Advertised prefixes smaller than registry allocations (per /8 block)
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   3:1         4:4         6:9        12:978      13:14       15:28     
  16:9        17:21       20:46       24:1307     25:2        32:115    
  34:1        38:54       40:30       43:10       44:10       45:1      
  47:35       52:3        53:3        56:5        57:46       61:403    
  62:596      63:2461     64:2689     65:2942     66:3376     67:517    
  68:1299     69:329      80:496      81:218      82:8       128:99     
 129:274     130:105     131:121     132:49      133:2       134:208    
 135:8       136:70      137:153     138:105     139:113     140:176    
 141:214     142:157     143:103     144:172     145:46      146:398    
 147:110     148:431     149:105     150:130     151:131     152:562    
 153:175     154:6       155:207     156:77      157:83      158:189    
 159:217     160:105     161:205     162:470     163:119     164:216    
 165:337     166:206     167:391     168:297     169:138     170:518    
 171:31      193:3695    194:2703    195:1582    208:3843    209:3668   
 210:1214    211:594     212:1516    213:1350    216:4928    217:854    
 218:197     219:140     220:190     221:6      
