Advertised prefixes smaller than registry allocations (per /8 block)
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  24:4        37:1        41:159      50:3        62:4        63:35     
  64:65       65:4        66:68       67:54       68:16       69:45     
  70:2        71:1        72:23       74:56       76:50       77:11     
  80:5        81:2        82:11       83:1        84:2        85:35     
  86:7        87:1        89:3        91:24       92:2        93:1      
  96:8        97:2        98:2       100:1       102:1       107:1      
 108:14      109:10      173:9       176:8       177:8       178:4      
 179:12      184:6       185:16      186:3       187:18      188:5      
 189:3       190:17      191:28      197:115     201:38      208:110    
 209:121     212:132     213:8       216:107     217:5      
