The first digit indicates the region, second digit indicates sub-region and the third digit indicates the sorting district within the region.
Lencenye yekucala yaleligama ikhombisa etikweli-sayithi lelitsite, yesibili ikhombisa etikwesigaba lesibanti lelisayithi leliwela kuso bese lencenye yesitsatfu ngulekhodi yelive lapho lisayithi libhaliswe khona.