ResearchIRR · RIPE

AS-FAST2HOST Fast2host

An as-set registered in RIPE, maintained by MNT-FAST2HOST. It names 1 AS and 0 sets directly; followed all the way down, it reaches 1 ASes through 0 nested sets.

Members

What AS-FAST2HOST lists

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

AS48825 fast2host
Expanded

Every AS it reaches

What a filter built from AS-FAST2HOST would let in: 1 ASes.

Show the 1 ASes
AS48825
Prefixes

What AS-FAST2HOST covers

Every route object in the IRR whose origin is one of the 1 ASes it reaches: the prefixes a filter built from AS-FAST2HOST (with bgpq4, say) would allow. 10 IPv4 and 1 IPv6. Every one is in the IRR API.

10 IPv4 prefixes
185.4.48.0/2295.128.128.0/2195.128.128.0/2495.128.129.0/2495.128.130.0/2495.128.131.0/2495.128.132.0/2495.128.133.0/2495.128.134.0/2495.128.135.0/24
1 IPv6 prefix
2a02:64c0::/32
Registries

Each registry’s copy

RIPE1 membersFast2host
Maintained byMNT-FAST2HOST
Last modified2025-07-20T11:17:25Z
MembersAS48825
mbrs-by-refN
Used by

Sets that include AS-FAST2HOST

AS-SET-LONAP-CONNECTEDAS-SET-LONAP-MLPAS-SET-LONAP-MLP-V6AS1299:AS-TWELVE99-EU-V4AS1299:AS-TWELVE99-EU-V6AS212635:AS-BGP-EXCHANGE-FRANKFURT-RS
Tools

Check AS-FAST2HOST live

IRR API, with prefixes