You can export a list of all numbered extensions in an account using the Export List link on the Extensions page. Clicking the link will download the information as a CSV file.
The downloaded list includes:
- Extensions Number
- Extension Description (Name)
- Assigned Billing Tag
- Extension Type (Poly, Go, Algo, etc.) (Virtual extensions type is left blank)
Extensions that can't be dialed internally (Extensions without extension numbers) are not included on the exported extension list.