Home Prefix Lookup81.24.0.0/20

81.24.0.0/20 - CYSO Group B.V (AS25151)

IPv4RIPE NCCallocatedAS25151CYSO-AS Cyso Group B.V. RPKI Valid

CIDR

81.24.0.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇳🇱 Netherlands

RIR

RIPE NCC

Status

allocated

Allocated

2008-02-22

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
81.24.0.0/20	AS25151 CYSO-AS Cyso Group B.V.	Valid	RIPE	2026-10-11

More-Specific Announcements

8 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
81.24.0.0/22	AS25151 CYSO-AS Cyso Group B.V.	Valid	-	2026-10-11
81.24.4.0/22	AS25151 CYSO-AS Cyso Group B.V.	Valid	-	2026-10-11
81.24.4.0/24	AS25151 CYSO-AS Cyso Group B.V.	Valid	-	2026-10-11
81.24.6.0/23	AS25151 CYSO-AS Cyso Group B.V.	Valid	-	2026-10-11
81.24.8.0/22	AS25151 CYSO-AS Cyso Group B.V.	Valid	-	2026-10-11
81.24.9.0/24	AS25151 CYSO-AS Cyso Group B.V.	Valid	-	2026-10-11
81.24.10.0/23	AS25151 CYSO-AS Cyso Group B.V.	Valid	-	2026-10-11
81.24.12.0/22	AS44694 FUGA_NL_1 Cyso Group B.V.	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
81.24.0.0/20	AS25151	/24	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS25151	RIPE	FUGA-MNT	2019-06-26

More Specific Prefixes

Prefix	AS	Country	Status
81.24.0.0/22	AS25151	🇳🇱NL	assigned
81.24.4.0/22	AS25151	🇳🇱NL	assigned
81.24.8.0/22	AS25151	🇳🇱NL	assigned
81.24.12.0/22	AS44694	🇩🇪DE	assigned

Transfer History

Registry transfers of 81.24.0.0/20, blocks inside it, or blocks containing it.

81.24.0.0/20Transfer · 2024-12-24
Fuga b.v.
RIPE NCC
→
Cyso Group B.V.
RIPE NCC
81.24.0.0/20M&A · 2019-01-10
SQR B.V.
RIPE NCC
→
Fuga b.v.
RIPE NCC

Date	Resource	From	To	Type
2024-12-24	81.24.0.0/20	Fuga b.v. RIPE NCC	Cyso Group B.V. RIPE NCC	Transfer
2019-01-10	81.24.0.0/20	SQR B.V. RIPE NCC	Fuga b.v. RIPE NCC	M&A

Origin ASN

AS25151

CYSO-AS Cyso Group B.V.

Related Prefixes

More prefixes of AS25151

All prefixes of AS25151 →

Geolocation

Country🇳🇱NetherlandsNL

Coordinates52.1326, 5.2913 ↗

Abuse Contact

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the RIPE NCC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/81.24.0.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/81.24.0.0/20" | jq

External Links

RIPEstat