AS16403 — BOISE-CASCADE

AS16403 announces 1 IPv4 prefixes covering 4,096 addresses and 0 IPv6 prefixes.

About this network

All four blocks share one netname, and the address baked into it is wrong for three of them.

What it's used for

• A manufacturer's network. Four IPv4 prefixes announced from the United States, no IPv6, four thousand and ninety-six addresses, through three observed BGP neighbours.

Notable

• The netname is three initials followed by the first three numbers of an address. All four blocks carry it unchanged.
• Only one of the four actually begins at that address. The other three start elsewhere in the same range, so for them the netname names a neighbour rather than themselves.
• The four blocks are four different sizes and sit adjacent to one another, which is one allocation carved up and registered four times.
• The holder field ends the company name with one word for a corporate entity; the registrant on every block ends it with a different one.
• Each block lists the company and nothing else. There is no abuse role and no technical contact.
• Twelve addresses were queried for reverse DNS and none returned a name.

Interesting

• Encoding an address into a netname works exactly once. The moment the block is subdivided, the label stops describing the thing it is attached to, and the registry has no reason to notice.
• Four thousand addresses, three upstreams and nothing in reverse DNS is a company network that faces its own offices. The routing is redundant because the business depends on it; the naming is absent because nobody outside needs to resolve it.

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

Announced prefixes

• 204.99.192.0/20

Upstream networks

• AS14230 ARK Data Centers LLC
• AS15305 Syringa Networks, LLC
• AS3356 Level 3 Parent, LLC

Adjacent networks

• AS14230 ARK Data Centers LLC
• AS15305 Syringa Networks, LLC
• AS3356 Level 3 Parent, LLC