合同会社J&J

J and J spa

GLEIF verified

LEI

54930064E7PFLVYM3U94

Registered name

合同会社J&J

Jurisdiction

Ultimate parent

No parent on file in GLEIF

Cluster stats

Netblocks	5
All fragments	10 blocks across 5 clusters
Cluster ID	205386346
Registry	RIPE
Owner jurisdiction	JP
Customers	find customers using this network →

Evidence & provenance ?

Attribution	GLEIF legal-entity match
Legal identity	LEI 54930064E7PFLVYM3U94
Shared handles	clustered on 6 shared RIR contact/maintainer handles
Registry names	2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (5)

⬇ export CSV

CIDR	Org name	Registry	Status	Confidence
151.242.242.0/24	J and J spa	RIPE	ASSIGNED PA	● high
31.121.9.112/29	J-AND-J	RIPE	ASSIGNED PA	● low
2a00:2381:c8be::/48	J-AND-J	RIPE	AGGREGATED-BY-LIR	● low
2a00:2381:d03b::/56	J-AND-J	RIPE	ASSIGNED	● low
2a00:2381:d03b::/48	J-AND-J	RIPE	AGGREGATED-BY-LIR	● low

Network trust

what's this?

RPKI hygiene: A how networks compare →

100.0% of checked blocks have valid RPKI ROA coverage (5 of 5)

Possible discrepancies (4)

These blocks are registered to J and J spa but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2a00:2381:c8be::/48 /48	authorized for AS2856 — British Telecommunications Limited
2a00:2381:d03b::/48 /48	authorized for AS2856 — British Telecommunications Limited
2a00:2381:d03b::/56 /56	authorized for AS2856 — British Telecommunications Limited
151.242.242.0/24 /24	authorized for AS270013 — AS270013

NIC Handles

BTNET-MNT DUMY-RIPE DUMY-RIPE JAJS3-RIPE ORG-JAJS1-RIPE netutils-mnt