Data as of Nov 7, 2026
81.17.242.128/27
No anonymizer space · no proxy exits in 30 daysBlacknight Internet Solutions Limited
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 81.17.240.0/20 since Aug 2016 | AS39122 | Hosting | Blacknight Internet Solutions Limited |
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 |
|---|---|---|---|---|---|---|
| 81.17.240.0/20 | 4,096 | IE-BLACKNIGHT-20051216 | Blacknight Internet Solutions Limited (ORG-BISL2-RIPE) · IE | ALLOCATED PA | Dec 16, 2005 | abuse@ |
| └ 81.17.242.128/27 | 32 | EFENCE-NET | Customer assigned /27 | ASSIGNED PA | Jan 25, 2007 | abuse@ via IE-BLACKNIGHT-20051216 |
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
Announced by
Covering announcement 81.17.242.0/24
- Prefix
- 81.17.242.0/24
- Announced by
- AS39122 Blacknight Internet Solutions Limited
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- IE-BLACKNIGHT-20051216
- Registrant
- Blacknight Internet Solutions Limited
- RIR
- RIPE NCC
Origin network
AS39122
IE
- Name
- Blacknight Internet Solutions Limited
- Type
- Hosting
- Registered
- Dec 16, 2005
- Domain
- blacknight.com
- Website
- www.blacknight.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
81.17.242.0/24
Routing history
- Pattern
- Stable
- First seen
- May 2021
- Current origin since
- May 2021 · 5.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.17.240.0/20 | AS39122 | /24 | RIPE | RPKI valid |
IRR
Route objects on 81.17.242.0/24
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS39122 | RIPE | IE-BLACKNIGHT-INFRA | MNT-BLACKNIGHT | May 23, 2021 |
Whois
Registration for this announcement
- Range
- 81.
17. 240. 0/ 20 - Netname
- IE-BLACKNIGHT-20051216
- Registrant
- Blacknight Internet Solutions Limited
- Registrant country
- IE
- Organization
- Blacknight Internet Solutions Limited (ORG-BISL2-RIPE)
- Org country
- IE
- Type
- ALLOCATED PA
- Created
- Dec 16, 2005
- Updated
- Jul 5, 2023
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- IE
- Delegated
- Dec 16, 2005
- Status
- assigned
Report abuse
Abuse contact
- abuse@
blacknight. ie - Name
- Blacknight RIPE Administrator
- Handle
- BK1905-RIPE