AS15320 — PRIMELINK

AS15320 announces 13 IPv4 prefixes covering 12,032 addresses and 0 IPv6 prefixes.

About this network

Three company names across three fields, and netnames numbered by allocation rather than address.

What it's used for

• A regional fibre carrier. Thirteen IPv4 prefixes announced from the United States, no IPv6, and two observed BGP neighbours.

Notable

• The AS handle names one company, the holder record names a second, and every registrant names a third, all versions of the same business at different points in its history.
• Netnames are the carrier's initials with a two digit counter, and each counter covers several blocks that share a range, so the numbering tracks allocations rather than routes.
• One block belongs to a state university system under a netname that simply says subnets.
• Every one of the eighteen sampled addresses answered, all in the same form: the address with dashes, the word static, and the carrier's domain.
• Twelve thousand addresses across thirteen routes.

Interesting

• Complete and uniform reverse DNS across every sampled block is rare in this range and is what a carrier's provisioning should look like. One rule, applied everywhere, generated from the address.
• Marking everything static is a business statement: these are fixed connections sold to organisations, not a consumer pool, and receivers that score mail by reverse name will treat them accordingly.
• Three names for one company across three fields is the ordinary residue of acquisition. Nothing here is wrong; it just means no single field identifies the operator on its own.

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

Announced prefixes

• 136.223.177.0/24
• 173.242.96.0/21
• 173.242.104.0/22
• 173.242.108.0/23
• 173.242.110.0/24
• 216.27.112.0/21
• 216.27.121.0/24
• 216.27.122.0/23
• 216.27.124.0/22
• 216.130.224.0/21
• 216.130.232.0/22
• 216.130.236.0/23
• 216.238.168.0/23

Upstream networks

• AS13536 FirstLight Fiber, Inc.

Downstream networks

• AS395871 SUNY College at Plattsburgh

Adjacent networks

• AS13536 FirstLight Fiber, Inc.
• AS395871 SUNY College at Plattsburgh