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Data as of Nov 7, 2026

81.17.240.0/20

No anonymizer space · no proxy exits in 30 days

Blacknight Internet Solutions Limited

Announcement
this exact prefix
RPKI valid
Announced by
AS39122
Type
Hosting

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
81.17.240.0/24
since May 2021
AS39122HostingBlacknight Internet Solutions Limited
81.17.242.0/24
since May 2021
AS39122HostingBlacknight Internet Solutions Limited

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
81.17.240.0/204,096IE-BLACKNIGHT-20051216Blacknight Internet Solutions Limited (ORG-BISL2-RIPE) · IEALLOCATED PADec 16, 2005abuse@blacknight.ie
└ 81.17.240.0/24256BLACKNIGHT-INFRABlacknight Network InfrastructureASSIGNED PAMar 13, 2006abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.241.0/24256BLACKNIGHT-INFRABlacknight Network InfrastructureASSIGNED PAApr 17, 2026abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.0/2816BLACKNIGHT-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.24/298MNEYLON-NETMNeylon NetworkASSIGNED PASep 11, 2006abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.32/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PASep 13, 2006abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.40/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.48/298BLACKNIGHT-BROADBANDunknownASSIGNED PADec 5, 2006abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.64/2816CUST-INFRACustomer assigned /28 for network infrastructureASSIGNED PAMay 12, 2006abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.80/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAFeb 13, 2009abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.88/298BLACKNIGHT-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.96/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.104/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJun 24, 2008abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.112/2816BLACKNIGHT-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.128/2732EFENCE-NETCustomer assigned /27ASSIGNED PAJan 25, 2007abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.160/2816AvastunknownSUB-ALLOCATED PAJun 29, 2021vpn-abuse@avast.com
└ 81.17.242.160/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAAug 9, 2007vpn-abuse@avast.com
└ 81.17.242.168/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018vpn-abuse@avast.com
via Avast
└ 81.17.242.176/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PASep 13, 2007abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.184/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.192/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.200/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAMay 22, 2007abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.208/2816CUST-INFRACustomer assigned /28 for network infrastructureASSIGNED PAJul 11, 2007abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.242.248/298CUST-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.243.0/2664BLACKNIGHT-DEDICATEDunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.243.64/2732BLACKNIGHT-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.243.96/2732BLACKNIGHT-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.243.128/25128BLACKNIGHT-INFRAunknownASSIGNED PANov 23, 2010abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.244.0/23512BLACKNIGHT-DEDICATEDDedicated ServersASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.0/2732CUST-INFRACustomer assigned /27 for network infrastructureASSIGNED PAJun 27, 2015abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.32/2816CUST-INFRACustomer assigned /28 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.48/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.56/298CUST-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.64/2816CUST-INFRAunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.80/2816CUST-INFRACustomer assigned /28 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.112/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.120/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.128/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.144/2816CUST-INFRACustomer assigned /28 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.160/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.168/298CUST-INFRACustomer assigned /29 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.176/2816CUST-INFRACustomer assigned /28 for network infrastructureASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.192/2732BLACKNIGHT-DEDICATEDunknownASSIGNED PAFeb 19, 2021abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.246.224/2732BLACKNIGHT-DEDICATEDunknownASSIGNED PAFeb 19, 2021abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.247.0/24256BLACKNIGHT-BROADBANDBroadband CustomersASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.248.0/25128BLACKNIGHT-HOSTINGunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.248.128/25128BLACKNIGHT-CLOUDunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.249.0/24256BLACKNIGHT-CLOUDunknownASSIGNED PAJul 30, 2018abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.250.0/23512BLACKNIGHT-HOSTINGunknownASSIGNED PAJul 9, 2007abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.252.0/24256BLACKNIGHT-HOSTINGunknownASSIGNED PAMay 2, 2013abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.253.0/24256BLACKNIGHT-INFRAunknownASSIGNED PAMay 2, 2013abuse@blacknight.ie
via IE-BLACKNIGHT-20051216
└ 81.17.254.0/23512BLACKNIGHT-HOSTINGunknownASSIGNED PAJul 9, 2007abuse@blacknight.ie
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

AnnouncementRouting historyRPKI & IRRWhois & abuse
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