AS25660 — CTC

AS25660 announces 12 IPv4 prefixes covering 12,544 addresses and 1 IPv6 prefixes.

About this network

The AS handle CTC is operated by Fidium.

What it's used for

• The address space carries a mix of business and residential traffic, evidenced by reverse DNS entries such as ip.ctc.biz and dhcp-206-221-155-254.ip.coxcomm.net.
• With 12,544 IPv4 addresses announced across 15 prefixes and only 2 observed neighbours, the network functions as an access or hosting provider rather than a transit carrier.

Notable

• Registrants are largely consistent with the announcer, with most prefixes registered to Fidium under netnames like CTC-NET and CTC-NET-4, though some blocks are registered to third parties such as Wolfram Research, Inc. and Hendrick Dorms.
• The inventory is finely subdivided into multiple /22, /23, and /24 blocks, suggesting internal segmentation for different customer segments or services.

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

Announced prefixes

• 64.198.221.0/24
• 104.193.76.0/22
• 140.177.16.0/23
• 192.241.48.0/22
• 192.241.52.0/23
• 192.241.55.0/24
• 192.241.56.0/22
• 192.241.60.0/23
• 192.241.63.0/24
• 204.11.72.0/21
• 206.221.144.0/20
• 208.92.196.0/22
• 2607:f7e0::/32

Upstream networks

• AS5742 Fidium

Downstream networks

• AS393635 Area-Wide Technologies, Inc

Adjacent networks

• AS5742 Fidium
• AS393635 Area-Wide Technologies, Inc