Saint Barthelemy & Saint Martin Number Porting

Portable Number Types

Required Documents

All Number Types

• ☐ Letter of Authorization (LoA) — Standard international LoA form (downloadable template)
• ☐ National Address — Valid address within Saint Barthelemy or Saint Martin
• ☐ Latest Invoice — Current billing documentation from the existing service provider

Restrictions & Special Conditions

• A national address (within the territory) is required for all port requests regardless of number type.

Notes

• Saint Barthelemy (BL) and Saint Martin (MF) are French overseas collectivities in the Caribbean, sharing the +590 dialing code.
• Porting requirements are consistent across local, national, and toll-free number types.
• These territories share similar porting frameworks with other French overseas departments (Reunion, Guadeloupe, Martinique, French Guiana, Mayotte).
• The documentation requirements are minimal — LoA, national address proof, and latest invoice.