Where the same UPRN has been assigned to multiple records, only one record has been extracted (we have extracted the address record which appears first alphabetically).
Pan fydd yr un UPRN wedi'i neilltuo i fwy nag un cofnod, dim ond un cofnod sydd wedi'i dynnu (rydym wedi tynnu'r cofnod cyfeiriad sy'n ymddangos yn nhrefn yr wyddor gyntaf).