AS15623 — CYBERLINK Cyberlink AG

AS15623 announces 34 IPv4 prefixes covering 100,096 addresses and 6 IPv6 prefixes.

About this network

The netname dates switch from two-digit years to four-digit ones part way through the list.

What it's used for

• A provider's network. Thirty-four IPv4 prefixes and six IPv6 prefixes announced from Switzerland, one hundred thousand addresses, across two hundred and forty-two observed BGP neighbours.

Notable

• Four netnames end in a six-digit date whose year is two digits; four more end in an eight-digit date with a full year. The change happened between them and both formats were kept.
• One netname describes a service rather than an owner, naming a wholesale broadband product and the protocol that hands out its addresses.
• One answering address is a gateway whose name marks it as a test of a configuration generator, left in public DNS.
• Another answering address is a name server under an entirely different domain.
• Three of the IPv6 prefixes are /29 blocks, each sized for a whole member organisation.
• Eighteen addresses were queried for reverse DNS and six returned a name.

Interesting

• A date format changing inside one company's records is a clock you can read. Everything before the changeover was filed under the old convention, and nobody went back to correct it.
• Naming a machine after the tool that configured it is a good habit reversed: the name says how the device was built rather than what it does, and it outlives the test that created it.
• Two hundred and forty-two neighbours puts this among the better-connected networks of its size, and the netnames say much of that space is sold on rather than used.

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

Announced prefixes

• 5.255.56.0/24
• 45.83.68.0/23
• 45.94.88.0/22
• 62.12.128.0/17
• 89.249.44.0/23
• 167.160.26.0/24
• 185.69.92.0/24
• 185.71.12.0/22
• 185.117.15.0/24
• 185.129.52.0/22
• 185.145.148.0/22
• 185.187.228.0/22
• 185.230.20.0/22
• 185.241.84.0/23
• 185.242.200.0/23
• 193.8.235.0/24
• 193.42.146.0/24
• 193.246.253.0/24
• 193.247.72.0/24
• 193.247.205.0/24
• 194.152.52.0/24
• 195.14.23.0/24
• 195.144.160.0/19
• 195.226.0.0/19
• 212.45.192.0/19
• 212.55.192.0/19
• 212.117.193.0/24
• 212.117.194.0/24
• 212.117.208.0/24
• 212.117.211.0/24
• 213.158.128.0/19
• 213.189.128.0/19
• 217.14.64.0/20
• 217.75.16.0/21
• 2001:8a8::/32
• 2a03:17e0::/32
• 2a03:24e0::/48
• 2a0c:e480::/29
• 2a0e:d080::/29
• 2a10:8980::/29

Upstream networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS3303 Swisscom (Schweiz) AG
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS6730 Sunrise GmbH
• AS34019 Hivane Association
• AS48362 Stadtwerke Feldkirch
• AS24482 SG.GS
• AS9002 RETN Limited
• AS13030 Init7 (Switzerland) Ltd.

Downstream networks

• AS35712 AMAG Corporate Services AG
• AS51529 UPGREAT AG
• AS206214 Telco Pack SA
• AS50805 EBP Schweiz AG
• AS51106 ti&m AG
• AS51786 Patrick Velder
• AS43291 Achermann ict-services AG
• AS61232 redIT Services AG
• AS214060 Daetwyler IT Infra AG
• AS202451 Clue Security Services AG
• AS6732 Cyberlink AG
• AS31051 Online Travel AG
• AS43107 Waser + Co. AG
• AS209346 UMB AG
• AS206779 Hatebur Umformmaschinen AG
• AS206032 Coop Pronto AG
• AS208065 Leica Geosystems AG
• AS216381 Axians IT Services AG
• AS41632 Glarner Kantonalbank
• AS211861 netwolk GmbH
• AS201228 Anapaya Systems AG

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS3303 Swisscom (Schweiz) AG
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS6730 Sunrise GmbH
• AS35712 AMAG Corporate Services AG
• AS51529 UPGREAT AG
• AS206214 Telco Pack SA
• AS50805 EBP Schweiz AG
• AS51106 ti&m AG
• AS51786 Patrick Velder
• AS43291 Achermann ict-services AG
• AS61232 redIT Services AG
• AS214060 Daetwyler IT Infra AG
• AS34019 Hivane Association
• AS24482 SG.GS
• AS202451 Clue Security Services AG
• AS6732 Cyberlink AG
• AS43107 Waser + Co. AG
• AS31051 Online Travel AG
• AS209346 UMB AG
• AS48362 Stadtwerke Feldkirch
• AS206779 Hatebur Umformmaschinen AG
• AS206032 Coop Pronto AG

Internet exchanges

• SwissIX — Zurich, Switzerland
• Equinix Internet Exchange Zurich — Zurich, Switzerland