asn.dev

Autonomous system

AS21595 BAXTER

Unclassified ARIN

IPv4 addresses 11.52K 30 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 6 0 downstream
Flagged prefixes 0 none

Summary

Baxter Healthcare

United States of America · AI-generated

business healthcare corporate internal

The AS handle BAXTER is held by Baxter Healthcare Corporation.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by netnames such as BAXTER3, BAXTER-2BLK, and BAXTER-BLK registered to Baxter Healthcare Corporation.
  • The AS announces 11,520 IPv4 addresses across 30 prefixes while maintaining only 6 observed neighbours, a ratio indicative of an internal corporate estate with site-by-site segmentation rather than an access or transit network.

Notable

  • All registrants in the provided sample agree with the announcer, consistently listing Baxter Healthcare Corporation as the holder.
  • The address inventory is finely subdivided into /22, /23, and /24 blocks, reflecting a structured internal allocation for a large multinational healthcare organization.

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

6 upstream, 0 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8220COLT Technology Services Group Limited657
AS15695Expereo International BV514
AS3356Level 3 Parent, LLC439
AS701Verizon Business389
AS702Verizon Business265
AS2914NTT America, Inc.132

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 30 prefixes · 11.52K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America30

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS21595
Registry name
BAXTER
Registrant
Baxter Healthcare
Abuse contact
nobody@example.com
Registered
2001-05-30
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 41 with no ROA
ROAs
0 authorising AS21595
ASPA
no ASPA record
IRR
95% registered · 39 of 41 announcements
Route objects
73 naming AS21595

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 1,773 prefixes, as published 2026-10-13. 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