Municipalities connect provinces with settlements in Bulgaria. This level improves postal code lookup accuracy for shipping, address validation, and local delivery planning.
Select an area to explore postal codes.
Developer API
Free JSON for Твърдица / Tvurdica.
Requests need a free API key.
https://api.listpostcode.com/v1/countries/BG/resolve?path=/sliven/tvurdicacurl -H "x-api-key: YOUR_API_KEY" \
"https://api.listpostcode.com/v1/countries/BG/resolve?path=/sliven/tvurdica"Municipalities connect provinces with settlements in Bulgaria. This level improves postal code lookup accuracy for shipping, address validation, and local delivery planning.
Select an area to explore postal codes.
Developer API
Free JSON for Твърдица / Tvurdica.
Requests need a free API key.
https://api.listpostcode.com/v1/countries/BG/resolve?path=/sliven/tvurdicacurl -H "x-api-key: YOUR_API_KEY" \
"https://api.listpostcode.com/v1/countries/BG/resolve?path=/sliven/tvurdica"