Home Prefix Lookup64.251.204.0/24

64.251.204.0/24 - Amazon.Com (AS16509)

IPv4APNICannouncedAS16509AMAZON-02 - Amazon.com, Inc. RPKI Valid

CIDR

64.251.204.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇯🇵 Japan

City

Chiyoda City

RIR

APNIC

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
64.251.204.0/24	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	APNICOther IRR	2026-10-18

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
64.251.192.0/20	AS23467 NEWRELIC-AS-1 - New Relic	Valid	-	2026-10-18

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
64.251.204.0/22	AS14618	/24	apnic
64.251.204.0/22	AS16509	/24	apnic
64.251.192.0/20	AS23467	/24	apnic
64.251.192.0/20	AS152451	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS14618	APNIC	MAINT-NRAPL-AU	2026-08-28
AS16509	APNIC	MAINT-NRAPL-AU	2026-08-28
AS23467	APNIC	MAINT-NRAPL-AU	2024-09-04
AS152451	APNIC	MAINT-NRAPL-AU	2026-05-01
AS16509	Other IRR	MAINT-AS16509	2026-08-29

Transfer History

Registry transfers of 64.251.204.0/24, blocks inside it, or blocks containing it.

64.251.192.0/20inter-RIRTransfer · 2024-05-07
CL-602
ARIN
→
New Relic Australia Pty Ltd
🇦🇺 AU APNIC

Date	Resource	From	To	Type
2024-05-07	64.251.192.0/20inter-RIR	CL-602 ARIN	New Relic Australia Pty Ltd 🇦🇺 AU APNIC	Transfer

Origin ASN

AS16509

AMAZON-02 - Amazon.com, Inc.

Related Prefixes

Covering prefix

64.251.192.0/20AS23467

More prefixes of AS16509

All prefixes of AS16509 →

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityChiyoda City

Coordinates35.6940, 139.7540 ↗

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 APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/64.251.204.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/64.251.204.0/24" | jq

External Links

RIPEstat