Data as of Nov 5, 2026
145.102.0.0/23
No anonymizer space · no proxy exits in 30 daysStichting Internet Domeinregistratie Nederland · space held by Surf B.V.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 145.102.0.0/16 since May 2013 | AS1103 | Business | 64 | Surf B.V. |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, 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@ |
| └ 145.102.0.0/23 | 512 | SIDN-NET | SIDN | LEGACY | May 15, 2024 | cert@ via SURFNET-EARLY-REGISTRATIONS |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
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
AS215088
NL
- Name
- Stichting Internet Domeinregistratie Nederland
- Type
- Business
- Registered
- Apr 17, 2024
- Domain
- sidnlabs.nl
- Website
- www.sidnlabs.nl
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- May 2024 · 2.4 yr
- Origin networks
- 3
- Last change of origin
- May 2024
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 145.102.0.0/23 | AS215088 | /23 | RIPE | RPKI valid |
| 145.102.0.0/16 | AS1103 | /24 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS215088 | RIPE | SN-LIR-MNT | May 28, 2024 |
Whois
Registration for this announcement
- Range
- 145.
102. 0. 0/ 23 - Netname
- SIDN-NET
- Registrant
- SIDN
- Registrant country
- NL
- Organization
- SIDN
- Org country
- NL
- Type
- LEGACY
- Created
- May 15, 2024
- Updated
- Oct 8, 2026
- 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