Home Prefix Lookup192.172.221.0/24

192.172.221.0/24 - BGP Prefix (MOAS)

IPv4ARINallocatedMOAS RPKI Valid

CIDR

192.172.221.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Cypress

RIR

ARIN

Status

allocated

Allocated

2023-06-12

Announced BGP Routes

2 of 2 routes

MOAS - 2 origin ASNs

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
192.172.221.0/24	AS16509 AMAZON-02 - Amazon.com, Inc.	Invalid	-	2026-10-20
192.172.221.0/24	AS20473 AS-VULTR - The Constant Company, LLC	Valid	ARIN	2026-10-20

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
192.172.221.0/24	AS20473	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS20473	ARIN	MNT-CB-1537	2026-08-26

Transfer History

Registry transfers of 192.172.221.0/24, blocks inside it, or blocks containing it.

192.172.221.0/24Transfer · 2023-06-12
MIZAR, LLC
🇺🇸 US ARIN
→
CROSSWIRE HUB
🇺🇸 US ARIN
192.172.221.0/24M&A · 2023-03-20
Mizar Graphics, Inc.
🇺🇸 US ARIN
→
MIZAR, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2023-06-12	192.172.221.0/24	MIZAR, LLC 🇺🇸 US ARIN	CROSSWIRE HUB 🇺🇸 US ARIN	Transfer
2023-03-20	192.172.221.0/24	Mizar Graphics, Inc. 🇺🇸 US ARIN	MIZAR, LLC 🇺🇸 US ARIN	M&A

Origin ASNs (2)

AS16509MOAS

AMAZON-02 - Amazon.com, Inc.

AS20473MOAS

AS-VULTR - The Constant Company, LLC

Geolocation

Country🇺🇸United StatesUS

RegionCalifornia

CityCypress

Coordinates33.8206, -118.0500 ↗

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/192.172.221.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/192.172.221.0/24" | jq

External Links

RIPEstat