Narrative:

I was working the r-side of sector X. This sector is just north of approach. I had several air carrier X aircraft on frequency that I was vectoring for sequencing into the airport; three of which were air carrier X; flight abca; flight acca; and flight acaa. This happens almost every morning as these planes take off from [several airports]. I recommend that the air carrier looks at the time these aircraft take off for [the airport] and either change their departure times or change their call signs.

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Original NASA ASRS Text

Title: Enroute Controller voiced a safety concern regarding the similar sounding four digit call signs utilized by an Air Carrier company; frequently at the same time.

Narrative: I was working the R-Side of Sector X. This sector is just north of Approach. I had several Air Carrier X aircraft on frequency that I was vectoring for sequencing into the airport; three of which were Air Carrier X; Flight ABCA; Flight ACCA; and Flight ACAA. This happens almost every morning as these planes take off from [several airports]. I recommend that the Air Carrier looks at the time these aircraft take off for [the airport] and either change their departure times or change their call signs.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.