666clouds Japan SoftBank VPS Complete Guide

What Is the Japan SoftBank VPS?

666clouds' Japan location runs on SoftBank lines, offering two product types: native SoftBank lines supporting TikTok and ChatGPT, and "Unicom-optimized" lines tuned for mainland China Unicom users (native IP not guaranteed, BBR not installed by default — manual installation required). Four tiers from ¥48/mo.

⚠️ The Unicom-optimized series does not install BBR by default — be sure to install it manually for expected network quality.

Key Features

Plan Overview

PlanCPURAMBandwidthTrafficMonthly
SoftBank - Unicom Preferred1 core1GB1000Mbps1TB¥48
SoftBank Standard1 core1GB500Mbps1TB¥55
SoftBank High Traffic - Unicom Boost1 core1GB1000Mbps2TB¥80
SoftBank 4C4G4 cores4GB500Mbps2TB¥200

The Unicom Preferred at ¥48/mo is the cheapest with a gigabit port; the Standard at ¥55/mo is the native SoftBank line supporting TikTok/ChatGPT but with bandwidth reduced to 500Mbps.

Use Cases

Lowest price for Unicom users

Choose the ¥48/mo Unicom Preferred — gigabit port + Unicom optimization, but requires manual BBR installation and native IP is not guaranteed.

Pure TikTok/ChatGPT outbound use

Choose the ¥55/mo Standard — native SoftBank line with no domestic acceleration, better suited for pure overseas apps.

Unicom users with heavy traffic

Choose the ¥80/mo Unicom Boost — traffic doubles to 2TB with gigabit port.

Need more compute

Choose the ¥200/mo 4C4G — the only multi-core, multi-GB plan in this category, suited for multi-instance or lightweight app hosting.

How to Choose a Plan

Conclusion

Unicom users chasing the lowest price should choose the ¥48/mo Unicom Preferred. For pure TikTok/ChatGPT outbound use, choose the ¥55/mo Standard. Unicom users with heavier traffic should choose the ¥80/mo Unicom Boost. Need more compute: choose the ¥200/mo 4C4G. Note: the Unicom-optimized series requires manual BBR installation.