Home Prefix Lookup2a01:4642:100::/40

2a01:4642:100::/40

🇨🇭

CIDR

2a01:4642:100::/40

IP Version

IPv6

Addresses

309.4Y

Mask

/40

Country

🇨🇭 Switzerland

City

Zurich (Zürich)

RIR

RIPE

Status

assigned

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
2a01:4642:100::/40	AS20743SWX SIX Swiss Exchange AG	Valid	RIPE	5/30/2026

Prefix	Origin	Max Length	Trust Anchor
2a01:4642:100::/40	AS9042	/40	ripe
2a01:4642:100::/40	AS19905	/48	ripe
2a01:4642:100::/40	AS20743	/40	ripe

Origin	Registry	Maintainer	Modified
AS19905	RADB	MAINT-AS19905	11/13/2023
AS19905	RIPE	SIX-GROUP-MNT	7/25/2025
AS20743	RIPE	SIX-GROUP-MNT	4/28/2022

Origin ASN

Geolocation

Country🇨🇭SwitzerlandCH

RegionZurich

CityZurich (Zürich)

Abuse Contact

API

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/2a01:4642:100::/40" | jq

External Links