AS12731 — IPHH IPHH Internet Port Hamburg GmbH

AS12731 announces 14 IPv4 prefixes covering 19,456 addresses and 5 IPv6 prefixes.

About this network

150 neighbours, and reverse DNS that names the VLAN and the physical port on the core router.

What it's used for

• Hosting, colocation and transit in Hamburg. 19,456 addresses in fourteen IPv4 prefixes, five IPv6 prefixes, and 150 observed BGP neighbours.

Notable

• The operator's own allocations run DE-IPHH-20000119, DE-IPHH-20020321 on four blocks, DE-IPHH-20130829 and DE-IPHH-20140414.
• Four customer blocks appear under their own names: HDWE Verwaltungs- und Planungs-GmbH, SupplyOn GmbH, ePages GmbH and one netname T1-MAIN.
• The IPv6 prefixes span four separate aggregates, including 2001:868::/29.
• One sampled address answered, as vlan225-ge1-0.cr1.hamburg1.iphh.net.

Interesting

• That single hostname carries four facts: VLAN 225, on GigabitEthernet port 1/0, of core router 1, in the Hamburg 1 site. Network engineers name interfaces this way so a traceroute reads as a map of the building, and the same property makes the topology legible to anyone who runs one from outside.
• 150 neighbours against 19,456 addresses is an exchange-point participant rather than an access network. A colocation business in a city with a busy exchange sells reach: the value is the number of networks a customer becomes one hop from, and that number is exactly what the neighbour count measures.
• The IPv6 holdings come from four different aggregates, one of them a /29. That mix is the registry history of an operator that has been asking for address space since the early days of the protocol and has been given a different size each time policy changed.

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

Announced prefixes

• 45.130.192.0/23
• 62.201.160.0/21
• 62.201.168.0/22
• 62.201.173.0/24
• 62.201.174.0/23
• 62.201.176.0/20
• 91.216.90.0/24
• 185.8.224.0/24
• 185.34.67.0/24
• 185.53.220.0/22
• 192.129.45.0/24
• 193.41.8.0/23
• 194.113.43.0/24
• 213.128.128.0/19
• 2001:678:2c4::/48
• 2001:868::/29
• 2a03:4240::/32
• 2a0e:57c0:800::/38
• 2a0f:f640:1::/48

Upstream networks

• AS33891 Core-Backbone GmbH
• AS6939 Hurricane Electric LLC
• AS5405 Inter.link GmbH
• AS174 Cogent Communications, LLC
• AS3223 Voxility LLP
• AS34549 meerfarbig GmbH & Co. KG
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS48185 team.blue NV
• AS48362 Stadtwerke Feldkirch
• AS212024 Marc Schmitt
• AS37721 Virtual Technologies & Solutions
• AS293 ESnet
• AS56655 Gigahost AS
• AS20485 Joint Stock Company TransTeleCom
• AS20766 Association "Gitoyen"
• AS37100 SEACOM Limited
• AS3303 Swisscom (Schweiz) AG
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS34800 Securebit AG
• AS29632 Netassist International EOOD
• AS42708 Glesys AB
• AS3320 Deutsche Telekom AG

Downstream networks

• AS60664 x-ion GmbH
• AS60926 IT-Verbund Stormarn, Anstalt des oeffentlichen Rechts
• AS21235 ADVANCED Systemhaus GmbH
• AS5401 Daniel Roesen
• AS13157 GOPAS Solutions GmbH
• AS1898 Torsten Blum
• AS209148 Securepoint GmbH
• AS50017 fux eG
• AS20144 ICANN
• AS206813 4830.org e. V.

Adjacent networks

• AS60664 x-ion GmbH
• AS33891 Core-Backbone GmbH
• AS174 Cogent Communications, LLC
• AS5405 Inter.link GmbH
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS60926 IT-Verbund Stormarn, Anstalt des oeffentlichen Rechts
• AS21235 ADVANCED Systemhaus GmbH
• AS5401 Daniel Roesen
• AS50300 CustodianDC Limited
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS42708 Glesys AB
• AS37721 Virtual Technologies & Solutions
• AS48362 Stadtwerke Feldkirch
• AS24482 SG.GS
• AS212024 Marc Schmitt
• AS3303 Swisscom (Schweiz) AG
• AS17639 Converge ICT Solutions Inc.
• AS12552 GlobalConnect AB
• AS34800 Securebit AG
• AS57463 NetIX Communications JSC
• AS37100 SEACOM Limited
• AS56655 Gigahost AS
• AS20766 Association "Gitoyen"
• AS293 ESnet

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands
• DE-CIX Hamburg — Hamburg, Germany
• Megaport Frankfurt IX — Frankfurt, Germany
• Megaport Dusseldorf IX — Düsseldorf, Germany
• Megaport Hamburg IX — Hamburg, Germany
• Megaport Berlin IX — Berlin, Germany