Here is how to get your H2O Wireless account number and transfer PIN, and what to do with them when you move your number to another carrier.
Account Number
H2O Wireless does not publish a port-out account number page. A third-party porting guide says H2O uses an 8-digit account number and that you get it by calling 800-562-3229. General customer care is 1-800-643-4926.
Transfer PIN
H2O Wireless does not publish port-out PIN steps. A third-party porting guide says the Transfer PIN is 4 digits, and by default it is the last 4 digits of your SIM card number. Call 800-562-3229 to confirm it. Expiry is not stated.
*#06# for your IMEI and check it first.H2O Wireless Contact Info
Customer Service: 1-800-643-4926
Hours: Monday – Friday: 9:00AM – 5:00PM (EST)
- Porting Department: 1-800-562-3229
What network does H2O Wireless use?
H2O Wireless runs on the AT&T network.
H2O Wireless Porting Instructions
You will need to call H20 Wireless customer service and ask them to release your number before porting. All you need to provide is the 3 most recent outgoing calls to verify that it’s your number, after which they can tell you your account number and account PIN.
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Check coverage before you port
H2O Wireless runs on the AT&T network, so the coverage you get at your address is AT&T coverage. Check it on AT&T’s own coverage map before you start the transfer.
Your right to keep the number is federal, not a carrier policy. The rule is the FCC’s: Portability: Keeping Your Phone Number When Changing Service Providers.
Working a counter? The H2O Wireless transfer PIN lookup puts these steps on one screen and texts them to the customer.
Where H2O Wireless customers usually go next
H2O Wireless runs on AT&T’s network, so the phone in your hand is already AT&T-compatible. These carriers will take it with no compatibility question.
Cricket WirelessAT&T network, prepaid
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Questions about H2O Wireless
Can I keep my phone number when I leave H2O Wireless?
Yes. Federal number portability rules let you take a working number to a new carrier. H2O Wireless cannot refuse the transfer or charge you to release the number.
Should I cancel H2O Wireless before I port my number out?
No. Cancel first and the number is released, which ends your right to move it. Keep the H2O Wireless line active until the new carrier confirms the port completed.
How long does a port out from H2O Wireless take?
A simple wireless transfer usually completes within one business day once the new carrier submits the correct H2O Wireless account number and transfer PIN.
Does H2O Wireless run on its own towers?
No. H2O Wireless is a reseller riding on the AT&T network.
Cite this page
Sources
BestCellular.com is an independent reference, not a carrier. H2O Wireless does not publish these steps on a page we could read, so the steps above come from the secondary sources below. Confirm them with H2O Wireless before you start. Checked October 13, 2026.
- H2O Wireless: Contact H2O Wireless Customer Service
- H2O Wireless: Nationwide Coverage
- H2O Wireless: Frequently Asked Questions
- US Mobile: Carrier porting information
Carriers change port-out steps without notice. Confirm with H2O Wireless before you start a transfer, and tell us if anything here has changed.
Best Cellular. “H2O Wireless Account Number & PIN: Accurate 2026,” BestCellular.com. https://bestcellular.com/h2o-wireless/
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Check H2O Wireless before you switch
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H2O Wireless APN settings
H2O Wireless runs on the AT&T network. These are the APN settings H2O Wireless publishes for Android.
| APN | att.mvno |
| MMSC | http://mmsc.cingular.com |
| MMS proxy | proxy.mvno.H2OMobileweb.com |
| MMS port | 80 |
H2O publishes a legacy WAP and MMS format only, with no Android field table.
Source: www.h2owirelessnow.com · Checked 2026-09-22.
Open the full APN settings tool for H2O Wireless
Other carriers on the AT&T network
These brands use the same towers as H2O Wireless. Coverage is the same. Price, data priority when the network is busy, and customer service are not.
See which network every US carrier uses · Open the transfer PIN lookup