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[US Short-Term SIM Plan (eSIM)] Steps to Get Started

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SIM / eSIM Short-Term Plan Activation Last updated: June 23, 2025

[US Short-Term SIM Plan (eSIM)] Steps to Get Started

This guide explains how to get started with your US Short-Term SIM Plan (eSIM), from ordering to eSIM setup.
Please follow steps ① through ⑥ in order.

? Available Plan Durations

7 days / 10 days / 14 days / 20 days / 25 days / 30 days / 40 days / 50 days / 60 days

1

Select Your Plan Duration and Proceed to Cart

Visit the plan page, select your desired duration, then click [Add to Cart] → [Proceed to Checkout].

2

Log In to My Page or Create a New Account

If you already have an account, log in to My Page. If this is your first time, please register as a new member.

3

Complete Your Order

Follow the on-screen instructions to enter your payment details and complete your order.

4

Register Your eSIM Info (EID & IMEI)

When the [Usage Information] screen appears, click [Register eSIM Number] and enter the following, then tap [Save].

・EID number (32 digits)

・IMEI number (15 digits)

※ For instructions on finding these numbers, see How to find your EID & IMEI number.

5

Select Your Desired Start Date and Submit Activation Request

When the [Activation Request] screen appears, select your Desired Start Date and click [Submit Activation Request].

✅ Your service will be available from your selected start date (US Pacific Time).
Your phone number will also be confirmed on your start date.

6

Set Up Your eSIM Using the Email Received the Day Before

The day before your start date, you will receive an email with subject: "eSIM Activation Complete".
Follow the instructions in the email to add and set up your eSIM on your device.

? How to Check Your Phone Number After eSIM Setup

Android: "Settings" → "About device" → "Phone number"

iPhone (iOS): "Settings" → "Phone" → "My Number"

※ If your phone number is not displayed, try restarting your device.
※ For detailed eSIM setup instructions, see eSIM Setup Guide (Short-Term SIM Plan).

⚠️ eSIM activation can only be performed within the United States. Please complete this step after arriving in the US.

? About Your Plan Period

  • The plan period includes your start date.
  • Your plan will be automatically cancelled at the end of the period (no cancellation procedure required).
  • The service cannot be used outside the United States or for international calls.
  • If you wish to use Japan Call, please purchase the plan that includes Japan Call.
  • Other optional plans are not available with this plan.

[Example] 10-Day Plan

Start date: July 3
Available period: July 3 – July 12

⚠️ Important Notes

  • The activation email may be filtered into your spam folder. Please add customer@universalmobile.us to your trusted senders list.

If you have any questions, please feel free to contact us.
UNIVERSAL Mobile Customer Support
customer@universalmobile.us

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