Advertised prefixes smaller than registry allocations (per /8 block)
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   2:2         5:22       24:3        31:1        37:31       41:251    
  46:6        50:5        62:6        63:36       64:64       65:11     
  66:90       67:52       68:19       69:45       70:3        72:19     
  74:66       76:36       77:21       78:5        79:10       80:10     
  81:37       82:5        83:16       84:8        85:40       86:6      
  87:1        89:24       91:59       93:18       94:2        95:6      
  96:8        97:2        98:2       102:11      108:13      109:16     
 173:6       176:6       177:9       178:1       179:12      181:1      
 184:2       185:56      186:4       187:24      188:22      190:18     
 191:28      197:348     201:24      208:70      209:181     212:158    
 213:14      216:107     217:27     
