Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:21       31:1        37:30       46:6        62:7      
  66:1        69:1        74:4        77:15       78:5        79:10     
  80:9        81:36       82:5        83:16       84:6        85:39     
  86:1        89:22       91:50       93:17       94:2        95:6      
 102:1       109:4       176:6       178:1       185:45      188:20     
 212:53      213:14      216:1       217:27     
