/23

66.128.174.0/24

66.128.166.0/23

66.115.198.0/24

66.231.0.0/24

66.128.179.0/24

216.249.240.0/24

216.106.216.0/22

66.115.234.0/24

66.115.223.0/24

66.115.224.0/24

208.53.211.0/24

208.53.193.0/24

209.151.181.0/24

170.199.218.0/24

208.53.208.0/24

66.115.254.0/24

66.128.160.0/19

209.151.176.0/20

66.128.175.0/24

76.76.12.0/24

208.53.209.0/24

199.96.68.0/22

208.53.197.0/24

216.249.224.0/23

66.128.171.0/24

64.33.224.0/19

208.53.203.0/24

IPv6 Prefixes (3)

2607:fc00::/32

2602:ff5b::/36

2605:4b80:f000::/36

BGP Peers (2)

AS1828PacketFabric / Unitas Global

AS36236NetActuate, Inc

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.