AS13516 — CTCA1336

AS13516 announces 1 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

The netname declares the block a DMZ, and the one address answering is a beta version of a marketing site.

What it's used for

• A hospital operator's network. 512 addresses in one IPv4 prefix, 198.160.208.0/23, two observed BGP neighbours, and no IPv6 announced.

Notable

• The block is netname CTCA-DMZ, registered to the company.
• One sampled address answers as beta.prostatepeptalk.com, a domain unrelated to the company's name.
• The AS handle is CTCA1336, initials followed by four digits.

Interesting

• A DMZ is the network between the inside and the internet, where anything the public touches lives. Saying so in the registry is honest and it is also a signpost: it tells anyone reading that everything here is by design exposed, and that whatever is worth protecting is somewhere else.
• A patient awareness campaign running as a separate domain, on the hospital's own DMZ, with a beta hostname still resolving, is how marketing sites accumulate. Each campaign gets a domain, the campaign ends, and the host record stays until somebody has a reason to remove it.
• Publishing a beta hostname is a small leak. Pre-release versions of a site are exactly what an interested party looks for, and reverse DNS hands over the name without anyone having to guess it.

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

Announced prefixes

• 198.160.208.0/23

Upstream networks

• AS209 CenturyLink Communications, LLC
• AS4181 TDS TELECOM

Adjacent networks

• AS209 CenturyLink Communications, LLC
• AS4181 TDS TELECOM