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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 Fri 22 Feb, 2002

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

BGP routing table entries examined:                            108307
    Prefixes after maximum aggregation:                         71880
    Unique aggregates announced to Internet:                    50367
Total ASes present in the Internet Routing Table:               12584
Origin-only ASes present in the Internet Routing Table:         10891
Origin ASes announcing only one prefix:                          4779
Transit ASes present in the Internet Routing Table:              1693
Transit-only ASes present in the Internet Routing Table:           59
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:              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:                 1177053064
    Equivalent to 70 /8s, 40 /16s and 103 /24s
    Percentage of available address space announced:             31.8
    Percentage of allocated address space announced:             60.1
    Percentage of available address space allocated:             52.8
Total number of prefixes smaller than registry allocations:     72196

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

Prefixes being announced by APNIC Region ASes:                  17303
    Total APNIC prefixes after maximum aggregation:             10549
Prefixes being announced from the APNIC address blocks:         15848
    Unique aggregates announced from the APNIC address blocks:   8410
APNIC Region origin ASes present in the Internet Routing Table:  1442
APNIC Region origin ASes announcing only one prefix:              494
APNIC Region transit ASes present in the Internet Routing Table:  252
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:             82790656
    Equivalent to 4 /8s, 239 /16s and 73 /24s
    Percentage of available APNIC address space announced:       61.2

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:                   72903
    Total ARIN prefixes after maximum aggregation:              47290
Prefixes being announced from the ARIN address blocks:          51401
    Unique aggregates announced from the ARIN address blocks:   16306
ARIN Region origin ASes present in the Internet Routing Table:   7449
ARIN Region origin ASes announcing only one prefix:              2321
ARIN Region transit ASes present in the Internet Routing Table:   765
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             194804868
    Equivalent to 11 /8s, 156 /16s and 124 /24s
    Percentage of available ARIN address space announced:        72.6

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:                   18101
    Total RIPE prefixes after maximum aggregation:              14041
Prefixes being announced from the RIPE address blocks:          14860
    Unique aggregates announced from the RIPE address blocks:    9992
RIPE Region origin ASes present in the Internet Routing Table:   3633
RIPE Region origin ASes announcing only one prefix:              1964
RIPE Region transit ASes present in the Internet Routing Table:   661
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        15
Number of RIPE addresses announced to Internet:             106888832
    Equivalent to 6 /8s, 94 /16s and 254 /24s
    Percentage of available RIPE address space announced:        70.8

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     1307       1257         955   Telstra Pty Ltd
 4538      454       1162          16   China Education and Research 
  703      401        359         310   UUNET Technologies, Inc. 
 2907      400       1942         366   SINET Japan
 2764      388        361         363   connect.com.au pty ltd
 7474      300        289         204   Optus Communications Pty Ltd
 4755      291        111          88   Videsh Sanchar Nigam Ltd. Aut
 4134      270       1874          98   Data Communications Bureau
 9394      253        112           3   CHINA RAILWAY Internet(CRNET)
17557      224         17          92   Pakistan Telecom
 4766      213       1392         151   Korea Internet Exchange for "
 7539      161        204         155   TANet2, sponsored by NSC, TAI
 9443      159         44          58   Primus Telecommunications
 9768      146        385          88   Korea Telecom
 4804      144         84          68   Microplex PTY LTD
 9583      140         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     1062       2615         855   UUNET Technologies, Inc. 
 3301      397        924         351   TeliaNet Sweden
 1257      247        487         243   SWIPnet Swedish IP Network
 3215      238        570         155   France Telecom / &Equant
  680      232       2147         230   DFN-IP service G-WiN
 5515      217        713         174   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      159         22         146   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      116         40          65   Teleglobe Autonomous System i
12302      114          7          35   MobiFon S.A.
  517      100        226          98   KPNQwest Germany GmbH
 5536       97         13          25   Internet Egypt Network
 2874       95        100          35   Global One Services AB
 2830       92        210          73   UUNET Dual-Homed customers

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     2108       8444        1504   UUNET Technologies, Inc. 
 7018     1238       7511         933   AT&T 
 3908      829       1661         480   Supernet, Inc. 
    1      818       8102         594   BBN Planet 
 1239      805       3348         621   Sprint 
 4323      662        433         243   Time Warner Communications, I
 7046      623        850         421   UUNET Technologies, Inc. 
  852      613       1125         409   Telus Advanced Communications
  209      539       1974         310   Qwest 
 7132      455        510         164   Southwestern Bell Internet Se
 2914      454       2193         422   Verio, Inc. 
 3549      449        823         232   Global Crossing 
  690      437         66         283   Merit Network 
  705      379        114         269   UUNET Technologies, Inc. 
 7843      378        298          47   Adelphia Corp. 
 2149      373        209         311   Performance Systems, Inc. 
  577      353        588         221   Bell Advanced Communications 
 3561      349       2204         309   Cable & Wireless USA 
 3741      343        730         234   The Internet Solution 
 2386      332        354         189   AT&T Data Communications Serv

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

  ASN   No of nets  Net Savings Description
 4538       454         438      China Education and Research 
 4323       662         419      Time Warner Communications, I
 1221      1307         352      Telstra Pty Ltd
 3908       829         349      Supernet, Inc. 
 7843       378         331      Adelphia Corp. 
 7018      1238         305      AT&T 
 7132       455         291      Southwestern Bell Internet Se
 4151       305         289      USDA 
 6198       307         274      BellSouth Network Solutions, 
11371       278         271      Rhythms NetConnections 
 9394       253         250      CHINA RAILWAY Internet(CRNET)
 6347       316         238      SAVVIS Communications Corpora
  209       539         229      Qwest 
 7029       244         229      Alltel Information Services, 
    1       818         224      BBN Planet 
 3549       449         217      Global Crossing 
  702      1062         207      UUNET Technologies, Inc. 
  852       613         204      Telus Advanced Communications
 4355       243         204      EarthLink, Inc. 
 4755       291         203      Videsh Sanchar Nigam Ltd. Aut

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        /8:21       /9:6       /10:8       /11:12      /12:37      
/13:90      /14:233     /15:396     /16:7149    /17:1434    /18:2525    
/19:7358    /20:6758    /21:4797    /22:7275    /23:8884    /24:60383   
/25:218     /26:256     /27:120     /28:87      /29:91      /30:130     
/31:0       /32:39      

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

  ASN   No of nets  Total ann.   Description
  701     1354          2108      UUNET Technologies, Inc. 
 1221     1162          1307      Telstra Pty Ltd
  702      687          1062      UUNET Technologies, Inc. 
 7018      654          1238      AT&T 
 3908      584           829      Supernet, Inc. 
 4323      542           662      Time Warner Communications, I
 1239      472           805      Sprint 
 7046      440           623      UUNET Technologies, Inc. 
  690      433           437      Merit Network 
    1      421           818      BBN Planet 
  852      372           613      Telus Advanced Communications
  209      357           539      Qwest 
 2764      344           388      connect.com.au pty ltd
  705      325           379      UUNET Technologies, Inc. 
  703      324           401      UUNET Technologies, Inc. 
 3549      315           449      Global Crossing 
 2149      282           373      Performance Systems, Inc. 
 7066      276           305      Virginia Polytechnic Institut
 6197      275           326      BellSouth Network Solutions, 
11371      272           278      Rhythms NetConnections 

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

   3:1         9:1        12:483      13:10       15:1        17:5      
  20:2        24:778      25:1        32:68       38:9        40:6      
  44:1        57:14       61:232      62:171      63:1886     64:1116   
  65:1033     66:702      67:34       68:7        80:204      81:4      
 128:62      129:123     130:21      131:57      132:11      133:3      
 134:128     135:10      136:247     137:101     138:148     139:47     
 140:183     141:62      142:88      143:37      144:152     145:12     
 146:216     147:155     148:146     149:92      150:39      151:45     
 152:353     153:32      154:7       155:85      156:75      157:121    
 158:78      159:88      160:23      161:55      162:139     163:114    
 164:71      165:120     166:225     167:182     168:119     169:51     
 170:293     171:2       189:1       192:5439    193:2159    194:2050   
 195:790     196:443     198:3742    199:3240    200:2321    201:1      
 202:2892    203:4470    204:3326    205:2176    206:2524    207:2616   
 208:2570    209:2835    210:525     211:168     212:893     213:565    
 214:9       215:18      216:2960    217:453     218:10     

End of report
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