Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:22       24:3        31:1        37:30       41:248    
  46:6        50:5        62:4        63:36       64:64       65:11     
  66:90       67:53       68:19       69:45       70:3        72:19     
  74:63       76:31       77:21       78:6        79:10       80:10     
  81:37       82:5        83:15       84:6        85:40       86:6      
  87:1        89:24       91:60       93:18       94:2        95:6      
  96:8        97:2        98:2       102:3       107:1       108:11     
 109:11      173:5       176:5       177:7       179:10      185:30     
 186:3       187:19      188:16      190:17      191:28      197:177    
 201:20      208:45      209:115     212:83      213:12      216:64     
 217:6      
