Advertised prefixes smaller than registry allocations (per /8 block)
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   4:7         6:9        12:1092     13:17       15:29       16:16     
  17:16       20:46       24:1252     25:1        32:276      34:1      
  38:59       40:35       43:8        44:2        47:32       52:3      
  53:3        55:1        56:6        57:80       61:552      62:768    
  63:2457     64:2767     65:2668     66:3923     67:571      68:1907   
  69:772      80:567      81:328      82:120     128:235     129:388    
 130:127     131:141     132:57      133:1       134:303     135:22     
 136:200     137:185     138:203     139:148     140:243     141:248    
 142:194     143:110     144:160     145:107     146:487     147:138    
 148:504     149:137     150:176     151:139     152:521     153:103    
 154:3       155:251     156:97      157:109     158:194     159:212    
 160:118     161:153     162:484     163:128     164:412     165:348    
 166:243     167:302     168:369     169:138     170:522     171:35     
 192:13      193:3662    194:2852    195:2166    196:1       198:30     
 199:8       200:55      201:9       202:64      203:218     204:46     
 205:1       206:30      207:14      208:3607    209:3689    210:1476   
 211:664     212:1475    213:1610    215:3       216:4826    217:1094   
 218:218     219:186     220:261     221:32     
