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Southern Phone NBN sale: Save up to $240 over 12 months


Southern Phone is offering a year of discounts on its NBN plans plus a modem for half the price if you need it.

Southern Phone's slinging $10 to $20 off per month on selected unlimited data NBN plans for the first year if you're looking to switch and save on your internet.

Here's a breakdown of what's on offer.

NBN plansTypical evening speedOriginal monthly priceDiscounted monthly priceAnnual savingLearn More
NBN 2525Mbps$65$55$120
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NBN 100100Mbps$85$65$240
Sign up here
NBN 250250Mbps$115$95$240
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NBN 1000650Mbps$135$115$240
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These offers are only available until 1 November 2023 for new or existing Southern Phone customers taking up a new eligible NBN plan.

  • Keep in mind: NBN 250 and NBN 1000 plans are only available to those with FTTP and HFC connection types.

You have the option to BYO modem but if you need a new one, Southern Phone can sort you out with its 50% discount.

That means you'll pay $78 instead of the usual $156, making one of the cheapest modem prices in Finder's database.

Are Southern Phone's NBN deals worth it?

Southern Phone's NBN plans are carbon neutral plus and you also get the added benefit of local customer support.

Let's take a look at how it stacks up on speed and price.


Southern Phone's typical evening download speeds during busy hours (7-11pm) reach the maximum available on its NBN 25, 100 and 250 plans.

For its NBN 1000 plan, its typical evening speed is 650Mbps.

Although it's not the maximum speed attainable, it's still one of the fastest speeds advertised from all providers for this tier.


Southern Phone's discounted NBN plan prices are also generally cheaper across the average on Finder for all of the speed tiers. Its NBN 100 plan is the cheapest in our database when you compare yearly costs.

For other speed tiers, there are a few providers that could save you more.

NBN PlanProviderTypical Evening SpeedAnnual CostAnnual saving vs Southern PhoneLearn More
NBN 25Tangerine25Mbps$628.80$31.20
Read review
NBN 250Flip236Mbps$1,073.40$66.60Read review
NBN 1000Kogan250Mbps$1,318.80$61.20
Sign up here

Keep in mind though, if you need to purchase a modem from these providers, it may work out to be more expensive overall.

Image: @Billion Photos via

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2 Responses

    Default Gravatar
    SueSeptember 18, 2023

    My phone bill states internet usage 289.551MB
    does this mean 25mbps ? X per month Can you explain please . ??

      MarkSeptember 18, 2023Finder

      Hi Sue,
      Mbps refers to megabits per second, which is generally used to measure the speed of an internet connection. So an internet connection’s speed might be 25Mbps, or 25 megabits per second.
      If your phone has used 289.551MB for the internet, that just refers to the number of megabytes (MB) of data that you have used while on the internet – from browsing websites, to using social media or whatever activities you do.
      So although similar, Mbps and MB are separate terms that refer to different things – Mbps for speed and MB for size.
      Hope this helps.

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