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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 Tue 05 Mar, 2002

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

BGP routing table entries examined:                            109345
    Prefixes after maximum aggregation:                         72197
    Unique aggregates announced to Internet:                    51998
Total ASes present in the Internet Routing Table:               12663
Origin-only ASes present in the Internet Routing Table:         10973
Origin ASes announcing only one prefix:                          4794
Transit ASes present in the Internet Routing Table:              1690
Transit-only ASes present in the Internet Routing Table:           54
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:              8
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    15
Number of addresses announced to Internet:                 1166611112
    Equivalent to 69 /8s, 137 /16s and 18 /24s
    Percentage of available address space announced:             31.5
    Percentage of allocated address space announced:             59.6
    Percentage of available address space allocated:             52.8
Total number of prefixes smaller than registry allocations:     73233

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

Prefixes being announced by APNIC Region ASes:                  17853
    Total APNIC prefixes after maximum aggregation:             10677
Prefixes being announced from the APNIC address blocks:         16389
    Unique aggregates announced from the APNIC address blocks:   9977
APNIC Region origin ASes present in the Internet Routing Table:  1454
APNIC Region origin ASes announcing only one prefix:              476
APNIC Region transit ASes present in the Internet Routing Table:  248
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:             80444480
    Equivalent to 4 /8s, 203 /16s and 124 /24s
    Percentage of available APNIC address space announced:       59.5

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:                   73163
    Total ARIN prefixes after maximum aggregation:              47402
Prefixes being announced from the ARIN address blocks:          51641
    Unique aggregates announced from the ARIN address blocks:   16260
ARIN Region origin ASes present in the Internet Routing Table:   7502
ARIN Region origin ASes announcing only one prefix:              2349
ARIN Region transit ASes present in the Internet Routing Table:   761
Average ARIN Region AS path length visible:                       5.3
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             190101060
    Equivalent to 11 /8s, 84 /16s and 182 /24s
    Percentage of available ARIN address space announced:        70.8

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:                   18326
    Total RIPE prefixes after maximum aggregation:              14118
Prefixes being announced from the RIPE address blocks:          15071
    Unique aggregates announced from the RIPE address blocks:   10021
RIPE Region origin ASes present in the Internet Routing Table:   3652
RIPE Region origin ASes announcing only one prefix:              1969
RIPE Region transit ASes present in the Internet Routing Table:   668
Average RIPE Region AS path length visible:                       5.8
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             107098528
    Equivalent to 6 /8s, 98 /16s and 49 /24s
    Percentage of available RIPE address space announced:        70.9

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, 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     1302       1229         960   Telstra Pty Ltd
 4538      462       1162          16   China Education and Research 
 2907      407       1959         371   SINET Japan
  703      400        353         310   UUNET Technologies, Inc. 
 2764      384        360         360   connect.com.au pty ltd
 7474      299        289         203   Optus Communications Pty Ltd
 4755      293        109          85   Videsh Sanchar Nigam Ltd. Aut
 9443      271         44          62   Primus Telecommunications
 4134      270       1874          98   Data Communications Bureau
 9394      263        112           3   CHINA RAILWAY Internet(CRNET)
17557      232         15         101   Pakistan Telecom
 4766      211       1393         147   Korea Internet Exchange for "
 7539      161        220         156   TANet2, sponsored by NSC, TAI
 4804      148         84          68   Microplex PTY LTD
 9768      147        385          89   Korea Telecom
 9583      142         32           5   Satyam Infoway Ltd.,
 4713      127        914         104   NTT Communications Corporatio
 7657      122         22          85   The Internet Group Limited
 4780      119        186          40   Digital United Inc.
17676      116       1856          18   XTAGE CORPORATION

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1065       2637         854   UUNET Technologies, Inc. 
 3301      398        924         352   TeliaNet Sweden
 3215      250        570         156   France Telecom / &Equant
 1257      244        487         240   SWIPnet Swedish IP Network
  680      231       2147         230   DFN-IP service G-WiN
 5515      216        697         173   Sonera Finland Autonomous Sys
 5400      200         82          93   Concert European Core Network
 3320      195       1964         171   Deutsche Telekom AG
  786      181       1858         181   The JANET IP Service
  719      163        289         118   LANLINK autonomous system
 8708      162         22         148   Romania Data Systems S.A.
 2856      131        790         120   BTnet UK Regional network
 3303      123        577         123   Swisscom Ltd
 3269      117        693          71   TELECOM ITALIA
12302      117          7          38   MobiFon S.A.
 8297      115         37          65   Teleglobe Autonomous System i
 9051      101          6          25   INCONET Autonomous System
  517       99        226          97   KPNQwest Germany GmbH
 2874       95        100          35   Global One Services AB
 5511       90        192          78   France Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     2168       8550        1519   UUNET Technologies, Inc. 
 7018     1207       7477         909   AT&T 
 3908      854       1675         482   Supernet, Inc. 
    1      828       8121         603   BBN Planet 
 1239      788       3364         622   Sprint 
 4323      643        435         256   Time Warner Communications, I
 7046      624        835         409   UUNET Technologies, Inc. 
  852      604       1103         407   Telus Advanced Communications
  209      538       1974         312   Qwest 
 2914      477       2176         417   Verio, Inc. 
 3549      477        843         242   Global Crossing 
 7132      456        511         165   Southwestern Bell Internet Se
  690      439         67         285   Merit Network 
 7843      379        302          48   Adelphia Corp. 
  705      375        117         266   UUNET Technologies, Inc. 
 2149      368        192         306   Performance Systems, Inc. 
 3741      344        731         235   The Internet Solution 
 2386      337        356         192   AT&T Data Communications Serv
 6197      330        231         167   BellSouth Network Solutions, 
 3561      326       2171         293   Cable & Wireless USA 

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

  ASN   No of nets  Net Savings Description
 4538       462         446      China Education and Research 
 4323       643         387      Time Warner Communications, I
 3908       854         372      Supernet, Inc. 
 1221      1302         342      Telstra Pty Ltd
 7843       379         331      Adelphia Corp. 
 7018      1207         298      AT&T 
 7132       456         291      Southwestern Bell Internet Se
 4151       305         289      USDA 
 6198       307         275      BellSouth Network Solutions, 
11371       278         272      Rhythms NetConnections 
 9394       263         260      CHINA RAILWAY Internet(CRNET)
 6347       315         237      SAVVIS Communications Corpora
 3549       477         235      Global Crossing 
 7029       242         227      Alltel Information Services, 
  209       538         226      Qwest 
    1       828         225      BBN Planet 
 7046       624         215      UUNET Technologies, Inc. 
  702      1065         211      UUNET Technologies, Inc. 
 9443       271         209      Primus Telecommunications
 4755       293         208      Videsh Sanchar Nigam Ltd. Aut

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

Bad AS  Designation  Network              Transit AS  Description
23309   UNALLOCATED   169.199.0.0/16        2150       California State Uni
23309   UNALLOCATED   209.79.154.0/23       2150       California State Uni
23309   UNALLOCATED   209.79.156.0/23       2150       California State Uni
23309   UNALLOCATED   209.132.144.0/24      2150       California State Uni
23309   UNALLOCATED   209.232.36.0/22       2150       California State Uni
65534   PRIVATE       209.242.166.0/26       195       San Diego Supercompu
65534   PRIVATE       209.242.166.72/29      195       San Diego Supercompu
65534   PRIVATE       209.242.166.80/28      195       San Diego Supercompu

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
189.186.184.0/24      4471     Michigan Internet Cooperative
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        /8:19       /9:5       /10:8       /11:12      /12:34      
/13:88      /14:233     /15:406     /16:7172    /17:1382    /18:2532    
/19:7355    /20:6849    /21:4873    /22:7437    /23:9132    /24:60854   
/25:220     /26:258     /27:123     /28:90      /29:93      /30:129     
/31:0       /32:41      

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

  ASN   No of nets  Total ann.   Description
  701     1401          2168      UUNET Technologies, Inc. 
 1221     1158          1302      Telstra Pty Ltd
  702      688          1065      UUNET Technologies, Inc. 
 7018      628          1207      AT&T 
 3908      588           854      Supernet, Inc. 
 4323      514           643      Time Warner Communications, I
 1239      450           788      Sprint 
 7046      440           624      UUNET Technologies, Inc. 
  690      435           439      Merit Network 
    1      429           828      BBN Planet 
  852      363           604      Telus Advanced Communications
  209      355           538      Qwest 
 3549      341           477      Global Crossing 
 2764      340           384      connect.com.au pty ltd
  703      323           400      UUNET Technologies, Inc. 
  705      320           375      UUNET Technologies, Inc. 
 2149      278           368      Performance Systems, Inc. 
 6197      278           330      BellSouth Network Solutions, 
 7066      272           301      Virginia Polytechnic Institut
11371      272           278      Rhythms NetConnections 

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

   3:1         9:1        12:487      13:10       15:1        17:5      
  20:2        24:758      25:1        32:68       38:9        40:6      
  44:1        57:15       61:241      62:173      63:1877     64:1125   
  65:1052     66:768      67:50       68:7        80:212      81:5      
 128:63      129:123     130:24      131:56      132:11      133:3      
 134:126     135:10      136:249     137:102     138:143     139:48     
 140:182     141:62      142:82      143:37      144:143     145:13     
 146:217     147:162     148:149     149:91      150:41      151:48     
 152:346     153:31      154:8       155:89      156:74      157:118    
 158:79      159:116     160:23      161:55      162:140     163:118    
 164:91      165:119     166:222     167:186     168:120     169:49     
 170:290     171:2       189:1       192:5424    193:2198    194:2091   
 195:795     196:433     198:3698    199:3241    200:2369    201:1      
 202:3061    203:4535    204:3310    205:2183    206:2514    207:2632   
 208:2554    209:2787    210:545     211:195     212:887     213:601    
 214:9       215:18      216:2957    217:458     218:21     

End of report
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