These are presumably from Ethnologue 11 (1988), but might be from the 10th edition. A significant number of these codes were assigned to different languages in Ethnologue 12, without the waiting period that would later be expected, so that…
DEFF 21011+ 1 MAY 1991 0151UCT W6SAJ Malibu California JIM 21006 1 MAY 1991 0204UCT ZL3KV Napier NEW Zealand Harry 21006 1 MAY 1991 1248UCT IK0UTA ROME Italy Angelo 28039+ 2 MAY 1991 0045UCT KJ6EF SAN Diego California LIN 28034 3 MAY 1991…
This chart shows draft language groups based on data extracted from wikidata. The Status cell indicates the nature of the items in the adjacent Contained cell: