Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 21 is...

21 is

  • Karachi City Code

More Meanings For 21:

  • NAK ( Negative Acknowledgement)
  • Karachi City Code

21 is also in:

Acronym Definition Searched: UQY UPP SES NZG 37916 RVD GIMP CP SDA 30310 SBW 38563 BW 30005 OMI