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

AS138542

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS138542

NameZTINFO-AS-HK

OrganisationZT Information Network Co., Limited

Country

RIRAPNIC

Allocated22.10.2025

Abuse contactsupport@hkbeecloudsystem.com

Network Overview

IPv4 Prefixes9

IPv6 Prefixes0

Upstreams (Transit)3

Downstreams (Customers)1

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS137983TIANFENG (HONG KONG) COMMUNICATIONS LIMITED AS140570Hong Kong Beecloud System Technology Services Limited AS9002RETN Limited

AS138542ZTINFO-AS-HK

Downstreams (Customers)

AS137551REDLINK TELECOM Co., Ltd

Upstreams (Transit) (3)

AS137983TIANFENG (HONG KONG) COMMUNICATIONS LIMITED

AS140570Hong Kong Beecloud System Technology Services Limited

AS9002RETN Limited

Downstreams (Customers) (1)

AS137551REDLINK TELECOM Co., Ltd

IPv4 Prefixes (9)

79.109.8.0/21

79.109.32.0/19

79.109.2.0/23

79.109.240.0/21

79.109.0.0/24

79.109.128.0/18

79.109.64.0/18

79.109.16.0/20

79.109.192.0/19

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.