AS14606 — CCCFIBER

AS14606 announces 3 IPv4 prefixes covering 2,560 addresses and 0 IPv6 prefixes.

About this network

It runs its own AS and does not hold a single one of the addresses it announces.

What it's used for

• A fibre ISP's network. 2,560 addresses across three IPv4 prefixes, with two observed BGP neighbours and no IPv6 announced.

Notable

• All three blocks are registered to Cogent Communications, LLC, under the netnames COGENT-154-27-16 and COGENT-A.
• Nine addresses were queried for reverse DNS and none returned a name.
• The AS is filed under the handle CCCFIBER.

Interesting

• Running your own AS while announcing entirely borrowed space is a specific position: the operator wants control over routing policy but has not justified an allocation of its own to a registry. It works, and the cost is that every address the company's customers use can be reclaimed by the provider if the relationship ends.
• Renumbering an ISP's customers is the nightmare that address ownership exists to prevent, which is why most providers eventually apply for their own space. This one has not, and with two upstreams it is only half-committed to independence.
• The netnames tell you which carrier without any further lookup. That provider's generic customer label appears on thousands of records across the internet and is one of the most common strings in the whole registry.
• Nothing published in reverse DNS, so the subscribers behind these addresses are anonymous by default.

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

Announced prefixes

• 38.123.8.0/24
• 38.123.11.0/24
• 154.27.96.0/21

Upstream networks

• AS46208 Peninsula Fiber Network, LLC
• AS174 Cogent Communications, LLC

Adjacent networks

• AS46208 Peninsula Fiber Network, LLC
• AS174 Cogent Communications, LLC