[US SIM Plan (Physical SIM Card)] Steps to Get Started
This guide explains how to get started after ordering your US SIM Plan (Physical SIM Card).
Please follow steps ① through ⑤ in order.
Check SIM Unlock Status & Supported Frequency Bands
■ How to Check SIM Unlock Status
Please confirm that your smartphone is SIM-free or SIM-unlocked.
< iPhone >
"Settings" → "General" → "About" → scroll down → "SIM Lock"
→ If it shows "No SIM restrictions", your device is unlocked.
< Android >
"Settings" → "About device" → "SIM card status"
→ If it shows "Allowed", your device is unlocked.
※ Menu names may vary by device model or OS version.
※ If your device is still SIM-locked, please contact the original carrier or retailer to unlock it.
■ Supported Frequency Bands & VoLTE
Your device must support the following:
4G: VoLTE / Band 2, 4, 12, 66, 71
5G: n71, n41
※ iPhone 6s and later models are all compatible.
※ To check compatibility, enter your IMEI number at T-Mobile BYOP Check.
For more details, see: Can I use my current phone with this plan?
Order Your US SIM Plan
Visit our plan page, select the US SIM Plan, and complete your order following the on-screen instructions.
Receive Your SIM Card
? Shipping (US or Japan)
Your SIM card will be delivered to your specified address within 3–5 business days after your order.
? Pickup (In-Store)
Once your SIM card is ready, we will send you a "Pickup Notice" email.
Please come to the following address to pick it up.
UNIVERSAL Mobile
370 Crenshaw Blvd Ste E202G
Torrance, CA 90503
Submit an Activation Request via My Page
Log in to My Page and enter the following information to request activation.
- Enter your Desired Start Date and ZIP Code — both are required.
※ You may use the ZIP code of your hotel, workplace, or school. - Select any optional plans you wish to add.
- If transferring your phone number from another carrier, enter your current carrier's Account Number and PIN.
※ For number transfer (MNP) instructions, see this article.
✅ After submitting, you will receive an email with subject: "SIM Activation Request".
Please wait until your desired start date.
⚠️ Activation begins after our business hours start (9:00 AM PST).
Completion may be in the morning or afternoon — please allow extra time when choosing your start date.
If your start date falls on a weekend or holiday, the activation email will be sent on the preceding Friday or last business day.
On Your Start Date — Insert the SIM Card
On your desired start date (US time), insert the SIM card into your device and power it on or restart it.
✅ Your phone number will be provided in the email with subject: "SIM Activation Complete".
⚠️ Important Notes
- Plan charges begin from your activation start date.
- The activation email may be filtered into your spam folder. Please add customer@universalmobile.us to your trusted senders list.
- If you are transferring a phone number, your actual start date may differ slightly. Do not cancel your current plan until the transfer is complete.
- Only US mobile phone numbers can be transferred (Japanese numbers cannot be ported in).
If you have any questions, please feel free to contact us.
UNIVERSAL Mobile Customer Support
customer@universalmobile.us
[US SIM Plan (Physical SIM Card)] Steps to Get Started
This guide explains how to get started after ordering your US SIM Plan (Physical SIM Card).
Please follow steps ① through ⑤ in order.
Check SIM Unlock Status & Supported Frequency Bands
■ How to Check SIM Unlock Status
Please confirm that your smartphone is SIM-free or SIM-unlocked.
< iPhone >
"Settings" → "General" → "About" → scroll down → "SIM Lock"
→ If it shows "No SIM restrictions", your device is unlocked.
< Android >
"Settings" → "About device" → "SIM card status"
→ If it shows "Allowed", your device is unlocked.
※ Menu names may vary by device model or OS version.
※ If your device is still SIM-locked, please contact the original carrier or retailer to unlock it.
■ Supported Frequency Bands & VoLTE
Your device must support the following:
4G: VoLTE / Band 2, 4, 12, 66, 71
5G: n71, n41
※ iPhone 6s and later models are all compatible.
※ To check compatibility, enter your IMEI number at T-Mobile BYOP Check.
For more details, see: Can I use my current phone with this plan?
Order Your US SIM Plan
Visit our plan page, select the US SIM Plan, and complete your order following the on-screen instructions.
Receive Your SIM Card
? Shipping (US or Japan)
Your SIM card will be delivered to your specified address within 3–5 business days after your order.
? Pickup (In-Store)
Once your SIM card is ready, we will send you a "Pickup Notice" email.
Please come to the following address to pick it up.
UNIVERSAL Mobile
370 Crenshaw Blvd Ste E202G
Torrance, CA 90503
Submit an Activation Request via My Page
Log in to My Page and enter the following information to request activation.
- Enter your Desired Start Date and ZIP Code — both are required.
※ You may use the ZIP code of your hotel, workplace, or school. - Select any optional plans you wish to add.
- If transferring your phone number from another carrier, enter your current carrier's Account Number and PIN.
※ For number transfer (MNP) instructions, see this article.
✅ After submitting, you will receive an email with subject: "SIM Activation Request".
Please wait until your desired start date.
⚠️ Activation begins after our business hours start (9:00 AM PST).
Completion may be in the morning or afternoon — please allow extra time when choosing your start date.
If your start date falls on a weekend or holiday, the activation email will be sent on the preceding Friday or last business day.
On Your Start Date — Insert the SIM Card
On your desired start date (US time), insert the SIM card into your device and power it on or restart it.
✅ Your phone number will be provided in the email with subject: "SIM Activation Complete".
⚠️ Important Notes
- Plan charges begin from your activation start date.
- The activation email may be filtered into your spam folder. Please add customer@universalmobile.us to your trusted senders list.
- If you are transferring a phone number, your actual start date may differ slightly. Do not cancel your current plan until the transfer is complete.
- Only US mobile phone numbers can be transferred (Japanese numbers cannot be ported in).
If you have any questions, please feel free to contact us.
UNIVERSAL Mobile Customer Support
customer@universalmobile.us
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