AS16623 — AHS

AS16623 announces 6 IPv4 prefixes covering 132,608 addresses and 0 IPv6 prefixes.

About this network

One name in eighteen answers, and it belongs to a different health organisation.

What it's used for

• A provincial health authority's network. Six IPv4 prefixes announced from Canada, no IPv6, one hundred and thirty-two thousand six hundred and eight addresses, through three observed BGP neighbours.

Notable

• Two blocks are enormous and the rest are small, so almost the entire announcement sits inside a single pair of allocations.
• Four blocks are registered to the holder under netnames built from the word for a network plus part of the address, at three different depths: two parts, three parts, and one that names a range of two values where the block covers only one of them.
• Two blocks are registered not to the holder but to the regional address registry itself, sharing a netname of that word and a single number.
• One block's registrant field carries two roles in capitals, abuse and technical, beside the organisation.
• One of eighteen queried addresses answered: three letters on a different health organisation's domain.

Interesting

• Registry-held blocks inside a working network are old space that was never reassigned. They route fine and belong, on paper, to nobody who operates them.
• A netname describing a wider range than its block is a label written for the allocation that was planned rather than the one that arrived.
• Another organisation's domain answering here is the shape of a merged health system: the routing consolidated long before the naming did.

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

Announced prefixes

• 139.48.0.0/16
• 142.199.0.0/16
• 198.161.2.0/23
• 198.161.4.0/24
• 198.161.12.0/23
• 198.161.231.0/24

Upstream networks

• AS15296 Cybera Inc
• AS852 TELUS Communications Inc.
• AS6327 Shaw Communications

Adjacent networks

• AS15296 Cybera Inc
• AS852 TELUS Communications Inc.
• AS6327 Shaw Communications