Advertised prefixes smaller than registry allocations (per /8 block)
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   4:8         6:9        12:1123     13:16       15:35       16:16     
  17:17       20:48       24:1270     25:1        32:101      34:2      
  38:76       40:134      43:11       44:3        45:13       47:33     
  52:3        53:3        55:1        56:6        57:58       61:621    
  62:819      63:2440     64:2754     65:2814     66:4074     67:540    
  68:1644     69:953      80:633      81:376      82:261      83:70     
 128:124     129:378     130:118     131:144     132:50      133:2      
 134:262     135:24      136:188     137:152     138:137     139:97     
 140:188     141:252     142:214     143:110     144:190     145:106    
 146:422     147:148     148:557     149:155     150:151     151:147    
 152:541     153:109     154:3       155:221     156:92      157:94     
 158:217     159:259     160:115     161:171     162:472     163:128    
 164:222     165:343     166:249     167:312     168:372     169:148    
 170:529     171:35      193:3814    194:2806    195:2163    201:75     
 208:3364    209:3682    210:1810    211:854     212:1473    213:1654   
 216:4781    217:1227    218:312     219:199     220:378     221:41     
 222:20     
