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De-Bogonising New Address Blocks
Report - 20051008

Previous day's report | Next day's report

Summary

All ASes
89.192.0.0/16 is seen by 56 out of 71 ASes (78 %)
89.255.248.0/21 is seen by 56 out of 71 ASes (78 %)
90.192.0.0/16 is seen by 56 out of 71 ASes (78 %)
90.255.248.0/21 is seen by 56 out of 71 ASes (78 %)
91.192.0.0/16 is seen by 56 out of 71 ASes (78 %)
91.255.248.0/21 is seen by 56 out of 71 ASes (78 %)
193.0.0.0/21 is seen by 59 out of 71 ASes (83 %)
84.205.83.0/24 is seen by 51 out of 71 ASes (71 %)
Baseline 193.0.0.0/21
89.192.0.0/16 is seen by 45 out of 59 ASes (76 %)
89.255.248.0/21 is seen by 45 out of 59 ASes (76 %)
90.192.0.0/16 is seen by 45 out of 59 ASes (76 %)
90.255.248.0/21 is seen by 45 out of 59 ASes (76 %)
91.192.0.0/16 is seen by 45 out of 59 ASes (76 %)
91.255.248.0/21 is seen by 45 out of 59 ASes (76 %)
84.205.83.0/24 is seen by 39 out of 59 ASes (66 %)
Baseline 84.205.83.0/24
89.192.0.0/16 is seen by 48 out of 51 ASes (94 %)
89.255.248.0/21 is seen by 48 out of 51 ASes (94 %)
90.192.0.0/16 is seen by 48 out of 51 ASes (94 %)
90.255.248.0/21 is seen by 48 out of 51 ASes (94 %)
91.192.0.0/16 is seen by 48 out of 51 ASes (94 %)
91.255.248.0/21 is seen by 48 out of 51 ASes (94 %)
193.0.0.0/21 is seen by 39 out of 51 ASes (76 %)

Details

Column Descriptions: AS Number - autonomous system numbers seen anywhere in a path to any of the prefixes; Sees ... - a tick (or 'Y' if viewing this without graphics) indicates that we see the specified prefix with this AS somewhere in the AS Path; Peers ... - a tick here indicates that this AS is seen as an immediate neighbour of the AS announcing the specified prefix.

AS NumberSees 89.192.0.0 /16Sees 89.255.248.0 /21Sees 90.192.0.0 /16Sees 90.255.248.0 /21Sees 91.192.0.0 /16Sees 91.255.248.0 /21Sees 193.0.0.0 /21Sees 84.205.83.0 /24|Peers 89.192.0.0 /16Peers 89.255.248.0 /21Peers 90.192.0.0 /16Peers 90.255.248.0 /21Peers 91.192.0.0 /16Peers 91.255.248.0 /21Peers 193.0.0.0 /21Peers 84.205.83.0 /24
  174NNNNNNYN|        
  286YYYYYYYY|      Y 
  513YYYYYYYY|        
  559YYYYYYYN|        
  701YYYYYYNY|        
 1103YYYYYYYY|      Y 
 1221YYYYYYYY|        
 1239YYYYYYYN|        
 1273NNNNNNYN|        
 1299YYYYYYYY|YYYYYYY 
 1853YYYYYYYY|        
 2116YYYYYYYY|        
 2497YYYYYYYY|        
 2516YYYYYYYY|        
 2857YYYYYYYY|        
 2914YYYYYYNY|        
 3257YYYYYYYY|      Y 
 3267NNNNNNYN|        
 3277YYYYYYYY|        
 3320NNNNNNYN|      Y 
 3333YYYYYYYY|        
 3343NNNNNNYN|        
 3356NNNNNNYN|      Y 
 3549YYYYYYYY|        
 3741YYYYYYYY|        
 4608YYYYYYYY|        
 4637YYYYYYYY|        
 4777YYYYYYYY|        
 5392YYYYYYYY|        
 6453YYYYYYNY|YYYYYY Y
 6461YYYYYYNY|        
 6695YYYYYYYN|        
 6762YYYYYYNY|YYYYYY Y
 7018YYYYYYYY|        
 7575YYYYYYYY|        
 8195YYYYYYYN|        
 8210YYYYYYYN|      Y 
 8220YYYYYYNY|        
 8289NNNNNNYN|        
 8331YYYYYYYY|        
 8342NNNNNNNY|        
 8402NNNNNNYN|        
 8434YYYYYYYY|        
 8447YYYYYYYY|        
 8631YYYYYYNY|        
 8763YYYYYYYY|        
 8928NNNNNNYY|        
11537YYYYYYYN|        
12654YYYYYYNY|        
12695NNNNNNYN|        
12779YYYYYYYY|        
12793YYYYYYYY|        
12859NNNNNNYN|      Y 
12976YYYYYYYN|        
13030YYYYYYYY|      Y 
13062NNNNNNYN|        
13237YYYYYYYY|      Y 
15772YYYYYYYY|        
15837YYYYYYYY|        
16215YYYYYYYY|        
20483YYYYYYYY|        
20562YYYYYYNY|YYYYYY Y
20640YYYYYYYY|        
20932YYYYYYYY|YYYYYYYY
20965YYYYYYYN|        
25232YYYYYYNY|YYYYYY Y
25462NNNNNNYN|      Y 
25560YYYYYYYY|        
28895NNNNNNYY|        
29329YYYYYYNY|        
29686YYYYYYYY|      Y 

Some Explanations...

Not seeing the RIPE NCC's prefix 193.0.0.0/21 is probably caused by seeing one of the other prefixes from a peer which does not provide the RIS with a full feed.

Seeing the /16 but not the /21 in the new allocations is probably caused by incorrect prefix length based filtering somewhere along the line.

Seeing the newly allocated prefixes but not the 195.80.239.0/24 prefix is probably caused by filtering based on the RIR's minimum allocation size somewhere.

How these statistics were gathered

For each of the prefixes (89.192.0.0/16 89.255.248.0/21 90.192.0.0/16 90.255.248.0/21 91.192.0.0/16 91.255.248.0/21 193.0.0.0/21 84.205.83.0/24), all RIB entries and Updates for a single day were extracted from the RIS database and from this a list of all AS Paths seen for each prefix was generated. We class an AS as "seeing" one of the prefixes if that AS appears anywhere in an AS Path to that prefix. That an AS is shown as not seeing a particular prefix only indicates that this does not appear in the RIS.

All AS Paths...

20483 12976 8195 1299 1299 1299 12654
8331 20483 12976 8195 1299 1299 1299 12654
29329 8631 20483 12976 8195 1299 1299 1299 12654
3277 8631 20483 12976 8195 1299 1299 1299 12654
1103 20562 12654
13030 20562 12654
3333 20562 12654
8434 8210 20562 12654
20932 12654
286 25232 12654
513 286 25232 12654
2116 8220 513 286 25232 12654
25560 8220 513 286 25232 12654
2914 8220 513 286 25232 12654
559 286 25232 12654
1103 20965 559 286 25232 12654
7575 11537 20965 559 286 25232 12654
1853 20965 559 286 25232 12654
513 20965 559 286 25232 12654
15837 8220 513 20965 559 286 25232 12654
16215 8220 513 20965 559 286 25232 12654
2116 8220 513 20965 559 286 25232 12654
25560 8220 513 20965 559 286 25232 12654
2914 8220 513 20965 559 286 25232 12654
5392 8220 513 20965 559 286 25232 12654
15772 6695 8220 513 20965 559 286 25232 12654
8763 286 25232 12654
29686 25232 12654
12793 6461 25232 12654
1853 6461 25232 12654
20640 6461 25232 12654
2857 6461 25232 12654
8447 25232 12654
12779 8928 25232 12654
12793 8928 25232 12654
1299 8928 25232 12654
28895 1299 8928 25232 12654
15772 8928 25232 12654
15837 8928 25232 12654
16215 8928 25232 12654
20640 8928 25232 12654
5392 8928 25232 12654
20483 8342 8928 25232 12654
3277 20483 8342 8928 25232 12654
8331 20483 8342 8928 25232 12654
29329 8631 20483 8342 8928 25232 12654
3277 8631 20483 8342 8928 25232 12654
8434 8928 25232 12654
8763 8928 25232 12654
13237 6453 12654
2497 6453 12654
3257 6453 12654
3549 6453 12654
4608 1221 4637 6453 12654
3741 701 6453 12654
7018 6453 12654
12779 1239 6762 12654
4777 2516 6762 12654
7575 6762 12654
3333
1103 3333
2116 1273 1103 3333
7575 11537 20965 1103 3333
1853 20965 1103 3333
559 20965 1103 3333
513 559 20965 1103 3333
3549 1103 3333
12793 12859 3333
15837 12859 3333
16215 12859 3333
8447 174 12859 3333
8763 174 12859 3333
20640 12859 3333
25560 12859 3333
286 12859 3333
15772 6695 12859 3333
8763 12859 3333
28895 1299 3333
3277 3267 3343 1299 3333
8331 12695 12695 8402 8402 1299 3333
13030 3333
13237 3333
20932 3333
3277 13062 25462 3333
2857 286 3333
8331 12695 12695 1239 286 286 3333
3741 286 3333
20483 12976 8195 8928 286 3333
29686 3333
3257 3333
5392 3257 3333
8289 3320 3333
12779 3356 3333
2497 3356 3333
4777 2516 3356 3333
4608 1221 4637 3356 3333
7018 3356 3333
8434 8210 3333
 

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