Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:22       31:1        37:30       46:6        62:7      
  66:1        69:1        74:4        77:16       78:5        79:7      
  80:9        81:36       82:5        83:17       84:6        85:38     
  86:1        89:22       91:48       93:17       94:2        95:6      
 109:5       176:6       178:1       185:45      188:20      212:52     
 213:14      216:1       217:27     
