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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   00:00 16 Nov, 2001

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

BGP routing table entries examined:                            108661
Total ASes present in the Internet Routing Table:               12079
Origin-only ASes present in the Internet Routing Table:         10491
Origin ASes announcing only one prefix:                          4492
Transit ASes present in the Internet Routing Table:              1588
Transit-only ASes present in the Internet Routing Table:           52
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    16
Illegal AS announcements present in the Routing Table:             77
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:                 1259530610
    Equivalent to 75 /8s, 18 /16s and 233 /24s
    Percentage of available address space announced:             34.0
    Percentage of allocated address space announced:             64.9
    Percentage of available address space allocated:             52.4
Total number of prefixes smaller than registry allocations:     73817

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

Prefixes being announced by APNIC Region ASes:                  16942
Prefixes being announced from the APNIC address blocks:         15419
APNIC Region origin ASes present in the Internet Routing Table:  1404
APNIC Region origin ASes announcing only one prefix:              458
APNIC Region transit ASes present in the Internet Routing Table:  238
Average APNIC Region AS path length visible:                      5.2
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:             88700314
    Equivalent to 5 /8s, 73 /16s and 117 /24s
    Percentage of available APNIC address space announced:       74.9

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

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

Prefixes being announced by ARIN Region ASes:                   73893
Prefixes being announced from the ARIN address blocks:          52694
ARIN Region origin ASes present in the Internet Routing Table:   7178
ARIN Region origin ASes announcing only one prefix:              2193
ARIN Region transit ASes present in the Internet Routing Table:   732
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             221041370
    Equivalent to 13 /8s, 44 /16s and 210 /24s
    Percentage of available ARIN address space announced:        82.3

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
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:                   17825
Prefixes being announced from the RIPE address blocks:          14462
RIPE Region origin ASes present in the Internet Routing Table:   3450
RIPE Region origin ASes announcing only one prefix:              1841
RIPE Region transit ASes present in the Internet Routing Table:   607
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        15
Number of RIPE addresses announced to Internet:             110046988
    Equivalent to 6 /8s, 143 /16s and 47 /24s
    Percentage of available RIPE address space announced:        72.9

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
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  Description
 1221     1540       1303       Telstra Pty Ltd
 2764      404        357       connect.com.au pty ltd
  703      397        360       UUNET Technologies, Inc. 
 2907      372       1848       SINET Japan
 4755      362        171       Videsh Sanchar Nigam Ltd. Aut
 7474      299        275       Optus Communications Pty Ltd
 4134      255       1924       Data Communications Bureau
 4766      184       1431       Korea Internet Exchange for "
 4740      169         24       OzEmail ISP
17676      168       1957       XTAGE CORPORATION
 9443      166         53       Primus Telecommunications
 1659      165       1157       Taiwan Academic Network (TANe
17557      150         12       Pakistan Telecom
 7539      147        145       TANet2, sponsored by NSC, TAI
 9583      139         47       Satyam Infoway Ltd.,
 4812      137        305       China Telecom (Group) - Shang
 2521      136        171       PSINet Japan
 4786      131         15       NetConnect Communications Pty
 9768      128        362       Korea Telecom
 7657      121         23       The Internet Group Limited

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

  ASN   No of nets  /20 equiv  Description
  702     1083       2148       UUNET Technologies, Inc. 
 3301      432        949       TeliaNet Sweden
 1257      268        500       SWIPnet Swedish IP Network
 3215      234        568       France Telecom / &Equant
  680      231       2148       DFN-IP service G-WiN
 5515      197        688       Sonera Finland Autonomous Sys
 3320      195       1957       Deutsche Telekom AG
  786      184       1890       The JANET IP Service
 8708      168         17       Romania Data Systems S.A.
 5400      138         64       Concert European Core Network
  719      133        289       LANLINK autonomous system
 2856      133        777       BTnet UK Regional network
 3303      131        560       Swisscom Ltd
 5549      121         82       Nextra Deutschland GmbH + Co.
  517      112        248       KPNQwest Germany GmbH
 1273      108        167       Cable & Wireless ECRC GmbH
12302      108          7       MobiFon S.A.
 3269      105        808       TELECOM ITALIA
 1290       99        398       PSINet UK Ltd.
 8297       99         31       Teleglobe Autonomous System i

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

  ASN   No of nets  /20 equiv  Description
  701     2245       9164       UUNET Technologies, Inc. 
 7018     1089       7318       AT&T 
 3967     1056        483       Exodus Communication 
    1      838       8536       BBN Planet 
 7046      824        973       UUNET Technologies, Inc. 
 8010      718         98       PublicNet Communications, Inc
 1239      716       3352       Sprint 
 3908      679       1516       Supernet, Inc. 
  209      576       2213       Qwest 
  852      542        707       Telus Advanced Communications
 4323      505        411       Time Warner Communications, I
  690      497         71       Merit Network 
 2149      480        333       Performance Systems, Inc. 
 2914      471       2269       Verio, Inc. 
 4293      447        113       Cable & Wireless USA 
  705      427        249       UUNET Technologies, Inc. 
 3549      393        888       Global Crossing 
 3561      379       2303       Cable & Wireless USA 
 4151      366       1254       USDA 
 3741      348        765       The Internet Solution 

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  Description
  701     2245       9164       UUNET Technologies, Inc. 
 1221     1540       1303       Telstra Pty Ltd
 7018     1089       7318       AT&T 
  702     1083       2148       UUNET Technologies, Inc. 
 3967     1056        483       Exodus Communication 
    1      838       8536       BBN Planet 
 7046      824        973       UUNET Technologies, Inc. 
 8010      718         98       PublicNet Communications, Inc
 1239      716       3352       Sprint 
 3908      679       1516       Supernet, Inc. 
  209      576       2213       Qwest 
  852      542        707       Telus Advanced Communications
 4323      505        411       Time Warner Communications, I
  690      497         71       Merit Network 
 2149      480        333       Performance Systems, Inc. 
 2914      471       2269       Verio, Inc. 
 4293      447        113       Cable & Wireless USA 
 3301      432        949       TeliaNet Sweden
  705      427        249       UUNET Technologies, Inc. 
 2764      404        357       connect.com.au pty ltd

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

Bad AS  Designation  Network              Transit AS  Description
 8972   UNALLOCATED   62.75.128.0/17        5669       VIA NET.WORKS Inc
 6971   UNALLOCATED   64.42.0.0/20          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.0.0/18          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.16.0/20         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.32.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.40.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.48.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.56.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.60.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.64.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.72.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.76.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.80.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.88.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.96.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.104.0/21        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.108.0/22        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.112.0/20        2914       Verio, Inc. 
 6971   UNALLOCATED   64.87.64.0/19         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   66.182.0.0/18         2516       Kokusai Denshin Denw
 2027   UNALLOCATED   150.185.128.0/18      8143       Publicom Corp. 
 6971   UNALLOCATED   192.103.229.0/24      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.230.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.232.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.236.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.237.0/24      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   199.164.144.0/24      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   199.249.223.0/24      2516       Kokusai Denshin Denw
 9541   UNALLOCATED   202.163.64.0/18       8961       Emirates Internet Ex
 9541   UNALLOCATED   202.163.120.0/21      8961       Emirates Internet Ex
65000   PRIVATE       203.21.200.0/24       1221       Telstra Pty Ltd
 6971   UNALLOCATED   204.69.206.0/24       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   205.163.58.0/24       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   206.58.248.0/22       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   206.58.248.0/21       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   207.12.40.0/22        2516       Kokusai Denshin Denw
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
 6971   UNALLOCATED   208.1.124.0/23        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   208.1.200.0/21        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.105.192.0/20      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.121.224.0/19      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.173.192.0/19      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.192.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.192.0/18       701       UUNET Technologies, 
 6971   UNALLOCATED   216.174.196.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.200.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.202.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.204.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.208.0/20      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.224.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.232.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.240.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.244.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.248.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.252.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/18      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/17      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.136.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.140.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.160.0/21      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.168.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.176.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.184.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.188.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.192.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.200.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.204.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.208.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.216.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.220.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.224.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.232.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.236.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.240.0/20      2914       Verio, Inc. 
 6971   UNALLOCATED   216.229.96.0/20       2516       Kokusai Denshin Denw
 8972   UNALLOCATED   217.172.160.0/19      5669       VIA NET.WORKS Inc

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         400     Headquarters Standard Systems
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. 
153.34.0.0/15          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       /10:7       /11:12      /12:37      
/13:89      /14:220     /15:385     /16:7072    /17:1356    /18:2419    
/19:7055    /20:6032    /21:4753    /22:7126    /23:8935    /24:61547   
/25:332     /26:322     /27:273     /28:252     /29:158     /30:182     
/31:0       /32:74      

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

  ASN   No of nets  Total ann.   Description
  701     1436          2245      UUNET Technologies, Inc. 
 1221     1398          1540      Telstra Pty Ltd
 3967      873          1056      Exodus Communication 
  702      737          1083      UUNET Technologies, Inc. 
 8010      703           718      PublicNet Communications, Inc
 7046      656           824      UUNET Technologies, Inc. 
 7018      562          1089      AT&T 
  690      494           497      Merit Network 
 3908      457           679      Supernet, Inc. 
 4323      438           505      Time Warner Communications, I
 4293      432           447      Cable & Wireless USA 
  209      404           576      Qwest 
    1      403           838      BBN Planet 
 1239      403           716      Sprint 
 2764      361           404      connect.com.au pty ltd
 2149      356           480      Performance Systems, Inc. 
  852      355           542      Telus Advanced Communications
  705      337           427      UUNET Technologies, Inc. 
  703      326           397      UUNET Technologies, Inc. 
 4151      321           366      USDA 

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

   4:5         9:1        12:424      13:10       15:1        17:5      
  20:1        24:845      25:1        26:1        32:74       38:13     
  43:2        44:2        47:2        52:1        53:9        57:12     
  61:124      62:155      63:1905     64:1500     65:915      66:715    
  67:5        80:105     128:61      129:109     130:23      131:42     
 132:13      133:2       134:133     135:8       136:119     137:99     
 138:197     139:47      140:173     141:58      142:66      143:42     
 144:148     145:11      146:203     147:133     148:182     149:85     
 150:43      151:191     152:383     153:71      154:8       155:84     
 156:92      157:107     158:69      159:70      160:46      161:55     
 162:77      163:129     164:128     165:121     166:206     167:161    
 168:118     169:46      170:296     171:2       192:5375    193:2039   
 194:2056    195:860     196:459     198:3744    199:3438    200:2384   
 201:1       202:2835    203:4590    204:3355    205:2144    206:2772   
 207:2637    208:2976    209:2962    210:547     211:149     212:951    
 213:533     214:9       215:16      216:2990    217:429     218:6      


End of report
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