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De-Bogonising New Address Blocks
Report - 20040807

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Summary

All ASes
85.192.0.0/16 is seen by 47 out of 58 ASes (81 %)
85.255.248.0/21 is seen by 47 out of 58 ASes (81 %)
86.192.0.0/16 is seen by 46 out of 58 ASes (79 %)
86.255.248.0/21 is seen by 46 out of 58 ASes (79 %)
87.192.0.0/16 is seen by 46 out of 58 ASes (79 %)
87.255.248.0/21 is seen by 46 out of 58 ASes (79 %)
88.192.0.0/16 is seen by 46 out of 58 ASes (79 %)
88.255.248.0/21 is seen by 46 out of 58 ASes (79 %)
195.80.239.0/24 is seen by 43 out of 58 ASes (74 %)
193.0.0.0/21 is seen by 48 out of 58 ASes (82 %)
Baseline 193.0.0.0/21
85.192.0.0/16 is seen by 44 out of 48 ASes (91 %)
85.255.248.0/21 is seen by 44 out of 48 ASes (91 %)
86.192.0.0/16 is seen by 44 out of 48 ASes (91 %)
86.255.248.0/21 is seen by 44 out of 48 ASes (91 %)
87.192.0.0/16 is seen by 44 out of 48 ASes (91 %)
87.255.248.0/21 is seen by 44 out of 48 ASes (91 %)
88.192.0.0/16 is seen by 44 out of 48 ASes (91 %)
88.255.248.0/21 is seen by 44 out of 48 ASes (91 %)
195.80.239.0/24 is seen by 35 out of 48 ASes (72 %)
Baseline 195.80.239.0/24
85.192.0.0/16 is seen by 36 out of 43 ASes (83 %)
85.255.248.0/21 is seen by 36 out of 43 ASes (83 %)
86.192.0.0/16 is seen by 36 out of 43 ASes (83 %)
86.255.248.0/21 is seen by 36 out of 43 ASes (83 %)
87.192.0.0/16 is seen by 36 out of 43 ASes (83 %)
87.255.248.0/21 is seen by 36 out of 43 ASes (83 %)
88.192.0.0/16 is seen by 36 out of 43 ASes (83 %)
88.255.248.0/21 is seen by 36 out of 43 ASes (83 %)
193.0.0.0/21 is seen by 35 out of 43 ASes (81 %)

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 85.192.0.0 /16Sees 85.255.248.0 /21Sees 86.192.0.0 /16Sees 86.255.248.0 /21Sees 87.192.0.0 /16Sees 87.255.248.0 /21Sees 88.192.0.0 /16Sees 88.255.248.0 /21Sees 195.80.239.0 /24Sees 193.0.0.0 /21|Peers 85.192.0.0 /16Peers 85.255.248.0 /21Peers 86.192.0.0 /16Peers 86.255.248.0 /21Peers 87.192.0.0 /16Peers 87.255.248.0 /21Peers 88.192.0.0 /16Peers 88.255.248.0 /21Peers 195.80.239.0 /24Peers 193.0.0.0 /21
  174YYYYYYYYNY|          
  286YYYYYYYYYY|         Y
  297YYYYYYYYYY|          
  513YYYYYYYYYY|          
  559YYYYYYYYYY|          
 1103YYYYYYYYYY|         Y
 1221YYYYYYYYYY|          
 1239NNNNNNNNNY|          
 1273NNNNNNNNNY|          
 1299NNNNNNNNYN|          
 1853YYYYYYYYYY|          
 2116YYYYYYYYYY|        Y 
 2497YYYYYYYYNY|          
 2516NNNNNNNNYN|        Y 
 2914YYYYYYYYYY|        Y 
 3257YYYYYYYYYY|         Y
 3291NNNNNNNNYN|        Y 
 3320YYYYYYYYYY|         Y
 3333YYYYYYYYYY|          
 3356YYYYYYYYYY|         Y
 3549YYYYYYYYYY|          
 3741YYYYYYYYNY|          
 4608YYYYYYYYYY|          
 4637YYYYYYYYYY|          
 4777YYYYYYYYYY|          
 5392YYYYYYYYNY|          
 5400NNNNNNNNYN|          
 5417YYYYYYYYYY|YYYYYYYYYY
 5511YYYYYYYYYY|         Y
 6320YYYYYYYYNY|YYYYYYYY Y
 6453YYYYYYYYYY|YYYYYYYYY 
 6762YYYYYYYYNY|YYYYYYYY Y
 7018YYYYYYYYYY|        Y 
 8210YYYYYYYYYY|        YY
 8220YYYYYYYYNN|          
 8251YYYYYYYYNY|YYYYYYYY Y
 8289NNNNNNNNNY|          
 8333NNNNNNNNYN|        Y 
 8434YYYYYYYYYY|          
 8447NNNNNNNNYN|        Y 
 8928YYNNNNNNNN|          
 9177YYYYYYYYYY|          
12654YYYYYYYYYN|          
12779YYYYYYYYYY|        Y 
12793YYYYYYYYNY|          
12859YYYYYYYYYY|YY      YY
13030YYYYYYYYYY|YYYYYYYYYY
13129YYYYYYYYNY|YYYYYYYY Y
13237YYYYYYYYYY|        YY
15569NNNNNNNNYN|        Y 
20562NNNNNNNNNY|          
20854YYYYYYYYYY|          
20932YYYYYYYYYY|         Y
20965YYYYYYYYYY|          
25232YYYYYYYYYY|YYYYYYYYYY
28747YYYYYYYYYY|YYYYYYYYYY
29686YYYYYYYYYY|YYYYYYYYYY
31477YYYYYYYYYY|          

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 (85.192.0.0/16 85.255.248.0/21 86.192.0.0/16 86.255.248.0/21 87.192.0.0/16 87.255.248.0/21 88.192.0.0/16 88.255.248.0/21 195.80.239.0/24 193.0.0.0/21), 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 doesn't appear in the RIS.

All AS Paths...

12779 12654
12859 12654
13030 12654
12793 13030 12654
13237 13030 12654
20932 13030 12654
9177 3320 13030 12654
3741 13030 12654
559 13030 12654
1103 20965 559 13030 12654
1853 20965 559 13030 12654
513 20965 559 13030 12654
12779 8220 513 20965 559 13030 12654
5392 8220 513 20965 559 13030 12654
7018 8220 513 20965 559 13030 12654
13129 12654
13237 12654
1299 13237 12654
5511 13237 12654
15569 12654
2116 12654
4777 2516 12654
25232 12654
286 25232 12654
3356 25232 12654
12779 8928 25232 12654
5392 8928 25232 12654
8434 8928 25232 12654
28747 12654
2914 174 28747 12654
297 174 28747 12654
20854 28747 12654
20932 28747 12654
31477 28747 12654
3257 28747 12654
2116 3257 28747 12654
3333 28747 12654
2914 12654
29686 12654
3291 12654
20932 3291 12654
513 3291 12654
559 513 3291 12654
1103 20965 559 513 3291 12654
1853 20965 559 513 3291 12654
5417 12654
12859 6320 12654
13237 6320 12654
6453 12654
13237 6453 12654
4777 2497 6453 12654
286 6453 12654
3549 6453 12654
4608 1221 4637 6453 12654
5511 6453 12654
8210 6762 12654
8434 8210 6762 12654
7018 12654
297 7018 12654
8434 8210 12654
12859 8251 12654
13237 8251 12654
3356 8251 12654
5400 8333 8333 8333 8333 8333 8333 12654
8447 12654
3333
1103 3333
1853 20965 1103 3333
559 20965 1103 3333
513 559 20965 1103 3333
3549 1103 3333
2116 3549 1103 3333
12859 3333
12793 12859 3333
2914 174 12859 3333
297 174 12859 3333
20562 12859 3333
20854 12859 3333
31477 12859 3333
13030 3333
13129 3333
13237 3333
20932 3333
25232 3333
286 3333
3741 286 3333
6453 286 3333
28747 3333
29686 3333
5392 3257 3333
8289 3320 3333
9177 3320 3333
3356 3333
12779 1239 3356 3333
2116 1273 3356 3333
4777 2497 3356 3333
4608 1221 4637 3356 3333
7018 3356 3333
5417 3333
5511 3333
6320 3333
6762 3333
8210 3333
8434 8210 3333
8251 3333
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