T-Mobile Prepaid vs Postpaid Porting – Key Differences
Porting your number works differently depending on whether you're using T-Mobile Prepaid or Postpaid.
Postpaid Accounts
Use My T-Mobile to generate your Transfer PIN
Porting completes within 24 hours
Account remains open until porting finishes
Dial *PORT (*7678) for Transfer PIN
Prepaid Accounts
Log into T-Mobile Prepaid portal → Profile → Account settings
Your account number is your phone number
PIN is the 4-digit security code
Porting usually takes 1–2 business days
⚠️ Important Notes
- Both plans must remain active until the port finishes
- Prepaid lines can't be ported if inactive or suspended
- Verify your name and address exactly match records
Quick Reference
| Feature | Postpaid | Prepaid |
|---|---|---|
| Transfer PIN Method | Dial *PORT (*7678) | 4-digit security code |
| Account Number | Found in My T-Mobile app | Your phone number |
| Typical Timeline | Within 24 hours | 1–2 business days |
| Requirements | Active account | Active balance |
Frequently Asked Questions
Is there a cost?
No — T-Mobile doesn't charge to port numbers.
Can I move from prepaid to postpaid internally?
Yes — visit a store or chat with support to migrate.
What if my prepaid account is suspended?
You'll need to reactivate it with a payment before porting can proceed.
Ready to Port Your T-Mobile Number?
Access your account to get the information you need for porting.