Home Prefix Lookup153.52.224.0/23

153.52.224.0/23 - Railway (AS400940)

IPv4ARINannouncedAS400940RAILWAY - Railway RPKI Valid

CIDR

153.52.224.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇺🇸 United States

City

Palo Alto (University South)

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
153.52.224.0/23	AS400940 RAILWAY - Railway	Valid	ARIN	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
153.52.224.0/23	AS400940	/32	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS400940	ARIN	MNT-RC-1550	2026-08-25

Transfer History

Registry transfers of 153.52.224.0/23, blocks inside it, or blocks containing it.

153.52.224.0/19Transfer · 2026-06-05
NCR Voyix Corporation
🇺🇸 US ARIN
→
Railway
🇺🇸 US ARIN

Date	Resource	From	To	Type
2026-06-05	153.52.224.0/19	NCR Voyix Corporation 🇺🇸 US ARIN	Railway 🇺🇸 US ARIN	Transfer

Origin ASN

AS400940

RAILWAY - Railway

Related Prefixes

More prefixes of AS400940

All prefixes of AS400940 →

Geolocation

Country🇺🇸United StatesUS

RegionCalifornia

CityPalo Alto (University South)

Coordinates37.4457, -122.1610 ↗

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/153.52.224.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/153.52.224.0/23" | jq

External Links

RIPEstat