Home Prefix Lookup81.31.128.0/20

81.31.128.0/20 - Windstream Communications (AS7029)

IPv4RIPE NCCallocatedAS7029WINDSTREAM - Windstream Communications LLC RPKI Valid

CIDR

81.31.128.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇺🇸 United States

City

Ashburn

RIR

RIPE NCC

Status

allocated

Allocated

2002-05-31

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
81.31.128.0/20	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	RIPE	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
81.31.128.0/20	AS7018	/24	ripe
81.31.128.0/20	AS7029	/20	ripe
81.31.128.0/20	AS7843	/20	ripe
81.31.128.0/20	AS20115	/20	ripe
81.31.128.0/20	AS22773	/20	ripe
81.31.128.0/20	AS43289	/24	ripe
81.31.128.0/20	AS399955	/20	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS22773	Other IRR	MAINT-AS393427	2026-04-08
AS7018	RIPE	lir-md-7reasons-1-MNT	2024-02-05
AS7029	RIPE	lir-md-7reasons-1-MNT	2025-08-01
AS7843	RIPE	lir-md-7reasons-1-MNT	2025-08-01
AS20115	RIPE	lir-md-7reasons-1-MNT	2025-08-01
AS22773	RIPE	lir-md-7reasons-1-MNT	2026-04-07

Transfer History

Registry transfers of 81.31.128.0/20, blocks inside it, or blocks containing it.

81.31.128.0/20Transfer · 2022-02-14
Backbone Internet Services GMBH
RIPE NCC
→
7 REASONS S.R.L.
RIPE NCC

Date	Resource	From	To	Type
2022-02-14	81.31.128.0/20	Backbone Internet Services GMBH RIPE NCC	7 REASONS S.R.L. RIPE NCC	Transfer

Origin ASN

AS7029

WINDSTREAM - Windstream Communications LLC

Related Prefixes

More prefixes of AS7029

All prefixes of AS7029 →

Geolocation

Country🇺🇸United StatesUS

RegionVirginia

CityAshburn

Coordinates39.0438, -77.4874 ↗

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/81.31.128.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/81.31.128.0/20" | jq

External Links

RIPEstat