On 20 May 1913 it was renamed after its see as Apostolic Vicariate of Diégo-Suarez.
On 15 March 1923 it lost territory to establish the then Apostolic Vicariate of Majunga
On 14 September 1955 it was promoted as Diocese of Diégo-Suarez
Renamed on 28 October 1989 as Metropolitan Archdiocese of Antsiranana.
On 30 October 2000 it lost further territory to establish the Diocese of Fenoarivo Atsinanana.
Ecclesiastical province
The Metropolitan Archdiocese of Antsiranana has the following suffragan sees :
As per 2014, it pastorally served 662,873 Catholics (42.1% of 1,573,833 total) on 37,924 km2 in 26 parishes with 65 priests (51 diocesan, 14 religious), 194 lay religious (42 brothers, 152 sisters) and 54 seminarians.
It had a total population of about 2,211,890 in 2004. About 15.5% of the residents were Catholic. 46 Priests operated in the Archdiocese, making for a ratio of 7,464 Catholics per Priest. The Archbishop as of November 2013 is Benjamin Marc Ramaroson.
Edmond-Marie-Jean Wolff (C.S.Sp.), (11 December 1958 – 13 April 1967 see below), Titular Bishop of Phatanus (8 July 1941 – 14 September 1955), previously Apostolic Vicar of Majunga (Madagascar) (8 July 1941 – 13 February 1947)
Suffragan bishop of Diego Suarez
Edmond-Marie-Jean Wolff (C.S.Sp.), (see above 14 September 1955 – 11 December 1958 see below)
Metropolitan archbishops of Diego Suarez
Edmond-Marie-Jean Wolff (C.S.Sp.), (11 December 1958 – retired 13 April 1967), emeritate as Titular Archbishop of Gummi in Byzacena (13 April 1967 – resigned 24 May 1971), died 1990
Albert Joseph Tsiahoana, (13 April 1967 – 28 October 1989 see below); succeeding as former auxiliary bishop of Diégo-Suarez (Madagascar) (10 February 1964 – 13 April 1967) and Titular Bishop of Abthugni (10 February 1964 – 13 April 1967)
Michel Malo, Association of Priests of Prado (Ist. del Prado) (28 November 1998 – retired 27 November 2013); previously Titular Bishop of Croæ (1 September 1988 – 29 March 1996), first as Auxiliary Bishop of Mahajanga (Madagascar) (1 September 1988 – 18 October 1993) and next Auxiliary Bishop of Antsiranana (18 October 1993 – 29 March 1996), next Bishop of Mahajanga (Madagascar) (29 March 1996 – 28 November 1998)