Skip to content

Autonomous System

AS18013 ยท ASLINE LIMITED

Overview

AS18013 is announced on the Internet: RIPE RIS route collectors currently see 25 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 7,168 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 11 upstream neighbours (transit providers or peers) and 28 downstream neighbours (customers or networks it carries). Its most visible upstreams are PCCW Global (HK) Ltd. (AS3491), NTT America, Inc. (AS2914), and Hurricane Electric LLC (AS6939). AS18013 was assigned by APNIC, and its registration country is Hong Kong SAR China.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:57 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 45.159.56.1, the first address of 45.159.56.0/22. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (25 prefixes)

PrefixAddresses
45.159.56.0/221,024
45.159.56.0/24256
45.159.57.0/24256
45.159.59.0/24256
74.52.30.0/24256
74.52.31.0/24256
103.100.68.0/221,024
103.100.68.0/24256
103.134.144.0/221,024
103.134.144.0/24256
103.134.145.0/24256
103.134.146.0/24256
103.134.147.0/24256
103.135.144.0/24256
103.135.145.0/24256
103.135.146.0/24256
103.135.147.0/24256
103.185.158.0/24256
103.231.85.0/24256
103.231.86.0/24256
150.242.36.0/221,024
150.242.37.0/24256
151.158.9.0/24256
154.212.135.0/24256
168.76.123.0/24256

IPv6 prefixes (1 prefix)

Prefix
2404:7fc0::/32

Neighbours

Upstreams (transit or peers) (11)

ASNetworkVisibility
AS3491PCCW Global (HK) Ltd.3,590
AS2914NTT America, Inc.3,559
AS6939Hurricane Electric LLC2,120
AS17476CloudRadium (HK) Limited1,130
AS174Cogent Communications, LLC822
AS9002RETN Limited358
AS40065CNSERVERS LLC257
AS10111Zeofast Network135
AS58453China Mobile International Limited110
AS22427GNET INC.65
AS23764CTGNet44

Downstreams (customers) (28)

ASNetworkVisibility
AS976CoreNET Inc.2,012
AS137951ASLINE LIMITED1,131
AS136826PT TITIK TERANG MAKMUR881
AS134428Edge Cloud Globe Co., Limited781
AS136970YISU CLOUD LTD736
AS9294GNET INC.616
AS22160INIsmart Technology Ltd.525
AS393889EightJoy Network LLC475
AS38186Forewin Telecom Group Limited, ISP at HK473
AS40779-03 - VoltNet inc320
AS138415Yancy Limited281
AS402246-277
AS138643-268
AS138648-267
AS154321-264
AS34806-263
AS153611-257
AS9302-255
AS137211-254
AS138609-253
AS10111Zeofast Network60
AS133199-53
AS136038-26
AS33403HEIYO CLOUD CORP.22
AS146961NEXET LIMITED21
AS137983-14
AS399077-12
AS7720Skywolf Technology LLC2

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.