Home Prefix Lookup2a03:3b40:200::/39

2a03:3b40:200::/39 - MASTER MasterDC S.R.O (AS24971)

IPv6RIPE NCCannouncedAS24971MASTER-AS MasterDC s.r.o. RPKI Valid

CIDR

2a03:3b40:200::/39

IP Version

IPv6

Addresses

618.9Y

Mask

/39

Country

🇨🇿 Czechia

City

Prague

RIR

RIPE NCC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
2a03:3b40:200::/39	AS24971 MASTER-AS MasterDC s.r.o.	Valid	RIPE	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2a03:3b40:200::/39	AS24971	/39	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS24971	RIPE	MASTER-MNT	2017-05-28

More Specific Prefixes

Prefix	AS	Country	Status
2a03:3b40:200::/40		🇨🇿CZ	assigned
2a03:3b40:300::/40		🇸🇰SK	assigned

Origin ASN

AS24971

MASTER-AS MasterDC s.r.o.

Related Prefixes

More prefixes of AS24971

All prefixes of AS24971 →

Geolocation

Country🇨🇿CzechiaCZ

RegionPrague

CityPrague

Coordinates50.0755, 14.4378 ↗

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/2a03:3b40:200::/39

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

curl -s "https://api.ipctl.io/v1/prefix/2a03:3b40:200::/39" | jq

External Links

RIPEstat