Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:19       24:2        31:8        37:3        41:109    
  46:7        62:6        63:1        64:7        74:3        77:18     
  78:6        79:11       80:12       81:32       82:5        83:16     
  84:9        85:20       87:1        89:18       91:55       93:7      
  94:5        95:6       102:34      109:12      176:4       178:1      
 185:60      188:12      197:116     212:52      213:13      216:1      
 217:16     
