AS15486 — MATERNA-AS

AS15486 announces 7 IPv4 prefixes covering 4,096 addresses and 0 IPv6 prefixes.

About this network

Six fragments of an old large block, adding up with one newer prefix to exactly four thousand addresses.

What it's used for

• An information technology services company. Seven IPv4 prefixes announced from Germany, no IPv6, four thousand addresses, through two observed BGP neighbours.

Notable

• Six of the seven blocks are small pieces cut from one older range, two /23 prefixes and four /24 prefixes scattered through it with gaps between them.
• The seventh is a /21 from elsewhere and holds half the company's total address space on its own.
• The /21 carries its own netname; the six fragments all share a different one, so the two holdings were recorded in separate eras of registry practice.
• Every block lists the company and an abuse role, with no variation across the seven.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• The seven pieces total exactly four thousand and ninety-six addresses, which is a coincidence of arithmetic rather than planning: two halves of a /21 worth of fragments plus a whole /21.
• Announcing four separate /24 prefixes out of one range costs four routing table entries worldwide for a thousand addresses. The gaps between them are the reason, and the gaps belong to somebody else.
• No IPv6 at all from a company that sells communications services is the gap most worth naming here.

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

Announced prefixes

• 139.2.0.0/23
• 139.2.4.0/24
• 139.2.6.0/24
• 139.2.8.0/24
• 139.2.33.0/24
• 139.2.126.0/23
• 193.96.112.0/21

Upstream networks

• AS13237 euNetworks GmbH
• AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH

Adjacent networks

• AS13237 euNetworks GmbH
• AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH