How to Activate a Cricket Wireless SIM Card

Published on November 2, 20267 minute read

What you need to do to activate Cricket Wireless

Cricket Wireless SIM card activation happens in one of three ways: online through Cricket's website, by phone with their customer service team, or in a Cricket store. You'll need your SIM card, a phone that works with Cricket's network, and either a new phone number or an existing one you want to transfer. The process itself takes minutes, though it can take a few hours for the network to recognize your phone after activation is complete.

Cricket runs on AT&T's network infrastructure, so any phone that works on AT&T will work on Cricket. This includes most phones sold in the United States, whether they came from a carrier, a retailer like Best Buy, or directly from a manufacturer. The main exception is phones locked to other carriers — those need to be unlocked first, which your previous carrier can do if you ask.

Key Takeaways

You can activate a Cricket SIM card online at cricketwireless.com, by calling Cricket customer service, or by visiting a Cricket store in person.
Activation requires your SIM card number (printed on the card itself), a compatible phone, and either a new number or proof you own the number you want to transfer.
After you complete activation, allow a few hours for the network to recognize your phone before making calls or using data.
If your phone is locked to another carrier, that carrier must unlock it before Cricket's SIM card will work in it.

Activating online through Cricket's website

Go to cricketwireless.com and look for the "Activate" or "Activate a Device" link, usually found near the top of the page. You'll be asked whether you want a new phone number or if you're bringing an existing number from another carrier. If you're bringing a number, have your previous carrier's account information ready — Cricket will need your account number and PIN to transfer it.

Next, enter your SIM card number. This is the 20-digit number printed on the back of your SIM card, usually labeled "SIM" or "ICCID." You'll also enter your phone's IMEI number, which identifies your specific device to the network. To find your IMEI, dial *#06# on your phone and a number will appear on the screen — write it down or take a screenshot before you start the activation process.

Once you've entered this information, Cricket will confirm your details and complete the activation. You should receive a confirmation email within minutes. Turn your phone off, insert the SIM card, turn it back on, and wait a few hours for the network to fully recognize your device. You may see a message asking you to update your phone's network settings — if so, follow the on-screen prompts.

Activating by phone with Cricket customer service

Call Cricket's customer service line at 1-800-CRICKET (1-800-274-2538). A representative will walk you through the same information you'd enter online: whether you want a new number or to transfer an existing one, your SIM card number, and your phone's IMEI. If you're transferring a number, have your previous carrier's account details available.

The phone route is useful if you're unsure about finding your IMEI or SIM card number, since the representative can guide you through locating both. It's also the faster option if you have questions during the process or if something doesn't work as expected. After the call ends, follow the same steps: insert the SIM card, power on your phone, and wait a few hours for activation to complete.

Activating in a Cricket store

If you have a Cricket store near you, staff can activate your SIM card while you wait. Bring your phone, your SIM card, and a photo ID. If you're transferring a number from another carrier, bring your previous account number and PIN as well. Store activation is the fastest way to get your phone working, since staff can test the connection before you leave and troubleshoot any immediate problems.

To find a Cricket store, visit cricketwireless.com/stores or call 1-800-CRICKET. Many Cricket stores are located inside larger retailers like Walmart or Best Buy, so check whether there's one in your area before making a trip.

What happens if your phone is locked to another carrier

If you bought your phone from a carrier like Verizon, T-Mobile, or AT&T on a contract or payment plan, it may be locked — meaning it will only work on that carrier's network. Cricket's SIM card won't activate in a locked phone, even if the phone is otherwise compatible.

To unlock your phone, contact the carrier that sold it to you. Most carriers will unlock a phone if you've paid off any remaining balance and the account is in good standing. The process usually takes a few minutes to a few hours. Once your phone is unlocked, you can insert Cricket's SIM card and activate it normally. If you're unsure whether your phone is locked, try inserting the Cricket SIM card and powering on — if it's locked, you'll see a message saying the SIM card isn't recognized.

Troubleshooting activation problems

If your phone doesn't connect to the network a few hours after activation, restart it by powering off and back on. If you still don't see Cricket's network, check that you've inserted the SIM card correctly — the gold contacts should face down, and the card should sit flat in the slot. Some phones have a SIM tray that slides out; others have a slot you insert the card into directly. Consult your phone's manual if you're unsure.

If your phone shows "No Service" or asks for a PIN, your phone may still be locked or the SIM card may not be fully activated yet. Wait another hour and restart again. If the problem persists, call Cricket customer service at 1-800-CRICKET. They can check whether your activation went through and resend network settings to your phone if needed. Have your phone number and SIM card number ready when you call.

Transferring an existing number to Cricket

If you're moving your phone number from another carrier to Cricket, the process is called a "port." During activation, you'll choose the option to transfer your existing number rather than get a new one. Cricket will ask for your previous carrier's account number and account PIN — this is the security code you use to access your account, not your phone's SIM PIN.

The port usually completes within a few hours, though it can take up to one business day. During this time, your old carrier will stop providing service on that number, and Cricket will take over. You may experience a brief gap where calls and texts don't go through — this is normal. Once the port is complete, all calls and texts will route to your Cricket phone.

If you don't know your previous carrier's PIN, call them before you start Cricket activation. They can tell you the PIN or reset it for you. Without it, Cricket cannot complete the port, and you'll need to get a new number instead.

Frequently Asked Questions

How long does Cricket activation take?

The activation itself takes minutes, whether you do it online, by phone, or in a store. However, it can take a few hours for the network to recognize your phone after activation is complete. If you're transferring a number from another carrier, add up to one business day for that port to finish.

Do I need to buy a plan before I activate my SIM card?

No. You can activate the SIM card first, then choose a plan afterward. However, your phone won't have service until you've selected and paid for a plan. Cricket offers plans starting at different price points depending on data and talk/text allowances.

What if I activate my SIM card but then decide to use a different phone?

You can move your SIM card to a different phone at any time. Power off both phones, remove the SIM card from the first phone, insert it into the second phone, and power on. The network will recognize the SIM card and your service will continue. If the new phone is locked to another carrier, you'll need to unlock it first.

Can I activate a Cricket SIM card if I don't have a phone yet?

You can start the activation process, but you'll need a compatible phone before your service will actually work. Some people activate their SIM card and then buy a phone separately, inserting the SIM card once the phone arrives. Just make sure the phone you buy is compatible with Cricket's network.

What should I do if my activation fails?

Call Cricket customer service at 1-800-CRICKET. They can check your account, see where the activation stopped, and either complete it or walk you through the steps again. Common reasons for failed activation include a locked phone, an incorrect IMEI number, or a SIM card that wasn't recognized by the system.