Advertised prefixes smaller than registry allocations (per /8 block)
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   4:5         6:9        12:1000     13:15       15:28       16:9      
  17:23       20:46       24:1295     25:2        32:120      34:1      
  38:56       40:32       43:10       44:9        47:34       52:3      
  53:3        56:5        57:45       61:443      62:625      63:2500   
  64:2653     65:3005     66:3500     67:552      68:1321     69:423    
  80:506      81:218      82:18      128:111     129:276     130:105    
 131:121     132:37      133:2       134:210     135:12      136:71     
 137:153     138:112     139:113     140:150     141:212     142:154    
 143:103     144:169     145:47      146:396     147:109     148:446    
 149:108     150:159     151:124     152:519     153:97      154:7      
 155:209     156:74      157:83      158:180     159:205     160:107    
 161:204     162:517     163:123     164:223     165:336     166:207    
 167:394     168:303     169:129     170:533     171:38      193:3561   
 194:2708    195:1661    208:3798    209:3714    210:1249    211:542    
 212:1520    213:1398    216:4737    217:909     218:209     219:147    
 220:217     221:17     
