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Autonomous System

AS43139 ยท Maximum-Net LLC

Overview

AS43139 is announced on the Internet: RIPE RIS route collectors currently see 13 IPv4 prefixes and 2 IPv6 prefixes 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 50 upstream neighbours (transit providers or peers) and 22 downstream neighbours (customers or networks it carries). Its most visible upstreams are RETN Limited (AS9002), Dataline LLC (AS35297), and Eurotranstelecom Ltd (AS35320). AS43139 was assigned by RIPE NCC, and its registration country is Ukraine.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:01 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 178.158.192.1, the first address of 178.158.192.0/18. 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 (13 prefixes)

PrefixAddresses
64.240.77.0/24256
71.5.40.0/24256
91.196.148.0/221,024
94.158.80.0/204,096
109.207.192.0/204,096
178.158.192.0/1816,384
185.104.191.0/24256
185.199.96.0/221,024
194.187.30.0/23512
195.128.25.0/24256
195.128.26.0/23512
195.128.26.0/24256
195.128.27.0/24256

IPv6 prefixes (2 prefixes)

Prefix
2001:67c:738::/48
2a0a:9b40::/29

Neighbours

Upstreams (transit or peers) (50)

ASNetworkVisibility
AS9002RETN Limited3,325
AS35297Dataline LLC1,273
AS35320Eurotranstelecom Ltd869
AS50263A-Systems Sp. z o.o.719
AS6939Hurricane Electric LLC331
AS3303Swisscom (Schweiz) AG137
AS14840BR.Digital Telecom34
AS50629LWLcom GmbH23
AS49434FBW NETWORKS SAS22
AS42295TBISS Ltd19
AS263444Open X Tecnologia Ltda17
AS6663Euroweb Romania S.R.L.15
AS8218-12
AS33891Core-Backbone GmbH5
AS8298IPng Networks GmbH4
AS35280F5 Networks SARL4
AS62000SERVERD SAS4
AS5405Inter.link GmbH3
AS15576NTS workspace AG3
AS29632-3
AS34019Hivane Association3
AS6204INTERKVM HOST SRL2
AS20764CJSC RASCOM2
AS24961WIIT AG2
AS25091IP-Max SA2
AS34177Celeste SAS2
AS37100SEACOM Limited2
AS37468Angola Cables2
AS37497Network Platforms (PTY) LTD2
AS3935131173 Services AB2

The 30 most visible of 50.

Downstreams (customers) (22)

ASNetworkVisibility
AS213724FnA Maximum-Net LLC810
AS45017"DOMINET" LLC554
AS201041Obltelecom LLC348
AS25514Modus-Global LLC280
AS209548ircomserv IrpenComunikaciaService LLC279
AS12545Transcom Ltd278
AS48019Terra-Telecom LLC278
AS41467"DOMINET" LLC277
AS52179UA.NET LLC277
AS57076Maximum-Net LLC277
AS57361-277
AS202327-277
AS42259-276
AS59942-276
AS57442-274
AS201497-260
AS41586-166
AS42504-112
AS48683-65
AS56485-50
AS39307-41
AS41435-7

50 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.