Data as of Nov 3, 2026
145.98.0.0/21
No anonymizer space · no proxy exits in 30 daysSurf B.V.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 145.98.0.0/16 since Jun 2025 | AS1103 | Business | Surf B.V. |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 145.98.7.0/24 since Feb 2026 | AS1147 | Business | 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 |
|---|---|---|---|---|---|---|
| 145.88.0.0 - 145.118.255.255 | 2,031,616 | SURFNET-EARLY-REGISTRATIONS | Surf B.V. (ORG-SB3-RIPE) · NL | LEGACY | Nov 24, 2025 | [email protected] |
| └ 145.98.0.0/21 | 2,048 | MCL-NET | Medisch Centrum Leeuwarden B.V. | LEGACY | Jan 16, 2025 | [email protected] 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
AS1147
NL
- Name
- Surf B.V.
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- surf.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
- Stable
- First seen
- Jun 2025
- Current origin since
- Jan 2026 · 9 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 145.98.0.0/21 | AS1147 | /24 | RIPE | RPKI valid |
| 145.98.0.0/16 | AS1103 | /24 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS1147 | RIPE | MCLNET main | AS1103-MNT | Feb 4, 2025 |
Whois
Registration for this announcement
- Range
- 145.98.0.0/21
- Netname
- MCL-NET
- Registrant
- Medisch Centrum Leeuwarden B.V.
- Registrant country
- NL
- Organization
- Medisch Centrum Leeuwarden B.V.
- Org country
- NL
- Type
- LEGACY
- Created
- Jan 16, 2025
- Updated
- Sep 24, 2026
- Maintainer
- SN-LIR-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Sep 1, 1993
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- SURF Network Maintainer
- Handle
- SNS1-RIPE