AS12329 — TMR

AS12329 announces 20 IPv4 prefixes covering 24,832 addresses and 1 IPv6 prefixes.

About this network

Glasfaser Ruhr is a fibre network in the Ruhr, Germany's old industrial heartland, and it carries other companies' address space as well as its own.

What it's used for

• Regional fibre connectivity. 24,832 addresses across 20 announced prefixes, with 156 observed BGP neighbours — far more interconnection than a network this size needs for itself.

Notable

• Four different companies appear as registrants. Alongside the DE-GLASFASER- blocks there is DE-SKYSYSTEMS-20170811 registered to SkySystems IT GmbH, SYMRISE-194-45-52-0-22 registered to Symrise AG, and two blocks registered to spaixx AG.
• The DE-GLASFASER- netnames date the growth: 20030210, 20030219, 20160531, 20180314.
• One IPv6 allocation, 2001:7d8::/32. Reverse DNS runs under glabodns.de with the octets written backwards, as in 254-114-154-185-glabodns.de.

Interesting

• One block carries the netname NET-19840101 — a netname that is nothing but a date, the 1st of January 1984. That is far earlier than the address range it sits on could have been assigned, so it reads as a default value that got written into the registry and stayed there, the way a placeholder date does when nothing downstream validates it.
• Symrise makes flavours and fragrances, and its network appearing here is the ordinary case for a regional fibre operator: the customers are the industrial firms in its footprint, and they keep their own address space while the carrier does the announcing.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 62.221.232.0/21
• 62.221.240.0/21
• 81.173.6.0/24
• 91.228.150.0/24
• 91.231.204.0/24
• 93.157.143.0/24
• 149.232.48.0/20
• 156.67.59.0/24
• 157.97.98.0/23
• 157.97.146.0/23
• 159.100.48.0/24
• 185.11.56.0/22
• 185.19.9.0/24
• 185.154.112.0/22
• 185.217.52.0/22
• 185.249.168.0/22
• 194.24.230.0/24
• 194.45.52.0/22
• 194.156.86.0/24
• 212.23.128.0/19
• 2001:7d8::/32

Upstream networks

• AS50629 LWLcom GmbH
• AS3320 Deutsche Telekom AG
• AS6939 Hurricane Electric LLC
• AS34309 Link11 GmbH
• AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH
• AS16024 GELSEN-NET Kommunikationsgesellschaft mbH
• AS48362 Stadtwerke Feldkirch
• AS24482 SG.GS
• AS37100 SEACOM Limited
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS20766 Association "Gitoyen"
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS12779 IT.Gate S.p.A.
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS212024 Marc Schmitt
• AS34800 Securebit AG
• AS1836 green.ch AG
• AS56655 Gigahost AS
• AS20485 Joint Stock Company TransTeleCom
• AS49559 A-Systems Sp. z o.o.
• AS34927 iFog GmbH
• AS3216 PJSC "Vimpelcom"

Downstream networks

• AS203593 TeleMark Telekommunikationsgesellschaft Mark mbH
• AS29484 Ruhr-Universitaet Bochum
• AS16024 GELSEN-NET Kommunikationsgesellschaft mbH
• AS197990 T&A SYSTEME GmbH
• AS207439 Korves.Net USA LLC
• AS31184 Michael Bussmann
• AS60522 KomMITT-Ratingen GmbH
• AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH
• AS209405 Westfalen Beteiligungen Aktiengesellschaft
• AS208527 Wieland-Werke AG

Adjacent networks

• AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH
• AS6939 Hurricane Electric LLC
• AS50629 LWLcom GmbH
• AS203593 TeleMark Telekommunikationsgesellschaft Mark mbH
• AS29484 Ruhr-Universitaet Bochum
• AS16024 GELSEN-NET Kommunikationsgesellschaft mbH
• AS3320 Deutsche Telekom AG
• AS197990 T&A SYSTEME GmbH
• AS34309 Link11 GmbH
• AS207439 Korves.Net USA LLC
• AS31184 Michael Bussmann
• AS60522 KomMITT-Ratingen GmbH
• AS50300 CustodianDC Limited
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS56655 Gigahost AS
• AS37721 Virtual Technologies & Solutions
• AS48185 team.blue NV
• AS24482 SG.GS
• AS209405 Westfalen Beteiligungen Aktiengesellschaft
• AS208527 Wieland-Werke AG
• AS212024 Marc Schmitt
• AS48362 Stadtwerke Feldkirch
• AS20766 Association "Gitoyen"
• AS57463 NetIX Communications JSC
• AS37100 SEACOM Limited

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands
• DE-CIX Dusseldorf — Düsseldorf, Germany
• Megaport Frankfurt IX — Frankfurt, Germany
• Megaport Dusseldorf IX — Düsseldorf, Germany
• RUHR-CIX — Ruhr, Germany