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Autonomous System

AS9457 · DREAMLINE CO.

Overview

AS9457 is announced on the Internet: RIPE RIS route collectors currently see 112 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 899,840 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 11 upstream neighbours (transit providers or peers) and 39 downstream neighbours (customers or networks it carries). Its most visible upstreams are Cogent Communications, LLC (AS174), NTT America, Inc. (AS2914), and Telstra Global (AS4637). AS9457 was assigned by APNIC, and its registration country is South Korea.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:10 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 61.103.0.1, the first address of 61.103.0.0/16. 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 (112 prefixes)

PrefixAddresses
5.199.56.0/24256
45.14.234.0/24256
45.14.235.0/24256
49.254.80.0/24256
49.254.105.0/24256
59.150.0.0/212,048
59.150.12.0/24256
59.150.14.0/24256
59.150.16.0/23512
59.150.22.0/23512
59.150.42.0/24256
59.150.45.0/24256
59.150.46.0/23512
59.150.48.0/221,024
59.150.102.0/23512
59.150.104.0/23512
59.150.106.0/24256
59.150.123.0/24256
59.150.124.0/24256
59.150.128.0/221,024
59.150.132.0/23512
59.150.134.0/24256
59.150.137.0/24256
59.150.139.0/24256
59.150.140.0/24256
59.150.142.0/23512
59.150.144.0/23512
59.150.150.0/24256
59.150.152.0/221,024
59.150.156.0/24256
59.150.165.0/24256
59.150.168.0/23512
59.150.170.0/24256
59.150.172.0/24256
59.150.194.0/24256
59.150.196.0/23512
59.150.208.0/204,096
59.150.224.0/198,192
61.96.0.0/1732,768
61.96.27.0/24256
61.96.28.0/24256
61.96.29.0/24256
61.96.128.0/1732,768
61.103.0.0/1665,536
61.107.0.0/1665,536
69.33.234.0/24256
85.189.10.0/24256
94.231.232.0/221,024
103.12.252.0/221,024
103.237.120.0/24256
103.237.121.0/24256
103.237.122.0/24256
103.237.123.0/24256
109.66.141.0/24256
109.121.60.0/24256
110.4.91.0/24256
110.34.37.0/24256
112.73.0.0/24256
116.93.181.0/24256
116.93.182.0/24256
116.93.183.0/24256
116.93.184.0/24256
116.93.185.0/24256
116.93.186.0/24256
116.93.187.0/24256
116.93.188.0/24256
116.93.189.0/24256
116.93.190.0/24256
121.53.0.0/1665,536
122.99.237.0/24256
125.57.0.0/1665,536
147.79.14.0/24256
151.246.129.0/24256
151.247.79.0/24256
151.247.111.0/24256
151.247.180.0/24256
151.247.237.0/24256
151.247.251.0/24256
159.253.0.0/24256
163.5.251.0/24256
163.8.217.0/24256
185.199.212.0/23512
185.255.57.0/24256
199.30.4.0/23512
210.181.0.0/198,192
210.181.0.0/204,096
210.181.0.0/221,024
210.181.4.0/221,024
210.181.8.0/221,024
210.181.12.0/221,024
210.181.16.0/204,096
210.181.26.0/24256
211.39.224.0/198,192
211.45.64.0/198,192
211.56.128.0/1816,384
211.56.186.0/24256
211.61.128.0/1732,768
211.111.0.0/1732,768
211.175.0.0/1665,536
211.175.187.0/24256

Showing the first 100 of 112, in address order. Complete list on RIPEstat

IPv6 prefixes (1 prefix)

Prefix
2001:c48::/32

Neighbours

Upstreams (transit or peers) (11)

ASNetworkVisibility
AS174Cogent Communications, LLC5,797
AS2914NTT America, Inc.3,574
AS4637Telstra Global1,314
AS3786LG DACOM Corporation238
AS6939Hurricane Electric LLC234
AS9957KINX53
AS9318SK Broadband Co Ltd32
AS9002RETN Limited7
AS137409GSL Networks Pty LTD6
AS9498BHARTI Airtel Ltd.5
AS20326TeraSwitch Networks Inc.1

Downstreams (customers) (39)

ASNetworkVisibility
AS38661abcle1,406
AS17878DREAMMARK11,047
AS21859Zenlayer Inc803
AS139341ACE475
AS38690HyosungITX356
AS10054CMB Kwangju Broadcasting346
AS45374CCS345
AS38684CMB Daejeon Broadcasting Co,.Ltd316
AS38676flexnetworks297
AS38101Yulchon LLC295
AS23908-293
AS38133-293
AS9757-277
AS17838-264
AS18168-262
AS17583-260
AS38680-258
AS38387-257
AS38673-257
AS199524G-Core Labs S.A.257
AS9640-256
AS17608-255
AS16477-254
AS55623-254
AS9771-253
AS17867-253
AS9781-249
AS131839-194
AS17876-73
AS36819-69

The 30 most visible of 39.

6 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.