AS9591 NIFS National Institute for Fusion Science

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Org handle: A91A7381

National Institute for Fusion Science

APNICallocated

Announced Prefixes (BGP)

2total

2 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)0

Announced (BGP)65,792

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

1999-08-05

Announced Prefixes

(BGP)2

Prefix	RPKI	IRR	Last Seen
133.75.0.0/16	Valid	Other IRR	2026-10-11
133.75.232.0/24	Valid	-	2026-10-11

(seen in AS paths)

Networks AS9591 hands its own prefixes to: transit providers, or peers at an exchange.

AS2907SINET Research Organization Of Information And Systems, National Institute Of Informatics1
AS7690MIRAI Communication Network1

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 AS9591 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/9591" | jq