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Autonomous System details for AS30264

AS30264

Columbia Power and Water Systems • cpws.com

AS30264 — Columbia Power and Water Systems

AS Name

COLUMBIAPWS

Country

United States (US)

Website

cpws.com

Number of IPv4

28,160

Number of IPv6

ASN type

Business

Status

Assigned

Registry

ARIN

Allocated

August 22, 2003

Last updated

January 16, 2026

IP Ranges

45 IPv4 prefixes

Prefix	Company	Number of IPs
66.211.16.0/20	Columbia Power and Water Systems	4,096
66.211.16.0/22	Columbia Power and Water Systems	1,024
66.211.18.0/24	Columbia Power and Water Systems	256
66.211.19.0/24	Columbia Power and Water Systems	256
66.211.20.0/22	Columbia Power and Water Systems	1,024
66.211.20.0/24	Columbia Power and Water Systems	256
66.211.21.0/24	Columbia Power and Water Systems	256
66.211.22.0/24	Columbia Power and Water Systems	256
66.211.24.0/22	Columbia Power and Water Systems	1,024
66.211.24.0/24	Columbia Power and Water Systems	256
66.211.25.0/24	Columbia Power and Water Systems	256
66.211.26.0/24	Columbia Power and Water Systems	256
66.211.27.0/24	Columbia Power and Water Systems	256
66.211.28.0/22	Columbia Power and Water Systems	1,024
66.211.28.0/24	Columbia Power and Water Systems	256
66.211.29.0/24	Columbia Power and Water Systems	256
76.9.160.0/20	Columbia Power and Water Systems	4,096
76.9.160.0/22	Columbia Power and Water Systems	1,024
76.9.160.0/24	Columbia Power and Water Systems	256
76.9.161.0/24	Columbia Power and Water Systems	256
76.9.162.0/24	Columbia Power and Water Systems	256
76.9.163.0/24	Columbia Power and Water Systems	256
76.9.164.0/22	Columbia Power and Water Systems	1,024
76.9.165.0/24	Columbia Power and Water Systems	256
76.9.166.0/24	Columbia Power and Water Systems	256
76.9.167.0/24	Columbia Power and Water Systems	256
76.9.168.0/22	Columbia Power and Water Systems	1,024
76.9.168.0/24	Columbia Power and Water Systems	256
76.9.169.0/24	Columbia Power and Water Systems	256
76.9.170.0/24	Columbia Power and Water Systems	256
76.9.172.0/22	Columbia Power and Water Systems	1,024
76.9.172.0/24	Columbia Power and Water Systems	256
76.9.173.0/24	Columbia Power and Water Systems	256
76.9.174.0/24	Columbia Power and Water Systems	256
138.43.210.0/23	Columbia Power and Water Systems	512
138.43.212.0/22	Columbia Power and Water Systems	1,024
138.43.213.0/24	Columbia Power and Water Systems	256
138.43.214.0/24	Columbia Power and Water Systems	256
138.43.215.0/24	Columbia Power and Water Systems	256
138.43.216.0/21	Columbia Power and Water Systems	2,048
138.43.216.0/24	Columbia Power and Water Systems	256
138.43.220.0/24	Columbia Power and Water Systems	256
138.43.221.0/24	Columbia Power and Water Systems	256
138.43.222.0/24	Columbia Power and Water Systems	256
138.43.223.0/24	Columbia Power and Water Systems	256

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS30264

1 peers

AS286

AS30264 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS30264

2 upstreams

AS3257 AS21766

AS30264 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS30264 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS30264

1 downstreams

AS36015

AS30264 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.