ncc logo home what's new Whoisdb Search Site Map Frequently Asked Questions

De-Bogonising New Address Blocks
Report - 20040402

Introduction

84.128.0.0/11 is a production allocation to Deutsche Telekom; 84.192.0.0/16 and 84.255.248.0/21 are test prefixes; 195.80.239.0/24 is the RIS project's Beacon Anchor Prefix; 193.0.0.0/21 is the RIPE NCC's own production prefix.

Summary

All ASes
84.128.0.0/11 is seen by 40 out of 74 ASes (54 %)
84.192.0.0/16 is seen by 69 out of 74 ASes (93 %)
84.255.248.0/21 is seen by 70 out of 74 ASes (94 %)
195.80.239.0/24 is seen by 47 out of 74 ASes (63 %)
193.0.0.0/21 is seen by 48 out of 74 ASes (64 %)
Baseline 193.0.0.0/21
84.128.0.0/11 is seen by 38 out of 48 ASes (79 %)
84.192.0.0/16 is seen by 48 out of 48 ASes (100 %)
84.255.248.0/21 is seen by 48 out of 48 ASes (100 %)
195.80.239.0/24 is seen by 40 out of 48 ASes (83 %)
Baseline 195.80.239.0/24
84.128.0.0/11 is seen by 33 out of 47 ASes (70 %)
84.192.0.0/16 is seen by 44 out of 47 ASes (93 %)
84.255.248.0/21 is seen by 44 out of 47 ASes (93 %)
193.0.0.0/21 is seen by 40 out of 47 ASes (85 %)

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 84.128.0.0 /11Sees 84.192.0.0 /16Sees 84.255.248.0 /21Sees 195.80.239.0 /24Sees 193.0.0.0 /21|Peers 84.128.0.0 /11Peers 84.192.0.0 /16Peers 84.255.248.0 /21Peers 195.80.239.0 /24Peers 193.0.0.0 /21
  174NYYYY|     
  209NYYNN|     
  286YYYYY|Y  Y 
  297NYYYY|     
  513YYYYY|Y    
  559YYYYY|Y    
  701NYYNN|     
  702NYYNY|    Y
 1103YYYYY|    Y
 1136NYYNN|     
 1221YYYYY|     
 1239YYYNY|Y    
 1273NYYNN|     
 1299YYYYY|Y   Y
 1759YYYYY|   Y 
 1853YYYYY|Y    
 2119NYYNN|     
 2497YYYNY|Y    
 2516NYYYN|   Y 
 2529NYYNN|     
 2603YYYYY|   Y 
 2914YYYYY|Y  Y 
 3257YYYYY|Y   Y
 3291NYYYY| YYYY
 3320YYYYY|    Y
 3333YYYYY|Y    
 3356YYYYY|Y   Y
 3549YYYYY|Y    
 3561NYYNN|     
 3741YYYNY|     
 4608YYYYY|     
 4637YYYYY|Y    
 4777YYYYY|     
 5392YYYNY|     
 5400NNNYN|     
 5417YYYYY| YYYY
 5511NYYYY|     
 6320NYYYY| YYY 
 6453NYYNN|     
 6461YYYNN|Y    
 6667NYYNN|     
 6695NYYNN|     
 6730NYYNN|     
 6762YYYYY|YYYYY
 7018YYYYY|Y  Y 
 7911NYYNN|     
 8001NYYNN|     
 8210NYYNN|     
 8220YNNNN|Y    
 8251YYYYY| YYY 
 8289YYYYY|Y    
 8333NNNYN|   Y 
 8434YYYYY|     
 8447NNNYN|   Y 
 8928NYYNN|     
 9044NYYNN|     
 9177YYYYY|Y    
12654NYYYN|     
12779YYYYY|   Y 
12793NYYNY|     
12859YYYYY| YYYY
13030YYYYY|     
13129YYYNY|YYY Y
13237YYYYY|Y    
15569NYYYN| YYY 
15623YYYYY|    Y
15879NYYNY|  Y Y
20562NYYYY| YYY 
20847NNYNN|     
20854YYYYY| YYYY
20965NYYYY|     
24875NYYYN|     
25232YYYYY| YYYY
28747YYYYY| YYY 

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 84/8 is probably caused by incorrect prefix length based filtering somewhere along the line.

Seeing the 84/8 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 (84.128.0.0/11 84.192.0.0/16 84.255.248.0/21 195.80.239.0/24 193.0.0.0/21), 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
13129 12654
3333 1136 13129 12654
12779 1239 13129 12654
7018 1239 13129 12654
12793 13129 12654
13237 13129 12654
12859 13237 13129 12654
28747 13237 13129 12654
4777 2497 13129 12654
4777 2516 13129 12654
286 13129 12654
12859 286 13129 12654
25232 286 13129 12654
5417 286 13129 12654
513 3320 13129 12654
559 513 3320 13129 12654
1103 20965 559 513 3320 13129 12654
1853 20965 559 513 3320 13129 12654
2603 20965 559 513 3320 13129 12654
8289 3320 13129 12654
9177 3320 13129 12654
12859 3356 13129 12654
3741 13129 12654
6320 13129 12654
15879 6320 13129 12654
28747 15879 6320 13129 12654
12859 6461 13129 12654
5417 6461 13129 12654
1759 6667 13129 12654
8289 6667 13129 12654
8434 6667 13129 12654
6762 13129 12654
20854 6762 13129 12654
1759 1299 702 13129 12654
13237 702 13129 12654
15623 702 13129 12654
286 702 13129 12654
25232 286 702 13129 12654
5417 286 702 13129 12654
513 3320 702 13129 12654
559 513 3320 702 13129 12654
1103 20965 559 513 3320 702 13129 12654
1853 20965 559 513 3320 702 13129 12654
2603 20965 559 513 3320 702 13129 12654
8289 3320 702 13129 12654
5417 702 13129 12654
6762 702 13129 12654
20854 6762 702 13129 12654
297 701 702 13129 12654
7018 701 702 13129 12654
8434 2119 8210 13129 12654
13030 9044 13129 12654
15569 12654
12859 15569 12654
13030 15569 12654
15879 15569 12654
25232 15569 12654
3333 15569 12654
5417 15569 12654
28747 15879 12654
1299 1759 12654
1299 1299 1759 12654
20562 12654
20854 12654
4777 2516 12654
25232 12654
12859 25232 12654
15879 25232 12654
286 25232 12654
1103 20965 2603 12654
1853 20965 2603 12654
513 20965 2603 12654
559 513 20965 2603 12654
8289 2603 12654
8434 2603 12654
286 12654
28747 12654
13237 28747 12654
1299 13237 28747 12654
1299 1299 13237 28747 12654
1759 1299 13237 28747 12654
13030 13237 28747 12654
2914 174 13237 28747 12654
297 174 13237 28747 12654
3549 174 13237 28747 12654
25232 25232 6461 13237 28747 12654
8289 13237 28747 12654
8434 13237 28747 12654
24875 28747 12654
3257 28747 12654
3333 1136 3257 28747 12654
3741 1273 3257 28747 12654
13237 1299 3257 28747 12654
12859 13237 1299 3257 28747 12654
1759 1299 3257 28747 12654
13030 3257 28747 12654
13129 3257 28747 12654
13237 3257 28747 12654
12859 13237 3257 28747 12654
286 209 3257 28747 12654
13030 286 209 3257 28747 12654
25232 286 209 3257 28747 12654
4777 2497 3257 28747 12654
4777 2516 3257 28747 12654
286 3257 28747 12654
12859 286 3257 28747 12654
13030 286 3257 28747 12654
25232 286 3257 28747 12654
5417 286 3257 28747 12654
2914 3257 28747 12654
12779 1239 3257 3257 28747 12654
286 1239 3257 3257 28747 12654
13030 286 1239 3257 3257 28747 12654
2914 1239 3257 3257 28747 12654
13237 174 2914 1239 3257 3257 28747 12654
513 3320 1239 3257 3257 28747 12654
559 513 3320 1239 3257 3257 28747 12654
1103 20965 559 513 3320 1239 3257 3257 28747 12654
1853 20965 559 513 3320 1239 3257 3257 28747 12654
2603 20965 559 513 3320 1239 3257 3257 28747 12654
9177 6730 513 3320 1239 3257 3257 28747 12654
8289 3320 1239 3257 3257 28747 12654
9177 3320 1239 3257 3257 28747 12654
12859 3356 1239 3257 3257 28747 12654
3333 12859 3356 1239 3257 3257 28747 12654
513 3320 3356 1239 3257 3257 28747 12654
559 513 3320 3356 1239 3257 3257 28747 12654
1103 20965 559 513 3320 3356 1239 3257 3257 28747 12654
1853 20965 559 513 3320 3356 1239 3257 3257 28747 12654
2603 20965 559 513 3320 3356 1239 3257 3257 28747 12654
3333 3356 1239 3257 3257 28747 12654
3549 1239 3257 3257 28747 12654
4608 1221 4637 1239 3257 3257 28747 12654
12859 6461 1239 3257 3257 28747 12654
13237 6461 1239 3257 3257 28747 12654
25232 25232 6461 1239 3257 3257 28747 12654
3741 1273 701 1239 3257 3257 28747 12654
13237 1299 701 1239 3257 3257 28747 12654
12859 13237 1299 701 1239 3257 3257 28747 12654
1759 1299 701 1239 3257 3257 28747 12654
5417 2529 1299 701 1239 3257 3257 28747 12654
3741 701 1239 3257 3257 28747 12654
4608 1221 4637 701 1239 3257 3257 28747 12654
13237 5511 701 1239 3257 3257 28747 12654
12859 13237 5511 701 1239 3257 3257 28747 12654
3333 12859 13237 5511 701 1239 3257 3257 28747 12654
9177 6730 5511 701 1239 3257 3257 28747 12654
6762 701 1239 3257 3257 28747 12654
20854 6762 701 1239 3257 3257 28747 12654
13129 702 701 1239 3257 3257 28747 12654
15623 702 701 1239 3257 3257 28747 12654
5417 702 701 1239 3257 3257 28747 12654
4777 2516 7911 701 1239 3257 3257 28747 12654
7018 1239 3257 3257 28747 12654
4777 2516 7911 1239 3257 3257 28747 12654
20854 8928 1239 3257 3257 28747 12654
513 3320 3257 28747 12654
559 513 3320 3257 28747 12654
1103 20965 559 513 3320 3257 28747 12654
1853 20965 559 513 3320 3257 28747 12654
2603 20965 559 513 3320 3257 28747 12654
8289 3320 3257 28747 12654
9177 3320 3257 28747 12654
3333 3257 28747 12654
12859 3356 3257 28747 12654
3549 3257 28747 12654
8434 3549 3257 28747 12654
13237 3561 3257 28747 12654
3741 3257 28747 12654
4608 1221 4637 3257 28747 12654
5392 3257 28747 12654
12859 6461 3257 28747 12654
13237 6461 3257 28747 12654
25232 25232 6461 3257 28747 12654
6762 3257 28747 12654
20854 6762 3257 28747 12654
13129 702 3257 28747 12654
15623 702 3257 28747 12654
3741 702 3257 28747 12654
5417 702 3257 28747 12654
4777 2516 7911 3257 28747 12654
6320 8001 3257 28747 12654
15879 6320 8001 3257 28747 12654
8434 2119 8210 3257 28747 12654
2914 12654
297 2914 12654
3291 12654
2914 1239 3291 12654
3549 1239 3291 12654
7018 1239 3291 12654
12859 3291 12654
13237 3291 12654
15623 3291 12654
15879 3291 12654
12859 20847 3291 12654
286 3291 12654
5417 286 3291 12654
28747 3291 12654
15879 28747 3291 12654
9177 3320 3291 12654
3333 3291 12654
513 3291 12654
559 513 3291 12654
1103 20965 559 513 3291 12654
1853 20965 559 513 3291 12654
2603 20965 559 513 3291 12654
5417 3291 12654
5511 5511 3291 12654
513 5511 5511 3291 12654
559 513 5511 5511 3291 12654
1103 20965 559 513 5511 5511 3291 12654
1853 20965 559 513 5511 5511 3291 12654
2603 20965 559 513 5511 5511 3291 12654
6320 3291 12654
15879 6320 3291 12654
12859 6695 3291 12654
6762 3291 12654
20854 6762 3291 12654
8434 2119 8210 3291 12654
13030 9044 3291 12654
5417 12654
6320 12654
12859 6320 12654
9177 3320 6762 12654
7018 3561 6762 12654
4608 1221 4637 6762 12654
3549 6453 6762 12654
7018 12654
2914 7018 12654
297 7018 12654
12859 8251 12654
13030 8251 12654
13237 8251 12654
20854 8251 12654
3333 8251 12654
3356 8251 12654
5417 8251 12654
5400 8333 8333 8333 8333 8333 8333 12654
8447 12654
3356 8447 12654
12779 1239 3320
1759 1299 3320
2603 1299 3320
13129 3320
13237 3320
12859 13237 3320
28747 13237 3320
1853 3320
4777 2497 3320
286 3320
12859 286 3320
13030 286 3320
25232 286 3320
5417 286 3320
2914 3320
5392 3257 3320
3333 3320
1103 3356 3320
8251 3356 3320
3549 3320
1103 3549 3320
8434 3549 3320
4608 1221 4637 3320
513 3320
559 3320
25232 25232 6461 3320
6762 3320
20854 6762 3320
8251 6762 3320
7018 3320
3741 7018 3320
15623 8220 3320
8289 3320
9177 3320
3333
1103 3333
1853 20965 1103 3333
2603 20965 1103 3333
559 20965 1103 3333
513 559 20965 1103 3333
25232 1103 3333
3549 1103 3333
6320 1103 3333
12859 3333
13237 12859 3333
13030 13237 12859 3333
2914 174 13237 12859 3333
297 174 13237 12859 3333
3549 174 13237 12859 3333
8289 13237 12859 3333
8434 13237 12859 3333
20562 12859 3333
25232 12859 3333
286 12859 3333
1759 1299 3333
13129 3333
15623 3333
28747 15879 3333
20854 3333
25232 3333
5392 3257 3333
3291 3333
12779 1239 3291 3333
12793 3291 3333
5511 5511 3291 3333
6320 3291 3333
8251 3291 3333
9177 3320 3333
3356 3333
4777 2497 3356 3333
4608 1221 4637 3356 3333
7018 3356 3333
5417 3333
6762 3333
3741 702 3333
bottom bar Mail the Webmaster Mail the RIPE NCC
homepage ncc what's new whois DB Search the site site map FAQ

back to the top