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Autonomous System

AS39122

Blacknight Internet Solutions Limited

Announced IPs
24,576
CIDR prefixes
18
ASN
AS39122

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Content
Traffic level 200-300Gbps
Geographic scope Europe
Traffic ratio Balanced
Peering policy Open
IRR record AS-BLACKNIGHT

Present at 9 internet exchanges: INEX LAN1: INEX LAN1, INEX LAN2, LINX LON1: Main, AMS-IX, INEX Cork: Peering LAN, Speed-IX: SPEED-IX, LONAP: LON0, ERA-IX Amsterdam, Frys-IX

Web3 footprint

AS39122 hosts 6 observed decentralized-network nodes across 3 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
78.153.192.0/19 8.2K
75.6%
Blacknight Internet Solutions Limited IE Leinster Dublin
46.22.128.0/20 4.1K
99.3%
Blacknight Internet Solutions Limited IE — —
81.17.240.0/20 4.1K
89.7%
Blacknight Internet Solutions Limited IE Leinster Dublin
200.69.8.0/21 2.0K
99.6%
Blacknight Internet Solutions Limited IE — —
185.2.64.0/22 1.0K
98.8%
Blacknight Internet Solutions Limited IE Leinster Carlow
185.209.164.0/22 1.0K
0.0%
Blacknight Internet Solutions Limited IE Munster Cork
200.69.12.0/22 1.0K
99.7%
Blacknight Internet Solutions Limited IE — —
91.197.234.0/23 512
100.0%
Blacknight Internet Solutions Limited IE — —
176.52.222.0/23 512
99.2%
Blacknight Internet Solutions Limited IE — —
185.17.238.0/23 512
0.6%
Blacknight Internet Solutions Limited NZ — —
185.94.44.0/23 512
0.0%
Blacknight Internet Solutions Limited IE Leinster Piltown
200.69.10.0/23 512
99.0%
Blacknight Internet Solutions Limited IE — —
64.96.3.0/24 256
99.2%
Blacknight Internet Solutions Limited CA — —
64.255.40.0/24 256
96.5%
Blacknight Internet Solutions Limited US — —
69.5.186.0/24 256
88.3%
Blacknight Internet Solutions Limited US — —
185.173.167.0/24 256
0.0%
Blacknight Internet Solutions Limited IE — —
185.204.136.0/24 256
0.0%
Blacknight Internet Solutions Limited IE Leinster Bagenalstown
193.36.43.0/24 256
99.2%
Blacknight Internet Solutions Limited IE — —
193.203.126.0/24 256
100.0%
Blacknight Internet Solutions Limited IE — —
194.9.222.0/24 256
0.0%
Blacknight Internet Solutions Limited IE Leinster Dublin
200.69.8.128/25 128
100.0%
Blacknight Internet Solutions Limited IE — —
200.69.9.128/25 128
100.0%
Blacknight Internet Solutions Limited IE — —
200.69.8.0/26 64
100.0%
Blacknight Internet Solutions Limited GB — —
200.69.8.64/26 64
100.0%
Blacknight Internet Solutions Limited IE — —
200.69.9.0/26 64
100.0%
Blacknight Internet Solutions Limited NL — —
200.69.9.64/26 64
100.0%
Blacknight Internet Solutions Limited IE — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS39122 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
78.153.192.0/19 15,702 2026-10-15 15:09:12
64.96.3.0/24 15,300 2026-10-15 15:09:14
69.5.186.0/24 15,173 2026-10-15 15:09:12
78.153.212.0/24 15,032 2026-10-15 15:09:12
46.22.128.0/20 15,023 2026-10-15 15:09:12
193.36.43.0/24 15,020 2026-10-15 15:09:12
64.255.40.0/24 14,973 2026-10-15 15:09:14
81.17.240.0/20 14,888 2026-10-15 15:09:12
81.17.242.0/24 14,862 2026-10-15 15:09:12
78.153.202.0/24 14,834 2026-10-15 15:09:12
81.17.240.0/24 14,800 2026-10-15 15:09:14
91.197.234.0/23 14,799 2026-10-15 15:09:14
185.173.167.0/24 14,681 2026-10-15 15:09:14
185.94.44.0/24 14,605 2026-10-15 15:09:12
194.9.222.0/24 14,603 2026-10-15 15:09:14
185.94.45.0/24 14,586 2026-10-15 15:09:14
185.2.64.0/22 14,578 2026-10-15 15:09:12
185.209.164.0/22 14,554 2026-10-15 15:09:14
185.17.238.0/23 14,511 2026-10-15 15:09:14
176.52.222.0/23 14,510 2026-10-15 15:09:14
185.204.136.0/24 14,467 2026-10-15 15:09:14
193.203.126.0/24 14,345 2026-10-15 15:09:14
200.69.8.0/21 14,210 2026-10-15 15:09:14
85.159.16.0/21 13,168 2026-09-08 20:46:11
194.8.48.0/24 11,959 2026-10-01 22:07:22
194.9.174.0/24 11,541 2026-10-01 22:07:22
194.8.59.0/24 11,490 2026-10-01 22:07:22
91.210.232.0/22 4,480 2026-06-25 22:07:22

Frequently Asked Questions

What is AS39122?

AS39122 is an Autonomous System Number assigned to Blacknight Internet Solutions Limited. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS39122 announce?

AS39122 announces 24.6K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in Ireland.

Who operates AS39122?

AS39122 is operated by Blacknight Internet Solutions Limited. The organization is based in Ireland. You can view all IP ranges and related ASNs on the organization page.

What country is AS39122 registered in?

AS39122 is registered in Ireland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-10-15 16:09:05 UTC
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