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SIM card 101

Koodo SIM cards fit standard, micro, and nano readers.

A SIM is a tiny card with a big job! It stores your data and phone number and carries a unique identification number that links you to a specific mobile phone company. (Your text messages are not stored on your SIM and will not be transferred from your old phone.)

Without a SIM card inside your phone, or if the SIM is not working correctly, your phone will not be able to make calls, send texts, or connect to your mobile network.

Note: To protect your privacy, this is an online-only transaction that must be done using Self Serve.

New activations

New to Koodo?

The SIM card we’ve included with your online order has all 3 card sizes (Standard, Micro, and Nano) in 1 convenient package. Simply push out the SIM card size that fits your phone, insert it into your phone, and start using your Koodo services.

If you ever plan on transferring your number from another provider to Koodo, you can check out our help page to find out how.

Not getting any network service?

If you can’t send or receive calls or text messages, check out our tips.

Getting a SIM card error message?

First double-check that your SIM card is correctly inserted; if it is but is still not working, you might need to visit your nearest Koodo store or reach out at Koodo.com/chat for help.

Activating your Prepaid SIM card?

If you have a Prepaid SIM you wish to activate, you’ll need to go to our Prepaid site to see how. Activate here.

SIM card replacement 101 & Upgrades

Need a replacement SIM card?

If you lost or damaged your old SIM card or need a SIM card of a different size, you can grab one at your nearest Koodo store! Once you’ve got your new SIM card, you’ll need to officially change your SIM card in Self Serve - just follow the numbered instructions in the ‘Updating your SIM card in Self Serve’ section below!

Got a new Koodo SIM card with your upgrade? Not sure if you need to replace your old one?

All phones upgraded online come with a SIM card to be used as a spare in case you lose the one you’ve got or it becomes damaged - if this does ever happen, you’ll need to register and change the SIM card in Self Serve before you can use it.

Your old SIM fits in your new phone?

Great! All you have to do is pop your old SIM card into your new phone - your phone number and your plan will both be active on your new phone. (Your text messages are stored on your phone, not on your SIM card, and will not be automatically transferred from your old phone to your new phone. If you’d like to keep them, make sure you’ve backed them up somewhere.)

Your old SIM card doesn’t fit into your new phone’s SIM card slot?

No problem! You’ll need to replace your old SIM with one of the three SIM card sizes we’ve included with your order.

Once you’ve determined which size will fit your new phone, simply push out the large white card (Standard), the medium multi-colored card (Micro), or the small white card (Nano) and log into your Self Serve account to update your old SIM card with the new one we sent you. Before you start this, don’t remove the SIM card that’s already in your old phone, and make sure the phone is on, because we’ll be sending a verification code to your old phone with the old SIM card.

Updating your SIM card in Self Serve

Note: To protect your privacy, this transaction can’t be done over the phone with the help of a rep and must be completed online through Self Serve.

  1. Log in to your Self Serve account.
  2. On the Overview page, click Self Serve and select Mobile services from the drop-down menu.
  3. Select Change your SIM card.
  4. Enter your new SIM number in the text box and click Continue.
  5. A 5-digit verification code will be sent to your current phone. In case your SIM is lost/damaged, the verification code will be sent to another line or to an email address on your account.
  6. Once you’ve entered the verification code, you can now insert your new SIM card into your phone. Turn the phone off and back on again. Heads up! It may take up to 15 minutes for your SIM to be activated.

Not getting any network service?

If you can’t send or receive calls or text messages, check out our tips.

Getting a SIM card error message?

First double-check that your SIM card is correctly inserted; if it is but is still not working, you might need to visit your nearest Koodo store or reach out at Koodo.com/chat for help.



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