ResearchIRR · RIPE

AS-CERN CERN - European Organization for Nuclear Research

An as-set registered in RIPE, maintained by CERN-MNT. It names 5 ASes and 0 sets directly; followed all the way down, it reaches 5 ASes through 0 nested sets.

Members

What AS-CERN lists

5 ASes and 0 sets, written in the object across every registry that holds it. Sets open their own page.

AS513 CERN CERNAS1297 CERN1297 CERNAS20641 LHCONE-CERN CERNAS57859 CIXP-RS CERNAS61339 CERN-LHCONE-LG CERN
Expanded

Every AS it reaches

What a filter built from AS-CERN would let in: 5 ASes.

Show the 5 ASes
AS513AS1297AS20641AS57859AS61339
Prefixes

What AS-CERN covers

Every route object in the IRR whose origin is one of the 5 ASes it reaches: the prefixes a filter built from AS-CERN (with bgpq4, say) would allow. 23 IPv4 and 3 IPv6. Every one is in the IRR API.

23 IPv4 prefixes
128.141.0.0/16128.142.0.0/16137.138.0.0/16185.249.56.0/22188.184.0.0/15188.184.0.0/16188.185.0.0/16188.185.32.0/20188.185.64.0/18192.16.155.0/24192.16.156.0/22192.16.160.0/22192.16.164.0/23192.16.166.0/24192.65.183.0/24192.65.184.0/21192.65.192.0/22192.65.196.0/23192.91.236.0/22192.91.240.0/22192.91.244.0/23192.91.246.0/24194.12.128.0/18
3 IPv6 prefixes
2001:1458::/322001:1459::/322001:67c:2c4::/48
Registries

Each registry’s copy

RIPE5 membersCERN - European Organization for Nuclear Research
Maintained byCERN-MNT
Last modified2022-08-04T07:02:55Z
MembersAS513 AS1297 AS20641 AS57859 AS61339
mbrs-by-refN
Used by

Sets that include AS-CERN

AS-SWCMCHPEERS
Tools

Check AS-CERN live

IRR API, with prefixes