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Internet Service Providers in Ireland
List of the top 20 organizations with the largest IP allocations in Ireland
Rank
Name
IPv4 addresses
IPv6 /64 networks
AS numbers
Prefixes
Google Ireland Limited
2,689,280
1.01 x 2
33
1
232
ASIERA TECHNOLOGY SERVICES CLG
1,843,200
2
32
1
18
Vodafone Ireland Limited
1,445,120
0
2
224
4
Eircom Limited
1,135,616
2
36
2
36
5
BT Communications Ireland Limited
246,784
1.13 x 2
35
2
19
6
Three Ireland (Hutchison) limited
241,664
0
1
70
7
Digiweb ltd
228,608
1.63 x 2
35
2
61
8
Imagine Communications Group Limited
126,720
2
32
1
21
9
Magnet Networks Limited
106,752
1.25 x 2
35
2
23
10
University College Dublin
65,536
0
1
1
11
Fulnett Limited
45,056
2
32
1
10
12
Blacknight Internet Solutions Limited
36,096
1.88 x 2
35
3
45
13
Google Cloud EMEA Ltd
32,768
2
29
2
4
14
Irish Government
26,624
2
32
2
25
15
Jurgita Jurgaitienei trading as LOCOTORPI
25,344
0
1
80
16
Coolwave Communications Limited
25,088
0
1
4
17
ServeCentric Ltd.
24,576
0
1
2
18
Enet Telecommunications Networks Limited
24,064
1.03 x 2
35
1
47
19
Afilias Ltd
21,248
1.3 x 2
22
1
166
20
CORK INTERNET EXCHANGE LIMITED
19,968
2
33
1
17