AS8821 — TELEZUG WWZ Telekom AG TELEZUG

Network type: residential

AS8821 announces 9 IPv4 prefixes covering 108,544 addresses and 3 IPv6 prefixes.

About this network

TELEZUG is WWZ Telekom AG, the telecom arm of Wasserwerke Zug — the municipal utility of the Swiss canton of Zug. It is one of Switzerland's larger cable-network operators and a partner in the Quickline association, selling Internet, TV and telephony to households and businesses in Zug and the neighbouring cantons under the long-running DataZug brand.

What it's used for

Residential and business access over a hybrid fibre-coax plant. The reverse DNS is unambiguous: sampled addresses in 82.136.64.0/18 resolve to pub082136064100.dh-hfc.datazug.ch — a dynamic-host (dh) pool on the HFC cable network, with the subscriber's address encoded in the hostname. Another sample lands on hsrp-50-dzpr210-211-zg.datazug.net, an HSRP router-redundancy interface on a Zug aggregation router. Subscriber pools plus the routers that serve them.

Notable

• Roughly 108k IPv4 addresses across only nine prefixes, plus IPv6 — a compact allocation for a network covering several cantons.
• 143 observed BGP neighbours is unusually high for an operator this size. That reflects Swiss peering density and the Quickline partner interconnects rather than a wholesale transit business; the address space itself is eyeball space.

Interesting

A water and electricity utility that became a serious ISP is a distinctly European pattern: the municipal works already owned the trenches, so laying coax — and later fibre — alongside the mains was the cheap move. The datazug.ch domain has carried Zug's Internet since the 1990s, and the AS has been visible in BGP since at least August 2000.

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

Announced prefixes

• 62.171.0.0/17
• 77.245.176.0/20
• 82.136.64.0/18
• 151.248.128.0/17
• 158.181.96.0/19
• 185.42.244.0/22
• 185.244.112.0/22
• 212.4.64.0/19
• 217.194.48.0/20
• 2a01:760::/29
• 2a01:8b80::/29
• 2a03:62a0:4101::/48

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS15600 Quickline AG
• AS34549 meerfarbig GmbH & Co. KG
• AS6730 Sunrise GmbH
• AS212024 Marc Schmitt
• AS48362 Stadtwerke Feldkirch
• AS24482 SG.GS
• AS50673 Serverius Holding B.V.
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS20766 Association "Gitoyen"
• AS37100 SEACOM Limited
• AS293 ESnet
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS12779 IT.Gate S.p.A.
• AS20485 Joint Stock Company TransTeleCom
• AS56655 Gigahost AS
• AS29632 Netassist International EOOD
• AS213241 TECHIT.BE SRL
• AS56662 Marcin Gondek
• AS34927 iFog GmbH

Downstream networks

• AS35518 sasag Kabelkommunikation AG
• AS41294 Zuger Kantonalbank
• AS12750 SOFTEC AG
• AS202240 Innflow AG
• AS208950 Ezpada s.r.o

Adjacent networks

• AS35518 sasag Kabelkommunikation AG
• AS15600 Quickline AG
• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS41294 Zuger Kantonalbank
• AS12750 SOFTEC AG
• AS202240 Innflow AG
• AS6730 Sunrise GmbH
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS37721 Virtual Technologies & Solutions
• AS57463 NetIX Communications JSC
• AS20766 Association "Gitoyen"
• AS212024 Marc Schmitt
• AS48185 team.blue NV
• AS50300 CustodianDC Limited
• AS208950 Ezpada s.r.o
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS20485 Joint Stock Company TransTeleCom
• AS50673 Serverius Holding B.V.
• AS29632 Netassist International EOOD
• AS48362 Stadtwerke Feldkirch
• AS37100 SEACOM Limited
• AS293 ESnet

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands
• SwissIX — Zurich, Switzerland