AS15143 — TOMORIN

AS15143 announces 2 IPv4 prefixes covering 1,024 addresses and 1 IPv6 prefixes.

About this network

The registrant is withheld, and the netname prints the block and its prefix length anyway.

What it's used for

• A small hosting network. One IPv4 /23 and one IPv6 /44 announced from the United States, with three observed BGP neighbours.

Notable

• The registrant field reads Private Customer, a redaction rather than an organisation.
• The netname on that same block is NET-151-242-224-0-23, which spells out the network address and the prefix length in full.
• The IPv6 prefix comes from an allocation unrelated to the IPv4 block and has no registry entry alongside it.
• Three addresses were queried for reverse DNS and none returned a name.

Interesting

• Redacting the registrant while printing the address in the netname is the recurring contradiction in this corpus. The privacy control covers the one field a human reads and leaves the mechanical one untouched, so the record withholds a name and volunteers the exact block it applies to.
• A redacted registrant means nothing can be said about who holds the space, which is different from saying nobody does. Anything treating the redaction as missing data will drop this block from a count that should include it.
• Three upstreams for five hundred addresses is generous transit for a network this size, and the IPv6 allocation is far larger than the IPv4 one, which is the usual asymmetry once a holder takes IPv6 at all.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 31.42.88.0/23
• 151.242.224.0/23
• 2a0b:4340:5b0::/44

Upstream networks

• AS18423 RAID Networks Co., Ltd.
• AS140096 JINX CO., LIMITED
• AS983 Akari Networks LLC

Adjacent networks

• AS18423 RAID Networks Co., Ltd.
• AS140096 JINX CO., LIMITED
• AS983 Akari Networks LLC