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

AS57043

ASN

RIPE NCC

RIR

614

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS57043

NameHOSTKEY-AS

OrganisationHOSTKEY-MNT

Country –

RIRRIPE NCC

Allocated07.07.2011

Abuse contactabuse@hostkey.nl

Network Overview

IPv4 Prefixes614

IPv6 Prefixes7

Upstreams (Transit)85

Downstreams (Customers)26

BGP Peers88

AS Path (BGP neighbours)

Upstreams (Transit)

AS1031PEER 1031 LLC AS1103SURF B.V.AS1267WIND TRE S.P.A.AS12735TurkNet Iletisim Hizmetleri A.S.AS12779IT.Gate S.p.A.AS13194UAB "Bite Lietuva"+79

AS57043HOSTKEY-AS

Downstreams (Customers)

AS142554Vivi 23 Co.,Ltd AS152179GLOBAL COMMUNICATION NETWORK LIMITED AS174Cogent Communications, LLC AS198178365.partners INC AS200313IT WEB LTD AS200394BLS media GmbH+20

Upstreams (Transit) (85)

AS1031PEER 1031 LLC

AS1103SURF B.V.

AS1267WIND TRE S.P.A.

AS12735TurkNet Iletisim Hizmetleri A.S.

AS12779IT.Gate S.p.A.

AS13194UAB "Bite Lietuva"

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS15576NTS workspace AG

AS15802Emirates Integrated Telecommunications Company PJSC

AS15830Equinix, Inc.

AS15958CETIN Ltd. Belgrade

AS16302

AS174Cogent Communications, LLC

Downstreams (Customers) (26)

AS142554Vivi 23 Co.,Ltd

AS152179GLOBAL COMMUNICATION NETWORK LIMITED

AS174Cogent Communications, LLC

AS198178365.partners INC

AS200313IT WEB LTD

AS200394BLS media GmbH

AS205380GeekTeam L.L.C-FZ

AS207461HOSTING INDUSTRY LIMITED

AS211673Mynymbox Hosting LLC

AS212706LIVI HOSTING LTD

AS213459Snowd Security OU

AS214087EXO TECHNOLOGIES spol. s r.o.

IPv4 Prefixes (256)

141.11.0.0/24

103.27.156.0/24

146.0.78.0/24

195.43.147.0/24

82.38.64.0/24

194.87.255.0/24

66.151.40.0/24

212.192.8.0/24

146.0.77.0/24

151.245.137.0/24

172.252.162.0/24

176.119.141.0/24

2.57.242.0/24

82.21.114.0/24

195.133.42.0/24

82.139.193.0/24

89.125.159.0/24

193.17.95.0/24

194.87.55.0/24

194.58.56.0/24

185.212.130.0/24

66.248.207.0/24

151.241.226.0/24

146.0.73.0/24

2.57.243.0/24

104.222.183.0/24

89.125.60.0/24

82.40.49.0/24

222.167.212.0/24

78.17.38.0/24

202.71.12.0/24

5.39.216.0/24

78.17.186.0/24

195.216.186.0/24

185.5.38.0/24

151.241.221.0/24

153.76.227.0/24

45.155.102.0/24

194.147.215.0/24

45.12.34.0/24

89.125.17.0/24

66.151.42.0/24

78.17.158.0/24

5.39.216.0/21

147.90.11.0/24

92.242.164.0/24

222.167.220.0/24

78.17.135.0/24

151.243.225.0/24

66.151.35.0/24

193.84.3.0/24

146.0.76.0/24

89.125.51.0/24

91.229.105.0/24

185.36.125.0/24

78.17.192.0/24

5.39.222.0/24

94.103.178.0/24

45.88.2.0/24

66.248.206.0/24

184.174.69.0/24

81.29.146.0/24

188.130.230.0/24

82.115.28.0/24

217.11.166.0/24

170.168.91.0/24

64.137.109.0/24

89.191.234.0/24

91.108.248.0/24

91.108.247.0/24

107.181.151.0/24

31.207.46.0/24

150.241.228.0/24

195.162.69.0/24

82.38.135.0/24

151.243.173.0/24

43.245.227.0/24

193.124.17.0/24

66.151.34.0/24

132.243.234.0/24

151.243.190.0/24

82.27.117.0/24

195.26.231.0/24

185.130.224.0/24

82.25.39.0/24

31.207.47.0/24

195.42.248.0/24

45.159.181.0/24

194.164.217.0/24

5.253.63.0/24

194.180.206.0/24

46.8.186.0/23

46.17.101.0/24

151.247.219.0/24

202.148.55.0/24

195.14.118.0/24

46.17.98.0/24

147.45.38.0/24

202.148.52.0/24

78.17.24.0/24

148.135.203.0/24

89.35.119.0/24

46.8.41.0/24

213.182.208.0/24

66.248.205.0/24

194.247.182.0/24

132.243.224.0/24

212.16.78.0/24

82.26.91.0/24

188.130.226.0/24

193.124.36.0/24

78.17.106.0/24

5.39.219.0/24

151.245.139.0/24

151.243.232.0/24

151.243.209.0/24

151.245.92.0/24

87.121.58.0/24

82.40.56.0/24

5.39.217.0/24

195.158.192.0/24

194.113.153.0/24

104.253.216.0/24

194.85.249.0/24

78.17.198.0/24

148.135.208.0/24

92.60.78.0/24

82.23.177.0/24

189.74.121.0/24

185.232.52.0/24

147.90.14.0/24

217.28.129.0/24

45.129.78.0/24

2.27.127.0/24

147.90.15.0/24

46.17.100.0/24

78.17.13.0/24

147.90.12.0/24

145.223.3.0/24

191.101.113.0/24

82.25.174.0/24

151.243.181.0/24

79.110.227.0/24

5.188.232.0/24

151.244.251.0/24

152.114.192.0/24

195.162.246.0/24

82.26.193.0/24

45.83.122.0/23

89.125.18.0/24

5.102.37.0/24

82.25.185.0/24

78.17.59.0/24

72.35.242.0/24

45.134.218.0/24

151.243.212.0/24

89.125.119.0/24

212.69.87.0/24

103.7.55.0/24

147.90.10.0/24

45.83.120.0/24

151.244.246.0/24

142.111.162.0/24

178.95.160.0/24

146.0.75.0/24

82.25.12.0/24

151.243.177.0/24

212.237.216.0/24

193.84.2.0/24

185.70.185.0/24

45.87.184.0/24

82.38.139.0/24

89.125.54.0/24

194.247.187.0/24

89.35.129.0/24

45.152.22.0/24

195.96.129.0/24

91.239.211.0/24

176.222.53.0/24

151.243.145.0/24

151.243.198.0/24

151.241.215.0/24

194.180.189.0/24

151.242.88.0/24

185.231.221.0/24

166.1.129.0/24

82.25.190.0/24

77.83.87.0/24

148.135.184.0/24

148.135.175.0/24

5.145.176.0/24

46.17.102.0/24

194.85.251.0/24

194.58.154.0/24

151.243.217.0/24

82.22.50.0/24

141.98.4.0/24

185.130.225.0/24

151.243.182.0/24

193.247.81.0/24

185.238.3.0/24

82.40.58.0/24

193.37.196.0/24

87.58.210.0/24

89.125.49.0/24

78.17.42.0/24

148.135.209.0/24

132.243.235.0/24

167.17.182.0/24

87.239.252.0/24

222.167.208.0/24

77.67.23.0/24

176.222.55.0/24

45.142.2.0/24

195.58.62.0/24

89.125.212.0/24

194.77.71.0/24

194.247.186.0/24

151.241.216.0/24

185.130.226.0/24

166.88.162.0/24

156.67.63.0/24

194.50.94.0/24

85.137.251.0/24

222.167.231.0/24

167.17.176.0/24

82.22.175.0/24

78.17.208.0/24

89.125.25.0/24

150.241.239.0/24

82.38.171.0/24

46.17.103.0/24

146.0.74.0/24

132.243.201.0/24

45.67.202.0/24

89.125.56.0/24

151.241.217.0/24

82.24.195.0/24

176.222.54.0/24

156.67.62.0/24

150.251.145.0/24

192.109.206.0/24

82.38.67.0/24

82.38.66.0/24

31.57.44.0/24

151.243.208.0/24

185.23.239.0/24

141.105.143.0/24

166.88.180.0/24

45.88.1.0/24

222.167.249.0/24

89.125.0.0/24

82.25.58.0/24

194.87.51.0/24

89.40.70.0/24

82.21.7.0/24

IPv6 Prefixes (7)

2a05:b41:100::/40

2a05:b40::/32

2a05:b42::/32

2a0c:b641:330::/44

2a0f:e7c4:10::/48

2a0e:e6c0:8000::/44

2a11:3500::/29

BGP Peers (88)

AS1140Stichting Internet Domeinregistratie Nederland

AS12307Sandro Bolliger trading as Bolliger Network Solutions

AS12637Seeweb s.r.l.

AS12859BIT BV

AS12969Ljósleiðarinn ehf (Sýn)

AS13004Serbian Open Exchange DOO

AS13237euNetworks GmbH

AS14630Invesco Group Services, Inc.

AS14907Wikimedia Foundation Inc.

AS15547netplus.ch SA

AS15605Connesi S.p.A.

AS15623Cyberlink AG

AS200313IT WEB LTD

AS207461HOSTING INDUSTRY LIMITED

AS211673Mynymbox Hosting LLC

AS216154

AS26383

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.