Quick Answer: How Do I Activate My Pay As You Go SIM?


  • Insert your sim into your phone.
  • If you have a new top up card, call 248 and follow instructions to link.
  • If you haven’t, head to o2.co.uk/webtopup.
  • Top up online or go to a topup point. Topup £10 or more.
  • Call 4444. Check your balance and hangup.
  • Your sim is now activated.

How do I activate my new SIM card?

New phone or SIM card activation

  1. Go to att.com/getstartedbiz.
  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.

How do I activate my o2 pay as you go SIM?

You can activate your sim in five simple steps:

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

How do I know if my SIM card is active?

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 do pay as you go SIMs work?

A Sim is the little chip that slots into your phone and gives you a set monthly allowance of minutes, texts and data. A pay-as-you-go (PAYG) deal, as the name suggests, means you pay upfront and are not tied in to any contract or commitment.