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De-Bogonising New Address Blocks
Report - 20050310

Previous day's report | Next day's report

Summary

All ASes
86.192.0.0/16	is seen by 0 out of 60 ASes	(0 %)
86.255.248.0/21	is seen by 0 out of 60 ASes	(0 %)
87.192.0.0/16	is seen by 46 out of 60 ASes	(76 %)
87.255.248.0/21	is seen by 46 out of 60 ASes	(76 %)
88.192.0.0/16	is seen by 46 out of 60 ASes	(76 %)
88.255.248.0/21	is seen by 46 out of 60 ASes	(76 %)
84.205.83.0/24	is seen by 50 out of 60 ASes	(83 %)
193.0.0.0/21	is seen by 53 out of 60 ASes	(88 %)
Baseline 193.0.0.0/21
86.192.0.0/16	is seen by 0 out of 53 ASes	(0 %)
86.255.248.0/21	is seen by 0 out of 53 ASes	(0 %)
87.192.0.0/16	is seen by 42 out of 53 ASes	(79 %)
87.255.248.0/21	is seen by 42 out of 53 ASes	(79 %)
88.192.0.0/16	is seen by 42 out of 53 ASes	(79 %)
88.255.248.0/21	is seen by 42 out of 53 ASes	(79 %)
84.205.83.0/24	is seen by 46 out of 53 ASes	(86 %)
Baseline 84.205.83.0/24
86.192.0.0/16	is seen by 0 out of 50 ASes	(0 %)
86.255.248.0/21	is seen by 0 out of 50 ASes	(0 %)
87.192.0.0/16	is seen by 41 out of 50 ASes	(82 %)
87.255.248.0/21	is seen by 41 out of 50 ASes	(82 %)
88.192.0.0/16	is seen by 41 out of 50 ASes	(82 %)
88.255.248.0/21	is seen by 41 out of 50 ASes	(82 %)
193.0.0.0/21	is seen by 46 out of 50 ASes	(92 %)

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 Number	Sees 86.192.0.0 /16	Sees 86.255.248.0 /21	Sees 87.192.0.0 /16	Sees 87.255.248.0 /21	Sees 88.192.0.0 /16	Sees 88.255.248.0 /21	Sees 84.205.83.0 /24	Sees 193.0.0.0 /21	\|	Peers 86.192.0.0 /16	Peers 86.255.248.0 /21	Peers 87.192.0.0 /16	Peers 87.255.248.0 /21	Peers 88.192.0.0 /16	Peers 88.255.248.0 /21	Peers 84.205.83.0 /24	Peers 193.0.0.0 /21
174									\|
286									\|
513									\|
559									\|
702									\|
1103									\|
1221									\|
1239									\|
1273									\|
1299									\|
1853									\|
2116									\|
2497									\|
2516									\|
3257									\|
3320									\|
3333									\|
3356									\|
3549									\|
3741									\|
4608									\|
4637									\|
4777									\|
5392									\|
5417									\|
5511									\|
6320									\|
6453									\|
6762									\|
7018									\|
7575									\|
8210									\|
8220									\|
8251									\|
8289									\|
8342									\|
8434									\|
8763									\|
9044									\|
9177									\|
11537									\|
12654									\|
12779									\|
12793									\|
12859									\|
13030									\|
13129									\|
13237									\|
15837									\|
20562									\|
20640									\|
20854									\|
20932									\|
20965									\|
25091									\|
25232									\|
25560									\|
28747									\|
29686									\|
31477									\|

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 (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 84.205.83.0/24 193.0.0.0/21), 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...

12859 12654
8342 1299 12654
13030 12654
12793 13030 12654
13237 13030 12654
15837 13030 12654
20640 13030 12654
25560 13030 12654
286 13030 12654
29686 13030 12654
5392 3257 13030 12654
513 3320 13030 12654
559 513 3320 13030 12654
1103 20965 559 513 3320 13030 12654
7575 11537 20965 559 513 3320 13030 12654
1853 20965 559 513 3320 13030 12654
25091 559 513 3320 13030 12654
12779 8220 513 3320 13030 12654
2116 8220 513 3320 13030 12654
5392 8220 513 3320 13030 12654
7018 8220 513 3320 13030 12654
8342 8220 513 3320 13030 12654
8434 8220 513 3320 13030 12654
3741 13030 12654
8763 13030 12654
3549 9044 13030 12654
9177 13030 12654
12859 13129 12654
31477 20562 12654
20932 12654
28747 12654
7575 174 28747 12654
3257 28747 12654
13237 3257 28747 12654
3333 3356 12654
4777 2497 6453 12654
3257 6453 12654
3549 6453 12654
4608 1221 4637 6453 12654
7018 6453 12654
12779 1239 6762 12654
3549 1239 6762 12654
2116 1273 6762 12654
13237 6762 12654
4777 2516 6762 12654
286 6762 12654
8289 3320 6762 12654
5511 6762 12654
8434 8210 6762 12654
12859 8251 12654
13237 8251 12654
3333 8251 12654
3333
1103 3333
7575 11537 1103 3333
12779 1239 1273 1103 3333
2116 1273 1103 3333
1853 20965 1103 3333
559 20965 1103 3333
25091 559 20965 1103 3333
513 559 20965 1103 3333
3549 1103 3333
12859 3333
12793 12859 3333
15837 12859 3333
20562 12859 3333
20640 12859 3333
20854 12859 3333
25560 12859 3333
31477 12859 3333
13030 3333
13237 3333
20932 3333
25232 3333
286 3333
286 286 3333
3741 286 3333
6453 286 3333
8763 286 3333
28747 3333
29686 3333
3257 3333
5392 3257 3333
8289 3320 3333
9177 3320 3333
3356 3333
13237 3356 3333
4777 2497 3356 3333
4608 1221 4637 3356 3333
7018 3356 3333
5417 3333
5511 3333
6320 3333
6762 3333
8342 702 3333
8434 8210 3333
8251 3333


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