Advertised prefixes smaller than registry allocations (per /8 block)
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   2:3         5:20       24:4        31:1        37:4        41:128    
  46:8        50:6        62:18       63:43       64:72       65:10     
  66:85       67:59       68:24       69:57       70:2        71:1      
  72:24       74:62       76:51       77:21       78:6        79:11     
  80:17       81:35       82:16       83:17       84:11       85:60     
  86:7        87:1        89:18       91:78       92:4        93:7      
  94:6        95:7        96:8        97:3        98:2       100:1      
 102:14      107:17      108:17      109:13      173:9       176:13     
 177:10      178:6       179:14      181:1       184:2       185:97     
 186:3       187:17      188:15      189:3       190:17      191:28     
 197:119     201:38      208:122     209:134     212:190     213:22     
 216:104     217:24     
