Data as of Nov 5, 2026
Autonomous system
AS1101
Surf B.V.
Announces 1,773,056 addresses in 14 prefixes. None of it is anonymizer space.
Type
Education
NL
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 44.137.0.0/16 since Feb 2022 | Business | Amateur Radio Digital Communications | |
| 145.99.0.0/16 since Jan 2015 | Business | ||
| 145.102.4.0/23 since Jan 2018 | Business | ||
| 145.192.0.0/12 since Aug 2016 | Business | ||
| 145.208.0.0/13 since Dec 2005 | Business | ||
| 145.220.0.0/16 since Jul 2007 | Business | ||
| 185.17.73.0/24 since Mar 2026 | Business | Darkness Reigns (Holding) B.V. | |
| 185.100.59.0/24 since Sep 2016 | Business | Darkness Reigns (Holding) B.V. | |
| 192.12.54.0/24 since May 2005 | Business | ||
| 192.16.200.0/24 since Feb 2008 | Business | SURFnet bv | |
| 192.42.117.0/24 since Sep 2025 | Business | ||
| 192.42.118.0/23 since Apr 2026 | Business | ||
| 192.42.128.0/22 since Feb 2008 | Business | ||
| 192.150.94.0/24 since May 2005 | Business |
Network & history
Profile
- Registered
- Sep 1, 1993
- Domain
- as1101.net
- Website
- as1101.net/
- Industry
- Computer and Information Technology
The space it routes itself
Address share by type
Routing patterns
How its announcements have moved
Arrivals