AS513
CERN - European Organization for Nuclear Research
ASN
AS513
Country
Switzerland
IPv4 addresses
354,816
Prefixes (IPv4 / IPv6)
19 / 1
ASN Information
- ASN Number
- AS513
- AS Name
- CERN - European Organization for Nuclear Research
- Country
- Switzerland
- IPv4 addresses
- 354,816
- IPv4 prefixes
- 19
- IPv6 prefixes
- 1
VPN & datacenter signals
None of this network's ranges appear in public VPN or datacenter lists.
Counted from public VPN and datacenter lists. Check individual IPs with the API.
Top Countries
Largest announced prefixes
- 188.184.0.0/15
- 137.138.0.0/16
- 128.142.0.0/16
- 128.141.0.0/16
- 194.12.128.0/18
- 192.65.184.0/21
- 192.91.236.0/22
- 192.65.192.0/22
- 192.16.160.0/22
- 192.16.156.0/22
Source: public routing and registration data, updated 2026-10-28.
Explore IP data by country
United States
United Kingdom
Germany
France
Japan
China
Australia
Canada
Brazil
India
Netherlands
Sweden
Norway
Switzerland
Singapore
Hong Kong
South Korea
Russia
Poland
Czech Republic
Query ASN data via API
Integrate ASN lookups and threat intelligence into your application.