Advertised prefixes smaller than registry allocations (per /8 block)
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   2:4         5:36       24:10       31:12       37:33       41:250    
  46:15       50:25       62:18       63:51       64:223      65:54     
  66:184      67:92       68:38       69:131      70:24       71:5      
  72:44       74:197      75:1        76:47       77:23       78:5      
  79:14       80:13       81:38       82:8        83:19       84:7      
  85:48       86:6        87:6        88:1        89:39       91:78     
  92:8        93:50       94:11       95:6        96:26       97:3      
  98:16       99:156     102:17      107:45      108:252     109:24     
 173:138     174:3       176:13      177:9       178:7       179:13     
 181:2       184:9       185:178     186:4       187:24      188:30     
 190:18      191:28      197:349     201:25      203:1       208:213    
 209:299     212:178     213:35      216:317     217:33     
