Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:22       31:1        37:30       41:40       46:6      
  62:7        66:1        69:1        74:4        77:16       78:5      
  79:7        80:9        81:36       82:5        83:17       84:5      
  85:38       86:1        89:22       91:47       93:17       94:2      
  95:6       109:5       176:6       178:1       185:47      188:21     
 212:52      213:14      216:1       217:27     
