Callsign of Amateur License in the Philippines.
DX1PAR
DX- prefix, 1 – amateur district/region, PAR – suffix
The standard format for Philippine callsigns is 2×3 – where 2 stands for the prefix letters (4D-4I or DU-DZ), and 3 stands for the suffix letters, both of which are assigned and regulated by the National Telecommunications Commission. A suffix can have as much as three (3) characters, and as little as one (1).
Prefixes
The NTC assigns prefixes depending on the privileges of the amateur license or for special events:
- Class A – Advanced Class (DU or 4F)
- Class B – General Class (DV)
- Class C – Technician Class (DW)
- Class D – Foundation Class (DY)
Additional Allocation of Prefixes in the Amateur Radio Service
- Class A – Advanced Class (4E)
- Class B – General Class (4I)
- Class C – Technician Class (4G)
- Class D – Foundation Class (4H)
Copyright
Philippines Amateur Radio Association Inc.
4H1FOC Amateur Radio Station 