AS12480 — ASILK

AS12480 announces 11 IPv4 prefixes covering 12,288 addresses and 2 IPv6 prefixes.

About this network

A German ISP with sixteen IPv4 prefixes, 121 neighbours, and reverse names that say unassigned out loud.

What it's used for

• Business connectivity and hosting. 12,288 addresses in sixteen IPv4 prefixes, two IPv6 /32s, and 121 observed BGP neighbours.

Notable

• The company's own blocks share netname DE-ILK-990505, dated YYMMDD, while the newer ones read DE-ILK-20160428 and DE-ILK-20170308 in YYYYMMDD.
• Several announced blocks belong to other parties: BDSNET to a software consultancy, JMNET to an individual, CAS-DE to InterConnect GmbH, DE-AUDIUS-20210712 to audius GmbH.
• 194.121.203.0/24 is netname US-GTTCOMMUNICATIONS-19950731, registrant AS3257 Net Admin.
• Of eighteen sampled addresses, all eighteen answered. Six replied unassigned, four are generated host-N names, and two are broadcast addresses labelled bc..
• Customer domains show through in the reverse tree: vlb-203-254.schwabe.de and bc.felger.de.

Interesting

• Publishing unassigned as a reverse name is a positive statement where most networks would publish nothing. The zone is complete enough that empty addresses have an entry saying they are empty, which is the work of somebody maintaining the file rather than generating it.
• The netname dates are the company's own timeline in two formats. 990505 was written before the year 2000 problem taught everyone to spell years out; the 2016 and 2017 records were written after.
• 121 neighbours on 12,288 addresses is a network that peers far beyond its size, which is what surviving German regional ISPs did instead of growing.

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

Announced prefixes

• 185.149.156.0/22
• 185.193.144.0/22
• 193.141.55.0/24
• 194.26.16.0/24
• 194.45.22.0/24
• 194.59.13.0/24
• 194.120.173.0/24
• 194.121.203.0/24
• 194.172.58.0/24
• 194.174.11.0/24
• 212.86.192.0/19
• 2a00:1970::/32
• 2a11:9400::/32

Upstream networks

• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS3257 GTT Communications Inc.
• AS24482 SG.GS
• AS212024 Marc Schmitt
• AS20485 Joint Stock Company TransTeleCom
• AS37100 SEACOM Limited
• AS17639 Converge ICT Solutions Inc.
• AS29632 Netassist International EOOD
• AS37721 Virtual Technologies & Solutions
• AS12859 BIT BV
• AS1836 green.ch AG
• AS34019 Hivane Association
• AS56662 Marcin Gondek
• AS48362 Stadtwerke Feldkirch
• AS213241 TECHIT.BE SRL

Downstream networks

• AS34701 Witzenmann GmbH
• AS44177 INBW Infrastruktur und Netzwerk Baden-Wuertemberg GmbH
• AS51887 FREQUENTIS COMSOFT GmbH
• AS15363 arvato infoscore GmbH
• AS214651 ISCAR Germany GmbH
• AS39100 Stadtverwaltung Pforzheim

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS34701 Witzenmann GmbH
• AS174 Cogent Communications, LLC
• AS44177 INBW Infrastruktur und Netzwerk Baden-Wuertemberg GmbH
• AS51887 FREQUENTIS COMSOFT GmbH
• AS15363 arvato infoscore GmbH
• AS34549 meerfarbig GmbH & Co. KG
• AS3257 GTT Communications Inc.
• AS214651 ISCAR Germany GmbH
• AS24482 SG.GS
• AS212024 Marc Schmitt
• AS37100 SEACOM Limited
• AS20485 Joint Stock Company TransTeleCom
• AS17639 Converge ICT Solutions Inc.
• AS37721 Virtual Technologies & Solutions
• AS29632 Netassist International EOOD
• AS39100 Stadtverwaltung Pforzheim
• AS12859 BIT BV
• AS34019 Hivane Association
• AS213241 TECHIT.BE SRL
• AS48362 Stadtwerke Feldkirch
• AS1836 green.ch AG
• AS56662 Marcin Gondek
• AS31500 Global Network Management Inc

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany