Advertised prefixes smaller than registry allocations (per /8 block)
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   5:1        24:3        37:1        41:250      50:3        62:1      
  63:35       64:62       65:9        66:67       67:51       68:14     
  69:45       70:3        72:19       74:63       76:31       84:2      
  86:5        87:1        89:10       91:11       96:8        97:2      
  98:2       102:9       107:1       108:15      109:13      173:6      
 174:1       177:9       179:12      181:1       184:7       185:8      
 186:5       187:9       189:1       190:26      191:28      197:341    
 201:8       208:65      209:100     212:103     216:111    
