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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Sun 28 Dec, 2003

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

BGP routing table entries examined:                            131226
    Prefixes after maximum aggregation:                         80688
    Unique aggregates announced to Internet:                    63027
Total ASes present in the Internet Routing Table:               16378
Origin-only ASes present in the Internet Routing Table:         14228
Origin ASes announcing only one prefix:                          6521
Transit ASes present in the Internet Routing Table:              2150
Transit-only ASes present in the Internet Routing Table:           73
Average AS path length visible in the Internet Routing Table:     4.9
    Max AS path length visible:                                    19
Illegal AS announcements present in the Routing Table:             21
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           14
Number of addresses announced to Internet:                 1274255204
    Equivalent to 75 /8s, 243 /16s and 151 /24s
    Percentage of available address space announced:             34.4
    Percentage of allocated address space announced:             60.0
    Percentage of available address space allocated:             57.3
Total number of prefixes smaller than registry allocations:     57821

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

Prefixes being announced by APNIC Region ASes:                  24115
    Total APNIC prefixes after maximum aggregation:             12934
Prefixes being announced from the APNIC address blocks:         22570
    Unique aggregates announced from the APNIC address blocks:  12799
APNIC Region origin ASes present in the Internet Routing Table:  1970
APNIC Region origin ASes announcing only one prefix:              584
APNIC Region transit ASes present in the Internet Routing Table:  305
Average APNIC Region AS path length visible:                      5.0
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:            132950912
    Equivalent to 7 /8s, 236 /16s and 171 /24s
    Percentage of available APNIC address space announced:       71.6

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:                     77049
    Total ARIN prefixes after maximum aggregation:                47813
Prefixes being announced from the ARIN address blocks:            59617
    Unique aggregates announced from the ARIN address blocks:     20685
ARIN Region origin ASes present in the Internet Routing Table:     8824
ARIN Region origin ASes announcing only one prefix:                3087
ARIN Region transit ASes present in the Internet Routing Table:     842
Average ARIN Region AS path length visible:                         4.7
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               212744352
    Equivalent to 12 /8s, 174 /16s and 56 /24s
    Percentage of available ARIN address space announced:          74.6

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
                       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:                     23315
    Total RIPE prefixes after maximum aggregation:                17030
Prefixes being announced from the RIPE address blocks:            20195
    Unique aggregates announced from the RIPE address blocks:     13364
RIPE Region origin ASes present in the Internet Routing Table:     5066
RIPE Region origin ASes announcing only one prefix:                2717
RIPE Region transit ASes present in the Internet Routing Table:     889
Average RIPE Region AS path length visible:                         5.6
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               147857280
    Equivalent to 8 /8s, 208 /16s and 31 /24s
    Percentage of available RIPE address space announced:          67.8

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, 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:                    5579
    Total LACNIC prefixes after maximum aggregation:               2229
Prefixes being announced from the LACNIC address blocks:           5183
    Unique aggregates announced from the LACNIC address blocks:    3117
LACNIC Region origin ASes present in the Internet Routing Table:    364
LACNIC Region origin ASes announcing only one prefix:               105
LACNIC Region transit ASes present in the Internet Routing Table:    70
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              13785600
    Equivalent to 0 /8s, 210 /16s and 90 /24s
    Percentage of available LACNIC address space announced:        41.1

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

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

Prefixes being announced by AfriNIC Region ASes:                   1147
    Total AfriNIC prefixes after maximum aggregation:               682
Prefixes being announced from the AfriNIC address blocks:           728
    Unique aggregates announced from the AfriNIC address blocks:    559
AfriNIC Region origin ASes present in the Internet Routing Table:    93
AfriNIC Region origin ASes announcing only one prefix:               28
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              1762048
    Equivalent to 0 /8s, 26 /16s and 227 /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      910       1098         655   Telstra Pty Ltd
 4134      717       2397         109   Data Communications Bureau
 2907      363       1847         340   SINET Japan
 9443      343         69          79   Primus Telecommunications
  703      338        372         262   UUNET
 4755      322        130          60   Videsh Sanchar Nigam Ltd. Aut
17557      311         22         151   Pakistan Telecom
17676      292       4300          38   XTAGE CORPORATION
 2764      289        289         239   connect.com.au pty ltd
 4766      287       2897         202   Korea Internet Exchange for "
 9583      272         44          11   Satyam Infoway Ltd.,
 7474      262        305         212   Optus Communications Pty Ltd
 4538      249       1810          20   China Education and Research 
 3786      222        767         196   DACOM Corporation
 9929      222        154          27   China Netcom Corp.
 9942      217         69         128   COMindico Australia
 9800      212        346          57   CHINA UNICOM
 9498      173         22          29   BHARTI BT INTERNET LTD.
17642      152         40         111   RequestDSL BGP AS# for Sydney
 4837      147       1272          99   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1418       7073         983   AT&T 
  701     1415       8663         971   UUNET Technologies, Inc. 
 1239      945       3089         658   Sprint 
 6197      824        477         248   BellSouth Network Solutions, 
18566      734        176           8   Covad Communications 
  209      730       3529         513   Qwest 
 3356      725      10925         575   Level 3 Communications, LLC 
 4323      677        589         204   Time Warner Communications, I
20115      582        320         332   Charter Communications 
 6198      568        338         194   BellSouth Network Solutions, 
  852      505       1124         402   Telus Advanced Communications
 7843      505        521         116   Adelphia Corp. 
 7066      504        207         270   Virginia Polytechnic Institut
 7132      450       7388         310   Southwestern Bell Internet Se
19029      412        173         267   New Edge Networks 
 2386      407        516         230   AT&T Data Communications Serv
  690      400         58         270   Merit Network 
 4355      390        323         101   EarthLink, Inc. 
27364      381         28          24   Armstrong Cable Services 
  705      379        196         234   UUNET Technologies, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      697       2059         580   UUNET - Commercial IP service
 3301      297       1154         282   TeliaNet Sweden
 3320      281       1972         231   Deutsche Telekom AG
 8220      265        425         251   COLT Internet - International
 1257      258        505         192   SWIPnet Swedish IP Network
  680      229       2022         226   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      173        762         135   Sonera Solution Autonomous Sy
25186      168        201         109   France Telecom Transpac's Tra
 8708      165        111         158   Romania Data Systems S.A.
 3215      144        754          67   France Telecom Transpac
 3303      144        557         137   Swisscom Ltd
 5400      141        176         126   BT Ignite European Backbone
  719      134        288         104   LANLINK autonomous system
12302      126         18          33   MobiFon S.A.
 3269      119        941          64   TELECOM ITALIA
 2856      118       1294         108   BTnet UK Regional network
 3352      102        876          30   Ibernet, Internet Access Netw

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      350        120          68   ImpSat
 8151      240        336         124   UniNet S.A. de C.V. 
11172      198         77          44   Servicios Alestra S.A de C.V 
 7303      173         50          16   Telecom Argentina Stet-France
16814      156         10           5   NSS, S.A. 
 6505      135         91          95   Global One Communicaoes Ltda 
10620      131         11          36   TVCABLE BOGOTA 
 6503      127        204          92   AVANTEL, S.A. 
 6147      123         78          20   Telefonica Del Peru 
11340      108          3          29   Red Universitaria Nacional 
 8065       77         10          21   Empresas Publicas de Medellin
 6535       76          5          19   Chilesat Servicios  Empresari
15311       76         16          39   Telefonica Empresas 
 6429       73         51          13   AT&T Chile Internet S.A. 
 4270       69         17           8   Red de Interconexion Universi
11992       68         25          32   Integrated Systems 
11311       66          7          22   Sinectis S.A. 
 7080       64          4           1   Electronica y Comunicaciones 
27699       62        168          15   TELECOMUNICACOES DE SAO PAULO
14420       61          4          23   ANDINATEL S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      249        632         218   The Internet Solution 
 5536      103          8           7   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       90        272          80   The Internetworking Company o
 2561       59          6           3   Egyptian Universities Network
11845       36          9          11   Data Pro Business Online 
 3208       33          2           1   ARN Network
16637       26          9          19   Johnnic e-Ventures 
 9129       25          3           4   UUNET Kenya
 5713       24         93          22   Telkom SA Ltd 
12455       24          4           2   Jambonet Autonomous system
24835       23         18           6   RAYA Telecom - Egypt
 6713       22         38           9   Itissalat Al-MAGHRIB
10798       18          1          12   Standard Bank of South Africa
 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 
 2609       12         10           3   Tunisia BackBone AS
 8346       12          6          12   SONATEL-AS Autonomous System

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

  ASN   No of nets  Net Savings Description
18566       734         726      Covad Communications 
 4134       717         608      Data Communications Bureau
 6197       824         576      BellSouth Network Solutions, 
 4323       677         473      Time Warner Communications, I
  701      1415         444      UUNET Technologies, Inc. 
 7843       505         389      Adelphia Corp. 
 6198       568         374      BellSouth Network Solutions, 
27364       381         357      Armstrong Cable Services 
22909       320         307      Comcast Cable Corporation 
 5668       320         304      Century Telephone 
22773       327         297      Cox Communications, Inc. Atla
 4355       390         289      EarthLink, Inc. 
 1239       945         287      Sprint 
 6140       350         282      ImpSat
 9443       343         264      Primus Telecommunications
 4755       322         262      Videsh Sanchar Nigam Ltd. Aut
 9583       272         261      Satyam Infoway Ltd.,
 1221       910         255      Telstra Pty Ltd
17676       292         254      XTAGE CORPORATION
 6347       330         251      SAVVIS Communications Corpora

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

Bad AS  Designation  Network              Transit AS  Description
31769   UNALLOCATED   12.164.144.0/24       7018       AT&T 
31753   UNALLOCATED   63.251.94.0/24       10913       InterNAP Network Ser
31769   UNALLOCATED   65.218.210.0/24        701       UUNET Technologies, 
31769   UNALLOCATED   65.218.210.0/23       7018       AT&T 
31769   UNALLOCATED   65.218.211.0/24        701       UUNET Technologies, 
31766   UNALLOCATED   67.99.177.0/24        4513       PFM Communications, 
31758   UNALLOCATED   69.22.180.0/24        4474       Global Village Commu
31780   UNALLOCATED   69.38.148.0/24         701       UUNET Technologies, 
31752   UNALLOCATED   69.60.224.0/20       23184       Persona Communicatio
64512   PRIVATE       131.95.1.240/28      16430       University of Southe
64198   RESERVED      192.107.195.0/24     22767       NASA Earth Science D
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
64198   RESERVED      198.10.49.0/24       22767       NASA Earth Science D
65500   PRIVATE       202.95.128.0/19       4761       INDOSATNET-ASN
31763   UNALLOCATED   205.235.32.0/19       3593       EPIX 
31763   UNALLOCATED   205.235.48.0/24       3593       EPIX 
31763   UNALLOCATED   205.235.49.0/24       3593       EPIX 
31757   UNALLOCATED   207.105.158.0/24      7132       Southwestern Bell In
31776   UNALLOCATED   208.28.117.0/24       6395       Broadwing Communicat
31766   UNALLOCATED   209.10.138.0/24       4513       PFM Communications, 
31749   UNALLOCATED   216.248.43.0/24       2551       ICG NetAhead, Inc 

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
192.84.205.0/24        719     LANLINK autonomous system
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      /12:57      
/13:102     /14:277     /15:494     /16:7531    /17:1844    /18:3430    
/19:8852    /20:9301    /21:6711    /22:9366    /23:11012   /24:71550   
/25:185     /26:236     /27:138     /28:32      /29:6       /30:46      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
18566      728           734      Covad Communications 
 6197      672           824      BellSouth Network Solutions, 
 7018      523          1418      AT&T 
  701      431          1415      UUNET Technologies, Inc. 
  702      426           697      UUNET - Commercial IP service
 6198      426           568      BellSouth Network Solutions, 
 7066      397           504      Virginia Polytechnic Institut
27364      375           381      Armstrong Cable Services 
 3356      369           725      Level 3 Communications, LLC 
20115      364           582      Charter Communications 
  690      361           400      Merit Network 
 1239      338           945      Sprint 
 5668      283           320      Century Telephone 
19029      266           412      New Edge Networks 
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      228           281      Deutsche Telekom AG
 6386      222           248      bellsouth.net, inc. 
 4355      215           390      EarthLink, Inc. 
 6517      212           237      Yipes Communications, Inc. 
  209      205           730      Qwest 

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

   4:3         5:1         9:1        12:761      13:1        14:1      
  15:6        16:1        17:3        20:7        22:2        24:876    
  25:4        32:83       36:1        38:44       40:26       44:1      
  55:1        56:1        57:14       61:329      62:453      63:1816   
  64:1798     65:1803     66:2204     67:247      68:689      69:376    
  80:434      81:184      82:58      128:147     129:260     130:69     
 131:80      132:17      134:176     135:16      136:129     137:115    
 138:122     139:38      140:164     141:133     142:111     143:48     
 144:62      145:39      146:290     147:73      148:319     149:87     
 150:119     151:60      152:208     153:59      154:1       155:131    
 156:60      157:62      158:133     159:137     160:46      161:49     
 162:368     163:68      164:330     165:175     166:104     167:210    
 168:181     169:96      170:297     171:8       192:5509    193:2483   
 194:2003    195:1301    196:516     198:3628    199:2779    200:3089   
 201:5       202:4197    203:5407    204:2969    205:2034    206:2258   
 207:2582    208:2464    209:2893    210:997     211:402     212:910    
 213:970     214:23      215:25      216:3349    217:803     218:119    
 219:80      220:122     221:18     

End of report