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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Tue 14 Jan, 2003

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

BGP routing table entries examined:                            119554
    Prefixes after maximum aggregation:                         76389
    Unique aggregates announced to Internet:                    57352
Total ASes present in the Internet Routing Table:               14386
Origin-only ASes present in the Internet Routing Table:         12495
Origin ASes announcing only one prefix:                          5641
Transit ASes present in the Internet Routing Table:              1891
Transit-only ASes present in the Internet Routing Table:           60
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:              5
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    30
Number of addresses announced to Internet:                 1189758745
    Equivalent to 70 /8s, 234 /16s and 71 /24s
    Percentage of available address space announced:             32.1
    Percentage of allocated address space announced:             58.8
    Percentage of available address space allocated:             54.6
Total number of prefixes smaller than registry allocations:     55610

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

Prefixes being announced by APNIC Region ASes:                  19900
    Total APNIC prefixes after maximum aggregation:             11894
Prefixes being announced from the APNIC address blocks:         18387
    Unique aggregates announced from the APNIC address blocks:  11378
APNIC Region origin ASes present in the Internet Routing Table:  1706
APNIC Region origin ASes announcing only one prefix:              520
APNIC Region transit ASes present in the Internet Routing Table:  288
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       12
Number of APNIC addresses announced to Internet:            103716000
    Equivalent to 6 /8s, 46 /16s and 148 /24s
    Percentage of available APNIC address space announced:       68.2

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 220/7

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

Prefixes being announced by ARIN Region ASes:                   73991
    Total ARIN prefixes after maximum aggregation:              47045
Prefixes being announced from the ARIN address blocks:          51764
    Unique aggregates announced from the ARIN address blocks:   15985
ARIN Region origin ASes present in the Internet Routing Table:   8047
ARIN Region origin ASes announcing only one prefix:              2728
ARIN Region transit ASes present in the Internet Routing Table:   756
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             185424624
    Equivalent to 11 /8s, 13 /16s and 90 /24s
    Percentage of available ARIN address space announced:        69.1

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
                       25600 - 26591, 26624 - 27647
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
                       and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                   20535
    Total RIPE prefixes after maximum aggregation:              15258
Prefixes being announced from the RIPE address blocks:          17121
    Unique aggregates announced from the RIPE address blocks:   11383
RIPE Region origin ASes present in the Internet Routing Table:   4251
RIPE Region origin ASes announcing only one prefix:              2313
RIPE Region transit ASes present in the Internet Routing Table:   770
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        15
Number of RIPE addresses announced to Internet:             122135168
    Equivalent to 7 /8s, 71 /16s and 162 /24s
    Percentage of available RIPE address space announced:        80.9

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, 28672 - 29695
RIPE Address Blocks    62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                  5125
    Total LACNIC prefixes after maximum aggregation:             2192
Prefixes being announced from the LACNIC address blocks:         4471
    Unique aggregates announced from the LACNIC address blocks:  2941
LACNIC Region origin ASes present in the Internet Routing Table:  324
LACNIC Region origin ASes announcing only one prefix:              80
LACNIC Region transit ASes present in the Internet Routing Table:  69
Average LACNIC Region AS path length visible:                     5.7
    Max LACNIC Region AS path length visible:                      17
Number of LACNIC addresses announced to Internet:            11823360
    Equivalent to 0 /8s, 180 /16s and 105 /24s
    Percentage of available LACNIC address space announced:      70.5

LACNIC AS Blocks       26592 - 26623, 27648 - 28671
LACNIC Address Blocks  200/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1131       1184         833   Telstra Pty Ltd
  703      398        364         314   UUNET
 2907      390       1975         366   SINET Japan
 2764      339        341         308   connect.com.au pty ltd
17557      325         24         127   Pakistan Telecom
 7474      314        281         205   Optus Communications Pty Ltd
 4134      293       2408          92   Data Communications Bureau
 4814      251         79          15   China Telecom (Group)
 4755      237        133          73   Videsh Sanchar Nigam Ltd. Aut
 3786      235        772         204   DACOM Corporation
17676      230       3602          24   XTAGE CORPORATION
 4766      200       2075         149   Korea Internet Exchange for "
 9583      190         33          12   Satyam Infoway Ltd.,
 9443      187         57          77   Primus Telecommunications
 9800      166        204          43   CHINA UNICOM
 4716      130        738         124   TTnet
 9768      129        384          64   Korea Telecom
 7657      125         26          87   The Internet Group Limited
 9238      124          7          16   TATA ISP
 4739      122         57         112   Commerical Internet eXchange 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1624       9047        1196   UUNET Technologies, Inc. 
 7018     1470       7267         985   AT&T 
 3908     1179       1633         493   Supernet, Inc. 
 1239      972       3144         679   Sprint 
    1      660       8076         433   GENUITY 
 7843      631        409         268   Adelphia Corp. 
  852      628       1140         445   Telus Advanced Communications
 7046      552        841         261   UUNET Technologies, Inc. 
 4323      527        488         168   Time Warner Communications, I
  209      519       2102         328   Qwest 
  690      513         75         319   Merit Network 
 7066      491        204         252   Virginia Polytechnic Institut
 6197      458        561         104   BellSouth Network Solutions, 
  705      430        133         189   UUNET Technologies, Inc. 
18566      422         96           5   Covad Communications 
 6198      420        182         196   BellSouth Network Solutions, 
 4355      405        313         116   EarthLink, Inc. 
 3549      400        709         294   Global Crossing 
 3561      393       2208         321   Cable & Wireless USA 
15290      392        215         175   AT&T Canada IES 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      806       2290         669   UUNET - Commercial IP service
 3301      341       1141         297   TeliaNet Sweden
 3215      315        819         175   France Telecom Transpac
 3320      255       1995         228   Deutsche Telekom AG
  680      238       2166         235   DFN-IP service G-WiN
 5515      213        783         174   Sonera Solution Autonomous Sy
 1257      207        400         196   SWIPnet Swedish IP Network
  719      201        306         130   LANLINK autonomous system
  786      176       1873         176   The JANET IP Service
 5400      161         70          98   BT Ignite European Backbone
 8708      158         42         146   Romania Data Systems S.A.
20858      149         17           4   This AS will be used to conne
 3303      144        517         143   Swisscom Ltd
 2856      131       1302         118   BTnet UK Regional network
 8220      124        174         114   COLT Internet - International
12302      123         18          30   MobiFon S.A.
 3246      118        378         115   Song Networks
 3269      112        754          63   TELECOM ITALIA
 5511      106        193          83   France Telecom
 3233      104         10           8   RNC - Romanian Natioanal R&D 

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      316         98         104   ImpSat USA, Inc. 
 7303      226         36          52   Telecom Argentina Stet-France
 8151      208        332         113   UniNet S.A. de C.V. 
11172      162         83          33   Servicios Alestra S.A de C.V 
 6503      155        191         107   AVANTEL, S.A. 
16814      140          9          14   NSS, S.A. 
13999      125         35          15   Mega Cable S.A. de C.V. 
10620       98          6          32   TVCABLE BOGOTA 
11340       81          2          32   Red Universitaria Nacional 
 6147       77         58          20   Telefonica Del Peru 
 1916       74        306          44   Fundacao de Amparo a Pesquisa
 6535       72          5          16   Chilesat Servicios  Empresari
15311       72         27          37   Telefonica Empresas 
11992       68          7          31   Integrated Systems 
 4270       67         18          10   Red de Interconexion Universi
 8065       67          6          14   Empresas Publicas de Medellin
 7984       62         11          40   Global One Colombia 
15034       58          5          33   TIBA SA 
 4926       57          4          47   Telintar S.A. 
 7927       57          5          40   Global One Venezuela 

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

  ASN   No of nets  Net Savings Description
 3908      1179         686      Supernet, Inc. 
 7018      1470         485      AT&T 
18566       422         417      Covad Communications 
 7843       631         363      Adelphia Corp. 
 4323       527         359      Time Warner Communications, I
 6197       458         354      BellSouth Network Solutions, 
 1580       315         302      ANOSCEUR 
 1221      1131         298      Telstra Pty Ltd
 1239       972         293      Sprint 
11492       294         293      Cable One 
 7046       552         291      UUNET Technologies, Inc. 
 4355       405         289      EarthLink, Inc. 
 6347       367         288      SAVVIS Communications Corpora
 4151       326         269      USDA 
22927       289         267      TELEFONICA DE ARGENTINA 
  705       430         241      UUNET Technologies, Inc. 
  376       346         241      Reseau Interordinateurs Scien
 7066       491         239      Virginia Polytechnic Institut
 4814       251         236      China Telecom (Group)
    1       660         227      GENUITY 

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

Bad AS  Designation  Network              Transit AS  Description
64516   PRIVATE       137.164.227.0/24      2150       California State Uni
64516   PRIVATE       137.164.228.0/22      2150       California State Uni
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
65535   PRIVATE       202.57.188.0/24       7654       Siam Global Access C
 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 
132.0.0.0/10           568     DISO-UNRRA 
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
158.255.3.0/24         702     UUNET - Commercial IP service
178.54.59.0/24        7018     AT&T 
188.1.0.0/16           680     DFN-IP service G-WiN
192.31.242.0/24        771     NASA Ames Research Center 
192.44.0.0/19          702     UUNET - Commercial IP service
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.83.16.0/20        5515     Sonera Solution Autonomous Sy
192.83.32.0/19        5515     Sonera Solution Autonomous Sy
192.83.96.0/22        5515     Sonera Solution Autonomous Sy
192.83.100.0/24       5515     Sonera Solution Autonomous Sy
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
192.136.79.0/24        719     LANLINK autonomous system
192.136.86.0/24        719     LANLINK autonomous system
192.136.87.0/24        719     LANLINK autonomous system
192.136.88.0/24        719     LANLINK autonomous system
192.139.62.0/24       6539     GT Group Telecom Services Cor
192.140.0.0/16        5511     France Telecom
192.153.136.0/21       568     DISO-UNRRA 
192.156.164.0/24     19548     Adelphia Business Solutions 
192.172.0.0/19         568     DISO-UNRRA 
192.208.29.0/24       3908     Supernet, Inc. 
192.208.30.0/23       3908     Supernet, Inc. 
192.243.36.0/23       2044     AUSNet, Inc. 

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:17       /9:3       /10:8       /11:12      /12:44      
/13:91      /14:239     /15:441     /16:7334    /17:1559    /18:2823    
/19:8029    /20:7796    /21:5612    /22:8510    /23:10238   /24:66109   
/25:138     /26:170     /27:91      /28:79      /29:64      /30:107     
/31:0       /32:40      

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

  ASN   No of nets  Total ann.   Description
 3908      747          1179      Supernet, Inc. 
 7018      507          1470      AT&T 
  702      494           806      UUNET - Commercial IP service
  690      462           513      Merit Network 
  701      438          1624      UUNET Technologies, Inc. 
18566      417           422      Covad Communications 
 7843      406           631      Adelphia Corp. 
 7066      390           491      Virginia Polytechnic Institut
 1239      360           972      Sprint 
 6198      336           420      BellSouth Network Solutions, 
 6197      335           458      BellSouth Network Solutions, 
 6140      304           316      ImpSat USA, Inc. 
 1580      301           315      ANOSCEUR 
11492      293           294      Cable One 
22927      288           289      TELEFONICA DE ARGENTINA 
 7046      243           552      UUNET Technologies, Inc. 
 3215      241           315      France Telecom Transpac
20115      231           348      Charter Communications 
 7303      225           226      Telecom Argentina Stet-France
 4355      224           405      EarthLink, Inc. 

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

  12:628      13:1        15:6        17:3        20:7        24:791    
  25:1        32:43       38:36       40:18       44:1        55:1      
  57:15       61:425      62:444      63:1854     64:1363     65:1787   
  66:1365     67:198      68:223      69:43       80:324      81:80     
 128:123     129:184     130:23      131:70      132:9       133:4      
 134:153     135:6       136:486     137:110     138:209     139:83     
 140:184     141:103     142:95      143:44      144:149     145:18     
 146:253     147:250     148:268     149:79      150:43      151:90     
 152:291     153:37      154:7       155:103     156:49      157:60     
 158:118     159:139     160:24      161:64      162:145     163:85     
 164:261     165:135     166:77      167:302     168:390     169:57     
 170:289     171:8       178:1       192:5377    193:2389    194:2010   
 195:918     196:456     198:3583    199:3046    200:2782    202:3618   
 203:4906    204:3008    205:2109    206:2363    207:2406    208:2627   
 209:2674    210:669     211:316     212:899     213:744     214:12     
 215:22      216:3162    217:557     218:71      219:17      220:33     


End of report