Eine Autonomous System Number (ASN) ist eine eindeutige Nummer, die einem Netzwerk im globalen Internet-Routing zugewiesen wird. Jeder Provider, der direkt am Internet teilnimmt, besitzt eine eigene ASN (z. B. AS3320 für die Deutsche Telekom).

Was sind Upstreams, Peers und Prefixes?

Upstreams sind Transit-Provider, über die ein AS seine Routen ins Internet bekommt. Peers sind Netzwerke mit direktem Traffic-Austausch. Prefixes sind die IP-Adressbereiche, die das AS per BGP ankündigt.

Woher stammen die ASN-Daten?

Die Daten kommen aus den offiziellen RDAP-Diensten der RIRs (RIPE, ARIN u. a.) sowie aus RIPEstat (Prefixes und Nachbar-ASNs).

ASN-Lookup – Netzwerke, Upstreams und Prefixes

AS4538

ASN

APNIC

RIR

3526

IPv4-Prefixes

IPv6-Prefixes

AS-Informationen

ASNAS4538

NameERX-CERNET-BKB

Land

RIRAPNIC

Typ–

Zugewiesen04.09.2008

Abuseabuse@cernet.edu.cn

Netzwerk-Übersicht

IPv4-Prefixes3526

IPv6-Prefixes9

Upstreams (Transit)22

Downstreams (Kunden)29

BGP-Peers3

AS-Pfad (BGP-Nachbarn)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS140570Hong Kong Beecloud System Technology Services Limited AS15412Flag Telecom UK Limited AS174Cogent Communications, LLC AS23764China Telecom Global AS23910China Next Generation Internet CERNET2+16

AS4538ERX-CERNET-BKB

Downstreams (Kunden)

AS131578Beijing Foreign Studies University AS133111CERNET New Technology Co., Ltd AS133465Duke Kunshan University AS134169CERNEWTECH (Beijing) co.,LTD AS138369CERNET2 regional IX at Shenzhen University AS138371CERNET2 regional IX at Ocean University of China+23

Upstreams (Transit) (22)

AS1299Arelion (fka. Telia Carrier)

AS140570Hong Kong Beecloud System Technology Services Limited

AS15412Flag Telecom UK Limited

AS174Cogent Communications, LLC

AS23764China Telecom Global

AS23910China Next Generation Internet CERNET2

AS23911China Next Generation Internet Beijing IX

AS2914NTT America, Inc.

AS3491PCCW Global (HK) Ltd.

AS39120Convergenze S.p.A.

AS4134China Telecom Backbone

AS4635HKIX Route Servers

Downstreams (Kunden) (29)

AS131578Beijing Foreign Studies University

AS133111CERNET New Technology Co., Ltd

AS133465Duke Kunshan University

AS134169CERNEWTECH (Beijing) co.,LTD

AS138369CERNET2 regional IX at Shenzhen University

AS138371CERNET2 regional IX at Ocean University of China

AS138378CERNET2 regional IX at Yunnan University

AS138441CERNET2 regional IX at Xinjiang University

AS139139Shenyang Agricultural University

AS151229Shenyang Aerospace University

AS23910China Next Generation Internet CERNET2

AS23911China Next Generation Internet Beijing IX

IPv4-Prefixes (256)

202.114.37.0/24

59.69.104.0/22

59.73.168.0/21

59.71.0.0/19

222.19.240.0/20

115.25.72.0/21

125.218.0.0/16

210.42.69.0/24

210.42.140.0/24

115.156.0.0/21

202.38.64.0/18

202.192.202.0/24

210.27.80.0/24

202.207.96.0/20

202.200.16.0/21

202.179.240.0/20

219.221.208.0/20

202.115.0.0/17

210.27.82.0/24

222.16.184.0/21

222.16.176.0/22

121.194.224.0/19

222.16.156.0/24

59.71.62.0/23

113.55.224.0/20

115.24.0.0/14

222.200.210.0/23

180.208.59.0/24

222.27.164.0/22

122.205.0.0/22

210.41.254.0/23

222.198.248.0/22

222.203.154.0/23

42.247.1.0/24

162.105.0.0/17

101.4.156.0/24

211.84.24.0/21

210.31.104.0/21

218.197.80.0/24

59.70.224.0/19

202.114.80.0/20

210.27.160.0/21

59.68.84.0/22

125.216.112.0/20

58.155.63.0/24

125.219.108.0/22

202.118.168.0/22

222.198.32.0/19

210.41.244.0/24

59.71.48.0/22

202.112.64.0/20

202.200.240.0/20

101.4.16.0/20

121.48.17.0/24

59.74.96.0/20

218.193.196.0/22

219.217.228.0/24

210.27.152.0/22

111.116.0.0/15

210.35.240.0/24

202.193.0.0/16

210.40.128.0/19

110.64.206.0/24

202.197.111.0/24

210.43.160.0/20

59.70.128.0/19

219.223.0.0/16

115.156.96.0/19

222.19.112.0/20

218.197.0.0/21

219.244.0.0/20

218.195.40.0/21

210.47.240.0/20

202.201.108.0/22

202.206.0.0/20

222.24.94.0/24

210.40.1.0/24

202.197.64.0/20

180.84.16.0/21

120.95.0.0/18

222.27.180.0/22

59.67.164.0/22

219.246.224.0/19

49.122.16.0/21

218.197.96.0/20

219.216.128.0/19

222.205.0.0/16

122.206.112.0/21

210.30.64.0/20

218.195.64.0/24

202.114.192.0/20

166.111.4.0/24

183.168.128.0/20

202.205.112.0/24

222.202.132.0/22

202.207.130.0/24

175.185.0.0/16

210.30.80.0/20

222.206.224.0/21

210.28.0.0/14

118.230.96.0/19

115.25.80.0/22

122.206.120.0/21

222.17.0.0/16

222.26.192.0/19

49.123.0.0/20

210.41.250.0/24

211.71.163.0/24

114.212.0.0/15

183.172.128.0/18

222.203.104.0/23

222.199.224.0/19

219.216.8.0/21

222.195.128.0/24

125.223.62.0/24

222.200.238.0/24

202.117.128.0/24

118.202.224.0/20

58.155.168.0/22

218.193.194.0/23

59.65.160.0/19

210.38.0.0/16

59.69.64.0/20

59.71.120.0/23

210.43.0.0/20

202.112.26.0/24

218.195.128.0/24

115.155.64.0/18

166.111.204.0/24

59.76.65.0/24

101.6.128.0/17

219.224.192.0/19

202.199.224.0/20

202.202.200.0/21

210.41.228.0/24

210.41.251.0/24

210.42.144.0/24

111.115.192.0/20

59.70.36.0/24

202.204.24.0/22

210.27.112.0/21

58.200.77.0/24

222.19.168.0/21

211.67.128.0/20

58.155.134.0/23

211.85.192.0/20

202.118.68.0/24

219.227.0.0/16

59.75.208.0/23

219.226.136.0/21

210.35.224.0/20

210.43.152.0/21

222.23.192.0/18

222.30.200.0/22

222.23.32.0/20

222.31.64.0/18

210.26.183.0/24

202.202.32.0/20

219.244.208.0/24

222.201.0.0/20

59.69.108.0/22

59.65.248.0/21

210.41.248.0/24

125.221.64.0/19

202.204.192.0/20

210.30.232.0/21

218.198.152.0/21

210.27.144.0/21

121.192.137.0/24

202.112.224.0/21

210.26.17.0/24

210.40.240.0/21

210.28.64.0/20

210.47.224.0/20

219.222.80.0/20

219.222.128.0/20

58.194.32.0/19

202.200.168.0/21

219.226.144.0/20

59.76.64.0/24

202.198.99.0/24

222.26.0.0/19

219.242.176.0/21

222.30.0.0/21

59.65.96.0/20

211.81.192.0/21

202.115.176.0/20

218.197.87.0/24

59.64.80.0/20

59.69.85.0/24

210.26.77.0/24

122.205.4.0/22

42.247.3.0/24

210.47.98.0/23

202.200.176.0/20

202.204.112.0/20

58.200.218.0/23

210.27.84.0/24

202.196.0.0/15

120.95.160.0/19

202.201.224.0/20

222.201.160.0/19

111.116.96.0/20

125.216.104.0/24

116.56.160.0/23

121.194.96.0/20

219.228.192.0/20

211.68.72.0/21

111.116.0.0/18

222.203.132.0/23

219.226.12.0/24

58.200.4.0/24

202.204.60.0/24

49.209.64.0/18

219.244.29.0/24

59.75.104.0/21

222.16.208.0/20

121.193.0.0/16

116.56.128.0/19

49.140.0.0/15

59.75.56.0/23

121.49.195.0/24

110.64.192.0/21

222.199.44.0/24

210.42.70.0/24

223.128.0.0/17

222.21.192.0/20

218.196.240.0/20

166.111.0.0/17

202.194.144.0/21

202.207.48.0/20

222.21.223.0/24

115.26.48.0/20

58.155.48.0/20

219.242.0.0/15

202.197.2.0/24

125.221.112.0/20

202.205.224.0/22

210.26.0.0/20

202.207.224.0/21

115.155.224.0/20

202.116.0.0/16

222.203.158.0/23

115.158.92.0/22

115.158.84.0/23

58.206.129.0/24

202.112.144.0/20

210.40.112.0/22

210.27.144.0/24

210.26.184.0/24

125.223.232.0/22

125.220.120.0/23

210.29.168.0/21

116.56.82.0/23

101.4.56.0/24

219.242.128.0/20

IPv6-Prefixes (9)

2001:da8:257::/48

2001:daa:4::/48

2001:da8:ff00::/40

2001:daa:5::/48

2001:daa:9::/48

2001:daa:1::/48

2001:daa:2::/48

2001:daa:6::/48

2001:daa:3::/48

BGP-Peers (3)

AS24482SG.GS

AS36236NetActuate, Inc

AS49544i3D.net B.V

Meine IP ASN-Lookup IP-Lookup WHOIS DNS-Lookup

Was ist eine ASN?

Eine Autonomous System Number (ASN) ist eine eindeutige Nummer die einem Netzwerk im Internet zugewiesen wird. Upstreams sind die Transit-Provider über die das AS seine Routen ins Internet bekommt. Peers sind Netzwerke mit denen direkter Traffic-Austausch stattfindet. Prefixes sind die IP-Adressbereiche die das AS ins Internet ankündigt. Daten via BGPView API.