AS20224 Columbia Energy L.L.C

COLUMBIA-ENERGY-LLC - Columbia Energy L.L.C · registered in the United States

IPv4 addresses5,1207 prefixes · <0.001% of announced IPv4

Rank in United States#4,064largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#13,530of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS20224 in ASN lookup Look up an IP in this network (64.146.146.1) All networks in United States

IPv4 prefixes

All 7 prefixes, in address order.

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

IPv6 prefixes

All 1 prefix.

2001:5e0:20::/48

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources