Data as of Nov 3, 2026
37.18.4.0/23
No anonymizer space · no proxy exits in 30 daysWeserve B.V. · space held by LeaderTelecom 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 |
|---|---|---|---|---|---|---|
| 37.18.4.0/22 | 1,024 | NL-LEADERTELECOMBV-20111220 | LeaderTelecom B.V. (ORG-LB21-RIPE) · NL | ALLOCATED PA | Mar 23, 2020 | [email protected] |
| └ 37.18.4.0/23 | 512 | WeserveNL-NET | Weserve B.V. | ASSIGNED PA | Mar 22, 2020 | [email protected] |
Network & registry
Announced by
Covering announcement 37.18.4.0/22
- Prefix
- 37.18.4.0/22
- Announced by
- AS208864 Weserve B.V.
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- NL-LEADERTELECOMBV-20111220
- Registrant
- LeaderTelecom B.V.
- RIR
- RIPE NCC
Origin network
AS208864
NL
- Name
- Weserve B.V.
- Type
- Internet provider
- Registered
- Feb 7, 2022
- Domain
- weserve.nl
- Website
- www.weserve.nl
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 37.18.4.0/22
37.18.4.0/22
Routing history
- Pattern
- Rotating
- First seen
- Aug 2019
- Current origin since
- Feb 2026 · 9 mo
- Origin networks
- 3
- Last change of origin
- Feb 2026
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 37.18.4.0/22 | AS208864 | /22 | RIPE | RPKI valid |
IRR
Route objects on 37.18.4.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS208864 | RIPE | LEADERTELECOMBV-MNT | Feb 15, 2026 |
Whois
Registration for this announcement
- Range
- 37.18.4.0/22
- Netname
- NL-LEADERTELECOMBV-20111220
- Registrant
- LeaderTelecom B.V.
- Registrant country
- NL
- Organization
- LeaderTelecom B.V. (ORG-LB21-RIPE)
- Org country
- NL
- Type
- ALLOCATED PA
- Created
- Mar 23, 2020
- Updated
- Jul 7, 2023
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Dec 20, 2011
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- LeaderTelecom BV
- Handle
- LB11653-RIPE