AS18721 — ACDLABS-AS

AS18721 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

ACDLABS-AS is operated by ACD/Labs.

What it's used for

• The space carries corporate infrastructure, evidenced by reverse DNS entries such as vm-vanessa.acdlabs.com, tor-dhcp-127.acdlabs.com, and tor-vpn-190.acdlabs.com.
• The AS announces 256 IPv4 addresses across 1 prefix with 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

• The RDAP registrant ACD/Labs matches the AS holder name exactly.
• The address inventory consists of a single /24 block, consistent with a dedicated corporate estate.

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

Announced prefixes

• 204.153.135.0/24

Upstream networks

• AS13768 Aptum Technologies

Adjacent networks

• AS13768 Aptum Technologies

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-TAIPAN-CPOC-8, AS13768:AS-CUSTOMERS.