Advertised prefixes smaller than registry allocations (per /8 block)
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   2:3         5:20       24:4        31:1        37:4        41:204    
  46:8        50:8        62:17       63:43       64:73       65:10     
  66:70       67:60       68:23       69:61       70:2        71:1      
  72:24       74:63       76:48       77:25       78:6        79:11     
  80:20       81:35       82:15       83:17       84:5        85:76     
  86:7        87:1        89:19       91:81       92:4        93:8      
  94:7        95:7        96:8        97:3        98:2       100:1      
 102:4       107:13      108:16      109:15      173:10      176:15     
 177:10      178:6       179:15      181:1       184:7       185:95     
 186:3       187:18      188:15      189:3       190:18      191:28     
 197:299     201:40      208:118     209:127     212:191     213:24     
 216:112     217:17     
