Home Prefix Lookup38.211.216.0/21

38.211.216.0/21 - United (AS328442)

IPv4ARINannouncedAS328442United SA - United SA RPKI Valid

CIDR

38.211.216.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇬🇧 United Kingdom

City

London

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
38.211.216.0/21	AS328442 United SA - United SA	Valid	ARINOther IRR	2026-10-11

Related Announcements

1 less-specific, 8 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
38.0.0.0/8	AS174 COGENT-174 - Cogent Communications, LLC	No ROA	-	2026-10-11
38.211.216.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11
38.211.217.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11
38.211.218.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11
38.211.219.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11
38.211.220.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11
38.211.221.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11
38.211.222.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11
38.211.223.0/24	AS328442 United SA - United SA	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
38.211.216.0/21	AS328442	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS328442	ARIN	MNT-COGC	2026-06-23
AS328442	Other IRR	MAINT-AS174	2024-12-30

Transfer History

Registry transfers of 38.211.216.0/21, blocks inside it, or blocks containing it.

38.0.0.0/8M&A · 2025-09-23
PSINet, Inc.
🇺🇸 US ARIN
→
Cogent Communications
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-09-23	38.0.0.0/8	PSINet, Inc. 🇺🇸 US ARIN	Cogent Communications 🇺🇸 US ARIN	M&A

Origin ASN

AS328442

United SA - United SA

Related Prefixes

Covering prefix

38.0.0.0/8AS174

More prefixes of AS328442

All prefixes of AS328442 →

Geolocation

Country🇬🇧United KingdomGB

RegionEngland

CityLondon

Coordinates51.5072, -0.1276 ↗

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 ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/38.211.216.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/38.211.216.0/21" | jq

External Links

RIPEstat