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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Tue 09 Dec, 2003

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

BGP routing table entries examined:                            131065
    Prefixes after maximum aggregation:                         80727
    Unique aggregates announced to Internet:                    62854
Total ASes present in the Internet Routing Table:               16300
Origin-only ASes present in the Internet Routing Table:         14167
Origin ASes announcing only one prefix:                          6482
Transit ASes present in the Internet Routing Table:              2133
Transit-only ASes present in the Internet Routing Table:           67
Average AS path length visible in the Internet Routing Table:     4.7
    Max AS path length visible:                                    19
Illegal AS announcements present in the Routing Table:              1
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           13
Number of addresses announced to Internet:                 1271476452
    Equivalent to 75 /8s, 201 /16s and 48 /24s
    Percentage of available address space announced:             34.3
    Percentage of allocated address space announced:             59.8
    Percentage of available address space allocated:             57.3
Total number of prefixes smaller than registry allocations:     57860

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

Prefixes being announced by APNIC Region ASes:                  23938
    Total APNIC prefixes after maximum aggregation:             12988
Prefixes being announced from the APNIC address blocks:         22360
    Unique aggregates announced from the APNIC address blocks:  12699
APNIC Region origin ASes present in the Internet Routing Table:  1958
APNIC Region origin ASes announcing only one prefix:              579
APNIC Region transit ASes present in the Internet Routing Table:  312
Average APNIC Region AS path length visible:                      4.8
    Max APNIC Region AS path length visible:                       16
Number of APNIC addresses announced to Internet:            131764992
    Equivalent to 7 /8s, 218 /16s and 147 /24s
    Percentage of available APNIC address space announced:       71.0

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     77270
    Total ARIN prefixes after maximum aggregation:                47902
Prefixes being announced from the ARIN address blocks:            59867
    Unique aggregates announced from the ARIN address blocks:     20733
ARIN Region origin ASes present in the Internet Routing Table:     8786
ARIN Region origin ASes announcing only one prefix:                3065
ARIN Region transit ASes present in the Internet Routing Table:     830
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               211601824
    Equivalent to 12 /8s, 156 /16s and 201 /24s
    Percentage of available ARIN address space announced:          74.2

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, 29695 - 30719
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     23142
    Total RIPE prefixes after maximum aggregation:                16928
Prefixes being announced from the RIPE address blocks:            20002
    Unique aggregates announced from the RIPE address blocks:     13315
RIPE Region origin ASes present in the Internet Routing Table:     5030
RIPE Region origin ASes announcing only one prefix:                2702
RIPE Region transit ASes present in the Internet Routing Table:     877
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               146390400
    Equivalent to 8 /8s, 185 /16s and 189 /24s
    Percentage of available RIPE address space announced:          67.1

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
                       30720 - 31743
RIPE Address Blocks    62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    5595
    Total LACNIC prefixes after maximum aggregation:               2207
Prefixes being announced from the LACNIC address blocks:           5095
    Unique aggregates announced from the LACNIC address blocks:    3096
LACNIC Region origin ASes present in the Internet Routing Table:    365
LACNIC Region origin ASes announcing only one prefix:               108
LACNIC Region transit ASes present in the Internet Routing Table:    69
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              13568768
    Equivalent to 0 /8s, 207 /16s and 11 /24s
    Percentage of available LACNIC address space announced:        40.4

LACNIC AS Blocks       26592 - 26623, 27648 - 28671
LACNIC Address Blocks  200/7

Emerging AfriNIC Region Analysis Summary
----------------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1118
    Total AfriNIC prefixes after maximum aggregation:               702
Prefixes being announced from the AfriNIC address blocks:           726
    Unique aggregates announced from the AfriNIC address blocks:    556
AfriNIC Region origin ASes present in the Internet Routing Table:    94
AfriNIC Region origin ASes announcing only one prefix:               28
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              1757184
    Equivalent to 0 /8s, 26 /16s and 208 /24s
    Percentage of available AfriNIC address space announced:       10.5

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221      951       1118         672   Telstra Pty Ltd
 4134      556       2389         110   Data Communications Bureau
 2907      363       1863         340   SINET Japan
 9443      340         71          81   Primus Telecommunications
 4755      339        130          57   Videsh Sanchar Nigam Ltd. Aut
  703      330        355         257   UUNET
17557      305         22         154   Pakistan Telecom
17676      287       4220          37   XTAGE CORPORATION
 2764      275        288         236   connect.com.au pty ltd
 4766      268       2896         192   Korea Internet Exchange for "
 7474      262        306         212   Optus Communications Pty Ltd
 4538      248       1778          22   China Education and Research 
 3786      235        771         204   DACOM Corporation
 9583      228         44          11   Satyam Infoway Ltd.,
 9929      216        152          27   China Netcom Corp.
 9942      215         69         125   COMindico Australia
 9800      208        345          58   CHINA UNICOM
 9498      173         22          31   BHARTI BT INTERNET LTD.
17642      154         40         113   RequestDSL BGP AS# for Sydney
 4739      143         60         132   Commerical Internet eXchange 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1427       8665         982   UUNET Technologies, Inc. 
 7018     1418       7058         988   AT&T 
 1239      946       3076         660   Sprint 
  209      860       3446         532   Qwest 
 6197      766        436         215   BellSouth Network Solutions, 
18566      732        176           8   Covad Communications 
 3356      707      10908         565   Level 3 Communications, LLC 
 4323      678        608         205   Time Warner Communications, I
 6198      611        373         225   BellSouth Network Solutions, 
20115      582        320         333   Charter Communications 
 7843      518        506         120   Adelphia Corp. 
 7066      511        207         271   Virginia Polytechnic Institut
  852      506       1123         404   Telus Advanced Communications
 7132      452       7341         313   Southwestern Bell Internet Se
19029      420        174         277   New Edge Networks 
 2386      403        527         210   AT&T Data Communications Serv
  690      400         58         270   Merit Network 
 4355      391        329         101   EarthLink, Inc. 
  705      383        196         238   UUNET Technologies, Inc. 
  376      357        359         114   Reseau Interordinateurs Scien

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      686       2075         569   UUNET - Commercial IP service
 3301      301       1154         285   TeliaNet Sweden
 3320      286       1973         234   Deutsche Telekom AG
 8220      257        420         245   COLT Internet - International
 1257      239        487         190   SWIPnet Swedish IP Network
  680      232       2038         228   DFN-IP service G-WiN
13083      215         51           8   Mannesmann Datenverarbeitung 
 3246      185        424         183   Song Networks
  786      175       1826         175   The JANET IP Service
 5515      175        778         137   Sonera Solution Autonomous Sy
25186      173        215         124   France Telecom Transpac's Tra
 5400      164        175         140   BT Ignite European Backbone
 8708      161        111         156   Romania Data Systems S.A.
 3303      144        557         137   Swisscom Ltd
 3215      143        722          69   France Telecom Transpac
  719      133        288         103   LANLINK autonomous system
12302      125         18          32   MobiFon S.A.
 3269      119        941          64   TELECOM ITALIA
 2856      116       1294         107   BTnet UK Regional network
 3352      100        844          28   Ibernet, Internet Access Netw

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      346        120          66   ImpSat
 8151      241        352         125   UniNet S.A. de C.V. 
11172      195         77          43   Servicios Alestra S.A de C.V 
 7303      184         46          17   Telecom Argentina Stet-France
16814      156         10           5   NSS, S.A. 
 6505      134         91          94   Global One Communicaoes Ltda 
 6503      127        204          93   AVANTEL, S.A. 
 6147      124         78          20   Telefonica Del Peru 
10620      123          8          27   TVCABLE BOGOTA 
11340      108          3          29   Red Universitaria Nacional 
11992       89         24          31   Integrated Systems 
15311       76         16          39   Telefonica Empresas 
 6535       75          5          18   Chilesat Servicios  Empresari
 8065       75         10          19   Empresas Publicas de Medellin
 4270       69         18           9   Red de Interconexion Universi
11311       66          7          22   Sinectis S.A. 
 7080       64          4           1   Electronica y Comunicaciones 
14420       62          4          21   ANDINATEL S.A. 
27699       60        152          15   TELECOMUNICACOES DE SAO PAULO
 1916       59        247          39   Fundacao de Amparo a Pesquisa

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      249        632         218   The Internet Solution 
 2018       94        297          92   Tertiary Education Network 
 5536       87          7          26   Internet Egypt Network
 2905       60        245          53   The Internetworking Company o
 2561       58          6           3   Egyptian Universities Network
11845       35          9          10   Data Pro Business Online 
11569       31         29          28   satellite data networks 
16284       31          4           5   GST-N Autonomous System
16637       26          9          19   Johnnic e-Ventures 
 9129       25          3           4   UUNET Kenya
 5713       24         93          22   Telkom SA Ltd 
12455       23          4           2   Jambonet Autonomous system
 6713       22         38           9   Itissalat Al-MAGHRIB
10798       18          1          12   Standard Bank of South Africa
 3208       17          2           1   ARN Network
 8524       17          1           3   AUCEGYPT Autonomous System
12258       15          3          10   Vodacom Internet Company 
15706       15          2           5   Sudatel Internet Exchange Aut
17148       14          1           8   First National Bank 
 8346       12          6          12   SONATEL-AS Autonomous System

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

  ASN   No of nets  Net Savings Description
18566       732         724      Covad Communications 
 6197       766         551      BellSouth Network Solutions, 
 4323       678         473      Time Warner Communications, I
 4134       556         446      Data Communications Bureau
 7018      1418         430      AT&T 
 7843       518         398      Adelphia Corp. 
 6198       611         386      BellSouth Network Solutions, 
27364       354         330      Armstrong Cable Services 
  209       860         328      Qwest 
22909       317         305      Comcast Cable Corporation 
 4355       391         290      EarthLink, Inc. 
 1239       946         286      Sprint 
22773       314         285      Cox Communications, Inc. Atla
 4755       339         282      Videsh Sanchar Nigam Ltd. Aut
 6140       346         280      ImpSat
 1221       951         279      Telstra Pty Ltd
 5668       278         260      Century Telephone 
 9443       340         259      Primus Telecommunications
 6347       332         253      SAVVIS Communications Corpora
17676       287         250      XTAGE CORPORATION

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

Bad AS  Designation  Network              Transit AS  Description
64512   PRIVATE       131.95.1.240/28      16430       University of Southe

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
192.43.230.0/24       4738     South Australian Academic Res
192.44.0.0/19          702     UUNET - Commercial IP service
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
192.172.0.0/19         568     DISO-UNRRA 

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:4       /10:6       /11:15      /12:58      
/13:101     /14:276     /15:488     /16:7503    /17:1831    /18:3362    
/19:8794    /20:9294    /21:6672    /22:9390    /23:11031   /24:71461   
/25:185     /26:237     /27:156     /28:69      /29:21      /30:50      
/31:0       /32:42      

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

  ASN   No of nets  Total ann.   Description
18566      726           732      Covad Communications 
 6197      621           766      BellSouth Network Solutions, 
 7018      518          1418      AT&T 
 6198      471           611      BellSouth Network Solutions, 
  701      433          1427      UUNET Technologies, Inc. 
  702      415           686      UUNET - Commercial IP service
 7066      403           511      Virginia Polytechnic Institut
20115      364           582      Charter Communications 
  690      361           400      Merit Network 
 3356      356           707      Level 3 Communications, LLC 
27364      348           354      Armstrong Cable Services 
 1239      333           946      Sprint 
  209      296           860      Qwest 
19029      272           420      New Edge Networks 
 5668      244           278      Century Telephone 
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      229           286      Deutsche Telekom AG
 6517      221           246      Yipes Communications, Inc. 
 4355      216           391      EarthLink, Inc. 
 6386      202           227      bellsouth.net, inc. 

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

   4:3        12:757      13:1        15:6        16:1        17:3      
  20:7        24:867      32:82       38:44       40:24       43:1      
  44:2        55:1        56:1        57:16       61:321      62:450    
  63:1852     64:1814     65:1820     66:2193     67:282      68:654    
  69:353      80:443      81:167      82:37      128:149     129:264    
 130:67      131:80      132:17      134:188     135:16      136:183    
 137:112     138:126     139:29      140:162     141:140     142:111    
 143:49      144:64      145:39      146:290     147:72      148:315    
 149:86      150:118     151:60      152:208     153:56      154:1      
 155:128     156:60      157:62      158:136     159:137     160:46     
 161:51      162:366     163:72      164:334     165:173     166:104    
 167:212     168:181     169:94      170:308     171:9       192:5489   
 193:2469    194:2004    195:1301    196:515     198:3633    199:2827   
 200:3041    201:3       202:4230    203:5346    204:2944    205:2006   
 206:2273    207:2621    208:2485    209:2810    210:954     211:378    
 212:921     213:935     214:23      215:25      216:3405    217:805    
 218:120     219:88      220:117     221:16     

End of report