AS20224 — COLUMBIA-ENERGY-LLC

AS20224 announces 7 IPv4 prefixes covering 5,120 addresses and 1 IPv6 prefixes.

About this network

The AS handle COLUMBIA-ENERGY-LLC is held by Columbia Energy L.L.C.

What it's used for

• The address space carries corporate infrastructure for an energy company, evidenced by registrant names like Columbia Energy L.L.C and netnames such as CEL-54 and NOANET-BLK2-CEL54-2.
• The network announces 5120 IPv4 addresses across 7 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating an internal corporate estate rather than a transit or access provider.

Notable

• Registrants largely align with the announcer, with most prefixes registered to Columbia Energy L.L.C, though one prefix (64.146.230.0/24) is registered to Northwest Open Access Network; DNS and IP Role Account.
• The address inventory is finely subdivided into multiple smaller blocks, consistent with site-by-site segmentation for a large corporate entity.

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

Announced prefixes

• 64.146.146.0/24
• 64.146.170.0/23
• 64.146.176.0/22
• 64.146.230.0/24
• 147.160.32.0/21
• 162.120.22.0/23
• 162.250.178.0/23
• 2001:5e0:20::/48

Upstream networks

• AS16713 Northwest Open Access Network

Adjacent networks

• AS16713 Northwest Open Access Network

Routing security

• RPKI: 5 valid, 0 invalid and 3 not-found announcements; 5 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 13 route objects.
• Listed in as-sets: AS-63529-AS-IMPORT-AS6939, AS-AXNE, AS-COMCAST-EDIA, AS-HURRICANE, AS-HURRICANEV6, AS-NOANET-PEERING, AS-PNAPBSN, AS-TRANSROUTE-SPEC, AS-WAVE-CUSTOMERS, AS-XO-B.