Personal     Business     About iRoam
Need help? 1.866.454.7626

Activate your iRoam international SIM card

Enter your SIM serial number. Help

Choose SIM pack

Do you have a promo code?

Promo code
(if applicable)

Locating the SIM Card Serial Number

The serial number, which comprises of 15 digits, is located at the back of your SIM card.

SIM card serial number Close

What's next after you activate your SIM card:

Verify what SIM card size your phone requires first (standard, micro or nano). Detach the SIM card from its plastic holder and insert it into the SIM card slot of your unlocked GSM mobile device with the gold connectors facing down. This is usually located behind the battery, or on the side for iOS devices.

See how to initially set up your SIM card

iRoam is a prepaid, convenient Global Talk + Text + Data cellular phone service with exceptional coverage and rates in the USA, Europe and globally while saving you up to 90% in roaming costs when compared with your cellular provider.

Powered by the world's best networks to give you exceptional coverage and connection.

iRoam SIM Card Reviews

"With G3 Wireless, you can enjoy substantial savings of up to 90% on your mobile phone usage. There are no roaming fees and you effectively pay a rate that's almost like the locals."


"G3 Wireless sets itself apart by having incredible customer service. Call or email one of G3's customer service representatives 7 days per week, whether you have trouble activating your SIM, experience a sudden issue or just need questions answered."


"Getting set up with the SIM card was quick and easy. I put the card in my phone, headed over to the G3 website and activated it by entering in the serial number on my SIM."

Mega Tech News
Leave Your Daily Hell
Never Ending Footsteps

Read more SIM card reviews and testimonials

Special Black Friday Deal!
Top Up Your iRoam SIM Balance Now and
Receive an Extra 15% FREE Airtime*