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Autonomous System

AS136744 ยท DREAM POWER TECHNOLOGY LIMITED

Overview

AS136744 is announced on the Internet: RIPE RIS route collectors currently see 54 IPv4 prefixes and no IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 12,544 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 15 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are Zenlayer Inc (AS21859), Cloudflare, Inc. (AS13335), and Cogent Communications, LLC (AS174). AS136744 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 1:21 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 43.230.12.1, the first address of 43.230.12.0/22. 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 (54 prefixes)

PrefixAddresses
38.92.36.0/23512
38.92.36.0/24256
38.92.37.0/24256
38.96.253.0/24256
38.97.41.0/24256
38.97.42.0/24256
38.146.217.0/24256
43.230.12.0/221,024
43.230.12.0/24256
43.230.13.0/24256
43.230.14.0/24256
43.230.15.0/24256
45.74.49.0/24256
45.89.31.0/24256
82.22.8.0/24256
84.32.66.0/24256
85.208.72.0/24256
89.106.25.0/24256
91.227.137.0/24256
102.215.227.0/24256
103.35.56.0/24256
103.35.57.0/24256
103.35.58.0/24256
103.35.59.0/24256
103.140.156.0/23512
103.140.156.0/24256
103.140.157.0/24256
103.247.30.0/24256
103.247.31.0/24256
103.248.252.0/221,024
103.248.252.0/24256
103.248.253.0/24256
103.248.254.0/24256
103.248.255.0/24256
148.135.206.0/24256
150.116.13.0/24256
154.16.11.0/24256
154.206.14.0/24256
154.206.15.0/24256
155.117.32.0/24256
155.117.52.0/24256
155.117.54.0/24256
155.117.61.0/24256
156.226.3.0/24256
156.235.28.0/23512
156.235.28.0/24256
156.235.29.0/24256
181.214.237.0/24256
181.215.210.0/24256
185.104.12.0/24256
192.101.64.0/24256
193.58.106.0/24256
212.30.61.0/24256
213.209.151.0/24256

IPv6 prefixes (none)

None currently seen.

Neighbours

Upstreams (transit or peers) (15)

ASNetworkVisibility
AS21859Zenlayer Inc1,637
AS13335Cloudflare, Inc.275
AS174Cogent Communications, LLC250
AS150706Hong Kong Zhengxing Technology Co., Ltd.245
AS6939Hurricane Electric LLC37
AS17408AboveNet Communications Taiwan32
AS137443ChangLian Network Technology Co., Limited12
AS4635Hong Kong Internet Exchange--Route Server 17
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC6
AS33891Core-Backbone GmbH6
AS8359MTS PJSC3
AS9002RETN Limited2
AS38008Aperture Science Limited2
AS15802-1
AS20326-1

Downstreams (customers) (0)

None seen.

12 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

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.