AS32537 — XILINX - Xilinx Incorporated

AS32537 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.

About this network

XILINX is the autonomous system for Xilinx Incorporated, a semiconductor company specializing in field-programmable gate arrays.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by reverse DNS entries such as unknown-191-255.xilinx.com and unknown-223-254.xilinx.com.
• The AS announces 65536 IPv4 addresses across 20 prefixes with 12 observed neighbours, a ratio consistent with a large internal corporate estate rather than a transit or access provider.

Notable

• All registrants in the RDAP sample are listed as Xilinx Incorporated; Hostmaster with the netname XILINX, fully agreeing with the AS handle.
• Xilinx was acquired by Advanced Micro Devices (AMD), which now operates the company as a subsidiary.
• The inventory consists of a single contiguous block (149.199.0.0/17) subdivided into 20 smaller prefixes, indicating site-by-site segmentation of the corporate network.

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

Announced prefixes

• 149.199.0.0/16

Upstream networks

• AS13335 Cloudflare, Inc.
• AS3257 GTT Communications Inc.
• AS8220 COLT Technology Services Group Limited
• AS9498 BHARTI Airtel Ltd.
• AS33651 Comcast Cable Communications, LLC
• AS393552 Longmont Power & Communications
• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC
• AS4637 Telstra Global
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS33667 Comcast Cable Communications, LLC

Adjacent networks

• AS13335 Cloudflare, Inc.
• AS3257 GTT Communications Inc.
• AS8220 COLT Technology Services Group Limited
• AS9498 BHARTI Airtel Ltd.
• AS33651 Comcast Cable Communications, LLC
• AS393552 Longmont Power & Communications
• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC
• AS4637 Telstra Global
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS33667 Comcast Cable Communications, LLC

Routing security

• RPKI: 0 valid, 0 invalid and 20 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 80% of announcements registered; 17 route objects.
• Listed in as-sets: AS-ATTAP, AS-COMCAST-EDIA, AS-GTTCUST, AS-HURRICANE, AS-IGNEMEA, AS-KDDCUSTOMER2, AS-LPCNEXTLIGHT, AS-NWN-TRANSIT, AS-RELIANCE, AS-TELSTRA-INTL-CUSTOMERS, AS-TRANSROUTE-SPEC, AS-VSNL-IN, AS10201:AS-DWL, AS13335:AS-CUSTOMERS, AS18106:AS-TRANSIT, AS18106:AS-TRANSIT, AS3491:AS-CUSTOMERS-AP, AS7473:AS-CUSTOMERS:AS3758, AS8220:AS-COLTIE, AS8220:AS-COLTSG.