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

AS9917

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS9917

NameSIMPLECLOUD-AS-TW

Country

RIRAPNIC

Allocated01.03.2024

Abuse contactcyy@simplecloud.tw

Network Overview

IPv4 Prefixes1

IPv6 Prefixes0

Upstreams (Transit)3

Downstreams (Customers)0

BGP Peers1

AS Path (BGP neighbours)

Upstreams (Transit)

AS131149Yuan-Jhen Info., Co., Ltd AS137409GSL Networks Pty LTD AS17408AboveNet Communications Taiwan

AS9917SIMPLECLOUD-AS-TW

Downstreams (Customers)

none

Upstreams (Transit) (3)

AS131149Yuan-Jhen Info., Co., Ltd

AS137409GSL Networks Pty LTD

AS17408AboveNet Communications Taiwan

IPv4 Prefixes (1)

157.20.108.0/23

BGP Peers (1)

AS24482SG.GS

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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.