There are 2 problems about the France region codes:
typo in FR-IDF\t
does not take into account the last change of the norm ISO 3166
Last change:
Effective date of change
Short description of change (en) Short description of change (fr)
2021-11-25
Addition of category European collectivity in eng & fra; Addition of European collectivity FR-6AE; Addition of metropolitan collectivity with special status FR-69M; Change of category name from metropolitan department to metropolitan collectivity with special status for FR-75; Change of subdivision code from FR-75 to FR-75C; Addition of category overseas departemental collectivity in eng & fra; Change of category name from overseas department to overseas departemental collectivity for FR-971, FR-974, FR-976; Addition of category overseas unique territorial collectivity in eng & fra; Change of category name from overseas department to overseas unique territorial collectivity for FR-972, FR-973; Deletion of category name overseas department; Deletion of overseas region FR-GF, FR-GP, FR-MQ, FR-RE, FR-YT; Deletion of category name overseas region; Change of parent subdivision of FR-67, FR-68; Deletion of parent subdivion of FR-971, FR-972, FR-973, FR-974, FR-976; Modification of Remark part 2; Update List Source and Code Source
There are 2 problems about the France region codes:
Incorrect :
Source : https://www.iso.org/obp/ui/#iso:code:3166:FR