Data as of Nov 10, 2026
Autonomous system
AS21633
U.S. Department of the Interior
Announces 2,816 addresses in 4 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | RPKI |
|---|---|---|
| 137.227.192.0/21 since Sep 2005 | Business | |
| 199.5.233.0/24 since Jul 2026 | Business | |
| 205.173.0.0/24 since May 2015 | Business | |
| 205.173.4.0/24 since May 2015 | Business |
Network & history
Profile
- Registered
- Jun 1, 2001
- Domain
- doi.gov
- Industry
- Accountants, Tax Preparers, Payroll Services
Routing patterns
How its announcements have moved
Arrivals