Home Prefix Lookup204.228.192.0/18

204.228.192.0/18 - BGP Prefix

IPv4ARINallocated RPKI Valid

CIDR

204.228.192.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇺🇸 United States

City

Cedar Rapids

RIR

ARIN

Status

allocated

Allocated

2025-07-24

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

13 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
204.228.198.0/23	AS40266 SQN-NET - SpeedyQuick Networks Inc	Valid	-	2026-10-11
204.228.198.0/24	AS40266 SQN-NET - SpeedyQuick Networks Inc	Valid	-	2026-10-11
204.228.199.0/24	AS40266 SQN-NET - SpeedyQuick Networks Inc	Valid	-	2026-10-11
204.228.201.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.220.0/22	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.224.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.226.0/24	AS40266 SQN-NET - SpeedyQuick Networks Inc	Valid	-	2026-10-11
204.228.229.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.230.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.232.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.239.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.244.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11
204.228.248.0/24	AS14230 INVOLTA - ARK Data Centers LLC	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
204.228.192.0/18	AS14230	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS14230	ARIN	MNT-INVOL-1	2025-08-13
AS14230	Other IRR	MAINT-CHTR-WD	2026-06-26

Transfer History

Registry transfers of 204.228.192.0/18, blocks inside it, or blocks containing it.

204.228.192.0/18Transfer · 2025-07-24
University of Idaho
🇺🇸 US ARIN
→
ARK Data Centers LLC
🇺🇸 US ARIN
204.228.192.0/18M&A · 2018-10-29
WestNet, Inc.
🇺🇸 US ARIN
→
University of Idaho
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-07-24	204.228.192.0/18	University of Idaho 🇺🇸 US ARIN	ARK Data Centers LLC 🇺🇸 US ARIN	Transfer
2018-10-29	204.228.192.0/18	WestNet, Inc. 🇺🇸 US ARIN	University of Idaho 🇺🇸 US ARIN	M&A

Geolocation

Country🇺🇸United StatesUS

RegionIowa

CityCedar Rapids

Coordinates41.9779, -91.6656 ↗

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/204.228.192.0/18

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

curl -s "https://api.ipctl.io/v1/prefix/204.228.192.0/18" | jq

External Links

RIPEstat