Southern Phone Mobile Plans & Prices — Compare & Save
Southern Phone offers mobile services with 3 plans tracked by Bill Hero as an MVNO on the Optus network. Bill Hero is an independent comparison service.
Plans tracked
3
3 mobile
Mobile network
Optus
MVNO — uses host network
Cheapest from
$24
/mo
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About Southern Phone
Southern Phone is an Australian telecommunications provider.
Mobile networkOptus (MVNO — uses host infrastructure)
Products offeredMobile Provider
Mobile plan typesPostpaid
Data range20 GB – 80 GB
Market positionSmaller / specialist provider
Southern Phone has 3 plans in Bill Hero's comparison.
Bill Hero is an independent comparison service: we don't take placement fees from Southern Phone or any other provider.
Southern Phone Mobile Plans — All 3 options
Southern Phone offers 3 mobile plans on the Optus network, starting from $24/mo.

3 plans available
| Plan | Data | Calls | Type | Features | $/mo | |
|---|---|---|---|---|---|---|
| 20GB 5G SIM Plan | 20GB | Unlimited standard national talk & text. Fair use policy applies. | postpaid0 | 5G | $24.00 | Compare 20GB |
| 40GB 5G SIM Plan | 40GB | Unlimited standard national talk & text. Fair use policy applies. | postpaid0 | 5G | $29.00 | Compare 40GB |
| 80GB 5G SIM Plan | 80GB | Unlimited standard national talk & text. Fair use policy applies. | postpaid0 | 5G | $34.00 | Compare 80GB |
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Frequently Asked Questions
How many mobile plans does Southern Phone offer?▾
Southern Phone offers 3 mobile plans across Postpaid. Southern Phone operates as an MVNO on the Optus network. Plans start from $24/month.
What mobile network does Southern Phone use?▾
Southern Phone is a Mobile Virtual Network Operator (MVNO) using the Optus mobile network. This means Southern Phone doesn't own network infrastructure — it buys wholesale access from Optus and resells it to customers, often at lower prices.
What data allowances does Southern Phone offer?▾
Southern Phone mobile plans range from 20 GB to 80 GB of data per month. The cheapest plan with at least 10 GB starts at $24/month.
What is eSIM and does Southern Phone support it?▾
eSIM (embedded SIM) is a digital SIM card built into your phone — no physical SIM card needed. You activate it by scanning a QR code or downloading a carrier profile. Benefits include: instant activation, easy switching between carriers, and the ability to have multiple numbers on one device (useful for travel or work/personal separation). Check the "Features" column in the plan table above to see which Southern Phone plans support eSIM.
What is VoLTE?▾
VoLTE (Voice over LTE) is a technology that carries voice calls over the 4G/5G data network instead of legacy 2G/3G networks. Benefits include: clearer call quality (HD voice), faster call connection, and the ability to use mobile data while on a call. Most modern phones support VoLTE automatically when connected to a compatible network. Plans with VoLTE support are marked in the "Features" column above.
Is Southern Phone a good provider?▾
Bill Hero is an independent comparison service and doesn't rate or recommend specific providers. Southern Phone's plans are compared alongside all other providers in our database — check the plan prices and customer reviews on this page to make your own assessment.
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