Autonomous System
AS21215 · UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
Overview
AS21215 is announced on the Internet: RIPE RIS route collectors currently see 10 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 13,056 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 77 upstream neighbours (transit providers or peers) and 754 downstream neighbours (customers or networks it carries). Its most visible upstreams are Cogent Communications, LLC (AS174), Arelion Sweden AB (AS1299), and Level 3 Parent, LLC (AS3356). AS21215 was assigned by RIPE NCC, and its registration country is Serbia.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:11 AM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 213.244.208.1, the first address of 213.244.208.0/20. 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 (10 prefixes)
| Prefix | Addresses |
|---|---|
| 5.22.163.0/24 | 256 |
| 5.22.166.0/24 | 256 |
| 5.22.167.0/24 | 256 |
| 89.207.192.0/21 | 2,048 |
| 176.109.136.0/21 | 2,048 |
| 185.13.8.0/22 | 1,024 |
| 185.18.12.0/22 | 1,024 |
| 185.20.36.0/22 | 1,024 |
| 185.81.60.0/22 | 1,024 |
| 213.244.208.0/20 | 4,096 |
IPv6 prefixes (1 prefix)
| Prefix |
|---|
| 2a03:dd80::/29 |
Neighbours
Upstreams (transit or peers) (77)
| AS | Network | Visibility |
|---|---|---|
| AS174 | Cogent Communications, LLC | 1,725 |
| AS1299 | Arelion Sweden AB | 1,699 |
| AS3356 | Level 3 Parent, LLC | 1,338 |
| AS13004 | Serbian Open Exchange DOO | 616 |
| AS6939 | Hurricane Electric LLC | 131 |
| AS34549 | meerfarbig GmbH & Co. KG | 127 |
| AS34927 | iFog GmbH | 106 |
| AS6830 | LibertyGlobal Liberty Global Europe Holding B.V. | 101 |
| AS34177 | Celeste SAS | 100 |
| AS34019 | Hivane Association | 86 |
| AS1103 | SURF B.V. | 85 |
| AS8455 | atom86 BV | 85 |
| AS13030 | Init7 (Switzerland) Ltd. | 84 |
| AS1836 | green.ch AG | 83 |
| AS8298 | IPng Networks GmbH | 81 |
| AS25091 | IP-Max SA | 74 |
| AS39351 | 31173 Services AB | 74 |
| AS14840 | BR.Digital Telecom | 71 |
| AS12859 | - | 70 |
| AS20485 | Joint Stock Company TransTeleCom | 69 |
| AS24961 | WIIT AG | 69 |
| AS6758 | Monaco Telecom S.A. | 67 |
| AS12779 | IT.Gate S.p.A. | 66 |
| AS29075 | IELO-LIAZO SERVICES SAS | 64 |
| AS47147 | Anexia Cloud Solutions GmbH | 61 |
| AS41327 | Fiber Telecom S.p.A. | 59 |
| AS9050 | Orange Romania S.A. | 52 |
| AS48362 | Stadtwerke Feldkirch | 52 |
| AS20764 | CJSC RASCOM | 50 |
| AS29691 | Nine Internet Solutions AG | 47 |
The 30 most visible of 77.
Downstreams (customers) (754)
| AS | Network | Visibility |
|---|---|---|
| AS174 | Cogent Communications, LLC | 4,166 |
| AS8866 | Vivacom Bulgaria EAD | 4,106 |
| AS25472 | Nova Telecommunications & Media Single Member S.A | 3,624 |
| AS3356 | Level 3 Parent, LLC | 3,620 |
| AS42560 | Telemach BH d.o.o. Sarajevo | 2,607 |
| AS1241 | Nova Telecommunications & Media Single Member S.A | 2,282 |
| AS205714 | tele2hr Telemach Hrvatska d.o.o. | 1,752 |
| AS1299 | Arelion Sweden AB | 1,651 |
| AS3212 | Telemach Slovenija d.o.o. | 1,216 |
| AS8220 | COLT Technology Services Group Limited | 529 |
| AS51859 | - | 300 |
| AS31042 | - | 159 |
| AS30844 | Liquid Telecommunications Ltd | 118 |
| AS3223 | Voxility LLP | 78 |
| AS37282 | Main one Cable Company Nigeria Limited | 70 |
| AS20473 | The Constant Company, LLC | 69 |
| AS2686 | AT&T Enterprises, LLC | 62 |
| AS6205 | HizliNet Teknoloji A.S. | 60 |
| AS13030 | Init7 (Switzerland) Ltd. | 52 |
| AS41327 | Fiber Telecom S.p.A. | 51 |
| AS59692 | IQWeb FZ-LLC | 50 |
| AS39386 | - | 45 |
| AS263903 | INFORBARRA TELECOM | 43 |
| AS6939 | Hurricane Electric LLC | 40 |
| AS12400 | Partner Communications Ltd. | 40 |
| AS16019 | Vodafone Czech Republic a.s. | 38 |
| AS29119 | AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 32 |
| AS18678 | INTERNEXA S.A. E.S.P | 31 |
| AS39686 | Eurofiber Nederland BV | 31 |
| AS208972 | GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI | 30 |
The 30 most visible of 754.
118 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.