2G Network Closure Update

by Online Community Manager
Posted by (Online Community Manager)
23rd Nov 2016, 12:35pm



We are making changes to our mobile network and will be closing down older technology from April 2017. The 2G mobile network closure will take place over the following dates:


  • WA & NT – 3 April 2017
  • SA, QLD, VIC, NSW, TAS & ACT - 1 August 2017


After the shutdown dates, you will not be able to use 2G devices on the Optus mobile network. You will not be able to make or receive call or texts, or access the internet. Your service number and account details will remain with Optus unless you choose to cancel the service.


3G Single Band devices also use the 2G network in certain areas of the network, so if you have a 3G Single Band device and are outside the coverage of our 3G 2100 MHz network, you will also lose mobile service in these areas when the 2G mobile network closes. For more information on 3G Single Band devices, please see our FAQ below.


What is 2g network.png


Our 2G network was our first ever mobile network, and lets our customers make calls and send texts, with some basic internet connectivity too. But 2G is now an older network technology.


We first launched 2G in 1993 and since then we’ve evolved our network to include newer and faster technologies such as 3G and 4G all of which let you browse the web, download files, stream video and lots more.


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After the 2G mobile network closure, your 2G device will no longer work on the Optus mobile network and you will not be able to make or receive call or texts, or access the internet. 3G Single Band devices will also no longer work in 2G areas and the closure of the 2G mobile network may impact your ability to make or receive calls or texts, or access the internet.


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3G Single Band is the 3G 2100MHz technology that connects your device to the Optus mobile network. Today, when 3G Single Band devices are used outside of Optus 3G 2100MHz network coverage areas, their service switches to 2G.


After the 2G mobile network closure, 3G Single Band devices will lose coverage when moving into areas once covered by 2G. If you’re currently using a 3G Single Band device, you may need to switch to a 3G dual band (3G2100/3G900MHz) or 4G device – to improve your connection to the Optus mobile network. We recommend checking your device and coverage at


What do I need to do.png


If you currently have a 2G device, you’ll need to switch to a 3G Dual Band (2100MHz/900MHz) or 4G device, we recommend checking your device and coverage at


How Can I tell 2g.png


If you have a 2G device, you’ll only ever notice one of these symbols: 2G, Edge, E or GPRS in the top right hand corner of your phone’s screen (next to the signal strength bars) when it’s switched on.


2G phones are usually older phones that are typically best for talking and texting only. Also, older models only feature basic text screens – and that means you may not even see a 2G icon on your phone.


If you see any of these icons: 3G, H+, 4G or LTE on your phone’s screen, then it means your phone is compatible with our newer network technologies. 3G single band phones will show “3G” when in our 3G 2100 MHz coverage areas, but fall back to 2G outside of these coverage areas.  The latter coverage areas will be lost once 2G is closed down.


How Can I tell 3g.png


The manufacturer’s manual that came with your device may provide this information.


 3G single band (2100MHz)  devices use 2G when outside the coverage of our 3G 2100 MHz mobile network. This is often when the 3G single band device is used away from cities and major towns, when on regional roads and highways, or in difficult coverage areas such as basements or underground car parks.  If you notice that your phone shows “3G” when you are outdoors in cities and towns, but almost always shows that it is using 2G, EDGE or GPRS in most other situations, then it is likely that you have a 3G single band phone - but make sure you check on our coverage maps or the manufacturer’s manual.


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Please be aware than when changing SIM cards, information saved on your old SIM card, including contact numbers may be lost. To avoid this happening, we recommend that you back up any information on your old SIM before replacing or activating a new SIM.


Before you start, first check to see if the SIM card in your current handset fits in to your new phone. If it does, please save your list of contacts to the current SIM card before removing it and inserting it into your new phone.


If the SIM doesn’t fit, please follow the steps to transfer your contacts from your old SIM to the new SIM and your new phone.



Make sure you save your contacts to your existing handset.  You may also want to make a handwritten copy of your (key) contacts as a back-up.


Take your new SIM, and put it in your old phone.


Copy your contacts from your handset to your new SIM.


Take your new SIM out of your 2G handset, resize the new SIM to fit into your new handset (if needed), and then insert your new SIM into your new handset.


Please note the steps advised may not apply to all devices.


If your particular phone is not listed on the page, please refer to your device manufacturer’s support site for assistance.


If your current SIM card does not fit in or is not compatible with your new phone, please make a note of all the contact details you need because you will need to add them into your new device manually.


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Any 2G or 3G single-band devices which use a wireless network, including wireless telephony and Optus Wireless Fusion will be impacted.


After the 2G network closure date, any services using a 2G device will be cancelled, meaning you will lose your phone number if you take no action.  You will not be able to make or receive calls or access the internet.  If you wish to stay connected to the Optus network, you will not be able to keep your current phone number and you will need to check at your local Yes Optus store to find out if you are in a serviceable area for another Optus product.  


Alternatively, if you would like to keep your phone number, you will need to move your number to another service provider. This process can take some time, so we recommend that you contact the new service provider as soon as possible and take action at least 3 – 4 weeks before the 2G mobile network closure.


If any of the impacted services on your account are 3G single-band devices, those services will not lose their phone number, however, you may encounter connectivity issues with our network.  This may impact your ability to make or receive calls or access the internet.


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The only Optus supplied 2G Wireless Telephony or Wireless Fusion device is the SAGEM RL302 Wireless Voice Box. If you are using this device, you will be impacted by the network closure in your state.


If you are using the Optus supplied HUAWEI E960 InZone device, this is a 3G single band device.


All other Optus supplied Optus Wireless Telephony and Optus Wireless Fusion Devices are not impacted by the 2G mobile network closure.


If you are using Optus Wireless Telephony or Fusion with non-Optus supplied Wireless Telephony or Fusion equipment, the manufacturer’s manual that came with your device may provide this information.


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 If you have a 2G Optus Wireless Fusion or Mobile Broadband service with Optus, it’s important to note that once your Optus Wireless Fusion or Mobile Broadband service is cancelled if no action is taken before the 2G mobile network closure dates, you will lose your Optusnet email account, and you will not be able to access saved emails if you have not linked it with another Optus Broadband account.




Machine to Machine (M2M) devices, such as vending machines or GPS trackers for example, will also be affected by the 2G Network closure unless they are compatible with the 3G/4G mobile network.


If you’re using a 2G or 3G single band machine-to-machine (M2M) device, you’ll need to upgrade to a 4G capable M2M device, also replace any 2G SIM cards and replace any 3G SIMs that are not compatible with your new device. To discuss the solution, speak to your Optus Account Manager, or your M2M hardware provider.







The Optus 2G mobile network uses 900 MHz spectrum.




Yes, any device that is 2G only will be affected by this change. This will also include business devices that use 2G machine to machine (M2M) technology (such as some EFTPOS / credit card machines).




The list below advises some of the most frequently used 2G handsets, please check to see if you are using one of these devices.  


  • Samsung GT – C3520
  • Samsung GT – E1205T
  • Alcatel 2001X
  • Nokia 2220s
  • Nokia 101
  • Nokia 1010
  • Nokia 2630
  • Nokia 1208
  • Nokia 1112
  • Nokia 6300
  • Nokia 3315
  • Nokia 2220s




If you have not upgraded your 2G or 3G Single Band (2100MHz) device prior to Optus closing its 2G mobile network, you will see one of two things on the screen when you are in an area which previously had Optus 2G coverage:


  • “SOS only”, “Emergency Only” or similar message or symbol. This will happen if you are in an area where another mobile network operator has 2G coverage. In this situation, you can make an emergency phone call (police, fire, or ambulance) by dialing “000” or “112”.  Your phone will be unable to make any other type of phone call, receive any phone call, or send or receive any SMS or data.  Note that Telstra is closing its 2G mobile network down on 1 December 2016; or

  • “No service”, an antenna icon with a crossed-line through it, or other similar symbol.  This means that your phone has no connectivity to any mobile network and cannot make or receive any phone calls (including emergency calls) or send or receive any SMS or data.




While 2G SIMs will continue to work in some 3G devices, older SIMs will not fit into new 4G devices. Optus recommends upgrading your 2G SIM card. SIM replacement is free of charge at Optus stores.




No, once you upgrade and activate your new SIM replacement, all existing voicemail settings and any saved voicemail messages will be retained.



You can recycle your old 2G mobile and their accessories through the MobileMuster program and drop them off at any Optus retail store The recycling service is free, allowing customers to recycle their old mobiles in a safe and secure way.


MobileMuster is a not for profit mobile phone recycling program, voluntarily funded by industry, including Optus who have been part of the program since 1998. For more information about mobile phone recycling visit:




The list below includes some of the most frequently used 3G Single Band (2100MHz) devices. Please check to see if you are using one of these devices.  


3G 2100 Single Band Handsets

  • Samsung Galaxy S2 (GT-19100).


Please note that while most are 3G Dual Band U900 capable, there may be some that are not. Please check your Samsung S2 device. 


  • Samsung SM-G130H
  • Apple iPhone 3GS
  • Apple iPad 2 (A1396)
  • Nokia Lumia 520 (RM-915)
  • Nokia C2-01.5
  • Apple iPhone 3G
  • Samsung Trend Plus (GT-S7580L)
  • Samsung GT-S5310B
  • ZTE F286 (This is 900/2100)




3G single band devices use the Optus mobile 3G 2100/ 2G 900 network. Customers with a 2G SIM in a 3G single band device may continue to use the Optus 3G 2100 MHz network, however it is possible their Optus mobile network coverage could be reduced (depending on where they use their device) and their ability to make or receive calls or texts, or access the internet may be impacted. This is because, from the 2G network closure dates,  the 3G single band device will no longer access a mobile service in current 2G 900MHz locations.  We recommend advising customers to check their 3G device and coverage at




After the shutdown date, any services using a 2G device will no longer work and, any insurance policies attached to the 2G device will be cancelled.


If any of the impacted services on your account are 3G single-band devices, those services will not lose their phone number or any insurance policies attached to the device associated with that service.




by Contributor nitokris
‎2016-12-05 04:35 PM

Hi, I just got a txt saying that I'll need to get a new phone because mine is apparently 2G Smiley Sad
But my phone has a 3G sim card in it...Does that mean I can still use it or is all hope lost for my beloved phone?

by Frequent Visitor phb
‎2016-12-08 06:27 PM


Can I still use my prepaid account with an Iphone 4s? 

Can I get a free SIM card in any Optus store to replace my old SIM card?

And the number will still be the same?

Thank you ...


by Moderator Mike-N
‎2016-12-09 05:23 AM

Hi @phb Smiley Happy You sure can use your prepaid account in an iPhone 4S. If you head into an Optus store they'll issue you a new SIM card for free and transfer your existing phone number onto it. Please let us know if you have any other questions. 

by Occasional Visitor KtD81
‎2016-12-09 08:11 AM

Hi I just brought my phone yesterday to use until I get my iPhone 6 fixed after Xmas  (with the intent of giving it to my son for use for when he goes out) and had no prior warning that it would be useless by April 2017! I don't think that's fair or right at all - if I had of known this prior to purchasing it I would of opted for a different phone!!! So do you's do the right thing by your customers in circumstances like this and offer a refund or a new product or???


by New Member MyRia
‎2016-12-09 10:23 AM

I don't like whatis going on here! I am happy with what I have got as I am on a pesion and the phone and plan I have suits me. I have a Samsung red plipphone which protects my screen as well. Now because Optus is changing their net work which will so called benifit all!!! I get an offer of a misserly $29 of a new suitable (for Optus)phone, (not for me) and to get it I have to lay out more money. To get this offer I must do it before the 26th of this month, very convenient for me being on the pension which is my only income so close to Christmas!!. I think that Optus should pay for the whole new phone, with that I do not expect the most expensive one but the cheapest one with 4G!! If people want a more expensive one they can than pay for that themselves. Where is the Christmas spirit of big brother Optus!!

I am not happy and certainly will explore other providers before deciding to stay with Optus!



by Occasional Visitor KtD81
‎2016-12-09 11:13 AM



by Occasional Visitor Ksh95
‎2016-12-13 02:13 PM

Why fix something that isn't broken? It still works perfectly fine and people are happy using it. There will be lots of unhappy people. What ever happened to the customer comes first and customer service skills? There won't be much of that going on if you take something away that works well for the customers. You already took away a prepaid plan from me that I was on for at least 5 years that was working fine. Just money grabbing that's what it is!! 

by New Member KK1
‎2017-01-15 09:46 PM

The top right hand corner of my new Huawei Y560 phone says 3G. But when I typed in the imei number into the optus site to double check if everything is ok, optus system is telling me that my phone is 2G and I need to buy a new phone!!  WTH. Me phone is only about 2 months old. So what do I do now? Tried to call Optus but the option to 'talk' to a 'person' only gave a recorded message that said a link will be texted to me and to use that link to resolve my question. Then when I clicked on the link, it asked me to log on (and I have no idea what logon it is telling me to use as I have never had any online logon whatever with optus before this). Anyways, then I got a warning message on screen saying the link they sent me is an unsecured link and to basically proceed at my own risk. What is going on? How do I actually get to talk to a human being to sort out this fiasco?

by New Member Jessabela
‎2017-02-16 04:53 PM

You know, I have to say that I am VERY irritated by the fact that I have to spend possibly hundreds of dollars on a new phone, from minimum wage (buying a new phone, for me, could literally be a week's paycheck), go through the drama of finding a new prepaid plan etc (because I have one that PERFECTLY works for me right now, and I won't be able to keep using it) just because you guys decided you want to turn the network off. Honestly, I couldn't care less about "making room for new technology", I just want to be able to contact people without being jerked around like this. You have no idea how much this is inconveniencing me, and I'm fairly sure I'm not the only one.

by RetiredModerator Hollie
‎2017-02-17 09:37 AM

Hey @Jessabela, there are definitely a lot of benefits to going onto a 3G or 4G compatible phone and offer, we do understand that purchasing a mobile outright is an out of pocket expense which is why you have the option of paying it off over 4 interest free instalments via AfterPay if eligible and our base prepaid handset starts at $29. You can find more info and handset options ​​​​​​​here → TongueSmiley Tongue. Hollie

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