Simple web-based tool to generate APRS-IS callsign passcodes for the APRS-IS network.

Callsign.js is a library for fuzzy querying various radio stations callsign information

PiFunk Radio Transmitter - with FM/AM-Modulation for HAM-Bands (CB 27 & PMR 446)

Downloads the latest ham radio call sign (pdf) file from the Bundesnetzagentur web site and transposes its content to a CSV format

ARRL Ham Radio Call Sign Search

Aircraft Registration Prefix Dataset

Specification for Amateur Radio Numeric Callsign Encoding (HAM-64/Ham-Addr)

Real-time flight tracking app using OpenSky Network API, built with Streamlit for interactive data visualisation of global flights.

Finnish Radio Amateur callsigns

An app for quickly finding out what country / DXCC entity the callsign belongs to

Application for parsing Amateur Radio callsigns.

dump1090 JSON alarm parser

Query the Canadian Amateur Radio Callsign Database

Callsign simulator for practising HAM calls

GUI and command-line program to fetch amateur radio call sign information

C# application to ingest a CSV file of data points and return a CSV file containing information from the FCC ULS database.

Call Lookup plugin for the V3NEA Ham Cockpit

Kıyı Emniyeti Genel Müdürlüğü Çağrı İşareti Sorgulama

📻 Highlight call signs in web pages with this JavaScript library

System for detecting and recognizing callsigns in text transcripts of aviation VHF communication.