AS8422 — NETCOLOGNE

Network type: residential

AS8422 announces 33 IPv4 prefixes covering 572,160 addresses and 11 IPv6 prefixes.

About this network

NETCOLOGNE is NetCologne GmbH, the city carrier of Cologne and the surrounding Rhineland. It is one of Germany's largest municipal-utility-backed telecoms, running its own fibre, cable and DSL access network rather than reselling Deutsche Telekom's.

What it's used for

• Residential broadband and telephony across Cologne, Bonn, Leverkusen and the Rhine-Erft area, plus business connectivity and services for the region's schools and public bodies.
• The reverse DNS is decisive: subscriber addresses resolve as cable-IP-ADDR.nc.de and xdsl-IP-ADDR.nc.de across the big 78.34.0.0/15, 87.78.0.0/15 and 89.0.0.0/15 blocks.

Notable

• A genuine eyeball network of roughly 570,000 IPv4 addresses, with heavy IPv6 deployment alongside it. Addresses here overwhelmingly front households in one German metropolitan region, so they geolocate tightly to Cologne.
• Its peering footprint is unusually large for a regional carrier: it is a long-standing presence at DE-CIX and neighbouring exchanges, which is how a city network keeps local traffic local.

Interesting

• NetCologne grew out of the city's public utility company, a distinctly German model in which the municipal power and water provider also lays the fibre. That is why an operator this size exists at all in a market otherwise dominated by national incumbents.

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

Announced prefixes

• 78.34.0.0/15
• 81.173.128.0/17
• 83.138.60.0/24
• 84.44.128.0/17
• 85.197.0.0/18
• 87.78.0.0/15
• 89.0.0.0/15
• 91.199.241.0/24
• 91.220.185.0/24
• 91.225.3.0/24
• 185.20.228.0/22
• 192.109.126.0/24
• 193.16.207.0/24
• 193.23.56.0/24
• 193.26.15.0/24
• 193.27.96.0/19
• 193.29.54.0/24
• 194.8.192.0/19
• 194.15.156.0/23
• 194.39.192.0/22
• 194.50.47.0/24
• 194.50.191.0/24
• 194.213.2.0/24
• 195.14.192.0/18
• 195.36.81.0/24
• 195.36.105.0/24
• 195.137.163.0/24
• 212.8.128.0/19
• 212.66.128.0/19
• 212.117.64.0/19
• 213.160.92.0/23
• 213.168.64.0/18
• 213.196.192.0/18
• 2001:678:1210::/48
• 2001:67c:5d4::/48
• 2001:4dd0::/29
• 2a02:3f0::/32
• 2a02:f38:3::/48
• 2a03:2901::/32
• 2a0a:a540::/28
• 2a0f:e2c0::/29
• 2a10:3600::/32
• 2a10:8441:112::/48
• 2a14:2240::/29

Upstream networks

• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS9002 RETN Limited
• AS50304 Blix Solutions AS
• AS50300 CustodianDC Limited
• AS29504 Freenet Liberec, z.s.
• AS48185 team.blue NV
• AS24482 SG.GS
• AS48362 Stadtwerke Feldkirch
• AS50673 Serverius Holding B.V.
• AS212024 Marc Schmitt
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS17639 Converge ICT Solutions Inc.
• AS20485 Joint Stock Company TransTeleCom
• AS293 ESnet
• AS37100 SEACOM Limited
• AS3303 Swisscom (Schweiz) AG
• AS3741 Dimension Data
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS20766 Association "Gitoyen"

Downstream networks

• AS33984 Surfplanet GmbH
• AS12581 tops.net GmbH & Co. KG
• AS51733 BWI GmbH
• AS60209 Informationsverarbeitung Leverkusen GmbH
• AS24861 SITS Deutschland GmbH
• AS206211 DEUTZ AG
• AS203621 Kramer & Crew GmbH & Co. KG
• AS48823 Hosting.de GmbH
• AS202577 Kommunale Datenverarbeitungszentrale Rhein-Erft-Rur
• AS60997 Stadt Koeln
• AS48572 Flughafen Koeln/Bonn GmbH
• AS198703 Presse und Informationsamt der Bundesregierung
• AS215431 Universitaetsklinikum Bonn
• AS212472 Christian Stuellenberg, trading as Engelsing, Bernd und Stuellenberg, Christian GbR
• AS12579 Networks & Communications GmbH
• AS34564 Gothaer Systems GmbH
• AS34015 RheinEnergie AG
• AS208228 Gemeinnuetzige Gesellschaft der Franziskanerinnen zu Olpe mbH
• AS34457 Generali Deutschland AG
• AS197777 INSIGMA IT Engineering GmbH
• AS200777 Deutsche Welle Anstalt des Oeffentlichen Rechts
• AS206872 ControlExpert GmbH
• AS212519 WisCom Praxis- und Krankenhaus-Service GmbH
• AS44215 AI Industrial Services GmbH
• AS60063 Amprion GmbH

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC
• AS33984 Surfplanet GmbH
• AS1299 Arelion Sweden AB
• AS48823 Hosting.de GmbH
• AS174 Cogent Communications, LLC
• AS9002 RETN Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS12581 tops.net GmbH & Co. KG
• AS51733 BWI GmbH
• AS60209 Informationsverarbeitung Leverkusen GmbH
• AS50304 Blix Solutions AS
• AS24861 SITS Deutschland GmbH
• AS206211 DEUTZ AG
• AS203621 Kramer & Crew GmbH & Co. KG
• AS29504 Freenet Liberec, z.s.
• AS60997 Stadt Koeln
• AS202577 Kommunale Datenverarbeitungszentrale Rhein-Erft-Rur
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS17639 Converge ICT Solutions Inc.
• AS48572 Flughafen Koeln/Bonn GmbH
• AS212024 Marc Schmitt
• AS24482 SG.GS
• AS50673 Serverius Holding B.V.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Peering.cz — Prague, Czech Republic
• Megaport Frankfurt IX — Frankfurt, Germany
• Megaport Dusseldorf IX — Düsseldorf, Germany