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[bgp-stats] Routing Table Report - Japan view



*  BGP Statistics focusing on the Asia Pacific Region *
* To unsubscribe: send "unsubscribe" to bgp-stats-request@lists.apnic.net *

Routing Table Report   04:00 +10GMT Thu 28 Mar, 2002

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

BGP routing table entries examined:                            110493
    Prefixes after maximum aggregation:                         72201
    Unique aggregates announced to Internet:                    53479
Total ASes present in the Internet Routing Table:               12806
Origin-only ASes present in the Internet Routing Table:         11087
Origin ASes announcing only one prefix:                          4845
Transit ASes present in the Internet Routing Table:              1719
Transit-only ASes present in the Internet Routing Table:           53
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:             13
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    14
Number of addresses announced to Internet:                 1163050344
    Equivalent to 69 /8s, 82 /16s and 189 /24s
    Percentage of available address space announced:             31.4
    Percentage of allocated address space announced:             59.4
    Percentage of available address space allocated:             52.8
Total number of prefixes smaller than registry allocations:     74124

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

Prefixes being announced by APNIC Region ASes:                  18245
    Total APNIC prefixes after maximum aggregation:             10717
Prefixes being announced from the APNIC address blocks:         16729
    Unique aggregates announced from the APNIC address blocks:  10096
APNIC Region origin ASes present in the Internet Routing Table:  1468
APNIC Region origin ASes announcing only one prefix:              474
APNIC Region transit ASes present in the Internet Routing Table:  261
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:             82218048
    Equivalent to 4 /8s, 230 /16s and 140 /24s
    Percentage of available APNIC address space announced:       60.8

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:                   73746
    Total ARIN prefixes after maximum aggregation:              47286
Prefixes being announced from the ARIN address blocks:          52183
    Unique aggregates announced from the ARIN address blocks:   17445
ARIN Region origin ASes present in the Internet Routing Table:   7579
ARIN Region origin ASes announcing only one prefix:              2376
ARIN Region transit ASes present in the Internet Routing Table:   770
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             183907268
    Equivalent to 10 /8s, 246 /16s and 51 /24s
    Percentage of available ARIN address space announced:        68.5

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
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:                   18498
    Total RIPE prefixes after maximum aggregation:              14198
Prefixes being announced from the RIPE address blocks:          15214
    Unique aggregates announced from the RIPE address blocks:   10106
RIPE Region origin ASes present in the Internet Routing Table:   3705
RIPE Region origin ASes announcing only one prefix:              1995
RIPE Region transit ASes present in the Internet Routing Table:   674
Average RIPE Region AS path length visible:                       5.8
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             108228640
    Equivalent to 6 /8s, 115 /16s and 112 /24s
    Percentage of available RIPE address space announced:        71.7

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     1285       1211         945   Telstra Pty Ltd
 4538      463       1194          17   China Education and Research 
 2907      437       1879         371   SINET Japan
  703      414        336         322   UUNET Technologies, Inc. 
 2764      384        361         359   connect.com.au pty ltd
 9394      321        113           4   CHINA RAILWAY Internet(CRNET)
 7474      309        290         210   Optus Communications Pty Ltd
 4755      286        111          82   Videsh Sanchar Nigam Ltd. Aut
 9443      276         44          64   Primus Telecommunications
 4134      273       1978          95   Data Communications Bureau
17557      254         16          95   Pakistan Telecom
 4766      209       1516         147   Korea Internet Exchange for "
 7539      165        239         159   TANet2, sponsored by NSC, TAI
 4804      164         84          67   Microplex PTY LTD
 9583      149         32           5   Satyam Infoway Ltd.,
 9768      139        385          82   Korea Telecom
 7657      122         22          85   The Internet Group Limited
 4713      120        891         104   NTT Communications Corporatio
17676      119       1904          12   XTAGE CORPORATION
 4780      118        186          40   Digital United Inc.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1032       2597         847   UUNET Technologies, Inc. 
 3301      390        923         345   TeliaNet Sweden
 3215      265        581         173   France Telecom / &Equant
 5515      264        696         169   Sonera Finland Autonomous Sys
  680      232       2149         231   DFN-IP service G-WiN
 1257      228        486         224   SWIPnet Swedish IP Network
 3320      224       1964         172   Deutsche Telekom AG
 5400      199         84          94   Concert European Core Network
  786      182       1874         182   The JANET IP Service
  719      163        289         118   LANLINK autonomous system
 8708      161         23         149   Romania Data Systems S.A.
 2856      129        788         118   BTnet UK Regional network
12302      125          8          46   MobiFon S.A.
 3303      124        565         123   Swisscom Ltd
 3269      117        694          71   TELECOM ITALIA
 8297      117         53          67   Teleglobe Autonomous System i
  517      103        226          99   KPNQwest Germany GmbH
 5511      103        194          91   France Telecom
 9051      101          6          25   INCONET Autonomous System
 2874       96         84          36   Global One Services AB

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     2075       8460        1442   UUNET Technologies, Inc. 
 7018     1231       7512         915   AT&T 
 3908      848       1675         478   Supernet, Inc. 
 1239      817       3371         642   Sprint 
    1      811       8122         607   BBN Planet 
 4323      630        436         253   Time Warner Communications, I
  852      628       1112         415   Telus Advanced Communications
 7046      590        836         370   UUNET Technologies, Inc. 
  209      552       1992         319   Qwest 
 7132      522        552         161   Southwestern Bell Internet Se
 3549      511        861         263   Global Crossing 
  690      420         64         279   Merit Network 
 2914      413       2170         410   Verio, Inc. 
 7843      400        314          48   Adelphia Corp. 
  705      380        116         272   UUNET Technologies, Inc. 
 2149      368        208         306   Performance Systems, Inc. 
 3741      344        731         234   The Internet Solution 
 6197      332        217         173   BellSouth Network Solutions, 
 7066      325        203         251   Virginia Polytechnic Institut
 3561      319       2151         285   Cable & Wireless USA 

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

  ASN   No of nets  Net Savings Description
 4538       463         446      China Education and Research 
 4323       630         377      Time Warner Communications, I
 3908       848         370      Supernet, Inc. 
 7132       522         361      Southwestern Bell Internet Se
 7843       400         352      Adelphia Corp. 
 1221      1285         340      Telstra Pty Ltd
 9394       321         317      CHINA RAILWAY Internet(CRNET)
 7018      1231         316      AT&T 
 4151       306         290      USDA 
 6198       310         279      BellSouth Network Solutions, 
 4565       311         277      Epoch Networks 
11371       277         271      Rhythms NetConnections 
 3549       511         248      Global Crossing 
 6347       317         238      SAVVIS Communications Corpora
  209       552         233      Qwest 
 7029       247         232      Alltel Information Services, 
 7046       590         220      UUNET Technologies, Inc. 
  852       628         213      Telus Advanced Communications
 9443       276         212      Primus Telecommunications
 4355       244         208      EarthLink, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
23279   UNALLOCATED   63.238.4.0/24          209       Qwest 
23279   UNALLOCATED   65.218.242.0/24        209       Qwest 
23279   UNALLOCATED   65.218.243.0/24        209       Qwest 
23279   UNALLOCATED   65.218.244.0/24        209       Qwest 
23279   UNALLOCATED   65.218.245.0/24        209       Qwest 
  112   UNALLOCATED   192.175.48.0/24       3557       Vixie Enterprises 
65535   PRIVATE       198.93.230.0/24       3550       Ateneo de Manila Uni
65535   PRIVATE       198.93.231.0/24       3550       Ateneo de Manila Uni
65535   PRIVATE       198.94.168.0/24       3550       Ateneo de Manila Uni
65535   PRIVATE       198.94.169.0/24       3550       Ateneo de Manila Uni
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
23279   UNALLOCATED   216.207.52.0/24        209       Qwest 
23279   UNALLOCATED   216.207.53.0/24        209       Qwest 

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
96.0.0.0/20           3549     Global Crossing 
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     BBN Planet 
144.7.0.0/16           701     UUNET Technologies, Inc. 
153.36.0.0/14          701     UUNET Technologies, Inc. 
154.150.0.0/16        6494     IDCI 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
164.235.0.0/16        6025     US DOD NIC Unregistered
201.115.100.0/24      7018     AT&T 

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:18       /9:5       /10:8       /11:14      /12:35      
/13:88      /14:231     /15:403     /16:7189    /17:1388    /18:2569    
/19:7430    /20:6939    /21:4948    /22:7556    /23:9133    /24:61554   
/25:224     /26:259     /27:117     /28:101     /29:104     /30:136     
/31:0       /32:44      

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

  ASN   No of nets  Total ann.   Description
  701     1343          2075      UUNET Technologies, Inc. 
 1221     1143          1285      Telstra Pty Ltd
  702      657          1032      UUNET Technologies, Inc. 
 7018      646          1231      AT&T 
 3908      580           848      Supernet, Inc. 
 4323      499           630      Time Warner Communications, I
 1239      472           817      Sprint 
  690      415           420      Merit Network 
    1      404           811      BBN Planet 
 7046      402           590      UUNET Technologies, Inc. 
  852      381           628      Telus Advanced Communications
 3549      370           511      Global Crossing 
  209      361           552      Qwest 
 2764      340           384      connect.com.au pty ltd
  703      334           414      UUNET Technologies, Inc. 
  705      327           380      UUNET Technologies, Inc. 
 9394      307           321      CHINA RAILWAY Internet(CRNET)
 7066      296           325      Virginia Polytechnic Institut
 4565      286           311      Epoch Networks 
 2149      283           368      Performance Systems, Inc. 

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

   3:1         4:7         9:1        12:484      13:10       15:2      
  17:6        20:2        24:732      25:1        32:68       38:8      
  40:6        44:1        57:14       61:309      62:156      63:1899   
  64:1186     65:1107     66:823      67:55       68:3        80:224    
  81:8       128:64      129:128     130:23      131:57      132:11     
 133:3       134:127     135:10      136:313     137:99      138:141    
 139:50      140:187     141:90      142:84      143:38      144:141    
 145:11      146:220     147:146     148:137     149:91      150:40     
 151:46      152:306     153:33      154:4       155:108     156:76     
 157:119     158:72      159:125     160:27      161:55      162:141    
 163:105     164:123     165:123     166:220     167:195     168:100    
 169:52      170:288     171:2       192:5435    193:2252    194:2095   
 195:795     196:429     198:3726    199:3199    200:2434    201:1      
 202:3113    203:4579    204:3259    205:2162    206:2560    207:2668   
 208:2565    209:2767    210:589     211:204     212:881     213:598    
 214:9       215:19      216:3093    217:464     218:14     

End of report
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