This file is indexed.

/usr/share/chirp/stock_configs/US Calling Frequencies.csv is in chirp 0.3.1-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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Location,Name,Frequency,Duplex,Offset,Tone,rToneFreq,cToneFreq,DtcsCode,DtcsPolarity,Mode,TStep,Skip,URCALL,RPT1CALL,RPT2CALL
1,6m Call,52.525000,-,0.500000,,88.5,88.5,023,NN,FM,5.00,,,,,
2,2m Call,146.520000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,
3,220 Call,223.500000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,
4,70cm Call,446.000000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,