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Organization

European Organization for Nuclear Research

IPv4 addresses
354,816
CIDR ranges
19
Category
enterprise
BGP prefixes announced
25

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.

69/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Enterprise allocation +4
  • Trust score 69 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About CERN

The European Organization for Nuclear Research, known as CERN, is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, a western suburb of Geneva, on the France–Switzerland border.

Founded
1954
Headquarters
villarodin Bourget
Employees
2,560

Operates 1 network present at 1 internet exchange with a open peering policy.

Countries served by European Organization for Nuclear Research

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by European Organization for Nuclear Research

ASNNameIPsPrefixesCountry
AS513 European Organization for Nuclear Research 354.8K 19 CH

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
188.184.0.0/15 131.1K
15.5%
AS513 CH Geneva Geneva
128.141.0.0/16 65.5K
28.6%
AS513 CH Vaud Lausanne
128.142.0.0/16 65.5K
5.5%
AS513 CH Geneva Geneva
137.138.0.0/16 65.5K
4.0%
AS513 CH Geneva Geneva
194.12.128.0/18 16.4K
58.7%
AS513 CH Geneva Geneva
194.12.128.0/20 4.1K
0.0%
AS513 CH
192.65.184.0/21 2.0K
7.2%
AS513 CH
194.12.144.0/21 2.0K
0.0%
AS513 CH
194.12.168.0/21 2.0K
0.0%
AS513 CH
194.12.176.0/21 2.0K
0.0%
AS513 CH
185.249.56.0/22 1.0K
0.0%
AS513 CH
192.16.156.0/22 1.0K
0.4%
AS513 CH
192.16.160.0/22 1.0K
0.4%
AS513 CH
192.65.188.0/22 1.0K
0.0%
AS513 CH
192.65.192.0/22 1.0K
0.4%
AS513 CH
192.91.236.0/22 1.0K
0.5%
AS513 CH
192.91.240.0/22 1.0K
4.1%
AS513 CH
194.12.156.0/22 1.0K
0.0%
AS513 CH
194.12.164.0/22 1.0K
0.0%
AS513 CH
194.12.188.0/22 1.0K
0.0%
AS513 CH
192.16.164.0/23 512
0.4%
AS513 CH
192.65.186.0/23 512
0.0%
AS513 CH
192.65.196.0/23 512
30.1%
AS513 CH
192.91.244.0/23 512
12.1%
AS513 CH
194.12.154.0/23 512
0.0%
AS513 CH
194.12.160.0/23 512
0.0%
AS513 CH
194.12.186.0/23 512
0.0%
AS513 CH
192.16.155.0/24 256
5.1%
AS513 CH
192.16.166.0/24 256
34.0%
AS513 CH
192.65.183.0/24 256
10.2%
AS513 CH
192.65.184.0/24 256
0.0%
AS513 CH
192.91.246.0/24 256
3.5%
AS513 CH
194.12.153.0/24 256
0.0%
AS513 CH
194.12.163.0/24 256
0.0%
AS513 CH
194.12.184.0/24 256
0.0%
AS513 CH
192.16.155.128/25 128
0.0%
AS513 CH
194.12.152.0/25 128
0.0%
AS513 CH
194.12.162.0/25 128
0.0%
AS513 CH
194.12.162.128/25 128
0.0%
AS513 FR
194.12.185.0/25 128
0.0%
AS513 CH
192.16.155.64/26 64
0.0%
AS513 CH
194.12.152.192/26 64
0.0%
AS513 CH
194.12.185.192/26 64
0.0%
AS513 CH
192.16.155.32/27 32
0.0%
AS513 CH
192.65.185.32/27 32
0.0%
AS513 CH
192.65.185.160/27 32
0.0%
AS513 CH
194.12.152.160/27 32
0.0%
AS513 CH
194.12.185.128/27 32
0.0%
AS513 CH
194.12.185.160/27 32
0.0%
AS513 FR
192.16.155.0/28 16
0.0%
AS513 CH
192.65.185.16/28 16
0.0%
AS513 CH
192.65.185.64/28 16
0.0%
AS513 CH
192.65.185.96/28 16
0.0%
AS513 CH
192.65.185.208/28 16
0.0%
AS513 CH
192.65.185.224/28 16
0.0%
AS513 CH
194.12.152.144/28 16
0.0%
AS513 CH
192.16.155.16/29 8
0.0%
AS513 CH
192.65.185.8/29 8
0.0%
AS513 CH
192.65.185.80/29 8
0.0%
AS513 CH
192.65.185.112/29 8
0.0%
AS513 CH
192.65.185.136/29 8
0.0%
AS513 CH
192.65.185.152/29 8
0.0%
AS513 CH
192.65.185.200/29 8
0.0%
AS513 CH
192.65.185.248/29 8
0.0%
AS513 CH
194.12.152.128/29 8
0.0%
AS513 CH
192.16.155.24/30 4
0.0%
AS513 CH
192.16.155.28/30 4
0.0%
AS513 NL
192.65.185.4/30 4
0.0%
AS513 CH
192.65.185.88/30 4
0.0%
AS513 CH
192.65.185.124/30 4
0.0%
AS513 CH
192.65.185.144/30 4
0.0%
AS513 CH
192.65.185.196/30 4
0.0%
AS513 CH
192.65.185.240/30 4
0.0%
AS513 CH
194.12.152.136/30 4
0.0%
AS513 CH
192.65.185.0/31 2
0.0%
AS513 CH
192.65.185.92/31 2
0.0%
AS513 CH
192.65.185.120/31 2
0.0%
AS513 CH
192.65.185.128/31 2
0.0%
AS513 CH
192.65.185.132/31 2
0.0%
AS513 FR
192.65.185.134/31 2
0.0%
AS513 CH
192.65.185.150/31 2
0.0%
AS513 CH
192.65.185.192/31 2
0.0%
AS513 CH
192.65.185.244/31 2
0.0%
AS513 CH
194.12.152.142/31 2
0.0%
AS513 CH
192.65.185.2 1
0.0%
AS513 CH
192.65.185.3 1
0.0%
AS513 FR
192.65.185.94 1
0.0%
AS513 CH
192.65.185.95 1
0.0%
AS513 FR
192.65.185.122 1
0.0%
AS513 CH
192.65.185.123 1
0.0%
AS513 FR
192.65.185.130 1
0.0%
AS513 FR
192.65.185.131 1
0.0%
AS513 CH
192.65.185.148 1
0.0%
AS513 FR
192.65.185.149 1
0.0%
AS513 CH
192.65.185.194 1
0.0%
AS513 FR
192.65.185.195 1
0.0%
AS513 CH
192.65.185.246 1
0.0%
AS513 FR
192.65.185.247 1
0.0%
AS513 CH
194.12.152.140 1
0.0%
AS513 FR
194.12.152.141 1
0.0%
AS513 CH

Frequently Asked Questions

How many IP addresses does European Organization for Nuclear Research own?

European Organization for Nuclear Research controls 354.8K IPv4 addresses distributed across 19 CIDR ranges. The organization is registered in Switzerland.

What ASNs does European Organization for Nuclear Research operate?

European Organization for Nuclear Research operates 1 Autonomous System. Each ASN represents an independently routed network that European Organization for Nuclear Research manages for internet traffic delivery.

What type of organization is European Organization for Nuclear Research?

European Organization for Nuclear Research is categorized as enterprise. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-30 17:40:31 UTC
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