Data as of Nov 10, 2026
Autonomous system
AS19580
A.R.T. Advisors, LLC
Announces 2,304 addresses in 9 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 149.85.1.0/24 since May 2020 | Business | Cogent Communications, LLC | |
| 149.85.2.0/24 since Oct 2023 | Business | Cogent Communications, LLC | |
| 149.85.5.0/24 since Oct 2023 | Business | Cogent Communications, LLC | |
| 149.85.6.0/24 since Oct 2023 | Business | Cogent Communications, LLC | |
| 149.85.7.0/24 since Aug 2023 | Business | Cogent Communications, LLC | |
| 149.85.8.0/24 since Oct 2023 | Business | Cogent Communications, LLC | |
| 149.85.11.0/24 since Oct 2023 | Business | Cogent Communications, LLC | |
| 149.85.12.0/24 since Oct 2023 | Business | Cogent Communications, LLC | |
| 149.85.101.0/24 since Jan 2017 | Business | Cogent Communications, LLC |
Network & history
Profile
- Registered
- May 21, 2014
- Industry
- Law, Business, and Consulting Services
Routing patterns
How its announcements have moved
Arrivals