Vodafone's system (in fact, all networks) know which SIM cards are available on their network. This is a basic security measure to stop people registering PAYT SIM's from other networks onto their network!
As soon as you try to perform a SIM-swap and use a SIM number that the network doesn't recognise it would be rejected.
I've pointed this out on What Mobile's iPhone discussion. SSN = SIM Serial Number, by the way :)
Vodafone 8944100,
H3 89442000.
AT&T 890111
So when your network operative enters 890111xxxxx into their SIM swap program it would be cross checked with the network's database of SIM's on the network and reject it as a foreign SIM.
Morely Dotes:
It's "grammar" not "grammer" - If you want to be picky ;)
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SIM swappage...
Vodafone's system (in fact, all networks) know which SIM cards are available on their network. This is a basic security measure to stop people registering PAYT SIM's from other networks onto their network!
As soon as you try to perform a SIM-swap and use a SIM number that the network doesn't recognise it would be rejected.
I've pointed this out on What Mobile's iPhone discussion. SSN = SIM Serial Number, by the way :)
Vodafone 8944100,
H3 89442000.
AT&T 890111
So when your network operative enters 890111xxxxx into their SIM swap program it would be cross checked with the network's database of SIM's on the network and reject it as a foreign SIM.
Morely Dotes:
It's "grammar" not "grammer" - If you want to be picky ;)