Of course you can. In fact you should. That way your friends, family and colleagues can continue to connect with you easily.
When you sign up to OVO you'll be asked to either choose a new phone number or bring your existing number - that's called a port.
When you choose to bring your number, we'll contact your current network provider and let them know that your number is coming online on the OVO mobile network. This process is triggered when you activate your OVO SIM card on our website - don't worry you won't be without service while you're waiting for your SIM to arrive.
When you switch from another telco and bring your phone number across to OVO activating your SIM card can take a little longer. In fact, if you're switching from Optus or a reseller of Optus (like Amaysim) it usually takes 1 working day for them to release your phone number to OVO. If you're switching from any other telco (e.g. Telstra), your SIM should become active within 15 minutes to 4 hours.
While that's happening, you won't be offline. You can continue to use your existing SIM card until it's disconnected from your existing telco.
To ensure this goes smoothly, it's really important that you give OVO the exact same Date of Birth and / or Account number that is held by your current telco. If there is any discrepancy it will slow down the whole process. You're right if you're thinking 'that seems crazy' but it's surprisingly common how many customers we've spoken to that have had a phone number recorded in a partner’s name and details, or given an incorrect date of birth to their old telco....so please make sure your account number and date of birth match!
One last thing, there's no need to disconnect your service with your current telco - once you're connected to OVO your previous telco will automatically arrange to finalise your account with you.