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Autonomous System

AS18046 · DongFong Technology Co. Ltd.

Overview

AS18046 is announced on the Internet: RIPE RIS route collectors currently see 111 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 160,256 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 24 upstream neighbours (transit providers or peers) and 16 downstream neighbours (customers or networks it carries). Its most visible upstreams are RETN Limited (AS9002), Telstra Global (AS4637), and CTGNet (AS23764). AS18046 was assigned by APNIC, and its registration country is Taiwan.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:18 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 87.80.0.1

The trace goes to 87.80.0.1, the first address of 87.80.0.0/16. 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 (111 prefixes)

PrefixAddresses
43.248.16.0/221,024
43.248.16.0/23512
43.248.18.0/23512
61.65.208.0/204,096
61.65.232.0/212,048
61.65.236.0/24256
61.65.237.0/24256
61.65.238.0/24256
61.65.239.0/24256
61.67.32.0/204,096
78.105.0.0/1816,384
78.105.64.0/198,192
82.41.128.0/204,096
87.80.0.0/1665,536
101.0.224.0/221,024
101.0.228.0/221,024
101.0.228.0/23512
101.3.192.0/204,096
101.3.208.0/221,024
103.126.88.0/221,024
103.126.88.0/23512
103.126.88.0/24256
103.126.89.0/24256
103.126.90.0/24256
103.126.181.0/24256
103.126.182.0/23512
103.126.252.0/221,024
103.126.252.0/23512
103.126.254.0/23512
103.176.50.0/23512
103.176.50.0/24256
103.176.51.0/24256
103.197.172.0/221,024
103.233.68.0/221,024
103.233.68.0/23512
103.233.70.0/23512
103.234.224.0/221,024
103.234.225.0/24256
103.234.226.0/24256
103.234.227.0/24256
116.50.32.0/204,096
116.50.32.0/212,048
116.50.32.0/24256
116.50.33.0/24256
116.50.34.0/24256
116.50.35.0/24256
116.50.36.0/24256
116.50.37.0/24256
116.50.38.0/23512
116.50.39.0/24256
116.50.40.0/212,048
116.50.41.0/24256
116.50.43.0/24256
116.50.46.0/23512
119.15.192.0/221,024
119.15.192.0/23512
119.15.194.0/23512
119.15.208.0/212,048
119.15.208.0/23512
119.15.210.0/23512
119.15.210.0/24256
119.15.224.0/198,192
119.15.224.0/212,048
119.15.232.0/212,048
119.15.240.0/212,048
119.15.248.0/212,048
121.50.176.0/204,096
121.50.176.0/212,048
121.50.176.0/221,024
121.50.176.0/24256
121.50.177.0/24256
121.50.179.0/24256
121.50.181.0/24256
121.50.183.0/24256
121.50.184.0/212,048
121.50.184.0/221,024
121.50.190.0/24256
121.50.191.0/24256
122.200.152.0/24256
122.200.153.0/24256
122.200.154.0/23512
122.200.154.0/24256
122.200.155.0/24256
122.200.156.0/221,024
122.200.156.0/24256
122.200.158.0/24256
122.200.159.0/24256
150.107.56.0/221,024
150.116.16.0/204,096
150.116.16.0/23512
150.116.18.0/23512
150.116.20.0/23512
150.116.22.0/23512
150.116.24.0/23512
150.116.26.0/23512
150.116.28.0/23512
150.116.30.0/23512
150.129.36.0/221,024
150.129.36.0/23512
150.129.37.0/24256

Showing the first 100 of 111, in address order. Complete list on RIPEstat

IPv6 prefixes (2 prefixes)

Prefix
2401:1780::/32
2401:1780:1316::/48

Neighbours

Upstreams (transit or peers) (24)

ASNetworkVisibility
AS9002RETN Limited2,166
AS4637Telstra Global1,648
AS23764CTGNet725
AS6939Hurricane Electric LLC500
AS174Cogent Communications, LLC333
AS17408AboveNet Communications Taiwan303
AS4780Digital United Inc.272
AS21859Zenlayer Inc271
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC28
AS24482SG.GS20
AS35280F5 Networks SARL20
AS137409GSL Networks Pty LTD15
AS10133Chief Telecom Inc.11
AS8529Zain Omantel International FZ-LLC9
AS9583Sify Limited9
AS132132MyRepublic Ltd.7
AS9498BHARTI Airtel Ltd.6
AS38008-6
AS9505Taiwan Internet Gateway2
AS3462Data Communication Business Group1
AS7713PT Telekomunikasi Indonesia1
AS20326TeraSwitch Networks Inc.1
AS41095IPTP LTD1
AS138997Eons Data Communications Limited1

Downstreams (customers) (16)

ASNetworkVisibility
AS984OCTOPUS WEB SOLUTION INC1,071
AS38851TNET Communication Inc. 10F., No.78, Sec. 2, Chongxin Rd., Sanchong Dist.,New Taipei City, Taiwan (R.O.C Taiwan 241)398
AS131655NAN YA PLASTICS CORPORATION347
AS154902SignalPro Technology Co., Ltd.309
AS63899National Taiwan University of Science and Technology267
AS18413Great Taipei Broadband Company Ltd.263
AS63893Chang Chun Petrochemical Co., Ltd.260
AS394557Roku Inc.255
AS24169Chuan Chan Co. Ltd.252
AS136897Enjoyvc Cloud Group Limited.249
AS24172-138
AS133948-121
AS131584Taiwan Intelligent Fiber Optic Network Co.,Ltd.114
AS174Cogent Communications, LLC4
AS23764CTGNet2
AS9416-1

10 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.