AS21595 — BAXTER - Baxter Healthcare

AS21595 announces 30 IPv4 prefixes covering 11,520 addresses and 0 IPv6 prefixes.

About this network

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.

Announced prefixes

• 159.198.195.0/24
• 167.83.116.0/22
• 167.83.121.0/24
• 167.83.122.0/24
• 167.83.125.0/24
• 167.83.126.0/24
• 167.83.134.0/23
• 167.83.138.0/23
• 167.83.161.0/24
• 167.83.162.0/24
• 167.83.174.0/23
• 167.83.198.0/23
• 167.83.201.0/24
• 167.83.202.0/24
• 198.89.136.0/24
• 198.89.138.0/23
• 198.89.147.0/24
• 198.89.148.0/24
• 198.89.153.0/24
• 198.89.154.0/24
• 198.89.157.0/24
• 198.89.158.0/24
• 198.89.198.0/23
• 198.89.208.0/24
• 198.89.213.0/24
• 198.89.214.0/23
• 198.89.216.0/24
• 198.89.218.0/23
• 198.89.220.0/22
• 198.89.224.0/23

Upstream networks

• AS8220 COLT Technology Services Group Limited
• AS15695 Expereo International BV
• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS702 Verizon Business
• AS2914 NTT America, Inc.

Adjacent networks

• AS8220 COLT Technology Services Group Limited
• AS15695 Expereo International BV
• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS702 Verizon Business
• AS2914 NTT America, Inc.

Routing security

• RPKI: 0 valid, 0 invalid and 41 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 66% of announcements registered; 73 route objects.
• Listed in as-sets: AS-BNET, AS-BTELEKOM, AS-CONCERTJP, AS-CTBC-CUSTOMERS16, AS-EXPEREO, AS-GLOBEINTERNET-CLIENTS, AS-GLOBEINTERNET-CLIENTS, AS-IIJ, AS-IIJ6, AS-KDDCUSTOMER2, AS-OPTUS, AS-TELSTRA-INTL-CUSTOMERS, AS-TRANSROUTE-SPEC, AS-TTNET, AS2497:AS-IIJ, AS2497:AS-IIJ6, AS2764:AS-CUSTOMERS:AS9335, AS2914:AS-ASIA, AS2914:AS-ASIA-V6, AS3491:AS-CUSTOMERS-AP, AS6421:AS-ALL, AS7473:AS-CUSTOMERS:AS703, AS8220:AS-COLTAT, AS8220:AS-COLTDE, AS8220:AS-COLTNL.