Autonomous System
AS51178 · JSC "ER-Telecom Holding"
Overview
AS51178 is announced on the Internet: RIPE RIS route collectors currently see 13 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 7,168 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 28 upstream neighbours (transit providers or peers) and 14 downstream neighbours (customers or networks it carries). Its most visible upstreams are IQWeb FZ-LLC (AS59692), Citytelecom LLC (AS29076), and RETN Limited (AS9002). AS51178 was assigned by RIPE NCC, and its registration country is Russia.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:25 AM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 91.197.192.1, the first address of 91.197.192.0/22. 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)
| Prefix | Addresses |
|---|---|
| 5.61.13.0/24 | 256 |
| 5.61.14.0/24 | 256 |
| 91.197.192.0/22 | 1,024 |
| 91.219.64.0/22 | 1,024 |
| 92.249.4.0/24 | 256 |
| 93.88.172.0/22 | 1,024 |
| 93.88.175.0/24 | 256 |
| 185.18.124.0/22 | 1,024 |
| 185.132.196.0/23 | 512 |
| 185.218.68.0/23 | 512 |
| 185.218.70.0/24 | 256 |
| 188.68.184.0/22 | 1,024 |
| 188.68.187.0/24 | 256 |
IPv6 prefixes (1 prefix)
| Prefix |
|---|
| 2a00:9801::/32 |
Neighbours
Upstreams (transit or peers) (28)
| AS | Network | Visibility |
|---|---|---|
| AS59692 | IQWeb FZ-LLC | 1,058 |
| AS29076 | Citytelecom LLC | 412 |
| AS9002 | RETN Limited | 357 |
| AS201706 | SERVICEPIPE LLC | 274 |
| AS57304 | JSC "RetnNet" | 222 |
| AS20485 | Joint Stock Company TransTeleCom | 206 |
| AS1299 | Arelion Sweden AB | 197 |
| AS50509 | Transroute Telecom LTD | 105 |
| AS57724 | DDOS-GUARD LTD | 69 |
| AS35598 | INETCOM CARRIER LLC | 45 |
| AS25091 | IP-Max SA | 21 |
| AS49434 | FBW NETWORKS SAS | 13 |
| AS47692 | - | 12 |
| AS61049 | Exascale Ltd | 12 |
| AS9049 | JSC "ER-Telecom Holding" | 11 |
| AS41327 | Fiber Telecom S.p.A. | 10 |
| AS8218 | Zayo Infrastructure France SA | 9 |
| AS12389 | PJSC Rostelecom | 9 |
| AS15958 | CETIN Ltd. Belgrade | 8 |
| AS50673 | - | 7 |
| AS6663 | Euroweb Romania S.R.L. | 6 |
| AS60171 | AFR-IX TELECOM S.A. | 6 |
| AS6204 | INTERKVM HOST SRL | 5 |
| AS9198 | JSC Kazakhtelecom | 5 |
| AS42295 | TBISS Ltd | 5 |
| AS56655 | Gigahost AS | 4 |
| AS62000 | SERVERD SAS | 4 |
| AS39351 | 31173 Services AB | 2 |
Downstreams (customers) (14)
| AS | Network | Visibility |
|---|---|---|
| AS59399 | FAI Russian Maritime Register of Shipping | 309 |
| AS204272 | ASARTA LLC | 286 |
| AS204891 | csi LLC Crystal Service Integration | 280 |
| AS202537 | Feniks JSC | 203 |
| AS199072 | "Center of Computor Research" JSC | 170 |
| AS210787 | CDEK-Global LLC | 163 |
| AS202082 | LLC ILOT | 161 |
| AS62330 | ASH Ltd | 152 |
| AS203597 | STEK LLC | 127 |
| AS197303 | OCS Group Limited | 114 |
| AS200015 | - | 113 |
| AS48102 | - | 57 |
| AS198062 | - | 21 |
| AS208511 | - | 14 |
16 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.