asn.dev

Autonomous system

AS46435 IRON

Unclassified ARIN

IPv4 addresses 3.84K 5 prefixes
IPv6 prefixes 22 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 6 12 downstream
Flagged prefixes 0 none

Summary

Idaho Regional Optical Network

United States of America · AI-generated

isp regional fiber idaho

The AS handle is IRON and the holder is Idaho Regional Optical Network.

What it's used for

  • The address space carries regional fiber infrastructure and university connectivity, evidenced by netnames IDAHO-REGIONAL-OPTICAL-NETWORK, IDAHO-WESTNET, and UIDAHO.
  • The AS announces 4096 IPv4 addresses and 22 IPv6 prefixes, with 18 observed neighbours, indicating a regional access and transit provider serving Idaho.
  • Traffic includes subscriber eyeballs, university research and education endpoints, and regional backhaul for the Idaho fiber network.

Notable

  • Registrants for the majority of prefixes are IRON, while the 129.101.249.0/24 block is registered to the University of Idaho, reflecting a partnership or leased space arrangement.
  • The address inventory is a mix of /22 and /24 blocks, with a significant portion under the IDAHO-REGIONAL-OPTICAL-NETWORK netname, consistent with a regional ISP footprint.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Seattle Internet ExchangeSeattle, United States206.81.81.43

Transit providers

6 upstream, 12 downstream and 22 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6461Zayo Bandwidth364
AS3356Level 3 Parent, LLC290
AS6939Hurricane Electric LLC89
AS11537Internet212
AS11164Internet210
AS293ESnet2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, 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 5 prefixes · 3.84K addresses IPv6 22 prefixes

CountryNamePrefixes
USUnited States of America27

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS46435
Registry name
IRON
Registrant
IRON
Abuse contact
stolman@ironforidaho.net
Registered
2008-09-17
Last changed
2026-05-29
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
13% valid · 2 valid, 14 with no ROA
ROAs
2 authorising AS46435
ASPA
no ASPA record
IRR
100% registered · 16 of 16 announcements
Route objects
50 naming AS46435

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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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