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

AS13335

ASN

ARIN

RIR

2360

IPv4 Prefixes

2950

IPv6 Prefixes

AS Information

ASNAS13335

NameCLOUDFLARENET

OrganisationCloudflare, Inc.

Country –

RIRARIN

Allocated15.07.2010

Abuse contactabuse@cloudflare.com

Network Overview

IPv4 Prefixes2360

IPv6 Prefixes2950

Upstreams (Transit)327

Downstreams (Customers)1008

BGP Peers1187

AS Path (BGP neighbours)

Upstreams (Transit)

AS10030Celcom Axiata Berhad AS10094Unified National Networks AS1031PEER 1031 LLC AS10429Vivo (TELEFÔNICA BRASIL)AS11432Telium Telecomunicações Ltda AS11664Techtel LMDS Comunicaciones Interactivas S.A.+321

AS13335CLOUDFLARENET

Downstreams (Customers)

AS1002Bytefilter LLC AS1003andrewnet AS10127CLSA Ltd AS1015Server Starter Host LLC AS10235National Australia Bank Limited AS10372Wells Fargo Bank, N.A.+1002

Upstreams (Transit) (100)

AS10030Celcom Axiata Berhad

AS10094Unified National Networks

AS1031PEER 1031 LLC

AS10429Vivo (TELEFÔNICA BRASIL)

AS11432Telium Telecomunicações Ltda

AS11664Techtel LMDS Comunicaciones Interactivas S.A.

AS1221Telstra Limited

AS12252America Movil Peru S.A.C.

AS12310iNES GROUP SRL

AS12389Rostelecom PJSC

AS12552GlobalConnect (IP-Only)

AS1257Tele2 Sverige AB

Downstreams (Customers) (100)

AS1002Bytefilter LLC

AS1003andrewnet

AS10127CLSA Ltd

AS1015Server Starter Host LLC

AS10235National Australia Bank Limited

AS10372Wells Fargo Bank, N.A.

AS10376Wells Fargo Bank, N.A.

AS10384Tennessee Valley Authority

AS10397Momentum Telecom, Inc.

AS10461Eze Castle Software LLC

AS10584TradeWeb, LLC

AS10666Allergan, Inc.

AS132847Network Solutions Group Pty Ltd

IPv4 Prefixes (256)

172.70.89.0/24

162.158.106.0/24

172.69.46.0/24

104.29.111.0/24

141.101.110.0/24

172.64.201.0/24

104.20.48.0/20

104.22.46.0/24

104.22.26.0/24

104.16.160.0/20

104.28.221.0/24

172.71.215.0/24

74.1.17.0/24

104.23.173.0/24

104.23.161.0/24

104.28.201.0/24

172.68.33.0/24

104.28.155.0/24

104.28.186.0/24

104.28.183.0/24

172.68.29.0/24

162.159.107.0/24

104.18.45.0/24

104.29.79.0/24

188.42.98.0/24

104.17.64.0/20

104.18.64.0/20

162.159.118.0/24

172.69.110.0/24

162.158.225.0/24

172.68.30.0/24

162.159.26.0/24

104.31.18.0/24

104.29.131.0/24

104.18.40.0/24

104.30.32.0/23

168.151.31.0/24

104.25.128.0/20

172.71.110.0/24

172.71.14.0/24

162.158.32.0/24

194.77.235.0/24

104.28.82.0/24

104.18.176.0/20

172.70.213.0/24

203.168.192.0/20

172.70.178.0/24

172.69.179.0/24

162.158.116.0/24

162.159.2.0/24

172.64.149.0/24

162.158.141.0/24

146.19.108.0/24

172.69.214.0/24

162.159.7.0/24

172.69.233.0/24

162.158.12.0/24

104.28.59.0/24

141.101.82.0/24

194.34.90.0/24

172.64.146.0/24

172.71.240.0/24

104.22.44.0/24

172.71.217.0/24

172.71.169.0/24

94.156.10.0/24

104.28.166.0/24

138.249.148.0/24

104.28.1.0/24

145.63.64.0/24

162.159.48.0/20

104.31.0.0/21

172.68.165.0/24

172.70.159.0/24

172.71.252.0/24

104.18.51.0/24

172.69.188.0/24

104.28.65.0/24

104.28.54.0/24

8.44.61.0/24

172.69.223.0/24

104.22.115.0/24

104.23.171.0/24

173.0.92.0/24

172.69.50.0/24

162.158.118.0/24

172.70.182.0/24

172.71.197.0/24

172.71.209.0/24

198.252.206.0/24

172.64.97.0/24

103.21.244.0/24

141.101.76.0/23

172.70.191.0/24

172.70.203.0/24

104.28.85.0/24

172.64.152.0/24

104.17.176.0/20

162.158.245.0/24

158.94.212.0/24

61.32.240.0/24

104.22.134.0/24

104.22.83.0/24

104.28.108.0/24

162.159.16.0/24

162.158.22.0/24

192.86.150.0/24

172.70.34.0/24

162.158.236.0/24

8.31.161.0/24

104.27.64.0/20

104.28.45.0/24

104.29.62.0/24

172.68.14.0/24

104.28.131.0/24

172.68.110.0/24

188.95.12.0/24

104.29.92.0/24

172.64.153.0/24

172.68.146.0/24

162.158.74.0/24

104.22.105.0/24

185.38.25.0/24

104.156.176.0/24

82.26.156.0/24

141.101.72.0/24

162.159.119.0/24

162.158.226.0/24

172.66.192.0/20

104.28.75.0/24

162.159.91.0/24

194.34.79.0/24

66.235.200.0/24

104.22.9.0/24

172.68.242.0/24

218.33.93.0/24

156.11.149.0/24

172.68.8.0/24

172.70.115.0/24

104.28.177.0/24

64.40.138.0/24

172.69.10.0/24

172.71.233.0/24

172.71.198.0/24

172.69.40.0/24

104.28.212.0/24

104.234.133.0/24

172.69.17.0/24

104.22.50.0/24

194.34.88.0/24

104.23.237.0/24

172.70.184.0/24

104.28.66.0/24

172.68.23.0/24

162.158.193.0/24

104.28.146.0/24

104.28.76.0/24

172.69.216.0/24

23.131.204.0/24

104.29.105.0/24

216.163.179.0/24

172.71.226.0/24

172.68.167.0/24

104.29.93.0/24

195.66.29.0/24

104.24.80.0/20

104.16.0.0/20

172.71.11.0/24

172.70.229.0/24

104.29.183.0/24

8.27.67.0/24

162.158.110.0/24

209.55.246.0/23

185.7.240.0/24

104.18.52.0/24

172.68.219.0/24

104.17.48.0/20

172.71.152.0/24

162.158.235.0/24

91.206.71.0/24

104.18.62.0/24

172.69.135.0/24

162.158.155.0/24

162.159.192.0/24

172.68.0.0/24

104.28.167.0/24

104.28.190.0/24

104.28.202.0/24

162.158.122.0/24

172.70.252.0/24

172.64.53.0/24

172.69.69.0/24

104.239.29.0/24

185.18.184.0/24

104.24.208.0/20

148.227.167.0/24

104.18.39.0/24

104.22.180.0/24

104.28.176.0/24

172.71.129.0/24

204.195.192.0/18

143.14.251.0/24

104.22.117.0/24

108.162.242.0/24

162.158.23.0/24

104.29.145.0/24

104.16.64.0/20

162.159.99.0/24

162.159.64.0/20

104.16.176.0/20

141.101.73.0/24

172.71.221.0/24

172.70.172.0/24

172.70.149.0/24

172.69.192.0/24

172.69.169.0/24

172.71.101.0/24

172.68.155.0/24

172.65.224.0/20

104.28.30.0/24

172.69.249.0/24

104.22.173.0/24

172.68.35.0/24

172.64.99.0/24

104.23.187.0/24

104.23.222.0/24

162.158.13.0/24

104.24.128.0/20

104.21.0.0/19

172.70.94.0/24

172.71.189.0/24

141.101.120.0/22

162.158.31.0/24

162.159.81.0/24

162.159.58.0/24

162.158.227.0/24

172.70.88.0/24

104.22.131.0/24

172.69.82.0/24

162.158.244.0/24

162.158.160.0/24

104.23.178.0/24

172.68.147.0/24

172.68.101.0/24

104.28.203.0/24

141.101.99.0/24

104.22.155.0/24

104.22.170.0/24

104.28.12.0/24

162.158.14.0/24

172.65.112.0/20

104.28.191.0/24

172.64.194.0/24

172.71.6.0/24

104.18.37.0/24

103.54.128.0/24

IPv6 Prefixes (256)

2400:cb00:a0e5::/48

2400:cb00:507::/48

2401:c2e0:8000::/44

2606:4700:8ca3::/48

2400:cb00:352::/48

2400:cb00:78::/48

2606:4700:9768::/46

2400:cb00:216::/48

2400:cb00:228::/48

2606:4700:d0::/48

2400:cb00:1023::/48

2400:cb00:dff3::/48

2400:cb00:d123::/48

2400:cb00:1041::/48

2606:4700:3000::/48

2400:cb00:e004::/48

2606:4700:3011::/48

2400:cb00:764::/48

2400:cb00:1264::/48

2400:cb00:a103::/48

2400:cb00:d9d1::/48

2a06:98c1:3102::/48

2606:4700:107::/48

2606:4700:90d0::/46

2606:4700:90c7::/48

2606:54c2:14::/48

2400:cb00:103::/48

2606:4700:3005::/48

2606:4700:403d::/48

2400:cb00:1008::/48

2400:cb00:ef93::/48

2a06:98c0:1c98::/48

2400:cb00:c3c9::/48

2400:cb00:593::/48

2400:cb00:cd13::/48

2400:cb00:bd69::/48

2400:cb00:c094::/48

2400:cb00:c383::/48

2400:cb00:532::/48

2400:cb00:ccf5::/48

2606:4700:91b0::/44

2606:4700:83b4::/48

2606:4700:4022::/48

2400:cb00:ef91::/48

2a06:98c0:1c25::/48

2400:cb00:e088::/48

2400:cb00:520::/48

2400:cb00:dff1::/48

2400:cb00:dd05::/48

2400:cb00:1031::/48

2400:cb00:c6b6::/48

2400:cb00:c3d5::/48

2400:cb00:c381::/48

2400:cb00:bfb7::/48

2400:cb00:b9a3::/48

2400:cb00:a222::/48

2400:cb00:a0e3::/48

2400:cb00:1043::/48

2400:cb00:db62::/48

2400:cb00:1006::/48

2a06:98c1:3114::/48

2400:cb00:ed11::/48

2a09:bac0:601::/48

2400:cb00:ecf3::/48

2a14:a087:1::/48

2400:cb00:633::/48

2a06:98c0:1c37::/48

2606:4700:304e::/48

2400:cb00:999::/48

2400:cb00:de43::/48

2400:cb00:3006::/48

2400:cb00:c8a1::/48

2400:cb00:edb1::/48

2400:cb00:ed34::/48

2400:cb00:c3c4::/48

2400:cb00:e8c2::/48

2400:cb00:ed36::/48

2400:cb00:e014::/48

2a06:98c1:3112::/48

2400:cb00:da26::/48

2400:cb00:598::/48

2400:cb00:e8c4::/48

2400:cb00:da36::/48

2400:cb00:c6a5::/48

2400:cb00:89::/48

2400:cb00:d8a5::/48

2400:cb00:c1a3::/48

2400:cb00:766::/48

2400:cb00:abd1::/48

2400:cb00:df91::/48

2400:cb00:c553::/48

2400:cb00:509::/48

2400:cb00:1292::/48

2400:cb00:497::/48

2400:cb00:bd06::/48

2a06:98c0:1c35::/48

2400:cb00:a542::/48

2400:cb00:a113::/48

2400:cb00:a0f5::/48

2400:cb00:1166::/48

2a09:bac3::/32

2400:cb00:dcd6::/48

2400:cb00:15::/48

2400:cb00:ef85::/48

2400:cb00:485::/48

2606:4700:105::/48

2400:cb00:e112::/48

2400:cb00:e077::/48

2a09:bac0:404::/48

2400:cb00:936::/48

2606:54c1:10::/48

2606:4700:3025::/48

2606:4700:839c::/46

2606:4700:cf0::/48

2400:cb00:195::/48

2a06:98c0:1c5f::/48

2400:cb00:f012::/48

2400:cb00:da40::/48

2400:cb00:d9d4::/48

2400:cb00:ce52::/48

2400:cb00:beb2::/48

2400:cb00:b9c3::/48

2400:cb00:b821::/48

2400:cb00:a804::/48

2606:4700:56::/48

2400:cb00:940::/48

2400:cb00:636::/48

2400:cb00:db65::/48

2606:4700:3008::/48

2400:cb00:e9f1::/48

2606:4700:4025::/48

2606:4700:90d8::/46

2400:cb00:d001::/48

2400:cb00:e0e5::/48

2400:cb00:546::/48

2400:cb00:e068::/48

2400:cb00:de06::/48

2400:cb00:775::/48

2400:cb00:dd94::/48

2400:cb00:cdf4::/48

2400:cb00:c923::/48

2400:cb00:c642::/48

2400:cb00:c0d4::/48

2400:cb00:bd83::/48

2400:cb00:b625::/48

2400:cb00:b9b4::/48

2400:cb00:a471::/48

2400:cb00:f0c4::/48

2400:cb00:1255::/48

2400:cb00:1130::/48

2606:4700:3022::/48

2400:cb00:ddd3::/48

2400:cb00:dd56::/48

2a09:bac0:254::/48

2400:cb00:1007::/48

2400:cb00:cdb6::/48

2400:cb00:c592::/48

2400:cb00:a223::/48

2400:cb00:a492::/48

2400:cb00:b9a4::/48

2400:cb00:c382::/48

2400:cb00:c3d6::/48

2400:cb00:d961::/48

2400:cb00:d9b5::/48

2400:cb00:dea4::/48

2400:cb00:ab51::/48

2400:cb00:e1a1::/48

2400:cb00:e955::/48

2400:cb00:c163::/48

2400:cb00:b8d3::/48

2400:cb00:100::/48

2400:cb00:ab91::/48

2400:cb00:a232::/48

2400:cb00:ac71::/48

2400:cb00:c524::/48

2400:cb00:c793::/48

2400:cb00:da30::/48

2400:cb00:dd11::/48

2400:cb00:e964::/48

2400:cb00:a662::/48

2400:cb00:a233::/48

2400:cb00:a0f4::/48

2400:cb00:a433::/48

2400:cb00:dd23::/48

2400:cb00:a152::/48

2400:cb00:dda0::/48

2400:cb00:df92::/48

2400:cb00:e9f3::/48

2400:cb00:1040::/48

2400:cb00:f014::/48

2400:cb00:1017::/48

2400:cb00:f0da::/48

2400:cb00:1024::/48

2606:4700:2ff9::/48

2400:cb00:21::/48

2a06:98c0:1c4f::/48

2a06:98c0:1c74::/48

2606:4700:111::/48

2400:cb00:b823::/48

2606:4700:304f::/48

2a06:98c0:1c89::/48

2400:cb00:bd12::/48

2606:4700:8ca4::/48

2400:cb00:69::/48

2606:4700:9c64::/46

2400:cb00:bfd5::/48

2400:cb00:197::/48

2400:cb00:336::/48

2400:cb00:c2d2::/48

2606:4700:9648::/46

2400:cb00:232::/48

2606:4700:130::/44

2a06:98c0:1c0a::/48

2606:4700:8d90::/44

2a06:98c1:50::/45

2606:4700:3012::/48

2400:cb00:a806::/48

2a06:98c0:1c41::/48

2a06:98c0:1c06::/48

2a09:bac5::/32

2400:cb00:478::/48

2400:cb00:650::/48

2400:cb00:eff6::/48

2400:cb00:ed33::/48

2400:cb00:e8c1::/48

2400:cb00:d971::/48

2400:cb00:ce43::/48

2606:4700:8d70::/46

2400:cb00:cff2::/48

2400:cb00:931::/48

2400:cb00:d003::/48

2400:cb00:da19::/48

2400:cb00:cb62::/48

2400:cb00:c1a0::/48

2400:cb00:da42::/48

2606:4700:90c8::/46

2606:4700:311d::/48

2606:4700:3119::/48

2400:cb00:300::/48

2400:cb00:346::/48

2400:cb00:919::/48

2400:cb00:185::/48

2400:cb00:f0d9::/48

2400:cb00:e9b1::/48

2400:cb00:466::/48

2400:cb00:626::/48

2400:cb00:907::/48

2400:cb00:930::/48

2400:cb00:e103::/48

2400:cb00:38::/48

2400:cb00:982::/48

2400:cb00:c455::/48

2400:cb00:c0a3::/48

2400:cb00:bf12::/48

2400:cb00:713::/48

2400:cb00:bc31::/48

BGP Peers (200)

AS1103SURF B.V.

AS1140Stichting Internet Domeinregistratie Nederland

AS12307Sandro Bolliger trading as Bolliger Network Solutions

AS1280Internet Systems Consortium, Inc.

AS12859BIT BV

AS12969Ljósleiðarinn ehf (Sýn)

AS13004Serbian Open Exchange DOO

AS13237euNetworks GmbH

AS132847Network Solutions Group Pty Ltd

AS133210EN Technologies Pte Ltd

AS133339CXC Route Servers

AS134823Sky Digital Co., Ltd.

AS1002Bytefilter LLC

AS1003andrewnet

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.