Date | Country | Change |
| 1930.07.04 |  Eritrea | Ordinariate of Eritrea (Eritrean Rite) was established |
| 1951.10.31 | Eritrea | Ordinariate of Eritrea (Eritrean Rite) was promoted as Apostolic Exarchate of Asmara |
| 1961.02.20 | Eritrea | Apostolic Exarchate of Asmara (Eritrean Rite) was promoted as Diocese of Asmara (became suffragan of Addis Abeba) |
| 1995.12.21 | Eritrea | Diocese of Barentu (Eritrean Rite) was established (from Diocese of Asmara, from the suppressed Apostolic Vicariate of Asmara and became suffragan of Addis Abeba) |
| 1995.12.21 | Eritrea | Diocese of Keren (Eritrean Rite) was established (from Diocese of Asmara, from the suppressed Apostolic Vicariate of Asmara and became suffragan of Addis Abeba) |
| 2012.02.24 | Eritrea | Diocese of Segheneity (Eritrean Rite) was established (from Diocese of Asmara and became suffragan of Addis Abeba) |
| 2015.01.19 | Eritrea | Diocese of Asmara (Eritrean Rite) was promoted as Metropolitanate sui juris of Asmara (with suffragan sees Barentu, Keren and Segheneity) |
