No, you won't be able to activate a sim card without topping up.

Subsequently, one may also ask, do I have to top up to activate my giffgaff SIM?

Hello. It is a requirement that you need to top-up or buy a goodybag in order to activate your sim. Within 30 minutes and 24 hours, you will then receive a new number and you can start using Giffgaff services.

Subsequently, question is, how do I activate my o2 SIM card without topping up? You can activate your sim in five simple steps:

1. Pop out the right size sim for your device, put it in and switch it on.
2. Visit the Pay As You Go mobile broadband page.
3. Enter your mobile broadband number and click sign in.
4. Follow the instructions to register and activate your data.
5. You're ready to go.

Similarly, how do I activate my giffgaff SIM without credit?

Purchase a giffgaff (o2's fine) voucher from your local shop with a paypoint machine and use that to activate your sim online. Once you've activated your sim,activation should take about 30 minutes to fully complete but can take upto 24 hours. You'll then be allocated your number (don't post it here).

How do I activate my giffgaff SIM?

How to activate your SIM

1. Activate your giffgaff SIM. Go to or click on the following button:
2. Activation code. Enter the 6-character activation code printed on the SIM card.
3. User registration.
4. Monthly plan selection.
5. Credit top-up.
6. Payment details.
7. Confirmation.
8. Phone number.

Related Question Answers

How long does it take for my giffgaff SIM to activate?

30 minutes

Do you have to top up to activate SIM?

You have to top up in order to activate the sim. The sim is not allocated a phone number, until activation.

How do I activate my SIM card?

New phone or SIM card activation

1. Go to
2. Select Activate your device for AT&T wireless device.
3. Enter the required information.
4. Select Continue.
5. Follow the prompts to complete your activation.

What is my number giffgaff?

You can find your giffgaff number via the following methods: Visit your giffgaff dashboard - Your number will be displayed under your username. Text NUMBER to 2020 or 43430 - You will get a text reply within a few minutes with your number.

How does giffgaff pay as you go work?

GiffGaff is a pay as you go operator. Top up your credit by voucher or card and use your credit for calls and texts when and as you want. In addition, GiffGaff offers Goodybags.

Why is my giffgaff not working?

There could be issues with a mast or poor coverage affecting your data. Try turning your phone off and on again. Your phone could be locked or faulty. Try your SIM in another phone to see if it works.

Can I put my giffgaff SIM in another phone?

Yes you can provided the phone is unlocked or locked on the O2 network. If your sim is not the same size and does not fit, you will need to do sim swap. SIM Swap allows you to transfer your giffgaff number to a brand new SIM card including existing goodybags/gigabags and airtime credit.

How do you pay giffgaff?

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1. Login to your giffgaff account.
2. Go to the Top-up section of the website.
3. Click the "Select" button under goodybags or gigabags, as applicable.
4. Click "Select" on the Goodybag you want.
5. Your goodybag or gigabag appears in your basket.
6. Click "Airtime Balance" and then "Exchange Airtime Credit".

How do I cancel giffgaff?

As GiffGaff is PAYG Network you can cancel or stop using it at anytime you wish to. dial 43431 from your handset. After 6 months non-activity - the SIM will be deactivated and the number recycled if not ported out Any unused credit would be lost.

Can you activate giffgaff SIM abroad?

You can always activate your SIM using a topup of the airtime credit and not buy a goodybag. Giffgaff SIMs are enabled for international roaming by default. Giffgaff, via O2, covers a lot of countries so you shouldn't have a problem taking your phone abroad.

Why is my new SIM not working?

Your SIM card or device may be configured for your previous network and will need to be reconfigured. Clean the gold connectors on the SIM with a clean lint-free cloth. Replace the battery and turn your phone on without the SIM. Turn your phone off, replace the SIM and restart the phone.

How do I get a new SIM with the same number?

To get a new SIM card with same number, visit to your nearest Airtel care gallery with police FIR and the supporting documents (Government ID proof, Address proof, 2 passport size photo). Your number will be activated within 2 hours.

How do I know if my SIM card is activated?

The easiest way to check if a SIM card is active is simply insert it into a working phone and power it up, and then try to dial out to a friend or a publicly listed phone number.

How long does it take for 02 SIM to activate?

24 hours

How do you activate an o2 SIM card?

You can activate your sim in five simple steps:

1. Pop out the right size sim for your device, put it in and switch it on.
2. Visit the Pay As You Go mobile broadband page.
3. Enter your mobile broadband number and click sign in.
4. Follow the instructions to register and activate your data.
5. You're ready to go.

Where is the mobile broadband number?

Your mobile broadband number will be in the pack that came with your sim. Or if you have an Android tablet, you can text NUMBER to 2020. If this is your first top up, you'll see the options you can choose from.

Can I get a second SIM card with the same number?

You can use a SIM-card duplicator to make a copy of a V-1 SIM card and have two phones that have the same SIM card and phone number. So as long as your current SIM card was purchased before 2001, you can have a dual SIM card for the same number.

What happens when you get a new SIM card?

When you remove your SIM card from your phone and replace it with another card, you lose access to any information on the original card. This information is still stored on the old card, so any phone numbers, addresses or text messages that you lose are available if you insert the old card into the device.

How do I know if my giffgaff SIM is activated?

Place the sim in your 02 or unlocked phone and then text the word 'Number' to 2020. You will then receive a reply with the Giffgaff number which is linked to the sim. If you get a reply with a number, this means that the sim is activated. Also, Dial *100# and *100*7# free from your phone to check the sim's balance.

What is my phone number?

Option 1

• From the Home screen, open “Settings“.
• Scroll down and select “About phone” or “About device“. Some versions of Android display the phone number on this screen. If not, proceed to step 3.
• Select “Status” or “Phone identity“.