Autonomous System
AS12329 · GLASFASER RUHR GmbH & Co. KG
Overview
AS12329 is announced on the Internet: RIPE RIS route collectors currently see 20 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 24,832 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 71 upstream neighbours (transit providers or peers) and 12 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), DOKOM Gesellschaft fuer Telekommunikation mbH (AS15763), and LWLcom GmbH (AS50629). AS12329 was assigned by RIPE NCC, and its registration country is Germany.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:44 PM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 212.23.128.1, the first address of 212.23.128.0/19. 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 (20 prefixes)
| Prefix | Addresses |
|---|---|
| 62.221.232.0/21 | 2,048 |
| 62.221.240.0/21 | 2,048 |
| 81.173.6.0/24 | 256 |
| 91.228.150.0/24 | 256 |
| 91.231.204.0/24 | 256 |
| 93.157.143.0/24 | 256 |
| 149.232.48.0/20 | 4,096 |
| 156.67.59.0/24 | 256 |
| 157.97.98.0/23 | 512 |
| 157.97.146.0/23 | 512 |
| 159.100.48.0/24 | 256 |
| 185.11.56.0/22 | 1,024 |
| 185.19.9.0/24 | 256 |
| 185.154.112.0/22 | 1,024 |
| 185.217.52.0/22 | 1,024 |
| 185.249.168.0/22 | 1,024 |
| 194.24.230.0/24 | 256 |
| 194.45.52.0/22 | 1,024 |
| 194.156.86.0/24 | 256 |
| 212.23.128.0/19 | 8,192 |
IPv6 prefixes (1 prefix)
| Prefix |
|---|
| 2001:7d8::/32 |
Neighbours
Upstreams (transit or peers) (71)
| AS | Network | Visibility |
|---|---|---|
| AS6939 | Hurricane Electric LLC | 1,832 |
| AS15763 | DOKOM Gesellschaft fuer Telekommunikation mbH | 1,153 |
| AS50629 | LWLcom GmbH | 854 |
| AS3320 | Deutsche Telekom AG | 534 |
| AS34309 | Link11 GmbH | 256 |
| AS16024 | GELSEN-NET Kommunikationsgesellschaft mbH | 154 |
| AS13030 | Init7 (Switzerland) Ltd. | 60 |
| AS37497 | Network Platforms (PTY) LTD | 43 |
| AS25091 | IP-Max SA | 35 |
| AS61049 | Exascale Ltd | 31 |
| AS35625 | Eurofiber France SAS | 30 |
| AS5405 | Inter.link GmbH | 29 |
| AS29691 | Nine Internet Solutions AG | 26 |
| AS34177 | Celeste SAS | 26 |
| AS48362 | Stadtwerke Feldkirch | 26 |
| AS56655 | Gigahost AS | 26 |
| AS12779 | - | 25 |
| AS20764 | CJSC RASCOM | 25 |
| AS41327 | Fiber Telecom S.p.A. | 24 |
| AS35280 | F5 Networks SARL | 23 |
| AS39351 | 31173 Services AB | 23 |
| AS34019 | Hivane Association | 22 |
| AS37468 | Angola Cables | 21 |
| AS8298 | IPng Networks GmbH | 20 |
| AS14840 | BR.Digital Telecom | 20 |
| AS24961 | WIIT AG | 20 |
| AS30844 | Liquid Telecommunications Ltd | 20 |
| AS15802 | Emirates Integrated Telecommunications Company PJSC | 19 |
| AS37100 | SEACOM Limited | 19 |
| AS4657 | StarHub Ltd | 18 |
The 30 most visible of 71.
Downstreams (customers) (12)
| AS | Network | Visibility |
|---|---|---|
| AS15763 | DOKOM Gesellschaft fuer Telekommunikation mbH | 1,207 |
| AS16024 | GELSEN-NET Kommunikationsgesellschaft mbH | 780 |
| AS197990 | T&A SYSTEME GmbH | 741 |
| AS29484 | Ruhr-Universitaet Bochum | 681 |
| AS203593 | TeleMark Telekommunikationsgesellschaft Mark mbH | 681 |
| AS31184 | Michael Bussmann | 461 |
| AS207439 | Korves.Net USA LLC | 333 |
| AS209405 | Westfalen Westfalen Beteiligungen Aktiengesellschaft | 274 |
| AS208527 | Wieland-Werke AG | 269 |
| AS60522 | KomMITT-Ratingen GmbH | 151 |
| AS34309 | - | 63 |
| AS12886 | - | 19 |
79 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.