AS26405 — HDCS

AS26405 announces 11 IPv4 prefixes covering 4,352 addresses and 0 IPv6 prefixes.

About this network

The AS handle HDCS is held by Horizon Data Solutions, LLC.

What it's used for

• The address space carries customer infrastructure, evidenced by reverse DNS entries like cust-67-211-56-128.dllstx01.corexchange.com and netnames such as ZC38-BLOCK11 and HDCS-NET1.
• The AS announces 4352 IPv4 addresses across 11 prefixes with only 2 observed neighbours, a ratio that indicates a hosting or colocation provider rather than a transit carrier.

Notable

• Registrants are split between Horizon Data Solutions, LLC and zColo, with zColo holding the majority of the larger blocks including 67.211.56.0/23 and 74.124.18.0/23.
• The inventory consists of 11 IPv4 prefixes with no IPv6 announcements, showing a purely IPv4-focused estate.

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

Announced prefixes

• 8.40.242.0/23
• 67.211.49.0/24
• 67.211.53.0/24
• 67.211.56.0/23
• 74.124.18.0/23
• 74.124.26.0/23
• 108.166.182.0/24
• 199.36.136.0/23
• 199.36.141.0/24
• 199.36.142.0/23
• 209.105.247.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS13767 DataBank Holdings, Ltd.

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS13767 DataBank Holdings, Ltd.