De-Bogonising New Address Blocks Report for RIPE NCC- 20071125

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De-Bogonising New Address Blocks Report for RIPE NCC - 20071125

Previous day's report | Next day's report

Summary

All ASes
95.192.0.0/16	is seen by 47 out of 67 ASes	(70 %)
95.255.248.0/21	is seen by 47 out of 67 ASes	(70 %)
186.128.0.0/16	is seen by 49 out of 67 ASes	(73 %)
186.127.248.0/21	is seen by 49 out of 67 ASes	(73 %)
193.0.0.0/21	is seen by 56 out of 67 ASes	(83 %)
84.205.83.0/24	is seen by 48 out of 67 ASes	(71 %)
Baseline 193.0.0.0/21
95.192.0.0/16	is seen by 40 out of 56 ASes	(71 %)
95.255.248.0/21	is seen by 40 out of 56 ASes	(71 %)
186.128.0.0/16	is seen by 41 out of 56 ASes	(73 %)
186.127.248.0/21	is seen by 41 out of 56 ASes	(73 %)
84.205.83.0/24	is seen by 40 out of 56 ASes	(71 %)
Baseline 84.205.83.0/24
95.192.0.0/16	is seen by 44 out of 48 ASes	(91 %)
95.255.248.0/21	is seen by 44 out of 48 ASes	(91 %)
186.128.0.0/16	is seen by 42 out of 48 ASes	(87 %)
186.127.248.0/21	is seen by 42 out of 48 ASes	(87 %)
193.0.0.0/21	is seen by 40 out of 48 ASes	(83 %)

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 95.192.0.0 /16	Sees 95.255.248.0 /21	Sees 186.128.0.0 /16	Sees 186.127.248.0 /21	Sees 193.0.0.0 /21	Sees 84.205.83.0 /24	\|	Peers 95.192.0.0 /16	Peers 95.255.248.0 /21	Peers 186.128.0.0 /16	Peers 186.127.248.0 /21	Peers 193.0.0.0 /21	Peers 84.205.83.0 /24
174							\|
286							\|
513							\|
559							\|
1103							\|
1280							\|
1299							\|
1916							\|
2118							\|
2497							\|
2914							\|
3216							\|
3257							\|
3269							\|
3320							\|
3327							\|
3333							\|
3356							\|
3549							\|
5392							\|
5413							\|
6320							\|
6453							\|
6461							\|
6762							\|
6830							\|
7575							\|
8167							\|
8331							\|
8359							\|
8402							\|
8470							\|
8928							\|
10429							\|
11537							\|
12350							\|
12654							\|
12695							\|
12779							\|
12859							\|
12956							\|
12976							\|
13237							\|
14361							\|
15756							\|
16150							\|
16467							\|
20483							\|
20562							\|
20932							\|
20965							\|
22548							\|
24875							\|
25232							\|
25462							\|
26943							\|
27664							\|
27750							\|
28895							\|
28917							\|
29073							\|
29222							\|
29449							\|
29686							\|
31477							\|
34102							\|
39637							\|

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 (95.192.0.0/16 95.255.248.0/21 186.128.0.0/16 186.127.248.0/21 193.0.0.0/21 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...

1916 27750 11537 1103 1103 1103 12654
7575 11537 1103 1103 1103 12654
1916 11537 20965 1103 12654
559 20965 1103 12654
513 559 20965 1103 12654
12350 513 559 20965 1103 12654
29222 513 559 20965 1103 12654
12779 8928 513 513 559 20965 1103 12654
5392 8928 513 513 559 20965 1103 12654
29449 5392 8928 513 513 559 20965 1103 12654
29222 6830 1103 12654
13237 12859 12654
286 12859 12654
16150 286 12859 12654
29222 286 12859 12654
513 286 12859 12654
12350 513 286 12859 12654
12779 8928 513 513 286 12859 12654
5392 8928 513 513 286 12859 12654
29449 5392 8928 513 513 286 12859 12654
2914 12859 12654
3333 12859 12654
22548 10429 12956 12654
12859 20562 12654
20932 12654
14361 25462 12654
28895 15756 25462 12654
20483 2118 25462 12654
5392 3257 25462 12654
29449 5392 3257 25462 12654
3356 25462 12654
12779 3356 25462 12654
1280 3356 25462 12654
16467 3356 25462 12654
1280 3549 25462 12654
27664 3549 25462 12654
34102 3216 3549 25462 12654
8402 25462 12654
8331 8402 25462 12654
20483 12976 8470 25462 12654
26943 12654
13237 26943 12654
29073 26943 12654
3333 26943 12654
16467 2914 12654
7575 2914 12654
5413 12654
1299 5413 12654
28917 1299 5413 12654
2497 6453 12654
6461 6453 12654
6762 6453 12654
14361 6461 12654
2497 6461 12654
8359 12654
3333
1103 3333
1916 27750 20965 1103 3333
559 20965 1103 3333
7575 20965 1103 3333
25232 1103 3333
12859 3333
12779 174 12859 3333
29222 174 12859 3333
20483 12976 3327 174 12859 3333
5392 174 12859 3333
20562 12859 3333
513 286 12859 3333
29073 12859 3333
2914 12859 3333
31477 12859 3333
20483 12976 3327 12859 3333
39637 12859 3333
6461 12859 3333
14361 6461 12859 3333
13237 3333
20932 3333
24875 3333
25462 3333
26943 3333
286 3333
27664 3549 286 3333
34102 3216 3549 286 3333
29686 3333
12350 3320 3333
22548 8167 3320 3333
3356 3333
8331 12695 12695 3356 3333
1280 3356 3333
28895 15756 1299 3356 3333
28917 1299 3356 3333
16467 3356 3333
2497 3356 3333
8402 3356 3333
6320 3333
6453 6320 3333
6762 3333
29449 3269 6762 3333
22548 8167 6762 3333
8359 3333


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