Home Prefix Lookup81.31.32.0/20

81.31.32.0/20

🇨🇿

IPv4RIPENCCallocatedAS24971MASTER-AS MasterDC s.r.o. RPKI Valid

CIDR

81.31.32.0/20

IP Version

IPv4

Addresses

4K

Mask

/20 (255.255.240.0)

Country

🇨🇿 Czechia

City

Brno střed

RIR

RIPENCC

Status

allocated

Allocated

5/28/2002

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
81.31.32.0/20	AS24971MASTER-AS MasterDC s.r.o.	Valid	RIPE	5/31/2026

RPKI ROAs

1

Prefix	Origin	Max Length	Trust Anchor
81.31.32.0/20	AS24971	/20	ripe

IRR Route Objects

1

Origin	Registry	Maintainer	Modified
AS24971	RIPE	MASTER-MNT	6/17/2002

More Specific Prefixes

100

Prefix	AS	Country	Status
81.31.40.0/24		🇨🇿CZ	assigned
81.31.38.0/25		🇨🇿CZ	assigned
81.31.42.0/25		🇨🇿CZ	assigned
81.31.32.0/25		🇨🇿CZ	assigned
81.31.41.0/25		🇨🇿CZ	assigned
81.31.33.0/26		🇨🇿CZ	assigned
81.31.44.0/26		🇨🇿CZ	assigned
81.31.45.64/26		🇨🇿CZ	assigned
81.31.35.192/26		🇨🇿CZ	assigned
81.31.46.128/26		🇨🇿CZ	assigned
81.31.33.160/27		🇨🇿CZ	assigned
81.31.47.128/27		🇨🇿CZ	assigned
81.31.32.160/27		🇨🇿CZ	assigned
81.31.32.128/27		🇨🇿CZ	assigned
81.31.41.128/27		🇨🇿CZ	assigned
81.31.47.96/27		🇨🇿CZ	assigned
81.31.46.32/27		🇨🇿CZ	assigned
81.31.45.32/27		🇨🇿CZ	assigned
81.31.45.0/27		🇨🇿CZ	assigned
81.31.36.0/27		🇨🇿CZ	assigned
81.31.37.96/27		🇨🇿CZ	assigned
81.31.44.96/27		🇨🇿CZ	assigned
81.31.47.0/27		🇨🇿CZ	assigned
81.31.43.96/27		🇨🇿CZ	assigned
81.31.45.192/27		🇨🇿CZ	assigned
81.31.39.224/27		🇨🇿CZ	assigned
81.31.36.32/27		🇨🇿CZ	assigned
81.31.47.160/27		🇨🇿CZ	assigned
81.31.37.64/27		🇨🇿CZ	assigned
81.31.35.128/27		🇨🇿CZ	assigned
81.31.38.128/27		🇨🇿CZ	assigned
81.31.35.96/27		🇨🇿CZ	assigned
81.31.46.192/27		🇨🇿CZ	assigned
81.31.34.64/27		🇨🇿CZ	assigned
81.31.34.160/28		🇨🇿CZ	assigned
81.31.33.80/28		🇨🇿CZ	assigned
81.31.36.64/28		🇨🇿CZ	assigned
81.31.38.240/28		🇨🇿CZ	assigned
81.31.39.0/28		🇨🇿CZ	assigned
81.31.39.192/28		🇨🇿CZ	assigned
81.31.44.64/28		🇨🇿CZ	assigned
81.31.45.128/28		🇨🇿CZ	assigned
81.31.45.176/28		🇨🇿CZ	assigned
81.31.47.48/28		🇨🇿CZ	assigned
81.31.39.96/28		🇨🇿CZ	assigned
81.31.42.128/28		🇨🇿CZ	assigned
81.31.42.208/28		🇨🇿CZ	assigned
81.31.43.144/28		🇨🇿CZ	assigned
81.31.35.176/28		🇨🇿CZ	assigned
81.31.36.224/28		🇨🇿CZ	assigned
81.31.33.128/28		🇨🇿CZ	assigned
81.31.33.144/28		🇨🇿CZ	assigned
81.31.33.192/28		🇨🇿CZ	assigned
81.31.34.0/28		🇨🇿CZ	assigned
81.31.34.112/28		🇨🇿CZ	assigned
81.31.34.144/28		🇨🇿CZ	assigned
81.31.36.80/28	AS24971	🇨🇿CZ	assigned
81.31.36.96/28	AS24971	🇨🇿CZ	assigned
81.31.36.112/28		🇨🇿CZ	assigned
81.31.36.128/28		🇨🇿CZ	assigned
81.31.36.160/28		🇨🇿CZ	assigned
81.31.37.128/28		🇨🇿CZ	assigned
81.31.37.224/28		🇨🇿CZ	assigned
81.31.37.240/28		🇨🇿CZ	assigned
81.31.38.160/28		🇨🇿CZ	assigned
81.31.38.176/28		🇨🇿CZ	assigned
81.31.38.208/28		🇨🇿CZ	assigned
81.31.39.64/28		🇨🇿CZ	assigned
81.31.39.208/28		🇨🇿CZ	assigned
81.31.43.48/28		🇨🇿CZ	assigned
81.31.43.64/28		🇨🇿CZ	assigned
81.31.43.192/28		🇨🇿CZ	assigned
81.31.43.208/28		🇨🇿CZ	assigned
81.31.45.144/28		🇨🇿CZ	assigned
81.31.46.224/28		🇨🇿CZ	assigned
81.31.47.32/28		🇨🇿CZ	assigned
81.31.47.208/28		🇨🇿CZ	assigned
81.31.38.224/28		🇨🇿CZ	assigned
81.31.46.0/28		🇨🇿CZ	assigned
81.31.46.64/28		🇨🇿CZ	assigned
81.31.44.80/28		🇨🇿CZ	assigned
81.31.43.184/29	AS24971	🇨🇿CZ	assigned
81.31.34.136/29		🇨🇿CZ	assigned
81.31.36.248/29		🇨🇿CZ	assigned
81.31.38.200/29		🇨🇿CZ	assigned
81.31.36.216/29		🇨🇿CZ	assigned
81.31.39.48/29		🇨🇿CZ	assigned
81.31.36.208/29		🇨🇿CZ	assigned
81.31.39.112/29		🇨🇿CZ	assigned
81.31.39.120/29		🇨🇿CZ	assigned
81.31.39.160/29		🇨🇿CZ	assigned
81.31.39.184/29		🇨🇿CZ	assigned
81.31.35.168/29		🇨🇿CZ	assigned
81.31.37.40/29		🇨🇿CZ	assigned
81.31.33.216/29		🇨🇿CZ	assigned
81.31.36.144/29		🇨🇿CZ	assigned
81.31.33.72/29		🇨🇿CZ	assigned
81.31.36.240/29		🇨🇿CZ	assigned
81.31.37.0/29		🇨🇿CZ	assigned
81.31.37.24/29		🇨🇿CZ	assigned

Origin ASN

MASTER-AS MasterDC s.r.o.

Geolocation

Country🇨🇿CzechiaCZ

RegionSouth Moravian

CityBrno střed

Coordinates49.2014, 16.5960 ↗

Abuse Contact

API

GEThttps://api.ipctl.io/v1/prefix/81.31.32.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/81.31.32.0/20" | jq

External Links

RIPEstat Hurricane Electric BGP