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Autonomous System

AS18106 · Viewqwest Pte Ltd

Overview

AS18106 is announced on the Internet: RIPE RIS route collectors currently see 25 IPv4 prefixes and 4 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 52,992 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 82 upstream neighbours (transit providers or peers) and 21 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), NTT America, Inc. (AS2914), and Cogent Communications, LLC (AS174). AS18106 was assigned by APNIC, and its registration country is Singapore.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:01 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 132.147.64.1, the first address of 132.147.64.0/18. 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
43.230.96.0/23512
43.230.98.0/23512
45.121.84.0/221,024
103.4.196.0/221,024
103.7.68.0/24256
103.7.69.0/24256
103.7.70.0/24256
103.7.71.0/24256
103.26.220.0/221,024
103.26.223.0/24256
103.60.60.0/221,024
103.208.176.0/221,024
103.247.108.0/221,024
132.147.64.0/1816,384
137.59.184.0/221,024
162.246.200.0/221,024
185.5.132.0/23512
195.133.128.0/204,096
202.55.64.0/198,192
202.73.32.0/198,192
202.83.96.0/204,096
206.166.202.0/23512
223.27.137.0/24256
223.27.138.0/24256
223.27.140.0/24256

IPv6 prefixes (4 prefixes)

Prefix
2001:d98::/32
2402:7480::/32
2404:4280::/32
2602:ff4b::/36

Neighbours

Upstreams (transit or peers) (82)

ASNetworkVisibility
AS6939Hurricane Electric LLC57,463
AS2914NTT America, Inc.28,800
AS174Cogent Communications, LLC9,235
AS7195EDGEUNO S.A.S4,533
AS37468Angola Cables3,008
AS4657StarHub Ltd2,855
AS33891Core-Backbone GmbH2,083
AS14840BR.Digital Telecom1,376
AS4635Hong Kong Internet Exchange--Route Server 11,343
AS5405Inter.link GmbH1,093
AS9002RETN Limited996
AS4230CLARO S.A.904
AS20485Joint Stock Company TransTeleCom674
AS12552GlobalConnect AB620
AS23947-424
AS17557Pakistan Telecommunication Company Limited415
AS9299Philippine Long Distance Telephone Company413
AS37100SEACOM Limited378
AS6910-363
AS35280F5 Networks SARL354
AS20764CJSC RASCOM350
AS21320GEANT Vereniging333
AS2497Internet Initiative Japan Inc.321
AS138128PT Solnet Indonesia304
AS9583Sify Limited292
AS8455-223
AS24961WIIT AG215
AS4780Digital United Inc.199
AS6663Euroweb Romania S.R.L.186
AS9304HGC Global Communications Limited182

The 30 most visible of 82.

Downstreams (customers) (21)

ASNetworkVisibility
AS138128PT Solnet Indonesia2,195
AS133421INNET SOLUTIONS SDN BHD1,191
AS134809ViewQwest Sdn. Bhd.738
AS23767A-STAR463
AS398173Seagate Technology LLC417
AS132277105 Tampines Road # 03-06/07381
AS138419Pico (Singapore) Pte. Ltd.286
AS17653Globecast Asia Pte Ltd284
AS132816SimplerCloud Pte Ltd282
AS202154brevanhoward Brevan Howard Asset Management LLP260
AS24926-255
AS17158-234
AS132576-225
AS395266-221
AS45839Shinjiru Technology Sdn Bhd173
AS215859-132
AS139242-131
AS132242-115
AS9234-113
AS1780-112
AS63199-34

1,757 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.