Skip to content

Autonomous System

AS6823 · 3C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.

Overview

AS6823 is announced on the Internet: RIPE RIS route collectors currently see 18 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 4,608 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 68 upstream neighbours (transit providers or peers) and 6 downstream neighbours (customers or networks it carries). Its most visible upstreams are Inter.link GmbH (AS5405), NTT America, Inc. (AS2914), and belcloud Belcloud LTD (AS44901). AS6823 was assigned by RIPE NCC, and its registration country is Türkiye.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:53 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 37.202.48.1, the first address of 37.202.48.0/24. 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 (18 prefixes)

PrefixAddresses
37.202.48.0/24256
37.202.49.0/24256
37.202.50.0/24256
37.202.51.0/24256
37.202.52.0/24256
37.202.53.0/24256
37.202.54.0/24256
37.202.55.0/24256
95.133.138.0/24256
178.251.40.0/24256
178.251.41.0/24256
178.251.42.0/24256
178.251.43.0/24256
178.251.44.0/24256
178.251.45.0/24256
178.251.46.0/24256
178.251.47.0/24256
213.146.190.0/24256

IPv6 prefixes (1 prefix)

Prefix
2a01:6be0::/32

Neighbours

Upstreams (transit or peers) (68)

ASNetworkVisibility
AS5405Inter.link GmbH661
AS2914NTT America, Inc.227
AS44901belcloud Belcloud LTD130
AS174Cogent Communications, LLC120
AS4849S3Company S3 Company Ltd75
AS6204INTERKVM HOST SRL26
AS34019Hivane Association13
AS34549meerfarbig GmbH & Co. KG13
AS3935131173 Services AB13
AS8298IPng Networks GmbH12
AS14840BR.Digital Telecom12
AS24961WIIT AG11
AS34927iFog GmbH11
AS58057Securebit AG10
AS1103SURF B.V.9
AS25091IP-Max SA9
AS41327-9
AS4230CLARO S.A.8
AS34177Celeste SAS8
AS48362Stadtwerke Feldkirch8
AS50877Airbeam S.r.l.8
AS6696VERIXI SA7
AS35280F5 Networks SARL7
AS6663Euroweb Romania S.R.L.6
AS6777-6
AS9121-6
AS29691Nine Internet Solutions AG6
AS37468Angola Cables6
AS9002RETN Limited5
AS9044BSE Software GmbH5

The 30 most visible of 68.

Downstreams (customers) (6)

ASNetworkVisibility
AS47894Veriteknik Bilisim Basin Ve Yayin Limited Sirketi519
AS60847Karel Iletisim Hizmetleri A.S.332
AS8685DorukNet Doruk Iletisim ve Otomasyon Sanayi ve Ticaret A.S.231
AS200010Olfe Veri Merkezi Anonim Sirketi162
AS204647MIXNET TELEKOMUNIKASYON HIZMETLERI AS155
AS199099ERLION BILISIM LIMITED SIRKETI34

86 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.