AS15015 — SGC

AS15015 announces 2 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

Two blocks, one upstream, and a first-seen date that is genuinely early.

What it's used for

• A small communications provider's network. Two IPv4 /23 blocks announced from the United States, no IPv6, and one observed BGP neighbour.

Notable

• Both blocks are registered to the holder, under the netnames SPRING-GROVE-01 and SPRING-GROVE-02.
• The AS handle is SGC, an initialism, while the netnames spell the name out in full.
• The routing history begins in 2001, on an actual observed date rather than the floor of the archive that most records in this range carry.
• Six addresses were queried for reverse DNS and none returned a name.

Interesting

• A single upstream is the thing to notice. An autonomous system exists so a network can speak for itself in routing, and with one neighbour there is no second path for it to choose between. The number here is buying independence from the carrier's addressing rather than resilience.
• The two blocks sit close together but are not adjacent, so they were assigned separately rather than as one range that was later split.
• The zero-padded counters on the netnames say the operator expected more blocks than it got. Two digits leaves room for ninety-eight more.
• A real early date is worth more than it looks. Most first-seen values in this range are the moment the archive started collecting, which says nothing about the network; this one is a genuine observation of the network appearing.

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

Announced prefixes

• 69.173.166.0/23
• 69.173.168.0/23

Upstream networks

• AS398563 MiBroadband, LLC

Adjacent networks

• AS398563 MiBroadband, LLC