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

AS2018

ASN

AFRINIC

RIR

375

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS2018

NameORG-UP1-AFRINIC

OrganisationTertiary Education and Research Network of South Africa

Country –

RIRAFRINIC

Allocated21.02.2005

Network Overview

IPv4 Prefixes375

IPv6 Prefixes15

Upstreams (Transit)68

Downstreams (Customers)7

BGP Peers78

AS Path (BGP neighbours)

Upstreams (Transit)

AS1031PEER 1031 LLC AS1103SURF B.V.AS11537Internet2 AS12552GlobalConnect (IP-Only)AS1267WIND TRE S.P.A.AS12779IT.Gate S.p.A.+62

AS2018ORG-UP1-AFRINIC

Downstreams (Customers)

AS20144ICANN - L-root AS329522South African National Space Agency (SANSA)AS36982University of Cape Town AS37501University of the Free State AS37520Rhodes University AS6149TENET (The UNINET Project)+1

Upstreams (Transit) (68)

AS1031PEER 1031 LLC

AS1103SURF B.V.

AS11537Internet2

AS12552GlobalConnect (IP-Only)

AS1267WIND TRE S.P.A.

AS12779IT.Gate S.p.A.

AS13194UAB "Bite Lietuva"

AS14840BR.DIGITAL

AS15576NTS workspace AG

AS15802Emirates Integrated Telecommunications Company PJSC

AS15958CETIN Ltd. Belgrade

AS174Cogent Communications, LLC

Downstreams (Customers) (7)

AS20144ICANN - L-root

AS329522South African National Space Agency (SANSA)

AS36982University of Cape Town

AS37501University of the Free State

AS37520Rhodes University

AS6149TENET (The UNINET Project)

AS8094North West University

IPv4 Prefixes (256)

196.24.39.0/24

196.24.96.0/24

196.21.76.0/23

196.11.140.0/23

196.24.69.0/24

168.172.174.0/23

168.172.136.0/24

198.54.83.0/24

168.172.24.0/21

154.114.71.0/24

196.24.68.0/24

196.21.84.0/22

196.21.80.0/22

196.10.121.0/24

196.21.230.0/24

196.21.144.0/24

154.115.16.0/21

168.172.87.0/24

168.172.64.0/18

146.230.0.0/17

155.232.38.0/24

155.232.61.0/24

168.172.144.0/24

154.114.70.0/24

154.114.47.0/24

152.106.5.0/24

196.21.200.0/24

196.24.16.0/24

154.114.56.0/24

196.24.38.0/24

168.172.212.0/24

146.64.8.0/24

146.64.0.0/17

196.21.148.0/22

196.21.231.0/24

168.172.94.0/24

196.21.174.0/24

196.21.136.0/22

196.21.116.0/24

154.114.14.0/24

168.172.193.0/24

196.21.109.0/24

196.21.186.0/24

146.64.84.0/24

155.232.250.0/24

196.21.242.0/24

196.13.119.0/24

168.172.143.0/24

155.232.26.0/24

196.21.175.0/24

196.24.220.0/22

196.24.50.0/24

137.215.0.0/17

196.21.143.0/24

196.21.104.0/24

137.214.0.0/16

155.238.128.0/17

198.54.66.0/24

196.21.229.0/24

196.21.73.0/24

196.21.252.0/24

163.200.0.0/16

192.96.247.0/24

196.24.46.0/24

168.172.47.0/24

196.24.217.0/24

196.24.105.0/24

168.172.0.0/16

168.172.251.0/24

196.21.124.0/22

192.102.9.0/24

168.172.109.0/24

168.172.132.0/24

146.64.85.0/24

196.21.112.0/23

196.21.192.0/21

168.172.225.0/24

196.13.150.0/24

146.64.128.0/17

196.21.227.0/24

146.64.5.0/24

198.54.58.0/24

196.249.0.0/18

196.21.250.0/24

143.128.0.0/17

155.240.160.0/19

168.172.95.0/24

196.24.219.0/24

196.24.242.0/24

196.24.112.0/23

168.172.130.0/24

196.24.57.0/24

192.94.61.0/24

196.24.218.0/24

196.21.115.0/24

137.214.0.0/17

196.24.250.0/24

196.24.241.0/24

196.6.198.0/24

143.128.0.0/16

168.172.152.0/24

196.24.85.0/24

168.172.88.0/24

168.172.145.0/24

196.21.98.0/24

152.112.0.0/17

196.24.97.0/24

196.21.69.0/24

146.230.0.0/16

196.21.97.0/24

192.96.8.0/24

196.24.116.0/23

196.24.6.0/24

168.172.129.0/24

196.21.168.0/24

196.24.224.0/20

154.114.27.0/24

152.106.19.0/24

196.21.32.0/24

198.54.174.0/24

196.249.0.0/19

192.96.248.0/23

168.172.252.0/24

154.114.13.0/24

168.172.1.0/24

154.115.24.0/21

196.24.60.0/24

146.64.19.0/24

154.114.10.0/23

168.172.160.0/24

168.172.134.0/24

146.64.0.0/16

168.172.200.0/21

196.21.60.0/24

196.13.185.0/24

192.96.252.0/24

196.21.245.0/24

168.172.137.0/24

196.11.142.0/23

196.21.237.0/24

196.21.59.0/24

146.64.28.0/24

196.21.160.0/24

154.114.48.0/23

196.24.216.0/24

196.24.19.0/24

192.96.2.0/24

154.114.41.0/24

196.21.147.0/24

192.96.15.0/24

196.21.0.0/16

154.114.33.0/24

196.24.4.0/24

192.96.95.0/24

196.21.120.0/22

196.13.115.0/24

146.64.24.0/24

196.24.18.0/24

196.21.225.0/24

196.24.41.0/24

196.24.24.0/21

196.24.83.0/24

168.172.43.0/24

168.172.208.0/22

168.172.196.0/22

155.232.0.0/16

198.54.251.0/24

154.114.29.0/24

154.114.52.0/24

146.232.128.0/17

154.114.36.0/24

152.106.6.0/24

168.172.151.0/24

152.112.0.0/16

196.21.64.0/21

168.172.131.0/24

198.54.173.0/24

168.172.162.0/23

168.172.154.0/24

196.11.138.0/23

196.21.176.0/22

196.21.56.0/22

152.112.128.0/17

196.21.206.0/24

154.114.40.0/24

196.21.235.0/24

154.114.17.0/24

196.11.136.0/23

196.21.61.0/24

154.114.50.0/23

137.214.128.0/17

154.114.69.0/24

152.106.18.0/24

196.21.188.0/24

196.21.133.0/24

196.21.187.0/24

168.172.230.0/23

196.21.146.0/24

155.232.195.0/24

192.96.94.0/24

196.11.136.0/22

146.64.58.0/24

196.24.58.0/24

196.24.44.0/24

168.172.133.0/24

196.21.236.0/24

154.114.28.0/24

146.64.80.0/24

155.232.25.0/24

196.21.89.0/24

168.172.41.0/24

168.172.48.0/24

155.232.240.0/24

168.172.240.0/23

155.240.192.0/19

168.172.147.0/24

168.172.170.0/24

196.248.1.0/24

196.10.203.0/24

192.96.140.0/24

168.172.20.0/22

154.115.0.0/17

155.232.10.0/24

196.21.197.0/24

155.232.186.0/24

196.24.17.0/24

192.96.250.0/24

196.24.103.0/24

196.21.86.0/23

154.114.72.0/23

192.94.210.0/24

155.232.251.0/24

168.172.243.0/24

192.96.142.0/24

152.106.102.0/24

196.21.243.0/24

196.248.128.0/17

155.238.0.0/16

152.106.99.0/24

196.24.245.0/24

196.21.142.0/24

196.24.246.0/24

155.232.252.0/24

196.21.226.0/24

196.13.200.0/24

137.215.128.0/17

196.13.190.0/24

168.172.142.0/24

146.64.216.0/21

152.106.120.0/24

196.24.73.0/24

196.24.72.0/24

196.13.116.0/24

196.21.224.0/24

196.24.99.0/24

196.21.189.0/24

IPv6 Prefixes (15)

2001:4200:3400::/48

2001:4200:4b::/48

2001:4200:3200::/48

2001:4200:7800::/48

2001:4200:48::/48

2001:4200:4a::/48

2001:4200:8000::/44

2001:43f8:700::/44

2001:4200:389::/48

2001:4200:3020::/48

2001:4200::/32

2001:4200:597::/48

2001:4200:7000::/48

2001:4200:3200::/44

2001:4200:494::/48

BGP Peers (78)

AS1140Stichting Internet Domeinregistratie Nederland

AS12637Seeweb s.r.l.

AS12859BIT BV

AS12969Ljósleiðarinn ehf (Sýn)

AS13237euNetworks GmbH

AS14630Invesco Group Services, Inc.

AS14907Wikimedia Foundation Inc.

AS15547netplus.ch SA

AS15605Connesi S.p.A.

AS16347ADISTA SAS

AS17639Converge ICT Solutions Inc.

AS18106Viewqwest Pte Ltd

AS20144ICANN - L-root

AS329522South African National Space Agency (SANSA)

AS36982University of Cape Town

AS37501University of the Free State

AS37520Rhodes University

AS6149TENET (The UNINET Project)

AS65531

AS8094North West University

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.