AS23087 — CDG - Communications Data Group

AS23087 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

The AS handle CDG is held by Communications Data Group.

What it's used for

• The address space carries a single /24 block with the netname ATT and registrant AT&T Enterprises, LLC, indicating legacy or leased infrastructure space.
• The AS announces 256 IPv4 addresses across 1 prefix and maintains 1 observed neighbour, a ratio consistent with a small, isolated business or internal network rather than a transit provider.

Notable

• The RDAP registrant AT&T Enterprises, LLC differs from the AS holder Communications Data Group, suggesting the address space is leased or was acquired from AT&T.
• Communications Data Group is a provider of OSS/BSS software for telecommunications carriers, and this AS likely supports its internal operations or specific client deployments.
• The inventory consists of a single contiguous IPv4 block with no IPv6 prefixes announced.

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

Announced prefixes

• 12.31.127.0/24

Upstream networks

• AS18671 PRTC

Adjacent networks

• AS18671 PRTC

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-PRTC-TRANSIT, AS-WINDSTREAM-CUST, AS18671:AS-CUSTOMERS, AS26744:AS-CUSTOMERS, AS26744:AS-CUSTOMERS:AS18671.