Advertised prefixes smaller than registry allocations (per /8 block)
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   2:3         5:20       24:4        31:1        37:4        41:207    
  46:8        50:8        62:17       63:43       64:72       65:10     
  66:86       67:60       68:23       69:60       70:2        71:1      
  72:24       74:63       76:51       77:20       78:6        79:11     
  80:17       81:36       82:15       83:17       84:5        85:75     
  86:7        87:1        89:19       91:80       92:4        93:8      
  94:6        95:7        96:8        97:3        98:2       100:1      
 102:7       107:17      108:16      109:15      173:9       176:15     
 177:9       178:6       179:15      181:1       184:6       185:94     
 186:3       187:18      188:15      189:3       190:17      191:28     
 197:115     201:39      208:122     209:135     212:191     213:23     
 216:116     217:18     
