Data as of Nov 4, 2026
Autonomous system
AS6873
Librum Sp. z o.o.
Announces 768 addresses in 3 prefixes. None of it is anonymizer space.
Type
Business
PL
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 89.174.75.0/24 since Dec 2023 | Business | T-Mobile Polska S.A. | |
| 155.133.29.0/24 since Sep 2024 | Business | TerraTransit AG | |
| 193.104.156.0/24 since May 2010 | Business |
Network & history
Profile
- Registered
- Jul 27, 2009
- Domain
- librum.pl
- Industry
- Law, Business, and Consulting Services
Routing patterns
How its announcements have moved
Arrivals