Advertised prefixes smaller than registry allocations (per /8 block)
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  24:4        37:1        41:129      50:1        62:7        63:35     
  64:70       65:4        66:60       67:54       68:15       69:45     
  70:2        71:1        72:23       74:54       76:50       77:9      
  80:9        81:1        82:12       84:7        85:31       86:7      
  87:1        89:3        91:24       92:2        93:1        96:8      
  97:2        98:2       100:1       102:33      107:1       108:14     
 109:10      173:9       176:8       177:17      178:4       179:13     
 181:1       184:4       185:22      186:3       187:18      188:4      
 189:3       190:22      191:28      197:166     201:41      208:110    
 209:121     212:135     213:7       216:95      217:8      
