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       50:24       62:18       63:51       64:222      65:54     
  66:182      67:92       68:38       69:132      70:23       71:3      
  72:44       74:194      75:1        76:48       77:23       78:5      
  79:10       80:13       81:38       82:8        83:19       84:7      
  85:47       86:6        87:6        88:1        89:39       91:79     
  92:8        93:49       94:11       95:5        96:26       97:3      
  98:16       99:156     102:17      107:45      108:243     109:25     
 173:135     174:3       176:13      177:9       178:7       179:13     
 181:2       184:9       185:179     186:4       187:24      188:30     
 190:18      191:28      197:341     201:25      203:1       208:218    
 209:291     212:178     213:34      216:317     217:31     
