| Year | From | To | ||
|---|---|---|---|---|
| 1779 | Diocese of Carpi, Italy | Erected | ||
| 1843 | Archdiocese of Baltimore, Maryland, USA
Archdiocese of Québec, Canada | Territory Lost | Vicariate Apostolic of Oregon Territory, USA (From California to Alaska, from the Rocky Mountains to the Pacific Ocean) | Erected |
| 1917 | Diocese of Santa Cruz de la Sierra, Bolivia (El Beni, Colonia, Caupolican, and Yuracarès) | Territory Lost | Vicariate Apostolic of El Beni o Beni, Bolivia | Erected |
| 1921 | Archdiocese of Mohilev, Belarus (Vladivostok, Irkutsk, Omsk, Tomsk, and Tashkent) | Territory Lost | Vicariate Apostolic of Siberia, Russian Federation | Erected |
| 1950 | Vicariate Apostolic of Nilo Equatoriale, Uganda | Name Changed | Vicariate Apostolic of Gulu, Uganda | Name Changed |
| 1973 | Diocese of Albenga, Italy | Name Changed | Diocese of Albenga-Imperia, Italy | Name Changed |
| 1975 | Delegation to Papua New Guinea | Name Changed | Delegation to Papua New Guinea and Solomon Islands | Name Changed |
| 1987 | Archdiocese of Durango, México (Llano Grande) | Territory Lost | Territorial Prelature of El Salto, Durango, México | Territory Added |
| 2001 | Archdiocese of N’Djaména, Chad (Guéra, Batha, Ouaddaï, Wadi Fira, and Ennedi)
Diocese of Sarh, Chad (Salamat) | Territory Lost | Prefecture Apostolic of Mongo, Chad | Erected |
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