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Autonomous System

AS17408 · AboveNet Communications Taiwan

Overview

AS17408 is announced on the Internet: RIPE RIS route collectors currently see 106 IPv4 prefixes and 4 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 52,736 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 18 upstream neighbours (transit providers or peers) and 97 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Flag Telecom UK Limited (AS15412), and Data Communication Business Group (AS3462). AS17408 was assigned by APNIC, and its registration country is Taiwan.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:11 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 202.133.224.1

The trace goes to 202.133.224.1, the first address of 202.133.224.0/19. 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 (106 prefixes)

PrefixAddresses
43.243.252.0/221,024
43.243.252.0/24256
43.243.253.0/24256
43.243.255.0/24256
103.3.28.0/24256
103.3.29.0/24256
103.3.30.0/24256
103.3.31.0/24256
103.5.116.0/221,024
103.37.236.0/24256
103.37.237.0/24256
103.37.238.0/24256
103.37.239.0/24256
103.123.140.0/221,024
103.123.142.0/24256
103.130.0.0/221,024
103.138.106.0/24256
103.246.176.0/24256
113.21.90.0/24256
113.21.95.0/24256
119.31.176.0/212,048
119.31.184.0/221,024
119.31.188.0/23512
119.31.188.0/24256
119.31.190.0/24256
119.31.191.0/24256
150.116.112.0/221,024
150.116.119.0/24256
202.3.160.0/204,096
202.3.160.0/212,048
202.3.168.0/24256
202.3.170.0/24256
202.3.174.0/23512
202.3.174.0/24256
202.3.176.0/23512
202.3.176.0/24256
202.3.177.0/24256
202.3.178.0/23512
202.3.178.0/24256
202.3.180.0/221,024
202.3.186.0/23512
202.3.188.0/221,024
202.5.240.0/204,096
202.5.240.0/221,024
202.5.241.0/24256
202.5.242.0/23512
202.5.242.0/24256
202.5.243.0/24256
202.5.244.0/221,024
202.5.250.0/23512
202.5.252.0/221,024
202.5.252.0/23512
202.5.254.0/23512
202.55.224.0/212,048
202.55.230.0/24256
202.55.232.0/221,024
202.55.236.0/23512
202.55.238.0/23512
202.55.240.0/23512
202.55.242.0/23512
202.55.244.0/221,024
202.55.248.0/221,024
202.55.248.0/23512
202.55.251.0/24256
202.55.252.0/24256
202.55.254.0/23512
202.133.224.0/198,192
202.133.224.0/24256
202.133.231.0/24256
202.133.240.0/24256
202.133.252.0/23512
202.153.160.0/23512
202.153.162.0/23512
202.153.164.0/24256
202.153.165.0/24256
202.153.167.0/24256
202.153.168.0/23512
202.153.170.0/24256
202.153.172.0/24256
202.153.173.0/24256
202.153.174.0/23512
202.153.178.0/24256
202.153.179.0/24256
202.153.180.0/24256
202.153.182.0/23512
202.153.184.0/221,024
202.153.184.0/24256
202.153.185.0/24256
202.153.186.0/24256
202.153.187.0/24256
202.153.188.0/23512
202.153.188.0/24256
202.153.189.0/24256
202.153.191.0/24256
202.153.193.0/24256
202.153.194.0/23512
202.153.196.0/221,024
202.153.202.0/23512
202.153.204.0/221,024
203.119.3.0/24256

Showing the first 100 of 106, in address order. Complete list on RIPEstat

IPv6 prefixes (4 prefixes)

Prefix
2405:7e00:1::/48
2405:7e00:17::/48
2405:7e00:1000::/36
2405:7e00:4000::/36

Neighbours

Upstreams (transit or peers) (18)

ASNetworkVisibility
AS6939Hurricane Electric LLC22,607
AS15412Flag Telecom UK Limited5,220
AS3462Data Communication Business Group864
AS9505Taiwan Internet Gateway671
AS12389PJSC Rostelecom299
AS38008Aperture Science Limited178
AS24482SG.GS142
AS10133Chief Telecom Inc.65
AS58453China Mobile International Limited53
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC51
AS9002RETN Limited18
AS18041-9
AS7481Data Communication Business Group8
AS7713PT Telekomunikasi Indonesia8
AS7539-4
AS137409GSL Networks Pty LTD3
AS63199-2
AS216458HardCore Hardcore Communication Co., Limited2

Downstreams (customers) (97)

ASNetworkVisibility
AS139327UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED2,451
AS139750IDCServices.net Inc2,055
AS131584Taiwan Intelligent Fiber Optic Network Co.,Ltd.1,022
AS133847Anpple Tech Enterprise827
AS38325WTP770
AS18419DaDa Broadband LTD.745
AS18186Nebula Global LLC733
AS152623Woquan Technology Co., Ltd.731
AS395596Infinirc LLC700
AS131645KLICKKLACK CO., LTD.612
AS63199-597
AS131607-492
AS131600-467
AS133182-464
AS57976Blizzard Entertainment, Inc455
AS32787Akamai Technologies, Inc.453
AS64078-447
AS45580-413
AS55256-411
AS138915-385
AS204844-382
AS131596-374
AS131627-355
AS45593-347
AS131605-328
AS25773-324
AS9922-319
AS38047-314
AS11179-306
AS18046-303

The 30 most visible of 97.

62 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.