Advertised prefixes smaller than registry allocations (per /8 block)
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   2:3         5:25       24:4        31:11       37:2        41:124    
  46:17       50:12       62:18       63:54       64:212      65:78     
  66:125      67:79       68:25       69:95       70:47       71:49     
  72:29       74:166      76:60       77:22       78:6        79:11     
  80:23       81:34       82:17       83:17       84:16       85:74     
  86:14       87:2        88:1        89:25       91:85       92:6      
  93:7        94:9        95:6        96:22       97:3        98:15     
  99:137     100:1       102:41      107:50      108:241     109:20     
 173:132     174:2       176:19      177:17      178:8       179:14     
 181:1       184:3       185:152     186:3       187:17      188:20     
 189:3       190:20      191:28      197:167     201:40      208:189    
 209:214     212:199     213:33      216:227     217:25     
