When do you reset my data plan?



5G Unlimited (KDDI): No daily data reset — effectively unlimited for normal-to-heavy travel under Fair Usage Policy.

4G Unlimited (NTT DOCOMO): Up to 3GB/day at high speed; after 3GB, speed drops to 256 kbps until your allowance refreshes at midnight Japan time (00:00 JST).

Fixed Data plans: No daily reset — fixed total data for the plan period.
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When do you reset my data plan? | Japan Wireless FAQ | Japan Wireless