Data as of Nov 10, 2026
145.201.0.0/16
No anonymizer space · no proxy exits in 30 daysSurf 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 |
|---|---|---|---|---|---|---|
| 145.201.0.0/16 | 65,536 | SURFNET-BLOCKB197 | Surf B.V. (ORG-SB3-RIPE) · NL | LEGACY | Sep 9, 2003 | cert@ |
Network & registry
Announced by
Covering announcement 145.192.0.0/12
- Prefix
- 145.192.0.0/12
- Announced by
- AS1101 Surf B.V.
- Type
- Business
- RPKI
- RPKI valid
- RIR
- RIPE NCC
IPv4 market
Holder
- Organization
- Not stated by the registry
Origin network
AS1101
NL
- Name
- Surf B.V.
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- as1101.net
- Website
- as1101.net/
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 145.192.0.0/12
145.192.0.0/12
Routing history
- Pattern
- Stable
- First seen
- Dec 2005
- Current origin since
- Aug 2016 · 10 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 145.192.0.0/12 | AS1101 | /12 | RIPE | RPKI valid |
IRR
Route objects on 145.192.0.0/12
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS1101 | RIPE | SURFnet CIDR Block III a | SN-LIR-MNT | Nov 28, 2005 |
Whois
Registration for this announcement
145.192.0.0/12 spans several registrations: 16 records are listed under Registrations.
- Registrant country
- EU
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Sep 1, 1993
- Status
- assigned