AS15372 — IBH-AS

AS15372 announces 10 IPv4 prefixes covering 11,520 addresses and 2 IPv6 prefixes.

About this network

The same netname prefix carries dates on some blocks and addresses on others.

What it's used for

• An information technology services provider. Nine IPv4 prefixes and two IPv6 prefixes announced from Germany, eleven thousand addresses, across sixteen observed BGP neighbours.

Notable

• Four blocks share a netname prefix built from the country code and the company name. Two of them end in an allocation date; two end in the block's own address digits run together with no separators.
• Two blocks belong to a research society and carry a netname containing the word intranet, applied to space that is announced to the public internet.
• Two more use registry organisation identifiers as their netname, which is a database key rather than a name.
• One block's registry lookup failed, so nothing can be said about who holds it.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• One prefix scheme with two different suffix rules is what happens when a convention outlives the person who invented it. Later entries follow the shape without knowing the rule.
• Calling a routed block an intranet is a label from the inside. It says how the operator thinks of the space, not how the internet reaches it.
• Sixteen neighbours for eleven thousand addresses is a well connected provider that hosts other organisations' networks alongside its own.

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

Announced prefixes

• 91.90.167.0/24
• 141.76.202.0/24
• 153.96.101.0/24
• 153.96.230.0/24
• 176.111.245.0/24
• 188.239.188.0/23
• 193.36.120.0/22
• 193.176.146.0/24
• 195.248.83.0/24
• 212.111.224.0/19
• 2001:67c:12b8::/48
• 2a01:7700::/32

Upstream networks

• AS9136 Wobcom GmbH
• AS21413 Envia Tel GmbH
• AS13237 euNetworks GmbH
• AS3320 Deutsche Telekom AG
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS24482 SG.GS

Downstream networks

• AS203592 CLOUD & HEAT Technologies GmbH
• AS11528 Photronics Inc.
• AS215556 Dresden-IT GmbH
• AS208508 Landeshauptstadt Dresden, EB IT Dienstleistungen Dresden

Adjacent networks

• AS21413 Envia Tel GmbH
• AS9136 Wobcom GmbH
• AS13237 euNetworks GmbH
• AS3320 Deutsche Telekom AG
• AS203592 CLOUD & HEAT Technologies GmbH
• AS6939 Hurricane Electric LLC
• AS11528 Photronics Inc.
• AS215556 Dresden-IT GmbH
• AS174 Cogent Communications, LLC
• AS208508 Landeshauptstadt Dresden, EB IT Dienstleistungen Dresden
• AS24482 SG.GS
• AS8218 Zayo Infrastructure France SA

Internet exchanges

• Berlin Commercial Internet Exchange — Berlin, Germany
• EuroGIX — Strasbourg, France
• Dresden Internet Exchange — Dresden, Germany