text: Target Numbering
  Table H-4. Additional assignment of blocks of numbers (example)
  Numbers Battalion elements
  X000-X199 Battalion FSE
  X200-X299 Fire support team, Company A
  X300-X399 Fire support team, Company B
  X400-X499 Fire support team, Company C
  X500-X599 Fire support team, Company D
  X600-X699 Additional fire support team or fire support assets
  X700-X799 FDC, battalion or company mortars
  X800-X999 Spare
  FDC – fire direction center, FSE—fire support element, X – numeral assigned
  by higher headquarters