ResearchIRR · RIPE

AS-CF-UK Cityfbre UK Customers

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

Members

What AS-CF-UK lists

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

AS204018 Cityfibre
Expanded

Every AS it reaches

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

Show the 1 ASes
AS204018
Prefixes

What AS-CF-UK covers

Every route object in the IRR whose origin is one of the 1 ASes it reaches: the prefixes a filter built from AS-CF-UK (with bgpq4, say) would allow. 19 IPv4 and 3 IPv6. Every one is in the IRR API.

19 IPv4 prefixes
156.67.240.0/24156.67.242.0/24156.67.243.0/24156.67.244.0/24156.67.245.0/24156.67.246.0/24156.67.247.0/24156.67.248.0/24156.67.249.0/24156.67.250.0/24156.67.251.0/24156.67.252.0/24156.67.253.0/24156.67.254.0/24156.67.255.0/24185.129.72.0/24185.220.12.0/24185.220.14.0/2479.143.157.0/24
3 IPv6 prefixes
2a05:8945::/322a05:8946::/322a05:8947::/32
Registries

Each registry’s copy

RIPE1 membersCityfbre UK Customers
Maintained byMNT-CITYFIBRE
Last modified2016-03-09T17:01:46Z
MembersAS204018
mbrs-by-refN
Used by

Sets that include AS-CF-UK

AS-CENTRILOGIC:AS-CUSTOMERS
Tools

Check AS-CF-UK live

IRR API, with prefixes