Advertised prefixes smaller than registry allocations (per /8 block)
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   4:12        6:11        8:123       9:2        12:3288     13:28     
  15:80       16:16       17:32       18:11       20:144      24:1844   
  25:2        32:97       33:3        34:8        38:429      40:160    
  41:225      43:19       44:2        47:45       52:12       53:1      
  55:113      56:9        57:117      58:565      59:679      60:456    
  61:1535     62:1372     63:2801     64:4411     65:3469     66:5294   
  67:1556     68:1825     69:3071     70:1073     71:345      72:2315   
  73:9        74:1295     75:505      76:152      77:346      78:25     
  80:1227     81:1148     82:1055     83:634      84:672      85:1329   
  86:457      87:694      88:450      89:1350     90:15       91:740    
  97:14       98:15      116:324     117:116     121:390     122:968    
 123:348     124:1231    125:1522    128:443     129:462     130:272    
 131:500     132:103     133:28      134:344     135:69      136:245    
 137:151     138:272     139:203     140:665     141:324     142:739    
 143:371     144:498     145:114     146:485     147:264     148:703    
 149:283     150:187     151:253     152:166     153:195     154:12     
 155:426     156:290     157:313     158:273     159:302     160:216    
 161:205     162:334     163:309     164:584     165:833     166:557    
 167:458     168:793     169:181     170:727     171:57      172:2      
 189:170     190:1310    192:15      193:5743    194:4491    195:3680   
 196:8       198:17      199:13      200:27      201:2298    202:35     
 203:69      204:101     205:2       206:36      207:82      208:4298   
 209:4578    210:3730    211:1856    212:1910    213:2307    214:4      
 215:2       216:5606    217:1645    218:773     219:695     220:1611   
 221:573     222:719    
