AS7809 SYNOPSYS

SYNOPSYS is the corporate network of Synopsys, Inc., the electronic design

automation company headquartered in Sunnyvale, California.

What it's used for

• Enterprise IT for Synopsys: corporate sites, engineering offices and the company's public-facing edge services.
• Announces roughly 2,000 addresses out of 149.117.0.0. The visible reverse DNS is entirely Synopsys's own infrastructure — external DNS, SMTP relays and remote-access VPN gateways on synopsys.com.

Notable

• The rDNS names a European datacentre prefix on the VPN and mail hosts, so this AS carries edge services for Synopsys sites beyond the US even though the registrant and the AS are American.
• This is a company's own network. Nothing here is hosting or subscriber space, and addresses should be attributed to Synopsys offices, not to any provider.

Interesting

• Synopsys designs the software chipmakers use to design chips, and it holds an AS number from January 1997 — a reminder of how early Silicon Valley EDA firms needed wide-area routing between engineering sites.