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

AS153706

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS153706

NameSTACKNETWORK-AS-AP

OrganisationStack Network Sdn. Bhd.

Country

RIRAPNIC

Allocated18.03.2025

Abuse contactJERRY@STACKPORK.COM

Network Overview

IPv4 Prefixes30

IPv6 Prefixes0

Upstreams (Transit)4

Downstreams (Customers)1

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS17476CloudRadium (HK) Limited AS21859Zenlayer Inc AS23764China Telecom Global AS26042FiberState, LLC

AS153706STACKNETWORK-AS-AP

Downstreams (Customers)

AS214432Zhilian Technology CO., LTD.

Upstreams (Transit) (4)

AS17476CloudRadium (HK) Limited

AS21859Zenlayer Inc

AS23764China Telecom Global

AS26042FiberState, LLC

Downstreams (Customers) (1)

AS214432Zhilian Technology CO., LTD.

IPv4 Prefixes (30)

172.252.224.0/24

156.254.20.0/24

66.212.58.0/23

156.254.21.0/24

66.212.59.0/24

103.228.64.0/23

172.252.173.0/24

154.89.194.0/24

43.229.153.0/24

104.253.124.0/23

172.252.172.0/24

103.133.137.0/24

154.193.211.0/24

104.253.125.0/24

104.253.124.0/24

66.212.57.0/24

103.133.136.0/23

103.48.169.0/24

156.254.20.0/23

163.223.146.0/23

43.229.152.0/23

103.133.136.0/24

163.223.146.0/24

103.228.64.0/24

172.252.224.0/23

163.223.147.0/24

172.252.225.0/24

66.212.58.0/24

66.212.56.0/24

172.252.172.0/23

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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.