<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body><div>I'm looking for a regex that works for all international call signs. </div><div><br></div><div>Does it even exist? </div><div>Does JNOS compare connect call signs against a regex to see if it is in fact a real call sign?</div><div><br></div><div>Michael</div><div>N6MEF</div><div><br></div><div><br></div><div id="composer_signature"><div style="font-size:85%;color:#575757" dir="auto">Sent from my Verizon, Samsung Galaxy smartphone</div></div></body></html>