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[bgp-stats] Routing Table Report - Japan view



*  BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report   04:00 +10GMT Thu 27 Jun, 2002

Analysis Summary
----------------

BGP routing table entries examined:                            117340
    Prefixes after maximum aggregation:                         75728
    Unique aggregates announced to Internet:                    54568
Total ASes present in the Internet Routing Table:               13285
Origin-only ASes present in the Internet Routing Table:         11511
Origin ASes announcing only one prefix:                          5081
Transit ASes present in the Internet Routing Table:              1774
Transit-only ASes present in the Internet Routing Table:           48
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    16
Illegal AS announcements present in the Routing Table:             19
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    36
Number of addresses announced to Internet:                 1191507228
    Equivalent to 71 /8s, 4 /16s and 245 /24s
    Percentage of available address space announced:             32.1
    Percentage of allocated address space announced:             59.9
    Percentage of available address space allocated:             53.7
Total number of prefixes smaller than registry allocations:     49273

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                  18601
    Total APNIC prefixes after maximum aggregation:             11116
Prefixes being announced from the APNIC address blocks:         17064
    Unique aggregates announced from the APNIC address blocks:  10467
APNIC Region origin ASes present in the Internet Routing Table:  1547
APNIC Region origin ASes announcing only one prefix:              503
APNIC Region transit ASes present in the Internet Routing Table:  271
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       12
Number of APNIC addresses announced to Internet:             87541152
    Equivalent to 5 /8s, 55 /16s and 197 /24s
    Percentage of available APNIC address space announced:       64.7

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   61/8, 202/7, 210/7, 218/7 and 220/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                   79533
    Total ARIN prefixes after maximum aggregation:              50045
Prefixes being announced from the ARIN address blocks:          54902
    Unique aggregates announced from the ARIN address blocks:   17936
ARIN Region origin ASes present in the Internet Routing Table:   7824
ARIN Region origin ASes announcing only one prefix:              2496
ARIN Region transit ASes present in the Internet Routing Table:   769
Average ARIN Region AS path length visible:                       5.3
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             188812628
    Equivalent to 11 /8s, 65 /16s and 13 /24s
    Percentage of available ARIN address space announced:        70.3

ARIN AS Blocks         1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
                       2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
                       3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
                       7723 - 8191, 10240 - 12287, 13312 - 15359
                       16384 - 17407, 18432 - 20479, 21504 - 23551
                       25600 - 26623
ARIN Address Blocks    24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
                       208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                   19189
    Total RIPE prefixes after maximum aggregation:              14567
Prefixes being announced from the RIPE address blocks:          15920
    Unique aggregates announced from the RIPE address blocks:   10569
RIPE Region origin ASes present in the Internet Routing Table:   3868
RIPE Region origin ASes announcing only one prefix:              2082
RIPE Region transit ASes present in the Internet Routing Table:   716
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        16
Number of RIPE addresses announced to Internet:             111793440
    Equivalent to 6 /8s, 169 /16s and 213 /24s
    Percentage of available RIPE address space announced:        74.0

RIPE AS Blocks         1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
                       2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
                       6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
                       20480 - 21503, 24576 - 25599
RIPE Address Blocks    62/8, 80/7, 193/8, 194/7, 212/7 and 217/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1265       1223         907   Telstra Pty Ltd
 4538      439       1194          16   China Education and Research 
  703      403        359         321   UUNET Technologies, Inc. 
 2907      384       1876         358   SINET Japan
 2764      368        358         337   connect.com.au pty ltd
 7474      313        292         208   Optus Communications Pty Ltd
17557      302         20         114   Pakistan Telecom
 4755      294        117          83   Videsh Sanchar Nigam Ltd. Aut
 4134      289       2114         105   Data Communications Bureau
 9443      251         45          67   Primus Telecommunications
 4713      226       1009         106   NTT Communications Corporatio
 4766      216       1504         154   Korea Internet Exchange for "
 4814      202         79          14   China Telecom (Group) - Beiji
 9583      175         32           5   Satyam Infoway Ltd.,
17676      151       2338          22   XTAGE CORPORATION
 7539      149        202         144   TANet2, sponsored by NSC, TAI
 9768      145        386          74   Korea Telecom
 7657      139         22          88   The Internet Group Limited
 9800      125        191          18   CHINA UNICOM
 4780      115        186          39   Digital United Inc.

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1020       2615         843   UUNET Technologies, Inc. 
 3301      402        925         351   TeliaNet Sweden
 3352      277        535          26   Ibernet, Internet Access Netw
 3215      263        598         162   France Telecom / &Equant
 3320      242       1947         194   Deutsche Telekom AG
  680      233       2149         230   DFN-IP service G-WiN
 5515      206        783         172   Sonera Finland Autonomous Sys
 1257      204        430         201   SWIPnet Swedish IP Network
 5400      203         83          94   Concert European Core Network
  719      192        306         130   LANLINK autonomous system
  786      178       1873         177   The JANET IP Service
 8708      141         23         138   Romania Data Systems S.A.
 3303      135        546         134   Swisscom Ltd
12302      128         18          35   MobiFon S.A.
 2856      126        786         116   BTnet UK Regional network
 3246      110        301         105   Song Networks / Clinet
 3269      110        688          67   TELECOM ITALIA
 8297      108         52          60   Teleglobe Autonomous System i
 3233      102          6          56   RNC - Romanian Natioanal R&D 
 2874      101         85          39   Global One Services AB

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 2149     2866        349        2318   Performance Systems, Inc. 
  701     2009       9274        1399   UUNET Technologies, Inc. 
 7018     1298       7470         934   AT&T 
 3908      913       1642         495   Supernet, Inc. 
 1239      820       3360         645   Sprint 
  705      818        190         285   UUNET Technologies, Inc. 
    1      700       8131         451   GENUITY 
  852      682       1173         448   Telus Advanced Communications
 4323      632        438         259   Time Warner Communications, I
  209      610       1959         343   Qwest 
 7843      604        354         239   Adelphia Corp. 
 7046      594        860         381   UUNET Technologies, Inc. 
  174      587       4608          38   PSINet Inc. 
  690      587         81         373   Merit Network 
 7132      579        659         134   Southwestern Bell Internet Se
 7066      477        202         250   Virginia Polytechnic Institut
 3549      439        834         313   Global Crossing 
 2914      389       2100         382   Verio, Inc. 
15290      383        301         197   AT&T Canada IES 
 6197      347        248         169   BellSouth Network Solutions, 

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
  701      2009         610      UUNET Technologies, Inc. 
  174       587         549      PSINet Inc. 
  705       818         533      UUNET Technologies, Inc. 
 7132       579         445      Southwestern Bell Internet Se
 4538       439         423      China Education and Research 
 3908       913         418      Supernet, Inc. 
 4323       632         373      Time Warner Communications, I
 7843       604         365      Adelphia Corp. 
 7018      1298         364      AT&T 
 1221      1265         358      Telstra Pty Ltd
11371       292         286      Rhythms NetConnections 
 4151       289         273      USDA 
  209       610         267      Qwest 
 6347       341         262      SAVVIS Communications Corpora
 3352       277         251      Ibernet, Internet Access Netw
    1       700         249      GENUITY 
 4355       302         249      EarthLink, Inc. 
 7029       263         248      Alltel Information Services, 
  852       682         234      Telus Advanced Communications
 7066       477         227      Virginia Polytechnic Institut

List of Unregistered ASNs (Global)
----------------------------------

Bad AS  Designation  Network              Transit AS  Description
13136   UNALLOCATED   80.85.128.0/20       16243       Virtu Secure Webserv
55000   RESERVED      81.5.64.0/20          5467       MIPT-NET
65078   PRIVATE       143.233.54.0/24       5408       Greek Research and T
65066   PRIVATE       143.233.68.0/24       5408       Greek Research and T
65084   PRIVATE       143.233.127.0/24      5408       Greek Research and T
65068   PRIVATE       143.233.169.0/24      5408       Greek Research and T
65068   PRIVATE       143.233.172.0/22      5408       Greek Research and T
65068   PRIVATE       143.233.176.0/24      5408       Greek Research and T
65078   PRIVATE       143.233.182.0/23      5408       Greek Research and T
65078   PRIVATE       143.233.184.0/22      5408       Greek Research and T
65078   PRIVATE       143.233.188.0/23      5408       Greek Research and T
65078   PRIVATE       143.233.204.0/24      5408       Greek Research and T
65089   PRIVATE       193.218.96.0/23       5408       Greek Research and T
65058   PRIVATE       193.218.124.0/23      5408       Greek Research and T
65082   PRIVATE       194.177.192.0/24      5408       Greek Research and T
65074   PRIVATE       194.177.199.0/24      5408       Greek Research and T
65077   PRIVATE       194.177.200.0/21      5408       Greek Research and T
65067   PRIVATE       194.219.130.0/24      5408       Greek Research and T
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 

Advertised Unregistered Addresses
---------------------------------

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
134.137.0.0/16        7170     AT&T Government Markets 
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
138.94.0.0/16            1     GENUITY 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
192.5.154.0/24       16588     Spider Web Hosting Solutions 
192.26.98.0/24        1239     Sprint 
192.44.0.0/19          702     UUNET Technologies, Inc. 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.83.16.0/20        5515     Sonera Finland Autonomous Sys
192.83.32.0/19        5515     Sonera Finland Autonomous Sys
192.83.96.0/22        5515     Sonera Finland Autonomous Sys
192.83.100.0/24       5515     Sonera Finland Autonomous Sys
192.91.198.0/24       2568     CTS Network Services 
192.92.167.0/24        297     NASA Science Network 
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
192.135.248.0/23       109     Cisco Systems, Inc. 
192.136.79.0/24        719     LANLINK autonomous system
192.136.86.0/24        719     LANLINK autonomous system
192.136.87.0/24        719     LANLINK autonomous system
192.136.88.0/24        719     LANLINK autonomous system
192.139.62.0/24       6539     GT Group Telecom Services Cor
192.140.0.0/16        5511     France Telecom
192.152.213.0/24      1239     Sprint 
192.153.136.0/21       568     DISO-UNRRA 
192.156.0.0/19         568     DISO-UNRRA 
192.172.0.0/19         568     DISO-UNRRA 
192.195.253.0/24       237     Merit Network 
192.208.29.0/24       3908     Supernet, Inc. 
192.208.30.0/23       3908     Supernet, Inc. 
192.243.36.0/23       7168     Northwest Link 

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:6       /10:7       /11:12      /12:36      
/13:90      /14:235     /15:419     /16:7251    /17:1454    /18:2634    
/19:7687    /20:7313    /21:5132    /22:7889    /23:9636    /24:66832   
/25:194     /26:169     /27:83      /28:79      /29:47      /30:88      
/31:0       /32:28      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
 2149     2331          2866      Performance Systems, Inc. 
  702      628          1020      UUNET Technologies, Inc. 
  705      613           818      UUNET Technologies, Inc. 
  701      571          2009      UUNET Technologies, Inc. 
 3908      500           913      Supernet, Inc. 
  174      490           587      PSINet Inc. 
  690      465           587      Merit Network 
 7843      414           604      Adelphia Corp. 
 7066      382           477      Virginia Polytechnic Institut
 7018      353          1298      AT&T 
  209      275           610      Qwest 
 6197      249           347      BellSouth Network Solutions, 
 7029      248           263      Alltel Information Services, 
11371      245           292      Rhythms NetConnections 
 3301      238           402      TeliaNet Sweden
 7046      237           594      UUNET Technologies, Inc. 
 6198      235           322      BellSouth Network Solutions, 
18566      224           228      Covad Communications 
 6517      214           236      Yipes Communications, Inc. 
 1580      204           234      HQ, 5th Signal Command 

Number of /24s announced per /8 block (Global)
----------------------------------------------

   4:3         9:1        12:510      13:10       15:2        17:6      
  20:2        24:798      25:1        32:41       38:2663     40:6      
  44:1        57:13       61:268      62:216      63:1910     64:1247   
  65:1670     66:1001     67:88       68:191      80:256      81:29     
 128:60      129:133     130:22      131:48      132:11      133:3      
 134:121     135:8       136:245     137:92      138:149     139:70     
 140:170     141:120     142:83      143:34      144:153     145:14     
 146:180     147:138     148:219     149:91      150:40      151:66     
 152:264     153:33      154:19      155:108     156:77      157:127    
 158:70      159:128     160:18      161:69      162:215     163:101    
 164:280     165:132     166:225     167:172     168:131     169:60     
 170:358     171:3       192:5487    193:2355    194:2069    195:943    
 196:396     198:3683    199:3235    200:2557    202:3240    203:4672   
 204:3439    205:2201    206:2785    207:2661    208:2675    209:2673   
 210:583     211:226     212:899     213:649     214:9       215:19     
 216:2996    217:462     218:44      219:81     

End of report
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