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Would this Japanese phone work on AT&T Prepaid?

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Would this Japanese phone work on AT&T Prepaid?

Hi all. I am looking at this used phone to buy from Japan (it's the Panasonic DMC-CM1 btw). I looked up their website and the following is supported by the phone:

 

【4G (LTE)】
Support band: FDD Band 1, 3, 
4, 5, 7, 8, 20 Category: 4 
【3G (WCDMA)】
Support band: FDD I, IV, V, VIII 
HSDPA Category: 24 
HSUPA Category: 6 
【2G (GSM)】
Support band: 850, 900, 1800, 1900 
GPRS / EGPRS: Class 10

 

Additional info- "not sure if it would help":

Usable frequency range (center frequency)2412 MHz to 2462 MHz (1 ch - 11 ch)

 

Would it fully work on AT&T including LTE?

 

Thank you

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Re: Would this Japanese phone work on AT&T Prepaid?

Hello @DrGogu


That is a great question!

 

AT&T PREPAID uses a GSM based network operating on the following frequencies/bands:

  • 3G WCDMA/UMTS/HSDPA/HSPA+-850/1900MHz Bands 2 & 5
  • 4G LTE - 700/850/1900/2100/2300MHz Bands 2, 4, 5, 12, 17, 29, 30, 40, 66

It looks like the Panasonic LUMIX Communication Camera CM1 (DMC-CM1) supports the 3G (WCDMA), and 4G (LTE) frequencies/bands required to use the AT&T PREPAID Network.

The LUMIX DMC-CM1 uses a microSIM card which can be ordered here, or by visiting an AT&T store. For details on rates, feature packages please visit us att.com/prepaid.

You can chat with Panasonic Support http://panasonic.com/contactinfo to confirm before your buy.


Kenneth, AT&T Community Specialist


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Contributor

Re: Would this Japanese phone work on AT&T Prepaid?

Thanks a lot for your reply Kenneth..!

 

I see you linked to the US version from the Panasonic website.  The US version has different supported bands as follows:

 

 

 

 

clarification!

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Re: Would this Japanese phone work on AT&T Prepaid?

@DrGogu

The bands AT&T posted are the ones required.  

WCDMA/3g 2 and 5 (850 and 1900)

The primary LTE band is 12/17.  Without it you will likely be on 3g service all the time.

 

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‎12-31-2018 5:35 PM

Re: Would this Japanese phone work on AT&T Prepaid?

Hi @DrGogu

Thanks for pointing that out. Please allow me to clarify.
I was working off North American specifications only.

Its not the bands used, as much as its the usable frequency range. Looking back at your original post (OP) you noted the  Japanese models usable center frequency ranges 2412/2462MHz (1 ch - 11 ch), whereas AT&T operates at 850/1900Mhz 3G WCDMA/UMTS/HSDPA/HSPA+, and up to 2300MHz 4G LTE.

We encounter this often with BYO Devices made solely for the Japanese, or South Korean markets. The DMC-CM1 will have an IMEI. Here's a tool you can use to double check to make sure the device works on our network using the IMEI.

We hope this clears things up.

Kenneth, AT&T Community Specialist


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Re: Would this Japanese phone work on AT&T Prepaid?

So I guess if the frequency is out of range, then the phone will not even pick up any signal? 

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Re: Would this Japanese phone work on AT&T Prepaid?

Hi @DrGogu

 

Thanks for posting back.

From the information in your OP it appears that way. To be sure please check out the BYOD tool to check the IMEI before your buy.

Kenneth, AT&T Community Specialist


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Ask a question to get help from the AT&T Community or support from AT&T specialists. If this reply helped you please use Accept solution to mark it as an Accepted Solution.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
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