Most common Callsign

Below are the Top 10 most common ident/callsigns of all airlines.

	Callsign	Airline	# of times
1	AAL626	American Airlines	21
2	AAL625	American Airlines	14
3	AAL422	American Airlines	9
4	ADV9151	Adventures	8
5	ADV9150	Adventures	7
6	AAL301	American Airlines	7
7	AAL1172	American Airlines	6
8	AVE655	Avensa	6
9	AAL346	American Airlines	5
10	AAL2412	American Airlines	5