AS39122 — BLACKNIGHT-AS

Network type: hosting

AS39122 announces 18 IPv4 prefixes covering 24,576 addresses and 6 IPv6 prefixes.

About this network

BLACKNIGHT-AS is operated by Blacknight Internet Solutions Limited.

What it's used for

• The address space carries hosting and co-location infrastructure, evidenced by netnames IE-BLACKNIGHT-20101125, BLACKNIGHT-DEDICATED, and BLACKNIGHT-HOSTING, and reverse DNS entries such as 132-0.colo.sta.blacknight.ie and dns2.blacknight.ie.
• The AS announces 25,344 IPv4 addresses across 34 prefixes and 6 IPv6 prefixes, while maintaining 1,463 observed neighbours; this high neighbour count relative to address volume indicates a transit and peering-heavy role supporting its hosting and colocation services.
• Traffic from this AS consists of web hosting endpoints, dedicated server instances, and domain registration services for business customers, consistent with Blacknight's operations as an ICANN-accredited registrar and hosting provider.

Notable

• All registrants for the sampled prefixes are consistent with the announcer, listing Blacknight RIPE Administrator, Blacknight RIPE Engineering, and Blacknight Internet Solutions Limited.
• The address inventory is finely subdivided into numerous /22, /23, and /24 blocks, reflecting a segmented internal corporate estate for different service tiers and customer allocations.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 46.22.128.0/20
• 64.96.3.0/24
• 64.255.40.0/24
• 69.5.186.0/24
• 78.153.192.0/19
• 81.17.240.0/20
• 91.197.234.0/23
• 176.52.222.0/23
• 185.2.64.0/22
• 185.17.238.0/23
• 185.94.44.0/23
• 185.173.167.0/24
• 185.204.136.0/24
• 185.209.164.0/22
• 193.36.43.0/24
• 193.203.126.0/24
• 194.9.222.0/24
• 200.69.8.0/21
• 2620:57:4003::/48
• 2a01:a8::/32
• 2a01:aa::/32
• 2a01:4d8::/32
• 2a03:dd41::/32
• 2a0d:1f00::/29

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS50304 Blix Solutions AS
• AS48185 team.blue NV
• AS58057 Securebit AG
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS37100 SEACOM Limited
• AS202365 Omer GOLGELI
• AS20766 Association "Gitoyen"
• AS34927 iFog GmbH
• AS12779 IT.Gate S.p.A.
• AS17639 Converge ICT Solutions Inc.
• AS2497 Internet Initiative Japan Inc.
• AS3303 Swisscom (Schweiz) AG
• AS3741 Dimension Data
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS48362 Stadtwerke Feldkirch
• AS3216 PJSC "Vimpelcom"
• AS293 ESnet

Downstream networks

• AS201000 Js Whizzy Internet Limited
• AS215733 Blacknight Internet Solutions Limited
• AS34989 ServeTheWorld AS
• AS202448 MVPS LTD
• AS200807 Sleepless Server Solutions Ltd.
• AS49567 Aptus Ltd
• AS206746 SCC BROADBAND LIMITED
• AS203185 PEBBLETREE LTD
• AS213128 LINK Broadband Limited
• AS42090 Rapid Broadband Ltd
• AS210045 Blackrock Clinic Unlimited Company
• AS200363 Blacknight Internet Solutions Limited
• AS1197 Network Ability Limited
• AS60277 Agility Communications Limited
• AS206663 MTS Media Ltd
• AS39093 WESTNET BROADBAND MAYO LIMITED
• AS205039 Beacon Broadband LTD
• AS41073 Raidio Teilifis Eireann
• AS61145 Real Broadband Ltd
• AS61455 LACTLD - LATIN AMERICAN AND CARIBBEAN TLD ASSOCIATION
• AS60592 Gransy s.r.o.
• AS204210 Zeus Packaging Limited
• AS42909 Community DNS Limited

Adjacent networks

• AS201000 Js Whizzy Internet Limited
• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS215733 Blacknight Internet Solutions Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS34989 ServeTheWorld AS
• AS202448 MVPS LTD
• AS50304 Blix Solutions AS
• AS200807 Sleepless Server Solutions Ltd.
• AS49567 Aptus Ltd
• AS1197 Network Ability Limited
• AS206746 SCC BROADBAND LIMITED
• AS203185 PEBBLETREE LTD
• AS42090 Rapid Broadband Ltd
• AS213128 LINK Broadband Limited
• AS60277 Agility Communications Limited
• AS50300 CustodianDC Limited
• AS210045 Blackrock Clinic Unlimited Company
• AS200363 Blacknight Internet Solutions Limited
• AS24482 SG.GS
• AS206663 MTS Media Ltd
• AS48185 team.blue NV
• AS17639 Converge ICT Solutions Inc.
• AS37100 SEACOM Limited

Internet exchanges

• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• London Network Access Point — London, United Kingdom
• Speed Internet Exchange — Dronten, Netherlands
• ERA-IX Amsterdam — Amsterdam, Netherlands
• Internet Neutral Exchange Association CLG - LAN1 — Dublin, Ireland
• Internet Neutral Exchange Association CLG - LAN2 — Dublin, Ireland
• Internet Neutral Exchange Association CLG - Cork — Cork, Ireland