AS23408 — TBI-001

AS23408 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

The AS handle TBI-001 is held by an entity with a mixed address inventory comprising Comcast and Portland Trail Blazers space.

What it's used for

• The address space carries netnames CCCH3-4 (Comcast Cable Communications, LLC) and RIO-BLAZERS-66-178-131-0-24 (Portland Trail Blazers).
• The reverse DNS sample shows cas1.ripcity.com, indicating the space supports corporate infrastructure for the Portland Trail Blazers.
• With 512 IPv4 addresses announced across 2 prefixes and only 2 observed neighbours, the low neighbour count suggests a limited peering footprint or a specific access role rather than broad transit.

Notable

• Registrants do not agree with a single announcer identity; the space includes both Comcast Cable Communications, LLC and Portland Trail Blazers.
• The address inventory is small and fragmented, consisting of two distinct /24 blocks from different original owners.

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

Announced prefixes

• 50.204.155.0/24
• 66.178.131.0/24

Upstream networks

• AS25899 LS Networks
• AS33490 Comcast Cable Communications, LLC

Adjacent networks

• AS25899 LS Networks
• AS33490 Comcast Cable Communications, LLC

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 2 ROAs.
• ASPA: none published.
• IRR: 50% of announcements registered; 1 route objects.
• Listed in as-sets: AS-COMCAST-EDIA, AS-INFOSTRUCTURE-CUSTOMERS, AS-LSNET, AS-PNW-GIGAPOP-PEERS.