AS18588 — POSTM

Network type: hosting

AS18588 announces 1 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

POSTM is the autonomous system for Postmedia Network Inc.

What it's used for

• The address space is registered under the netname POSTMEDIA-NET1, indicating internal corporate infrastructure for the media company.
• The AS announces a single IPv4 prefix, 204.187.152.0/23, totaling 512 addresses, with no IPv6 prefixes in inventory.
• With only one observed neighbour in the routing system, the network operates as a small, isolated corporate estate rather than a transit or access provider.

Notable

• The RDAP registrant Postmedia Network Inc matches the registry holder, confirming consistent ownership of the address space.
• Postmedia Network is a Canadian media company, and the AS has been observed in routing tables since 2000.
• The inventory consists of a single contiguous block, reflecting a simple and stable address allocation for internal use.

CLASSIFICATION - after the card, on its own final line, emit exactly:

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

Announced prefixes

• 204.187.152.0/23

Upstream networks

• AS19122 eStruxture Data Centers Inc.

Adjacent networks

• AS19122 eStruxture Data Centers Inc.

Internet exchanges

• Toronto Internet Exchange — Toronto, Canada