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

AS137443

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS137443

NameCHANGLIAN-AS-AP

OrganisationChangLian Network Technology Co., Limited

Country

RIRAPNIC

Allocated20.02.2024

Abuse contactanch-resource@51idc.com

Network Overview

IPv4 Prefixes25

IPv6 Prefixes1

Upstreams (Transit)6

Downstreams (Customers)5

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS136897Enjoyvc Cloud Group Limited.AS139076EnjoyVC Japan Corporation AS150706Hong Kong Zhengxing Technology Co., Ltd.AS21859Zenlayer Inc AS23764China Telecom Global AS393437KLAYER LLC

AS137443CHANGLIAN-AS-AP

Downstreams (Customers)

AS132585SkyExchange Internet Access AS136744Dream Power Technology Limited AS149014bo jing AS215731Novus Labs Limited AS25862ISNX LLC

Upstreams (Transit) (6)

AS136897Enjoyvc Cloud Group Limited.

AS139076EnjoyVC Japan Corporation

AS150706Hong Kong Zhengxing Technology Co., Ltd.

AS21859Zenlayer Inc

AS23764China Telecom Global

AS393437KLAYER LLC

Downstreams (Customers) (5)

AS132585SkyExchange Internet Access

AS136744Dream Power Technology Limited

AS149014bo jing

AS215731Novus Labs Limited

AS25862ISNX LLC

IPv4 Prefixes (25)

45.192.162.0/24

154.209.2.0/24

45.192.188.0/24

103.80.30.0/24

103.80.28.0/24

103.50.255.0/24

45.192.177.0/24

45.192.183.0/24

116.89.243.0/24

43.231.185.0/24

45.192.173.0/24

154.91.32.0/24

103.117.72.0/24

45.192.176.0/24

103.50.254.0/24

154.91.33.0/24

45.192.184.0/24

116.89.240.0/24

116.89.241.0/24

156.236.117.0/24

116.89.242.0/24

103.80.31.0/24

154.91.34.0/24

103.80.29.0/24

45.192.174.0/24

IPv6 Prefixes (1)

2404:de80:400::/39

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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.