Data as of Nov 7, 2026
87.238.168.0/21
No anonymizer space · no proxy exits in 30 daysDuocast B.V.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 87.238.171.0/24 since Oct 2024 | AS31477 | Hosting | Duocast 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 |
|---|---|---|---|---|---|---|
| 87.238.168.0/21 | 2,048 | NL-DUOCAST-20060116 | Duocast B.V. (ORG-DA16-RIPE) · NL | ALLOCATED PA | Jan 16, 2006 | abuse@ |
| └ 87.238.170.0/25 | 128 | ILLIAN-NET-SCRIMIT | Scrim IT Network | ASSIGNED PA | Feb 6, 2007 | abuse@ via NL-DUOCAST-20060116 |
| └ 87. | 5 | NL-ENTERWEB | Enterweb (ORG-EA481-RIPE) | ASSIGNED PA | Sep 23, 2010 | abuse@ via NL-DUOCAST-20060116 |
| └ 87.238.173.128/25 | 128 | LITESERVER | The Infrastructure Group B.V. (ORG-TIGB4-RIPE) | ASSIGNED PA | May 25, 2008 | abuse@ |
| └ 87.238.174.0/24 | 256 | DUOCAST-FTTX | unknown | ASSIGNED PA | Mar 26, 2022 | abuse@ via NL-DUOCAST-20060116 |
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
Origin network
AS31477
NL
- Name
- Duocast B.V.
- Type
- Hosting
- Registered
- May 26, 2004
- Domain
- duocast.nl
- Website
- www.duocast.nl
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2006
- Current origin since
- Feb 2010 · 17 yr
- Origin networks
- 2
- Last change of origin
- Feb 2010
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 87.238.168.0/21 | AS31477 | /24 | RIPE | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS31477 | RIPE | illian.networks routes | MNT-DUOCAST | Feb 13, 2010 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 87.238.174.0/24 | AS31477 | RIPE | MNT-DUOCAST | Jan 31, 2024 | |
| 87.238.174.0/24 | AS39292 | RIPE | MNT-DUOCAST | Mar 26, 2022 |
Whois
Registration for this announcement
- Range
- 87.
238. 168. 0/ 21 - Netname
- NL-DUOCAST-20060116
- Registrant
- Duocast B.V.
- Registrant country
- NL
- Organization
- Duocast B.V. (ORG-DA16-RIPE)
- Org country
- NL
- Type
- ALLOCATED PA
- Created
- Jan 16, 2006
- Updated
- Jun 18, 2025
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Jan 16, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse@
duocast. nl - Name
- Duocast role
- Handle
- DUO-RIPE