Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2172      5:6096     24:4776     31:3787     37:5984     41:4610   
  46:6443     50:3052     62:3618     63:2451     64:7166     65:3133   
  66:6183     67:4434     68:2658     69:5424     70:2410     71:1030   
  72:4309     74:3927     75:2199     76:973      77:3445     78:2691   
  79:2144     80:2837     81:2585     82:2376     83:1856     84:2454   
  85:4746     86:1200     87:796    
