Home Prefix Lookup205.132.248.0/21

205.132.248.0/21 - CENIC (AS2152)

IPv4ARINallocatedAS2152CENIC-2152 - CENIC RPKI Valid

CIDR

205.132.248.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Ashburn

RIR

ARIN

Status

allocated

Allocated

1995-08-07

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
205.132.248.0/21	AS2152 CENIC-2152 - CENIC	Valid	ARINOther IRR	2026-10-12

More-Specific Announcements

2 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
205.132.248.0/24	AS399144 SUHSD-INTERNET-2026 - Sequoia Union High School District	Valid	-	2026-10-12
205.132.254.0/24	AS399144 SUHSD-INTERNET-2026 - Sequoia Union High School District	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
205.132.248.0/21	AS2152	/21	arin
205.132.248.0/21	AS7018	/21	arin
205.132.248.0/21	AS399144	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS399144	ARIN	MNT-SUHSD-Z	2026-06-13
AS2152	ARIN	MNT-SUHSD-Z	2026-05-30
AS7018	ARIN	MNT-SUHSD-Z	2026-03-03
AS2152	Other IRR	MAINT-AS2150	2023-11-13

Origin ASN

AS2152

CENIC-2152 - CENIC

Related Prefixes

More prefixes of AS2152

All prefixes of AS2152 →

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 ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/205.132.248.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/205.132.248.0/21" | jq

External Links

RIPEstat