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→Console Serial Numbers: Better table of prefixes
Applying the algorithm, we get ((3 * 21) + 19) % 10 = 2, matching the example's check digit.
Applying the algorithm, we get ((3 * 21) + 19) % 10 = 2, matching the example's check digit.
The below is a table of known serial number letter prefixes.
The letter prefixes are a letter specifying the device, followed by one a letter specifying the region in which it was sold. Sometimes, a third letter is present; a current guess is that this letter distinguishes among factories for a given sales region. Note that several different sales regions' console may be considered to be the same region for region-locking purposes, such as Europe and Australia.
{| class="wikitable"
{| class="wikitable"
! Model !! Sales Region !! Region-Lock !! Prefix
! Model !! Device Prefix
|-
|-
| New 3DS XL/LL || Middle East / Southeast Asia || U.S. || QS
| 3DS || C
|-
| 3DS XL/LL || S
|-
| 2DS || A
|-
| New 3DS || Y
|-
| New 3DS XL/LL || Q
|}
{| class="wikitable"
! Sales Region !! Region Lock !! Region Suffix
|-
| Japan || Japan || JH, JF
|-
| North America || North America || W
|-
| Middle East / Southeast Asia || North America || S
|-
| Australia || Europe || AH
|}
|}