AS4675 — U-NETSURF UNIADEX, LTD.

AS4675 announces 13 IPv4 prefixes covering 30,976 addresses and 1 IPv6 prefixes.

About this network

U-NETSURF — UNIADEX, Ltd., a Japanese IT infrastructure services company in the BIPROGY (formerly Nihon Unisys) group, and the operator of the U-netSURF internet service.

What it's used for

• U-netSURF internet connectivity, mail and web outsourcing, and related managed services, sold largely to Japanese businesses.
• UNIADEX's own IT infrastructure and integration work.

Notable

• A corporate-leaning ISP: U-netSURF has run since the mid-1990s and rides on NTT East/West FLET'S fibre access rather than on UNIADEX-owned last mile.
• The address space mixes access customers with hosted services (mail, web, certificates), so it is not a pure eyeball network.

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

Announced prefixes

• 133.247.80.0/21
• 133.247.88.0/23
• 133.247.235.0/24
• 202.73.64.0/19
• 202.233.0.0/19
• 202.233.32.0/20
• 202.233.48.0/23
• 202.233.51.0/24
• 202.233.52.0/22
• 202.233.56.0/23
• 202.233.59.0/24
• 202.233.60.0/22
• 210.166.192.0/20
• 2001:338::/32

Upstream networks

• AS2519 ARTERIA Networks Corporation
• AS17676 SoftBank Corp.
• AS6939 Hurricane Electric LLC
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS20485 Joint Stock Company TransTeleCom

Adjacent networks

• AS2519 ARTERIA Networks Corporation
• AS17676 SoftBank Corp.
• AS6939 Hurricane Electric LLC
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS20485 Joint Stock Company TransTeleCom

Internet exchanges

• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• JPIX Tokyo — Tokyo, Japan
• Network Service Provider IXP (Distributed IX in Edo) — Tokyo, Japan