Home Prefix Lookup37.221.192.0/21

37.221.192.0/21 - Netcup (AS197540)

IPv4RIPE NCCallocatedAS197540netcup-AS netcup GmbH RPKI Valid

CIDR

37.221.192.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇩🇪 Germany

City

Nuremberg

RIR

RIPE NCC

Status

allocated

Allocated

2012-04-10

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
37.221.192.0/21	AS197540 netcup-AS netcup GmbH	Valid	RIPE	2026-10-11

More-Specific Announcements

2 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
37.221.192.0/22	AS197540 netcup-AS netcup GmbH	Valid	-	2026-10-11
37.221.196.0/22	AS197540 netcup-AS netcup GmbH	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
37.221.192.0/21	AS197540	/32	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS197540	RIPE	NETCUP-MNT	2012-04-10

More Specific Prefixes

Prefix	AS	Country	Status
37.221.192.0/22	AS197540	🇩🇪DE	assigned
37.221.196.0/22	AS197540	🇩🇪DE	assigned

Origin ASN

AS197540

netcup-AS netcup GmbH

Related Prefixes

More prefixes of AS197540

All prefixes of AS197540 →

Geolocation

Country🇩🇪GermanyDE

CityNuremberg

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/37.221.192.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/37.221.192.0/21" | jq

External Links

RIPEstat