Data as of Nov 13, 2026
145.109.185.0/24
No anonymizer space · no proxy exits in 30 daysUniversiteit van Amsterdam Amsterdam The Netherlands · space held by Surf B.V.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 145. | 2,031,616 | SURFNET-EARLY-REGISTRATIONS | Surf B.V. (ORG-SB3-RIPE) · NL | LEGACY | Nov 24, 2025 | cert@ |
| └ 145.109.0.0/16 | 65,536 | HVA-NET | Hogeschool van Amsterdam | LEGACY | Oct 21, 2026 | cert@ |
| └ 145.109.128.0/17 | 32,768 | HVA-NET | Hogeschool van Amsterdam | LEGACY | May 3, 2016 | cert@ |
Network & registry
Announced by
Covering announcement 145.109.128.0/17
- Prefix
- 145.109.128.0/17
- Announced by
- AS1124 Universiteit van Amsterdam Amsterdam The Netherlands
- Type
- Business
- Proxy exits
- 15
- RPKI
- RPKI valid
- Netname
- HVA-NET
- Registrant
- Hogeschool van Amsterdam
- RIR
- RIPE NCC
IPv4 market
Holder
- Organization
- Surf B.V.
- Handle
- ORG-SB3-RIPE
- Range
- 145.
88. 0. 0 - 145. 118. 255. 255 - Registration type
- LEGACY
- Record created
- Nov 24, 2025
- Legacy
- yes
Origin network
AS1124
EU
- Name
- Universiteit van Amsterdam Amsterdam The Netherlands
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- uva.nl
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 145.109.128.0/17
145.109.128.0/17
Routing history
- Pattern
- Stable
- First seen
- Mar 2014
- Current origin since
- Dec 2017 · 8.9 yr
- Origin networks
- 2
- Last change of origin
- Dec 2017
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 145.109.128.0/17 | AS1103 | /24 | RIPE | Another network |
| 145.109.128.0/17 | AS1124 | /17 | RIPE | RPKI valid |
Whois
Registration for this announcement
- Range
- 145.
109. 128. 0/ 17 - Netname
- HVA-NET
- Registrant
- Hogeschool van Amsterdam
- Registrant country
- NL
- Organization
- Hogeschool van Amsterdam
- Org country
- NL
- Type
- LEGACY
- Created
- May 3, 2016
- Updated
- Oct 2, 2025
- Maintainer
- SN-LIR-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Sep 1, 1993
- Status
- assigned
Report abuse
Abuse contact
- cert@
surfcert. nl - Name
- SURF Network Maintainer
- Handle
- SNS1-RIPE