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Autonomous System

AS43727 · JSC KVANT-TELEKOM

Overview

AS43727 is announced on the Internet: RIPE RIS route collectors currently see 88 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 28,672 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 84 upstream neighbours (transit providers or peers) and 416 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), INETCOM CARRIER LLC (AS35598), and JSC Kazakhtelecom (AS9198). AS43727 was assigned by RIPE NCC, and its registration country is Russia.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 18, 2026 at 9:26 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 77.241.240.1, the first address of 77.241.240.0/20. 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 (88 prefixes)

PrefixAddresses
5.187.64.0/24256
5.187.65.0/24256
5.187.76.0/24256
5.187.77.0/24256
5.187.79.0/24256
5.187.80.0/24256
5.187.81.0/24256
5.187.83.0/24256
5.187.84.0/24256
5.187.90.0/24256
31.210.208.0/212,048
31.210.208.0/24256
31.210.209.0/24256
31.210.210.0/24256
31.210.211.0/24256
31.210.212.0/24256
31.210.213.0/24256
31.210.214.0/24256
31.210.215.0/24256
31.210.216.0/212,048
31.210.216.0/24256
31.210.217.0/24256
31.210.218.0/24256
31.210.219.0/24256
31.210.220.0/24256
31.210.221.0/24256
31.210.222.0/24256
77.241.240.0/204,096
77.241.240.0/212,048
77.241.242.0/24256
77.241.248.0/212,048
91.195.126.0/23512
91.195.126.0/24256
91.195.127.0/24256
91.202.24.0/221,024
91.202.24.0/24256
91.202.25.0/24256
91.202.26.0/24256
91.202.27.0/24256
93.157.144.0/212,048
93.157.144.0/24256
93.157.145.0/24256
93.157.146.0/24256
93.157.147.0/24256
93.157.148.0/24256
93.157.149.0/24256
93.157.150.0/24256
93.157.151.0/24256
109.106.128.0/212,048
109.106.136.0/221,024
109.106.136.0/24256
109.106.137.0/24256
109.106.138.0/24256
109.106.139.0/24256
109.106.144.0/204,096
109.106.144.0/24256
109.106.146.0/24256
109.106.149.0/24256
178.210.32.0/212,048
178.210.32.0/24256
178.210.33.0/24256
178.210.34.0/24256
178.210.36.0/24256
178.210.37.0/24256
178.210.38.0/24256
178.210.39.0/24256
178.210.40.0/212,048
178.210.40.0/24256
178.210.41.0/24256
178.210.42.0/24256
178.210.43.0/24256
178.210.44.0/24256
178.210.45.0/24256
178.210.46.0/24256
178.210.47.0/24256
178.210.48.0/212,048
178.210.48.0/24256
178.210.49.0/24256
178.210.50.0/24256
178.210.51.0/24256
178.210.52.0/24256
178.210.53.0/24256
178.210.54.0/24256
178.210.55.0/24256
178.210.56.0/24256
178.210.57.0/24256
178.210.58.0/24256
185.177.97.0/24256

IPv6 prefixes (1 prefix)

Prefix
2a00:1440::/32

Neighbours

Upstreams (transit or peers) (84)

ASNetworkVisibility
AS6939Hurricane Electric LLC20,355
AS35598INETCOM CARRIER LLC2,736
AS9198JSC Kazakhtelecom1,414
AS20764CJSC RASCOM1,092
AS6762TELECOM ITALIA SPARKLE S.p.A.1,030
AS3216PJSC "Vimpelcom"815
AS202984Chernyshov Aleksandr Aleksandrovich494
AS31500Global Network Management Inc486
AS34019Hivane Association323
AS34177Celeste SAS321
AS31133PJSC MegaFon308
AS47122CYBERFIRST LLC305
AS58057Securebit AG287
AS15958CETIN Ltd. Belgrade251
AS34549meerfarbig GmbH & Co. KG236
AS1103SURF B.V.207
AS200612GulfBridgeInternational Gulf Bridge International Inc.203
AS44901belcloud Belcloud LTD200
AS24961WIIT AG199
AS49434FBW NETWORKS SAS186
AS8455atom86 BV180
AS47692Nessus GmbH178
AS34927iFog GmbH174
AS14840BR.Digital Telecom162
AS25091IP-Max SA161
AS8298IPng Networks GmbH142
AS3935131173 Services AB142
AS8758Iway AG126
AS47147Anexia Cloud Solutions GmbH124
AS1267WIND TRE S.P.A.110

The 30 most visible of 84.

Downstreams (customers) (416)

ASNetworkVisibility
AS9198JSC Kazakhtelecom13,578
AS35104QMOBILE JSC10,556
AS28910"Uzbektelekom" Joint Stock Company3,727
AS35168TNS-Plus LLP3,385
AS34629"Resurs-Svyaz" Ltd1,458
AS41798JSC Transtelecom685
AS60569ARD Teleport LTD.524
AS44158"Altura" ltd.504
AS41575Intercity Ltd.457
AS57018In-line Telekom LLC417
AS44604-405
AS197719-385
AS8981-381
AS41344-366
AS24689-335
AS28917Fiord Networks, UAB332
AS43567-313
AS208803-311
AS49811-303
AS59661-303
AS47321-300
AS58134-291
AS206395-290
AS62288-289
AS44391-279
AS13178-276
AS48099-267
AS199427-266
AS16323-264
AS50037-253

The 30 most visible of 416.

124 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.