Advertised prefixes smaller than registry allocations (per /8 block)
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  24:4        37:1        41:150      50:2        62:6        63:36     
  64:76       65:4        66:56       67:55       68:15       69:48     
  70:2        71:1        72:23       74:59       76:47       77:9      
  80:12       81:1        82:12       84:7        85:32       86:8      
  87:1        89:3        91:22       92:2        93:1        96:7      
  97:3        98:2       102:13      107:1       108:11      109:11     
 173:10      176:8       177:20      178:4       179:10      181:1      
 184:3       185:18      186:3       187:19      188:4       189:3      
 190:17      191:53      197:153     201:36      208:105     209:130    
 212:140     213:8       216:100     217:9      
