AS10209 SYNOPSYS-AS-JP-AP Japan HUB and Data Center

🇯🇵

Org handle: ORG-SA28-AP

Japan HUB and Data Center

APNICallocated

Announced Prefixes (BGP)

4total

4 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)0

Announced (BGP)1,280

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

2007-09-25

Announced Prefixes

(BGP)4

Prefix	RPKI	IRR	Last Seen
149.117.1.0/24MOAS	No ROA	-	2026-10-11
198.182.50.0/23	No ROA	-	2026-10-11
198.182.50.0/24	No ROA	-	2026-10-11
198.182.51.0/24	No ROA	-	2026-10-11

(RIR)1

Prefix	Country	RIR	Status
2400:b3c0::/32	🇯🇵 JP	APNIC	allocated

(seen in AS paths)

Networks AS10209 hands its own prefixes to: transit providers, or peers at an exchange.

ASPA

No ASPA

External Links

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS10209 should publish an ASPA object
IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/10209" | jq