AS18069 — SOFTBANK SB Technology Corp.

AS18069 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

SOFTBANK is operated by SoftBank Corp., a major Japanese telecommunications provider.

What it's used for

• The address space is registered under the netname SOFTBANK-NET-CIDR-BLK-JP, indicating it carries SoftBank's corporate or mobile infrastructure traffic.
• The AS announces a single IPv4 prefix, 133.217.192.0/24, comprising 256 addresses, with 2 observed routing neighbours. This small inventory relative to the operator's scale suggests this specific AS number is used for a limited internal segment or specific service rather than primary consumer access.

Notable

• The RDAP registrant is listed as Japan Network Information Center; IRT-JPNIC-JP, which is the registry authority for the address block, while the AS holder is SB Technology Corp. (a subsidiary of SoftBank Corp.).
• The address inventory consists of a single /24 block, which is a fine-grained subdivision typical of internal corporate estate management or specific service allocation within a larger carrier network.

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

Announced prefixes

• 133.217.192.0/24

Upstream networks

• AS4713 NTT DOCOMO BUSINESS,Inc.
• AS10010 TOKAI Communications Corporation

Adjacent networks

• AS4713 NTT DOCOMO BUSINESS,Inc.
• AS10010 TOKAI Communications Corporation

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 1 route objects.
• Listed in as-sets: AS-GIGAINFRA, AS-IIJ, AS-KDD, AS-KDDI6, AS-MESH-CUSTOMER:AS10010, AS-OCN, AS-OCN, AS-TELSTRA-INTL-CUSTOMERS, AS-TOKAI, AS2497:AS-IIJ.