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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 19 Feb, 2002

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

BGP routing table entries examined:                            108179
    Prefixes after maximum aggregation:                         71948
    Unique aggregates announced to Internet:                    52777
Total ASes present in the Internet Routing Table:               12570
Origin-only ASes present in the Internet Routing Table:         10877
Origin ASes announcing only one prefix:                          4757
Transit ASes present in the Internet Routing Table:              1693
Transit-only ASes present in the Internet Routing Table:           60
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    19
Illegal AS announcements present in the Routing Table:              2
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:                 1165609992
    Equivalent to 69 /8s, 121 /16s and 204 /24s
    Percentage of available address space announced:             31.4
    Percentage of allocated address space announced:             59.5
    Percentage of available address space allocated:             52.8
Total number of prefixes smaller than registry allocations:     72082

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

Prefixes being announced by APNIC Region ASes:                  17524
    Total APNIC prefixes after maximum aggregation:             10640
Prefixes being announced from the APNIC address blocks:         16032
    Unique aggregates announced from the APNIC address blocks:   9855
APNIC Region origin ASes present in the Internet Routing Table:  1450
APNIC Region origin ASes announcing only one prefix:              483
APNIC Region transit ASes present in the Internet Routing Table:  253
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:             79581248
    Equivalent to 4 /8s, 190 /16s and 80 /24s
    Percentage of available APNIC address space announced:       58.8

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:                   72722
    Total ARIN prefixes after maximum aggregation:              47302
Prefixes being announced from the ARIN address blocks:          51305
    Unique aggregates announced from the ARIN address blocks:   17284
ARIN Region origin ASes present in the Internet Routing Table:   7441
ARIN Region origin ASes announcing only one prefix:              2316
ARIN Region transit ASes present in the Internet Routing Table:   766
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             186614596
    Equivalent to 11 /8s, 31 /16s and 131 /24s
    Percentage of available ARIN address space announced:        69.5

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:                   17933
    Total RIPE prefixes after maximum aggregation:              14006
Prefixes being announced from the RIPE address blocks:          14759
    Unique aggregates announced from the RIPE address blocks:    9952
RIPE Region origin ASes present in the Internet Routing Table:   3618
RIPE Region origin ASes announcing only one prefix:              1958
RIPE Region transit ASes present in the Internet Routing Table:   657
Average RIPE Region AS path length visible:                       5.8
    Max RIPE Region AS path length visible:                        19
Number of RIPE addresses announced to Internet:             106732544
    Equivalent to 6 /8s, 92 /16s and 156 /24s
    Percentage of available RIPE address space announced:        70.7

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     1314       1258         958   Telstra Pty Ltd
 4538      453       1162          16   China Education and Research 
  703      399        358         309   UUNET Technologies, Inc. 
 2907      399       1942         366   SINET Japan
 2764      388        361         363   connect.com.au pty ltd
 7474      300        289         203   Optus Communications Pty Ltd
 4755      292        111          84   Videsh Sanchar Nigam Ltd. Aut
 4134      270       1874          98   Data Communications Bureau
 9394      242        112           3   CHINA RAILWAY Internet(CRNET)
17557      227         17          96   Pakistan Telecom
 4766      205       1393         145   Korea Internet Exchange for "
 7539      160        204         154   TANet2, sponsored by NSC, TAI
 9443      160         44          58   Primus Telecommunications
 9768      146        385          88   Korea Telecom
 4804      144         84          68   Microplex PTY LTD
 9583      138         32           5   Satyam Infoway Ltd.,
 7657      122         22          85   The Internet Group Limited
 4713      117        914         103   NTT Communications Corporatio
 4780      117        186          40   Digital United Inc.
17676      115       1840          17   XTAGE CORPORATION

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1066       2616         856   UUNET Technologies, Inc. 
 3301      398        924         351   TeliaNet Sweden
 1257      256        487         247   SWIPnet Swedish IP Network
 3215      239        570         155   France Telecom / &Equant
  680      232       2147         230   DFN-IP service G-WiN
 5515      216        705         173   Sonera Finland Autonomous Sys
 5400      197         82          93   Concert European Core Network
 3320      196       1964         172   Deutsche Telekom AG
  786      182       1874         182   The JANET IP Service
  719      167        305         121   LANLINK autonomous system
 8708      155         21         144   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
 8297      115         40          65   Teleglobe Autonomous System i
12302      114          7          35   MobiFon S.A.
  517      100        226          98   KPNQwest Germany GmbH
 2874       96        101          35   Global One Services AB
 5536       92         13          25   Internet Egypt Network
 1267       91       1471          41   Infostrada S.p.A.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     2088       8443        1497   UUNET Technologies, Inc. 
 7018     1228       7498         927   AT&T 
 3908      830       1677         480   Supernet, Inc. 
    1      824       8103         597   BBN Planet 
 1239      805       3340         621   Sprint 
 4323      648        433         243   Time Warner Communications, I
 7046      635        851         425   UUNET Technologies, Inc. 
  852      613       1125         409   Telus Advanced Communications
  209      533       1909         305   Qwest 
 7132      456        510         164   Southwestern Bell Internet Se
 2914      451       2192         419   Verio, Inc. 
 3549      443        822         230   Global Crossing 
  690      437         66         283   Merit Network 
  705      387        114         275   UUNET Technologies, Inc. 
 2149      378        209         316   Performance Systems, Inc. 
 7843      369        290          50   Adelphia Corp. 
 3561      359       2219         315   Cable & Wireless USA 
  577      352        588         218   Bell Advanced Communications 
 3741      343        730         234   The Internet Solution 
 2386      331        355         189   AT&T Data Communications Serv

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

  ASN   No of nets  Net Savings Description
 4538       453         437      China Education and Research 
 4323       648         405      Time Warner Communications, I
 1221      1314         356      Telstra Pty Ltd
 3908       830         350      Supernet, Inc. 
 7843       369         319      Adelphia Corp. 
 7018      1228         301      AT&T 
 7132       456         292      Southwestern Bell Internet Se
 4151       305         289      USDA 
11371       278         271      Rhythms NetConnections 
 9394       242         239      CHINA RAILWAY Internet(CRNET)
 6347       316         238      SAVVIS Communications Corpora
  209       533         228      Qwest 
    1       824         227      BBN Planet 
 3549       443         213      Global Crossing 
  702      1066         210      UUNET Technologies, Inc. 
 7046       635         210      UUNET Technologies, Inc. 
 4755       292         208      Videsh Sanchar Nigam Ltd. Aut
 4355       244         205      EarthLink, Inc. 
  852       613         204      Telus Advanced Communications
 1580       211         200      HQ, 5th Signal Command 

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.201.0/24      1880       Stupi, house man's p
 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 
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        /8:18       /9:6       /10:7       /11:12      /12:37      
/13:91      /14:232     /15:395     /16:7145    /17:1433    /18:2517    
/19:7383    /20:6749    /21:4804    /22:7269    /23:8918    /24:60227   
/25:217     /26:252     /27:121     /28:88      /29:88      /30:129     
/31:0       /32:41      

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

  ASN   No of nets  Total ann.   Description
  701     1336          2088      UUNET Technologies, Inc. 
 1221     1168          1314      Telstra Pty Ltd
  702      691          1066      UUNET Technologies, Inc. 
 7018      642          1228      AT&T 
 3908      584           830      Supernet, Inc. 
 4323      529           648      Time Warner Communications, I
 1239      473           805      Sprint 
 7046      452           635      UUNET Technologies, Inc. 
  690      433           437      Merit Network 
    1      424           824      BBN Planet 
  852      372           613      Telus Advanced Communications
  209      353           533      Qwest 
 2764      344           388      connect.com.au pty ltd
  705      334           387      UUNET Technologies, Inc. 
  703      322           399      UUNET Technologies, Inc. 
 3549      309           443      Global Crossing 
 2149      286           378      Performance Systems, Inc. 
 6197      275           328      BellSouth Network Solutions, 
 7066      275           304      Virginia Polytechnic Institut
11371      272           278      Rhythms NetConnections 

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

   4:1         9:1        12:483      13:10       15:1        17:5      
  20:5        24:771      25:1        32:68       38:9        40:6      
  44:1        57:14       61:227      62:169      63:1886     64:1115   
  65:1033     66:696      67:33       68:5        80:192      81:4      
 128:62      129:119     130:21      131:57      132:11      133:3      
 134:128     135:10      136:244     137:103     138:148     139:47     
 140:162     141:61      142:81      143:36      144:154     145:12     
 146:215     147:154     148:147     149:92      150:40      151:45     
 152:300     153:32      154:7       155:83      156:77      157:122    
 158:81      159:88      160:24      161:55      162:110     163:114    
 164:93      165:123     166:224     167:169     168:111     169:49     
 170:293     171:2       189:1       192:5430    193:2151    194:2011   
 195:789     196:444     198:3743    199:3235    200:2323    201:1      
 202:2992    203:4473    204:3306    205:2169    206:2525    207:2596   
 208:2570    209:2834    210:538     211:160     212:904     213:556    
 214:9       215:18      216:2957    217:437     218:10     

End of report
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