CERN - European Organization for Nuclear Research
AS513 is CERN - European Organization for Nuclear Research (cern.ch). It announces 354,816 IPv4 addresses in 20 prefixes, and 2 IPv6 prefixes.
Switzerland· RIPE· allocated 1992-11-17· business
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Switzerland354,816 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CERN
- name
- CERN - European Organization for Nuclear Research
- org
- ORG-CEOf1-RIPE
- org name
- CERN - European Organization for Nuclear Research
- org address
- CERN, CH-1211, Geneva 23, SWITZERLAND
- org country
- CH
- country
- CH
- source
- ripe
- status
- LEGACY
- created
- 2001-10-22
- updated
- 2022-02-17
- remarks
- --------- Community Definition ----------- / 513:21357 Prefix to be announced to Akamai / 513:11344 Prefix to be announced to GCC
- maintainer
- RIPE-NCC-LEGACY-MNT|CERN-MNT
- abuse name
- CERN NOC
- abuse email
- abuse@cern.ch
- abuse phone
- +41227677155
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP240.01%
- anyip, proxyrack, cliproxy0.01%
- None here
- None here
- None here
- None here
- Hosting IP4,0961.15%
- None here
- None here
- None here
- SSH IP2910.08%
- None here
- 0.00%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 128.141.0.0/16 | Switzerland | valid | 18 | 2026-10-02 |
| 128.142.0.0/16 | Switzerland | valid | 18 | 2026-10-02 |
| 137.138.0.0/16 | Switzerland | valid | 18 | 2026-10-02 |
| 185.249.56.0/22 | Switzerland | valid | 18 | 2026-10-02 |
| 188.184.0.0/16 | Switzerland | valid | 18 | 2026-10-02 |
| 188.185.0.0/16 | Switzerland | valid | 18 | 2026-10-02 |
| 192.16.155.0/24 | Switzerland | valid | 18 | 2026-10-02 |
| 192.16.156.0/22 | Switzerland | valid | 18 | 2026-10-02 |
| 192.16.160.0/22 | Switzerland | valid | 18 | 2026-10-02 |
| 192.16.164.0/23 | Switzerland | valid | 18 | 2026-10-02 |
| 192.16.166.0/24 | Switzerland | valid | 18 | 2026-10-02 |
| 192.65.183.0/24 | Switzerland | valid | 18 | 2026-10-02 |
| 192.65.184.0/21 | Switzerland | valid | 18 | 2026-10-02 |
| 192.65.192.0/22 | Switzerland | valid | 18 | 2026-10-02 |
| 192.65.196.0/23 | Switzerland | valid | 18 | 2026-10-02 |
| 192.91.236.0/22 | Switzerland | valid | 18 | 2026-10-02 |
| 192.91.240.0/22 | Switzerland | valid | 18 | 2026-10-02 |
| 192.91.244.0/23 | Switzerland | valid | 18 | 2026-10-02 |
| 192.91.246.0/24 | Switzerland | valid | 18 | 2026-10-02 |
| 194.12.128.0/18 | Switzerland | valid | 18 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:1458::/32 | Switzerland | valid | 20 | 2026-10-02 |
| 2001:1459::/32 | Switzerland | valid | 20 | 2026-10-02 |
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