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

AS18150

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS18150

NameSNI-JP

Country

RIRAPNIC

Abuse contacthostmaster@nic.ad.jp

Network Overview

IPv4 Prefixes7

IPv6 Prefixes0

Upstreams (Transit)9

Downstreams (Customers)0

BGP Peers6

AS Path (BGP neighbours)

Upstreams (Transit)

AS10000Nagasaki Cable Media Inc.AS23815Japan Internet Xing Co., Ltd.AS2519ARTERIA Networks Corporation AS4713NTT Communications Corporation (OCN)AS6939Hurricane Electric LLC AS7679QTnet,Inc.+3

AS18150SNI-JP

Downstreams (Customers)

none

Upstreams (Transit) (9)

AS10000Nagasaki Cable Media Inc.

AS23815Japan Internet Xing Co., Ltd.

AS2519ARTERIA Networks Corporation

AS4713NTT Communications Corporation (OCN)

AS6939Hurricane Electric LLC

AS7679QTnet,Inc.

AS8966Etisalat (E&)

AS9002RETN Limited

AS9370SAKURA Internet Inc.

IPv4 Prefixes (7)

61.7.64.0/19

61.7.0.0/18

61.7.0.0/17

61.7.0.0/19

61.7.64.0/18

61.7.32.0/19

61.7.104.0/22

BGP Peers (6)

AS17639Converge ICT Solutions Inc.

AS24482SG.GS

AS25152RIPE NCC - K-root

AS35280F5 Networks SARL

AS45489Sri Lanka Telecom PLC

AS49544i3D.net B.V

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.