Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:22       31:1        37:30       41:48       46:6      
  62:7        66:1        69:1        74:4        77:16       78:5      
  79:6        80:9        81:36       82:5        83:17       84:5      
  85:39       86:1        87:1        89:25       91:56       93:17     
  94:2        95:6       109:7       176:6       178:1       185:48     
 188:22      212:54      213:14      216:1       217:27     
