AS7809 — SYNOPSYS
AS7809 announces 5 IPv4 prefixes covering 2,304 addresses and 0 IPv6 prefixes.
About this network
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.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 149.117.132.0/22
- 149.117.136.0/23
- 149.117.139.0/24
- 149.117.140.0/24
- 149.117.147.0/24
Upstream networks
- AS3356 Level 3 Parent, LLC
- AS8932 Ucom CJSC
- AS702 Verizon Business
- AS43733 Viva Armenia CJSC
- AS8220 COLT Technology Services Group Limited
Adjacent networks
BGP / ASN / CIDR
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IPv4
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IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED