Official administrative data

Convert an old address to the new one

Write hamlet, commune/ward, district and province separated by commas. Diacritics are optional and abbreviations are accepted (P.12, Q., TX., TT., H., TP.HCM).

Examples:Ấp Mỹ Phú B, xã Hậu Mỹ Phú, huyện Cái Bè, tỉnh Tiền Giang P.12, Q. Gò Vấp, TP.HCM Xã Phúc Lợi, huyện Hưng Nguyên, Nghệ An Xã Đồng Tâm, huyện Bình Liêu, Quảng Ninh

Old address (until 30 June 2025)

Xã Cao Thăng, Huyện Trùng Khánh, Tỉnh Cao Bằng

New address (from 7/1/2025)

Xã Đoài Dương, Tỉnh Cao Bằng

View Xã Đoài Dương

Commune level	Xã Cao Thăng → Xã Đoài Dương (01525)
District level	Huyện Trùng Khánh ceased operating on 7/1/2025
Province level	Tỉnh Cao Bằng → Tỉnh Cao Bằng
Effective date	7/1/2025 – the date the new commune and province governments officially began operating

Legal basis

Commune level

1657/NQ-UBTVQH15

Adopted 6/16/2025; new commune government operating from 7/1/2025

Number checked, full text pending

Province level

NQ 202/2025/QH15

Adopted 12 June 2025; new province operating from 7/1/2025

District level

Ceased operating

From 7/1/2025 under Resolution 203/2025/QH15 amending the Constitution

Xã Đoài Dương was formed from

Data sources and limitations

Administrative-unit catalogue of the General Statistics Office (old cut-off 1 March 2025, current up to 20 September 2026); the old → new mapping was re-checked against official codes.
Communes split across several new units are being added from the full text of the 34 resolutions; once available, all targets will be shown.
Hamlets and neighbourhoods have no national catalogue and are kept exactly as you typed them.
Results are for reference; for official procedures, check the documents issued by the competent authority.

Commune level

Xã Cao Thăng → Xã Đoài Dương (01525)

District level

Huyện Trùng Khánh ceased operating on 7/1/2025

Province level

Tỉnh Cao Bằng → Tỉnh Cao Bằng

Effective date

7/1/2025 – the date the new commune and province governments officially began operating

Legal basis

Commune level

1657/NQ-UBTVQH15

Adopted 6/16/2025; new commune government operating from 7/1/2025

Number checked, full text pending

Province level

NQ 202/2025/QH15

Adopted 12 June 2025; new province operating from 7/1/2025

District level

Ceased operating

From 7/1/2025 under Resolution 203/2025/QH15 amending the Constitution

Data sources and limitations

Administrative-unit catalogue of the General Statistics Office (old cut-off 1 March 2025, current up to 20 September 2026); the old → new mapping was re-checked against official codes.

Communes split across several new units are being added from the full text of the 34 resolutions; once available, all targets will be shown.

Hamlets and neighbourhoods have no national catalogue and are kept exactly as you typed them.

Results are for reference; for official procedures, check the documents issued by the competent authority.