Narrative:

It is a great concern of mine to always having to deal with extremely similar call signs during my flights. Here are some examples of similar flight numbers and call signs that I have encountered in the past six months while flying. [Company] XX1 flying at the same time as [company] XX2; or [company] XXX3 and XXX4. These extremely similar call signs are found during approaches; departures and enroute portion of flights. We; [company] pilots; have to be extremely careful and have to check and double check a lot of times in order not to fly somebody else's clearance. ATC has to constantly warn us of similar callsigns on frequency. The amount of extra workload; concentration and worry that this issue poses on us is unnecessary; extremely difficult; tasking and fatiguing. Not only on us pilots; but on air traffic controllers as well. [Company] is the only company to exercise such practice. I never hear ATC mentioning other companies having similar call sign issues. I know that this is a very common complaint amongst [company] pilots. Despite the multiple reports filed on this matter; [company] has done nothing. I cannot express enough how extremely hazardous this [company] practice is to the safety of flights. Thank you very much.

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Original NASA ASRS Text

Title: B767 pilot reported a company practice of issuing similar sounding callsigns that resulted in ATC confusion.

Narrative: It is a great concern of mine to always having to deal with extremely similar call signs during my flights. Here are some examples of similar flight numbers and call signs that I have encountered in the past six months while flying. [Company] XX1 flying at the same time as [Company] XX2; or [Company] XXX3 and XXX4. These extremely similar call signs are found during approaches; departures and enroute portion of flights. We; [Company] pilots; have to be extremely careful and have to check and double check a lot of times in order not to fly somebody else's clearance. ATC has to constantly warn us of similar callsigns on frequency. The amount of extra workload; concentration and worry that this issue poses on us is unnecessary; extremely difficult; tasking and fatiguing. Not only on us pilots; but on air traffic controllers as well. [Company] is the only company to exercise such practice. I never hear ATC mentioning other companies having similar call sign issues. I know that this is a very common complaint amongst [Company] pilots. Despite the multiple reports filed on this matter; [Company] has done nothing. I cannot express enough how extremely hazardous this [Company] practice is to the safety of flights. Thank you very much.

Data retrieved from NASA's ASRS site 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.