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

AS10021

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS10021

NameKVH

Country

RIRAPNIC

Network Overview

IPv4 Prefixes45

IPv6 Prefixes4

Upstreams (Transit)1

Downstreams (Customers)13

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS8220COLT

AS10021KVH

Downstreams (Customers)

AS10780Pure Storage, INC.AS131901FIDESSA KK AS131903Nomura Research Institute,Ltd.AS132827GATEWAY INC AS133203SBI BITS Co., Ltd.AS137269Novartis Singapore Pte Ltd+7

Upstreams (Transit) (1)

AS8220COLT

Downstreams (Customers) (13)

AS10780Pure Storage, INC.

AS131901FIDESSA KK

AS131903Nomura Research Institute,Ltd.

AS132827GATEWAY INC

AS133203SBI BITS Co., Ltd.

AS137269Novartis Singapore Pte Ltd

AS139472Catalina Marketing Japan K.K.

AS17088Currenex, Inc.

AS17978SERVCORP AUSTRALIAN HOLDINGS LTD

AS24507FFastFill Australia Pty Limited

AS31747BlackRock Financial Management, Inc.

AS55894Who's Next

AS6619

IPv4 Prefixes (45)

157.2.120.0/22

202.95.216.0/23

103.23.12.0/22

202.7.96.0/23

27.110.63.0/24

202.7.100.0/23

202.7.102.0/23

192.51.55.0/24

202.95.208.0/23

202.95.212.0/22

27.110.28.0/22

203.167.32.0/21

110.50.72.0/22

27.110.56.0/22

110.50.64.0/21

202.7.108.0/22

61.120.204.0/23

202.7.99.0/24

27.110.32.0/20

61.195.72.0/24

27.110.22.0/23

61.120.192.0/21

157.2.40.0/24

61.120.200.0/22

61.120.206.0/23

133.148.0.0/16

27.110.24.0/22

27.110.48.0/21

117.55.208.0/21

202.95.220.0/23

202.95.210.0/23

117.55.216.0/21

103.23.222.0/24

202.7.105.0/24

114.31.88.0/21

202.7.98.0/24

202.95.222.0/23

110.50.76.0/23

203.167.40.0/21

157.2.101.0/24

103.10.39.0/24

103.173.237.0/24

114.31.80.0/21

203.167.48.0/20

202.7.106.0/23

IPv6 Prefixes (4)

2400:1000:8000::/33

2001:df1:6002::/48

2400:1000::/34

2400:1000:4000::/34

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.