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Autonomous System

AS8400 · TELEKOM SRBIJA a.d.

Overview

AS8400 is announced on the Internet: RIPE RIS route collectors currently see 88 IPv4 prefixes and 3 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 823,808 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 82 upstream neighbours (transit providers or peers) and 86 downstream neighbours (customers or networks it carries). Its most visible upstreams are Level 3 Parent, LLC (AS3356), RETN Limited (AS9002), and Arelion Sweden AB (AS1299). AS8400 was assigned by RIPE NCC, and its registration country is Serbia.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 93.86.0.1

The trace goes to 93.86.0.1, the first address of 93.86.0.0/15. 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
5.134.104.0/212,048
31.14.33.0/24256
37.35.8.0/212,048
46.17.120.0/212,048
46.235.96.0/212,048
62.101.128.0/204,096
62.240.24.0/212,048
77.46.128.0/1732,768
79.101.0.0/1665,536
87.250.32.0/198,192
89.34.2.0/24256
89.39.144.0/23512
89.42.12.0/24256
89.46.126.0/23512
89.47.40.0/23512
91.150.64.0/1816,384
92.60.224.0/24256
92.60.225.0/24256
92.60.226.0/24256
92.60.230.0/24256
92.60.231.0/24256
92.60.237.0/24256
92.60.238.0/24256
92.60.239.0/24256
92.244.128.0/198,192
93.86.0.0/15131,072
93.86.0.0/1665,536
93.87.0.0/1665,536
93.92.248.0/212,048
94.228.229.0/24256
94.228.231.0/24256
94.228.234.0/24256
94.228.237.0/24256
109.72.48.0/204,096
109.92.0.0/15131,072
109.94.228.0/221,024
109.94.232.0/212,048
109.122.64.0/1816,384
109.198.0.0/198,192
176.67.192.0/198,192
176.67.204.0/24256
176.67.210.0/24256
176.67.217.0/24256
178.17.30.0/24256
178.79.0.0/1816,384
178.79.16.0/23512
178.220.0.0/15131,072
178.222.0.0/1665,536
178.223.0.0/1732,768
178.223.128.0/1816,384
178.223.192.0/198,192
178.237.208.0/204,096
178.250.136.0/212,048
185.10.140.0/221,024
185.26.172.0/221,024
185.27.128.0/24256
185.34.92.0/221,024
185.36.255.0/24256
185.71.88.0/221,024
185.103.136.0/221,024
185.125.176.0/23512
185.179.136.0/221,024
185.190.152.0/221,024
188.215.30.0/24256
188.240.88.0/24256
188.240.200.0/24256
193.203.18.0/23512
195.178.32.0/198,192
195.252.82.0/24256
195.252.88.0/24256
195.252.92.0/221,024
212.57.40.0/212,048
212.62.59.0/24256
212.115.120.0/221,024
212.200.0.0/1665,536
212.200.0.0/1732,768
212.200.0.0/212,048
212.200.8.0/221,024
212.200.12.0/23512
212.200.16.0/23512
212.200.128.0/1732,768
212.200.128.0/1816,384
212.200.192.0/198,192
212.200.226.0/23512
212.200.228.0/221,024
212.200.232.0/212,048
212.200.240.0/204,096
213.196.96.0/204,096

IPv6 prefixes (3 prefixes)

Prefix
2a00:e90::/32
2a06:5b00::/29
2a06:63c0::/29

Neighbours

Upstreams (transit or peers) (82)

ASNetworkVisibility
AS3356Level 3 Parent, LLC3,742
AS9002RETN Limited3,595
AS1299Arelion Sweden AB3,325
AS6453TATA COMMUNICATIONS (AMERICA) INC2,132
AS13004Serbian Open Exchange DOO1,401
AS6939Hurricane Electric LLC1,378
AS13030Init7 (Switzerland) Ltd.552
AS34549meerfarbig GmbH & Co. KG422
AS50304Blix Solutions AS405
AS34927iFog GmbH306
AS34019Hivane Association291
AS34177Celeste SAS290
AS37497Network Platforms (PTY) LTD279
AS25091IP-Max SA275
AS3935131173 Services AB272
AS29691Nine Internet Solutions AG258
AS24961WIIT AG249
AS14840BR.Digital Telecom245
AS48362Stadtwerke Feldkirch225
AS41327Fiber Telecom S.p.A.223
AS33891Core-Backbone GmbH212
AS8298IPng Networks GmbH202
AS29075IELO-LIAZO SERVICES SAS194
AS5405Inter.link GmbH189
AS50673Serverius Holding B.V.180
AS1103SURF B.V.174
AS49434FBW NETWORKS SAS164
AS12779-158
AS37468Angola Cables155
AS21320GEANT Vereniging153

The 30 most visible of 82.

Downstreams (customers) (86)

ASNetworkVisibility
AS43940Drustvo za telekomunikacije "MTEL" DOO3,521
AS25144"Telekomunikacije Republike Srpske" akcionarsko drustvo Banja Luka2,651
AS9125Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun2,431
AS6700TELEKOM SRBIJA a.d.2,248
AS202441mts D.O.O2,090
AS33983ARTMOTION SH.P.K.1,207
AS57207Orion Telekom Tim d.o.o.Beograd821
AS25467Akton d.o.o.680
AS211285Akcionarsko drustvo Elektroprivreda Srbije, Beograd560
AS28964Orion Telekom Tim d.o.o.Beograd556
AS62420-550
AS201236-549
AS201382-536
AS203877astratelekom ASTRA TELEKOM DOO BEOGRAD536
AS43281-468
AS29163-409
AS211196-407
AS214358-371
AS51859-361
AS8771-355
AS41937-354
AS42186-341
AS31161-329
AS50653-312
AS49486-309
AS48015-301
AS48580-300
AS43191-295
AS197423-288
AS44287-285

The 30 most visible of 86.

186 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.