AS15576 — NTS NTS workspace AG

AS15576 announces 38 IPv4 prefixes covering 46,592 addresses and 12 IPv6 prefixes.

About this network

Every reverse name carries this network's own AS number as one of its labels.

What it's used for

• A provider carrying its own customers and other companies' ranges. Thirty-eight IPv4 prefixes and twenty-seven IPv6 prefixes announced from Switzerland, forty-seven thousand addresses, across six hundred and forty-four observed BGP neighbours.

Notable

• All three answering addresses end their names with this network's own AS number followed by the company domain, so the routing identifier is part of the hostname.
• The names in front of that carry an interface identifier, a router number, a site code, a country code and a service label, read right to left from the widest scope inward.
• Blocks come from five differently named companies, each keeping its own netname prefix, alongside one block the registry lists as managed with no registrant at all.
• Most netnames end in an allocation date; one carries nine digits where the rest carry eight.
• Eighteen addresses were queried for reverse DNS and three returned a name.

Interesting

• Putting the AS number in every hostname means a traceroute identifies the operator without a single lookup, which is the most useful thing a reverse name can do and one of the rarest.
• Six hundred and forty-four neighbours is an enormous count for forty-seven thousand addresses. The network is worth far more as a meeting point than as a place to put servers.
• Five company names in the netnames, each with its own date, reads as a provider assembled from smaller ones without ever renaming what it bought.

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

Announced prefixes

• 77.95.120.0/21
• 85.118.216.0/21
• 87.237.168.0/21
• 88.214.4.0/22
• 91.198.79.0/24
• 91.199.198.0/24
• 94.126.248.0/21
• 94.176.192.0/23
• 185.63.148.0/24
• 185.75.152.0/22
• 185.79.200.0/22
• 185.98.152.0/22
• 185.187.120.0/23
• 185.218.240.0/22
• 185.253.192.0/23
• 185.254.76.0/22
• 188.92.224.0/21
• 193.17.76.0/24
• 193.43.27.0/24
• 193.43.183.0/24
• 193.47.103.0/24
• 193.47.190.0/24
• 193.104.116.0/24
• 193.138.212.0/22
• 193.200.157.0/24
• 193.222.138.0/24
• 194.11.160.0/24
• 194.153.94.0/24
• 194.176.116.0/24
• 195.137.172.0/24
• 195.189.252.0/23
• 195.216.227.0/24
• 203.56.114.0/23
• 212.103.64.0/19
• 217.11.208.0/20
• 217.68.224.0/20
• 217.146.160.0/20
• 217.197.128.0/21
• 2001:67c:168::/48
• 2001:67c:66c::/48
• 2001:67c:18c4::/48
• 2a00:c38::/32
• 2a01:a480::/32
• 2a02:ce40::/32
• 2a03:580::/32
• 2a03:4ae0::/32
• 2a03:5e20::/32
• 2a06:5100::/29
• 2a0b:9e80::/36
• 2a14:3e44::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS8220 COLT Technology Services Group Limited
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS1836 green.ch AG
• AS213241 TECHIT.BE SRL
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS34019 Hivane Association
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS3303 Swisscom (Schweiz) AG
• AS3216 PJSC "Vimpelcom"
• AS37100 SEACOM Limited
• AS293 ESnet
• AS12552 GlobalConnect AB
• AS50673 Serverius Holding B.V.
• AS34927 iFog GmbH
• AS12779 IT.Gate S.p.A.
• AS48362 Stadtwerke Feldkirch
• AS17639 Converge ICT Solutions Inc.
• AS25091 IP-Max SA
• AS9002 RETN Limited
• AS1103 SURF B.V.

Downstream networks

• AS21232 Genossenschaft GGA Maur
• AS47617 Wagner AG Informatik Dienstleistungen
• AS47176 GAS&COM AG
• AS201134 Bucher + Suter AG
• AS203434 Open Circle AG
• AS43800 NTS workspace AG
• AS25353 BAR Informatik AG
• AS44879 Zentrale Informatikdienste ZID Kanton Basel-Landschaft
• AS39265 Stadtverwaltung der Stadt Bern
• AS206616 wwcom AG
• AS25563 Multimedia Networks AG
• AS15716 Adfinis AG
• AS43906 NTS Colocation AG
• AS62512 Sandwich Internet Corp.
• AS198385 AlpineDC SA
• AS198951 BLS AG
• AS33845 Swiss Federation represented by FOITT
• AS8758 Iway AG
• AS198326 OrtCloud GmbH
• AS34578 Bedag Informatik AG
• AS202714 Aarenet AG
• AS200544 AFCSO
• AS201416 Gebaeudeversicherung Bern (GVB)
• AS35635 Net Jump GmbH
• AS34288 Kantonsschule Zug

Adjacent networks

• AS8220 COLT Technology Services Group Limited
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS47176 GAS&COM AG
• AS6939 Hurricane Electric LLC
• AS21232 Genossenschaft GGA Maur
• AS47617 Wagner AG Informatik Dienstleistungen
• AS198385 AlpineDC SA
• AS201134 Bucher + Suter AG
• AS37721 Virtual Technologies & Solutions
• AS213241 TECHIT.BE SRL
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS203434 Open Circle AG
• AS48185 team.blue NV
• AS43800 NTS workspace AG
• AS25353 BAR Informatik AG
• AS50300 CustodianDC Limited
• AS3303 Swisscom (Schweiz) AG
• AS44879 Zentrale Informatikdienste ZID Kanton Basel-Landschaft
• AS39265 Stadtverwaltung der Stadt Bern
• AS206616 wwcom AG
• AS61287 onway (Schweiz) AG
• AS50673 Serverius Holding B.V.
• AS8758 Iway AG
• AS25563 Multimedia Networks AG

Routing security

• RPKI: 56 valid, 0 invalid and 0 not-found announcements; 68 ROAs.
• ASPA: 3 authorised providers.
• IRR: 96% of announcements registered; 65 route objects.
• Listed in as-sets: AS-BIX, AS-BIX-V6, AS-CIXP-RS-AS57859, AS-FINECOM-PEERS-SWISSIX, AS-GREEN-PEERS, AS-LIECOMTEL-PEERS, AS-TELECOM-PEERS, AS-TELENORDK, AS-UNGLEICH-UPSTREAM, AS-VIX-MEMBERS, AS15576:AS-CUSTOMER, AS15576:AS-NTS, AS15716:AS-TRANSIT, AS210861:AS-TRANSIT, AS29075:AS-CUSTOMERS, AS29097:AS-HOSTPOINT-SWISSIX-PEERS, AS3303:AS-SWCMPEERS, AS39040:AS-TRANSIT, AS42476:AS-SWISSIX-CONNECTED, AS47176:AS-TRANSIT, AS6777:AS-AMS-IX-RS, AS6777:AS-AMS-IX-RS-V6, AS680:AS-AMSIX-RS-PEERS, AS8821:AS-PEERS.

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands
• SwissIX — Zurich, Switzerland
• Vienna Internet Exchange — Vienna, Austria
• Budapest Internet Exchange — Budapest, Hungary
• CERN IXP / Equinix Internet Exchange Geneva — Geneva, Switzerland
• RomandIX — Lausanne, Switzerland