# VTBB | Bangkok FIR Subsector

### Overview

Bangkok FIR (Flight Information Region) is basically the airspace that belong to Kingdom of Thailand. The FIR can be split into subsector to reduce ATC Workload for the following information.

<p class="callout info">Thai Language available in pdf file below, **<span lang="TH" style="font-size: 14.0pt; mso-ansi-font-size: 11.0pt; font-family: 'TH Sarabun New',sans-serif; mso-fareast-font-family: Aptos; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: TH;">ศึกษาเอกสารภาษาไทยได้ในไฟล์ </span>**<span style="font-size: 11.0pt; mso-bidi-font-size: 14.0pt; font-family: 'TH Sarabun New',sans-serif; mso-fareast-font-family: Aptos; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: TH;">**PDF**.  
</span>[B1-VTBB Subsector map.pdf](https://wiki.vacc-tha.org/attachments/1). <span style="font-size: 11.0pt; mso-bidi-font-size: 14.0pt; font-family: 'TH Sarabun New',sans-serif; mso-fareast-font-family: Aptos; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: TH;">  
</span></p>

[![VTBB-Sector Map FINAL.png](https://wiki.vacc-tha.org/uploads/images/gallery/2025-07/scaled-1680-/oWwC4yvv7DJ5SCfZ-vtbb-sector-map-final.png)](https://wiki.vacc-tha.org/uploads/images/gallery/2025-07/oWwC4yvv7DJ5SCfZ-vtbb-sector-map-final.png)

The priority of frequency shall be follow by top-down configuration on the following table.