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Autonomous System

AS398704 · STACKS INC

Overview

AS398704 is announced on the Internet: RIPE RIS route collectors currently see 94 IPv4 prefixes and 17 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 21,248 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 36 upstream neighbours (transit providers or peers) and 9 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hong Kong Beecloud System Technology Services Limited (AS140570), Singapore Telecommunications Ltd (AS7473), and RETN Limited (AS9002). AS398704 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 5:54 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 38.46.72.1, the first address of 38.46.72.0/21. 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 (94 prefixes)

PrefixAddresses
38.46.72.0/212,048
38.46.72.0/24256
38.46.73.0/24256
38.46.74.0/24256
38.46.75.0/24256
38.46.76.0/24256
38.46.77.0/24256
38.79.16.0/212,048
38.79.16.0/24256
38.79.17.0/24256
38.79.18.0/24256
38.79.19.0/24256
38.79.20.0/24256
38.79.21.0/24256
38.79.22.0/24256
38.79.23.0/24256
38.92.68.0/221,024
38.92.68.0/24256
38.92.69.0/24256
38.92.70.0/24256
38.92.71.0/24256
38.181.80.0/221,024
38.181.80.0/24256
38.181.81.0/24256
38.181.82.0/24256
38.181.83.0/24256
38.181.84.0/24256
38.181.85.0/24256
38.181.86.0/23512
38.181.86.0/24256
38.181.87.0/24256
45.123.192.0/24256
45.202.216.0/212,048
45.202.216.0/24256
45.202.217.0/24256
45.202.218.0/24256
45.202.219.0/24256
45.202.220.0/24256
45.202.221.0/24256
45.202.222.0/24256
45.202.223.0/24256
103.72.120.0/24256
103.72.122.0/24256
103.167.60.0/23512
103.167.60.0/24256
103.167.61.0/24256
103.167.64.0/23512
103.167.64.0/24256
103.167.65.0/24256
103.173.224.0/24256
103.192.36.0/23512
103.232.214.0/23512
103.232.214.0/24256
103.232.215.0/24256
103.233.179.0/24256
113.203.217.0/24256
113.203.220.0/24256
113.203.255.0/24256
115.167.31.0/24256
154.92.128.0/221,024
154.92.128.0/24256
154.92.129.0/24256
154.92.130.0/24256
154.92.131.0/24256
154.92.132.0/221,024
154.92.132.0/23512
154.92.132.0/24256
154.92.133.0/24256
154.92.134.0/23512
154.92.134.0/24256
154.92.135.0/24256
156.245.192.0/23512
156.245.192.0/24256
156.245.193.0/24256
204.29.228.0/221,024
204.29.228.0/24256
204.29.229.0/24256
204.29.230.0/24256
204.29.231.0/24256
205.198.112.0/212,048
205.198.112.0/24256
205.198.114.0/24256
205.198.116.0/24256
205.198.117.0/24256
205.198.119.0/24256
205.198.120.0/221,024
205.198.120.0/24256
205.198.121.0/24256
205.198.122.0/24256
205.198.124.0/23512
205.198.125.0/24256
205.198.126.0/23512
205.198.126.0/24256
205.198.127.0/24256

IPv6 prefixes (17 prefixes)

Prefix
2001:df3:9a40::/48
2405:5240::/38
2405:5240:800::/38
2406:140::/38
2406:140:800::/38
2406:dd80::/38
2406:dd80:800::/38
2606:1540::/38
2606:1540:800::/38
2606:1540:1000::/38
2606:1540:1400::/38
2606:1540:1800::/38
2606:1540:2000::/38
2606:1540:2800::/38
2606:1540:3000::/38
2606:1540:3c00::/38
2606:1540:4000::/38

Neighbours

Upstreams (transit or peers) (36)

ASNetworkVisibility
AS140570Hong Kong Beecloud System Technology Services Limited2,282
AS7473Singapore Telecommunications Ltd789
AS9002RETN Limited716
AS9286KINX686
AS2914NTT America, Inc.676
AS138195MOACK.Co.LTD502
AS6939Hurricane Electric LLC394
AS45250Vocom International Telecommunications AP Area263
AS4766Korea Telecom258
AS174Cogent Communications, LLC153
AS1299Arelion Sweden AB149
AS2497Internet Initiative Japan Inc.141
AS3356Level 3 Parent, LLC139
AS9957KINX51
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC32
AS38008Aperture Science Limited14
AS35280F5 Networks SARL13
AS4635-10
AS21859Zenlayer Inc10
AS24482SG.GS8
AS33891Core-Backbone GmbH6
AS137409GSL Networks Pty LTD5
AS8359MTS PJSC3
AS20326TeraSwitch Networks Inc.2
AS49127Asimo Networks B.V.2
AS63927-2
AS132132MyRepublic Ltd.2
AS4657StarHub Ltd1
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia1
AS15802-1

The 30 most visible of 36.

Downstreams (customers) (9)

ASNetworkVisibility
AS15082OMEGAI763
AS5068STACKS INC741
AS216138SKYQUANTUM TELECOM LTD.569
AS153560STACKS-AS-AP - 202208375N488
AS152330Alllan Communications Co., Limited330
AS401254NETSOLVE NETWORK TECHNOLOGY LIMITED262
AS131482Hangzhou Aron Teconology Co.,Ltd.257
AS136758HONGKONG CENTURY-ONE LIMITED257
AS2914NTT America, Inc.1

19 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.