AS21660 — BAXALTA

AS21660 announces 7 IPv4 prefixes covering 4,352 addresses and 0 IPv6 prefixes.

About this network

The AS handle BAXALTA is operated by Baxalta Incorporated.

What it's used for

• The address space carries corporate infrastructure for a pharmaceutical company, evidenced by netnames such as US-BAXALTA-20150225, BAXALTA-AP, and BAXALTA-IPV4.
• The inventory consists of 7 IPv4 prefixes covering 4352 addresses, with 6 observed routing neighbours, indicating a small internal corporate estate rather than a transit or access network.

Notable

• Registrants largely align with the announcer, including Baxalta Incorporated and BAXALTA US INC, though one prefix (63.244.0.0/22) is registered to Millennium Pharmaceuticals, Inc. under the netname MPINET.
• Baxalta completed a combination with Shire plc in 2016, creating a global pharmaceutical entity that subsequently became part of Takeda.
• The address inventory is finely subdivided into seven distinct prefixes, consistent with site-by-site segmentation for a large corporation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 43.229.156.0/23
• 43.229.158.0/24
• 63.84.72.0/22
• 63.244.0.0/22
• 103.48.172.0/24
• 104.254.253.0/24
• 185.89.148.0/22

Upstream networks

• AS209 CenturyLink Communications, LLC
• AS8220 COLT Technology Services Group Limited
• AS139883 SPTEL PTE. LTD.
• AS8437 Hutchison Drei Austria GmbH
• AS3356 Level 3 Parent, LLC
• AS398811 Equinix, Inc.

Adjacent networks

• AS209 CenturyLink Communications, LLC
• AS8220 COLT Technology Services Group Limited
• AS139883 SPTEL PTE. LTD.
• AS8437 Hutchison Drei Austria GmbH
• AS3356 Level 3 Parent, LLC
• AS398811 Equinix, Inc.