How to Switch from h2o Wireless to Ultra Mobile: A Comprehensive Guide
By Ultra Team
Updated November 3, 2025
Looking to make the leap from h2o Wireless to a new carrier and need some help? That’s what we’re here for. This guide will walk you through how to switch from h2o Wireless to Ultra Mobile, if that’s where you decide to go next. First we’ll cover why we think Ultra Mobile makes the most sense as your next wireless carrier, then we’ll explain how to make the switch, including steps on bringing your phone and number along with you. Let’s get started.
Why Switch to Ultra Mobile?
So you’re ready to leave h2o Wireless, but you need to know where to go next. Here’s a quick rundown of why we think Ultra Mobile is your best choice when it comes to wireless.
Multi-Month Plans
We know you value flexibility, which is why we offer 1, 3, 6 & 12-month plans. And just like bulk purchases elsewhere, the more you buy up front, the more you save.
Free International Features
Ultra Mobile Customers get Unlimited Talk to 90+ International Destinations, Unlimited Global Text and Unlimited Talk & Text in Mexico & Canada.1
Reliability on the T-Mobile 5G Network
Stay connected to those who matter most with coverage you can trust on America’s largest 5G network. T-Mobile’s network provides 4G LTE coverage to 99% of Americans and 5G coverage to 98% currently… and it keeps growing.2
Cost
Every Ultra Mobile Plan costs less than and offers higher data than any comparable h2o Wireless plan…and we also offer more data amounts to choose from.3
Free Wi-Fi Calling & Mobile Hotspot
These additional features that will help you make the most of your wireless experience are included at no extra cost.4
Amazing Customer Support
Our Customer Care team currently has an average Customer Satisfaction score of 97%.5
How do I switch from h2o Wireless to Ultra Mobile?
Now that you’ve decided to join the Ultra family, it’s time to officially make the switch. Let’s go over what to do before, during and after you’ve made the switch.
1. Prepare for the Switch
Make absolute sure Ultra Mobile is going to work for you by checking your phone’s compatibility with our network and the coverage in your area. Make sure you look at home as well as where you work and any other areas where you spend most of your time. For more tips on switching, you can also visit our How to Switch page.
2. Bringing Your Own Phone?
If you are bringing your own phone, in addition to being compatible with our network, it must also be unlocked. For more information on bringing your own phone to Ultra, visit our BYOP page.
3. Bring Your Own Number (or Get a New One)
If you would like to bring your h2o wireless number over to Ultra, there are a few things you need to do before you activate your Ultra Mobile account.
Don’t cancel your h2o Wireless service yet
If you cancel your h2o Wireless account before transferring your number to Ultra, the number will be lost.
Gather essential account details
To bring your number to Ultra, you’ll need your h2o Wireless Account Number, Account PIN or Number Transfer PIN and billing ZIP Code.
Have h2o Wireless release your number
Contact h2o Wireless’ customer support (1-800-643-4926) and ask them to release your number and provide your “port out” account number.
“NOTE”
Some users report the account number is not the same as their phone number (it may be an 8-digit code).
Get your h2o Wireless account PIN Number
While on the phone with their customer support, h2o may require you to provide 3 most recent outgoing calls (or another form of validation) before giving you your PIN.
“NOTE”
h2o customers often report that the PIN is the last 4 digits of their SIM card.
If you want a new Ultra Mobile phone number, all you need to do is provide us with your home ZIP code during the activation process and we’ll give you one based on your location.
For more information on bringing your number to Ultra, check out our number transfer blog.
4. Choose the best plan for you
We offer data plans ranging from 500MB up to Unlimited (with all plans including Unlimited Talk & Text). If you’re not sure which plan is right for you, you can read more about how our plans work here and even take a short quiz that will match you to the ideal plan.
5. Choose your SIM Preference
Ultra Mobile supports SIM cards and eSIM. You can have a physical SIM card mailed to you within about 3-5 business days. If your phone is eSIM-compatible, you can opt to activate with an eSIM in minutes. Not sure? You can check if your phone supports eSIM with just a few clicks.
6. Time to Activate!
From a computer, head to my.ultramobile.com/activate to begin the activation process. If you need help, check out our step-by-step activation guide, or visit our How to Activate page.
Ready to Switch?
Now that you know all the steps necessary to switch from h2o Wireless to Ultra Mobile, it’s time to join the Ultra family! Enjoy all the features you love at a cost you’ll love, plus reliability on the T-Mobile 5G network, amazing customer support and more. Or tap the button below for even more reasons to love Ultra.
1Unlimited Talk & Text in Mexico & Canada: Select plans only; no international data roaming included; not for extended international use. INTL 90+: See www.ultramobile.com/international-calling/ for destinations; list subject to change.
25G access req’s capable device & SIM w/in appropriate coverage area. Actual availability, speed & coverage may vary
3Comparison as of October 2025. Comparison based on all 1-month phone plans on the h2o wireless website without Auto-pay discount or current promotions vs. Ultra Mobile’s plans without Auto-pay discount or current promotions.
4Capable device required. Actual availability, speed & coverage may vary. Heavy data users (>35GB/mo.) may notice slower speeds when our network is busy. Includes up to 10GB hotspot on Unlimited (20GB on Unlimited+). Videos stream at ~480p.
5As of October 2025
