新規契約・機種変更・MNP・プラン変更の違い
混同されやすい4つの手続きを並べて比較します。
メニュー、ラベル、ガイド本文は選択した言語で表示されます。キャリア名・プラン名などの固有名詞は公式表記のまま表示されることがあります。
Four procedures, side by side
New Contract
- 通信事業者
- New
- Number
- Usually new
- 端末
- Optional
Device Upgrade
- 通信事業者
- Same
- Number
- Same
- 端末
- New
MNP
- 通信事業者
- 改定
- Number
- Kept
- 端末
- Optional
Plan Change
- 通信事業者
- Same group
- Number
- Same
- 端末
- Unchanged
Plan Change is not the same as MNPMNP changes your carrier and keeps your number. Plan Change keeps your carrier or brand group and only swaps the pricing plan. Different teams, different rules.
Changing plans within the same mobile group
Same company from the outside — different teams and rules inside.
Main brandFull store support, higher price
Online-focused planSame network, online procedures
Low-cost brand / sub-brandOwn shops or online, lower price
One plan can have several routes in
Direct online application
You sign up on the plan's website or app.
MNP switch-in
You apply as an MNP customer, keeping your number.
Plan change from an existing line
You already have a line in the same group and switch plan in the app.
In-store web assistance
Staff help you operate the online application. A fee may apply.
Some electronics-store counters
A limited set of shops may accept applications for certain brands.
関連ガイド