Advertised prefixes smaller than registry allocations (per /8 block)
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   2:4         5:35       24:10       31:10       37:33       41:244    
  46:15       50:26       62:20       63:51       64:214      65:60     
  66:175      67:92       68:38       69:126      70:28       71:8      
  72:45       74:197      75:1        76:47       77:27       78:6      
  79:15       80:20       81:38       82:16       83:19       84:7      
  85:87       86:10       87:6        88:1        89:39       91:83     
  92:10       93:50       94:10       95:6        96:26       97:3      
  98:16       99:171     102:21      107:44      108:252     109:22     
 173:138     174:3       176:13      177:8       178:7       179:13     
 181:2       184:9       185:181     186:4       187:23      188:31     
 190:18      191:28      197:347     201:24      203:1       208:200    
 209:292     212:179     213:34      216:311     217:34     
