ResearchIRR · RIPE

AS-KROOT AS number used for the k.root-servers.net…

An as-set registered in RIPE, maintained by RIPE-NCC-DNS-MNT. It names 1 AS and 0 sets directly; followed all the way down, it reaches 1 ASes through 0 nested sets.

Members

What AS-KROOT lists

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

AS25152 K-ROOT-SERVER
Expanded

Every AS it reaches

What a filter built from AS-KROOT would let in: 1 ASes.

Show the 1 ASes
AS25152
Prefixes

What AS-KROOT covers

Every route object in the IRR whose origin is one of the 1 ASes it reaches: the prefixes a filter built from AS-KROOT (with bgpq4, say) would allow. 6 IPv4 and 6 IPv6. Every one is in the IRR API.

6 IPv4 prefixes
193.0.14.0/23193.0.14.0/24193.0.15.0/24193.0.16.0/23193.0.16.0/24193.0.17.0/24
6 IPv6 prefixes
2001:7fd:15::/482001:7fd:16::/482001:7fd:17::/482001:7fd::/322001:7fd::/482001:7fd:ffff::/48
Registries

Each registry’s copy

RIPE1 membersAS number used for the k.root-servers.net anycast service
Maintained byRIPE-NCC-DNS-MNT
Last modified2026-01-15T13:10:42Z
MembersAS25152
mbrs-by-refN
Used by

Sets that include AS-KROOT

AS-ASIATECHAS-CINX-RSAS-DINX-RSAS-INTERDOTLINKAS-JAGUAR-PEERING-V6-CIXPAS-JINX-RSAS-LTTUKPEERSAS-RIX-RSAS-SET-LONAP-CONNECTEDAS-SET-LONAP-MLPAS-SET-LONAP-MLP-V6AS-SET-SAIX-CONNECTEDAS-SET-SAIX-RSAS12969:AS-RIXAS16374:AS-BCIX-ALLAS16374:AS-BCIX-RSAS213973:AS-BCIXAS25291:AS-SYSELEVENAS30781:AS-JAGUAR-PEERING-AMS-IXAS30781:AS-JAGUAR-PEERING-V6-AMS-IXAS393752:AS-DECIX-RICAS393752:AS-DECIX-RIC-V6AS42476:AS-SWISSIXAS42476:AS-SWISSIX-V6AS43892:AS-BASIS-PEERSAS5405:AS-INTERDOTLINKAS61374:AS-UAEIXAS61374:AS-UAEIX-V6AS62193:AS-BCIXAS6695:AS-DECIX-FRAAS6695:AS-DECIX-FRA-V6
Tools

Check AS-KROOT live

IRR API, with prefixes