Home Prefix Lookup203.17.123.0/24

203.17.123.0/24 - Internet 3 Simoresta UAB (AS212384)

IPv4ARINallocatedAS212384Internet-3 Simoresta UAB RPKI Valid

CIDR

203.17.123.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Atlanta

RIR

ARIN

Status

allocated

Allocated

2021-11-01

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.17.123.0/24	AS212384 Internet-3 Simoresta UAB	Valid	ARINOther IRR	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.17.123.0/24	AS211440	/24	arin
203.17.123.0/24	AS212384	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS212384	ARIN	MNT-DCL-577	2025-01-07
AS211440	ARIN	MNT-DCL-577	2025-01-07
AS211440	Other IRR	MAINT-AS834	2023-11-13
AS212384	Other IRR	MAINT-AS834	2023-11-13

Transfer History

Registry transfers of 203.17.123.0/24, blocks inside it, or blocks containing it.

203.17.123.0/24inter-RIRTransfer · 2021-11-01
Event Zero
🇦🇺 AU APNIC
→
Rockion LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2021-11-01	203.17.123.0/24inter-RIR	Event Zero 🇦🇺 AU APNIC	Rockion LLC 🇺🇸 US ARIN	Transfer

Origin ASN

AS212384

Internet-3 Simoresta UAB

Related Prefixes

More prefixes of AS212384

All prefixes of AS212384 →

Geolocation

Country🇺🇸United StatesUS

CityAtlanta

Coordinates33.7501, -84.3885 ↗

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/203.17.123.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/203.17.123.0/24" | jq

External Links

RIPEstat