Advertised prefixes smaller than registry allocations (per /8 block)
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   2:3         5:20       24:4        31:8        37:4        41:234    
  46:8        50:7        62:19       63:42       64:76       65:10     
  66:79       67:60       68:24       69:58       70:2        71:1      
  72:24       74:62       76:51       77:20       78:6        79:11     
  80:19       81:34       82:17       83:17       84:10       85:79     
  86:7        87:1        89:18       91:77       92:4        93:7      
  94:9        95:6        96:8        97:3        98:2       100:1      
 102:47      107:17      108:17      109:14      173:10      176:13     
 177:10      178:6       179:13      181:1       184:2       185:103    
 186:3       187:17      188:16      189:3       190:18      191:28     
 197:315     201:39      208:123     209:130     212:186     213:22     
 216:100     217:23     
