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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: comp.mobile.android
Subject: Re: Move Service to New Phone (?)
Date: Wed, 4 Sep 2024 19:53:22 +0200
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On 2024-09-04 17:42, VanguardLH wrote:
> "Carlos E.R." <robin_listas@es.invalid> wrote:
> 
>> VanguardLH wrote:
>>
>>> croy <croy@spam.invalid.net> wrote:
>>>
>>>> If I get another phone of the same make and model (in this case a Moto g5
>>>> Plus), can I just move the SIM card to the new phone and continue on?
>>>
>>> The IMEI for the phones is different.  Some lock to the IMEI of the
>>> phone, not to the SIM card.  Check with your cellular provider.  They
>>> should know how they track an account.  Tell them which make and model
>>> of phones you have, and if they are SIM card or cardless (eSIM).
>>
>> I've never noticed such a thing.
>>
>> I just moved over the card (sometimes with a size change), then moved
>> the data.
> 
> Again, depends on the cellular provider.  I use an MVNO (Tracfone), and
> asked them about moving the SIM card from my old phone to a new phone
> that I might get later.  They said No, that I couldn't just move over
> the SIM card to the new phone.  I had to buy another SIM card from them
> (~$5 USD) for the new phone, and register it with them which is when
> they link the new phone's IMEI with their SIM card's ID.  I remember
> having to get a new SIM card from them before when I got a new phone
> (now my current/old phone).  During the registration process to grant
> access to their service, they ask for the IMEI of the phone in which I
> use their SIM card.  They link IMEI + ICCID to my account.
> 
> Getting your cellular carrier to track your phone on your behalf
> requires jumping through a lot of hoops proving you're the owner of the
> phone and account, and may even require a court order.  They don't have
> to jump through any loops to link IMEI to SIM ID (aka ICCID), but
> they'll make you jump.  You can ask the police since the mobile carriers
> will work with them, but obviously the police get involved in criminal
> situations, not because you lost your phone, or it was stolen.
> 
> https://www.airdroid.com/parent-control/how-to-track-phone-using-imei-online/
> 
> While most phones will show the IMEI somewhere under Settings -> About
> phone -> SIM [Status|Card], not all will show you the SIM card's ID aka
> ICCID (Integrated Circuit Identification number), a 18-22 digit number
> usually printed on the SIM card.  On some phones, you can dial *#06# to
> get IMEI, MEID, ICCD, MSISDN, and serial number.  On my ancient phone
> (c.2016, Android 8), just the IMEI is returned.
> 
> Because the ICCID is unique to every SIM card, mobile carriers can
> simply track accounts to the ICCID, and not bother with the IMEI, yes,
> you should be able to simply move the old SIM card to a new phone.  All
> depends on how a mobile carrier tracks which IDs in an account to
> determine if you can access their services.
> 
> https://www.infobip.com/glossary/iccid-number
> https://onomondo.com/blog/iccid-number-explained/


Maybe the regulators here impede charging money to move to another 
phone, impeding this silliness.


-- 
Cheers, Carlos.