Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:18       24:4        31:1        37:3        41:202    
  46:7        50:3        62:5        63:5        64:36       65:3      
  66:38       67:54       68:4        69:45       70:2        72:22     
  74:24       76:50       77:17       78:3        79:11       80:12     
  81:26       82:4        83:16       84:2        85:20       86:5      
  87:1        89:19       91:58       93:7        94:2        95:6      
  96:8        97:2        98:2       100:1       108:4       109:13     
 173:8       176:14      177:9       178:5       179:15      185:53     
 186:3       187:18      188:11      189:3       190:16      191:28     
 197:334     201:39      208:107     209:118     212:51      213:13     
 216:69      217:15     
