asn.dev

Autonomous system

AS16403 BOISE-CASCADE

Unclassified ARIN

IPv4 addresses 4.10K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Boise Cascade

United States of America · AI-generated

enterprise business infrastructure

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. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS14230ARK Data Centers LLC178
AS15305Syringa Networks, LLC177
AS3356Level 3 Parent, LLC126

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 4 prefixes · 4.10K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS16403
Registry name
BOISE-CASCADE
Registrant
Boise Cascade Corporation
Abuse contact
Myron_Blaine@bc.com
Registered
2000-04-26
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 8 valid, 0 with no ROA
ROAs
1 authorising AS16403
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
4 naming AS16403

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 443 networks and 1,784 prefixes, as published 2026-10-19. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check