Data as of Nov 8, 2026
Autonomous system
AS397635
Synopsys Inc.
Announces 4,864 addresses in 17 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | RPKI |
|---|---|---|
| 149.117.4.0/24 since May 2024 | Business | |
| 149.117.7.0/24 since Aug 2019 | Business | |
| 149.117.72.0/21 since Aug 2019 | Business | |
| 149.117.73.0/24 since Nov 2019 | Business | |
| 149.117.74.0/24 since Aug 2019 | Business | |
| 149.117.75.0/24 since Sep 2019 | Business | |
| 149.117.76.0/24 since Apr 2020 | Business | |
| 149.117.79.0/24 since Sep 2019 | Business | |
| 149.117.87.0/24 since Aug 2019 | Business | |
| 149.117.90.0/23 since Oct 22, 2026 | Business | |
| 149.117.90.0/24 since Oct 22, 2026 | Business | |
| 149.117.92.0/23 since Nov 2025 | Business | |
| 149.117.92.0/24 since Jul 2023 | Business | |
| 149.117.93.0/24 since Jun 2024 | Business | |
| 149.117.96.0/22 since Jan 2026 | Business | |
| 149.117.96.0/24 since Jan 2026 | Business | |
| 149.117.98.0/24 since Jan 2026 | Business |
Network & history
Profile
- Registered
- Jun 11, 2019
- Domain
- synopsys.com
- Industry
- Software Development
Routing patterns
How its announcements have moved
Arrivals