asn.dev

Autonomous system

AS46259 CTDN-AS

Unclassified ARIN

IPv4 addresses 512 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Donor Network West

United States of America · AI-generated

business nonprofit healthcare internal

CTDN-AS is held by Donor Network West.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by reverse DNS records pointing to dnwest.org and netnames IT-162-250-134-0 and IT-216-211-169-0.
  • The AS announces 512 IPv4 addresses across 2 prefixes with 4 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
  • Traffic from this AS consists of office workers and administrative endpoints for a nonprofit organ procurement organization serving northern California and Nevada.

Notable

  • Registrants for both announced prefixes are listed as Donor Network West, matching the AS holder.
  • The address inventory is finely subdivided into two /24 blocks, consistent with an internal corporate estate segmented by site or function.

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

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC57
AS14127Iland Internet Solutions Corporation38
AS6461Zayo Bandwidth23
AS7018AT&T Enterprises, LLC4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-29, 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 2 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS46259
Registry name
CTDN-AS
Registrant
Donor Network West
Abuse contact
rwalker@dnwest.org
Registered
2011-04-22
Last changed
2011-04-22
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS46259
ASPA
no ASPA record
IRR
0% registered · 0 of 2 announcements 2 other origin
Route objects
0 naming AS46259

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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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