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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Fri 09 Jul, 2004

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

BGP routing table entries examined:                              142356
    Prefixes after maximum aggregation:                           85352
    Unique aggregates announced to Internet:                      68297
Total ASes present in the Internet Routing Table:                 17553
Origin-only ASes present in the Internet Routing Table:           15211
Origin ASes announcing only one prefix:                            7130
Transit ASes present in the Internet Routing Table:                2342
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       4.8
    Max AS path length visible:                                      26
Prefixes from unregistered ASNs in the Routing Table:                 8
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             19
Number of addresses announced to Internet:                   1300503528
    Equivalent to 77 /8s, 132 /16s and 27 /24s
    Percentage of available address space announced:               35.1
    Percentage of allocated address space announced:               57.6
    Percentage of available address space allocated:               60.9
Total number of prefixes smaller than registry allocations:       65412

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

Prefixes being announced by APNIC Region ASes:                    27265
    Total APNIC prefixes after maximum aggregation:               14022
Prefixes being announced from the APNIC address blocks:           25481
    Unique aggregates announced from the APNIC address blocks:    13939
APNIC Region origin ASes present in the Internet Routing Table:    2064
APNIC Region origin ASes announcing only one prefix:                622
APNIC Region transit ASes present in the Internet Routing Table:    337
Average APNIC Region AS path length visible:                        4.9
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              151553216
    Equivalent to 9 /8s, 8 /16s and 132 /24s
    Percentage of available APNIC address space announced:         69.2

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     81448
    Total ARIN prefixes after maximum aggregation:                49841
Prefixes being announced from the ARIN address blocks:            63272
    Unique aggregates announced from the ARIN address blocks:     21886
ARIN Region origin ASes present in the Internet Routing Table:     9294
ARIN Region origin ASes announcing only one prefix:                3328
ARIN Region transit ASes present in the Internet Routing Table:     906
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               227279904
    Equivalent to 13 /8s, 140 /16s and 4 /24s
    Percentage of available ARIN address space announced:          75.3

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
                       31744 - 33791
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     26228
    Total RIPE prefixes after maximum aggregation:                18547
Prefixes being announced from the RIPE address blocks:            23015
    Unique aggregates announced from the RIPE address blocks:     15245
RIPE Region origin ASes present in the Internet Routing Table:     5647
RIPE Region origin ASes announcing only one prefix:                3045
RIPE Region transit ASes present in the Internet Routing Table:     979
Average RIPE Region AS path length visible:                         5.4
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               165887808
    Equivalent to 9 /8s, 227 /16s and 63 /24s
    Percentage of available RIPE address space announced:          58.2

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, 33792 - 34815
RIPE Address Blocks    62/8, 80/5, 88/8, 188/8, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    6220
    Total LACNIC prefixes after maximum aggregation:               2258
Prefixes being announced from the LACNIC address blocks:           5875
    Unique aggregates announced from the LACNIC address blocks:    3603
LACNIC Region origin ASes present in the Internet Routing Table:    383
LACNIC Region origin ASes announcing only one prefix:               112
LACNIC Region transit ASes present in the Internet Routing Table:    73
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC addresses announced to Internet:              15275008
    Equivalent to 0 /8s, 233 /16s and 20 /24s
    Percentage of available LACNIC address space announced:        45.5

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

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

Prefixes being announced by AfriNIC Region ASes:                   1192
    Total AfriNIC prefixes after maximum aggregation:               684
Prefixes being announced from the AfriNIC address blocks:           784
    Unique aggregates announced from the AfriNIC address blocks:    588
AfriNIC Region origin ASes present in the Internet Routing Table:    92
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              1889024
    Equivalent to 0 /8s, 28 /16s and 211 /24s
    Percentage of available AfriNIC address space announced:       11.3

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      826       1057         596   Telstra Pty Ltd
 4134      806       3752         146   Data Communications Bureau
 4766      497       2895         264   Korea Internet Exchange for "
 9583      485         39         102   Satyam Infoway Ltd.,
 4755      397        133          61   Videsh Sanchar Nigam Ltd. Aut
 9443      353         69          78   Primus Telecommunications
 2907      352       1840         326   SINET Japan
17676      341       5084          33   XTAGE CORPORATION
 9929      326        157          32   China Netcom Corp.
17557      321         22         164   Pakistan Telecom
  703      320        342         249   UUNET
 2764      288        258         236   connect.com.au pty ltd
 7474      267        269         207   Optus Communications Pty Ltd
 9942      229         71         127   COMindico Australia
 4802      226         25         141   Wantree Development
 9800      224        369          62   CHINA UNICOM
 9498      218         48          49   BHARTI BT INTERNET LTD.
10026      206         11         130   IXNet Hong Kong Limited
10036      198         18         179   C&M Communication Co. Ltd.
 4837      189       2019         105   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1442       6881         994   AT&T 
  701     1302       8440         934   UUNET Technologies, Inc. 
 6347      982        400         103   SAVVIS Communications Corpora
 1239      938       2889         630   Sprint 
 3356      892      10916         677   Level 3 Communications, LLC 
 4323      739        569         206   Time Warner Communications, I
18566      725        192           8   Covad Communications 
 6197      710        526         278   BellSouth Network Solutions, 
  209      614       3454         506   Qwest 
20115      563        374         289   Charter Communications 
 2548      549        899         131   Business Internet, Inc. 
 7843      514        665         129   Adelphia Corp. 
 6198      512        396         214   BellSouth Network Solutions, 
  852      511       1142         399   Telus Advanced Communications
 7132      457       7872         343   Southwestern Bell Internet Se
 2386      406        549         225   AT&T Data Communications Serv
  721      398      13152         288   DLA Systems Automation Center
22909      398        826          22   Comcast Cable Corporation 
 4355      391        323         101   EarthLink, Inc. 
  705      389        128         265   UUNET Technologies, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      647       2039         541   UUNET - Commercial IP service
 3320      297       2463         237   Deutsche Telekom AG
 3301      279       1098         268   TeliaNet Sweden
 8220      274        429         262   COLT Internet - International
 1257      248        498         196   SWIPnet Swedish IP Network
  680      244       2025         239   DFN-IP service G-WiN
13083      216         51           8   Mannesmann Datenverarbeitung 
 3246      212        478         209   Song Networks
 5515      200        842         146   Sonera Solution Autonomous Sy
 8708      190        112         176   Romania Data Systems S.A.
 3215      184        895          71   France Telecom Transpac
  719      181        288         103   LANLINK autonomous system
  786      174       1794         174   The JANET IP Service
25186      171        156         113   France Telecom Transpac's Tra
 6746      157         29         128   Dynamic Network Technologies,
 5400      145        205         120   BT Ignite European Backbone
 3269      135       1099          64   TELECOM ITALIA
 3303      131        609         130   Swisscom Ltd
 8866      128         14          11   Bulgarian Telecommunication C
12302      128         18          32   MobiFon S.A.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
11172      356         96          58   Servicios Alestra S.A de C.V 
 6140      334        140          65   ImpSat
 8151      275        389         127   UniNet S.A. de C.V. 
16814      219         14           8   NSS, S.A. 
 6147      187         86          20   Telefonica Del Peru 
 7303      148         54          27   Telecom Argentina Stet-France
 6505      134         90          92   Global One Communicaoes Ltda 
 6503      131        202          89   AVANTEL, S.A. 
11992       90          9          29   Integrated Systems 
11556       87         57          24   Cable-Wireless Panama 
 6535       81          5          16   Chilesat Servicios  Empresari
14420       78          5          28   ANDINATEL S.A. 
15311       75         19          37   Telefonica Empresas 
11311       73          7          18   Sinectis S.A. 
14535       72          6           5   Techtel S.A. 
 5639       71          8           8   Telecommunications Services o
 4270       70         18           9   Red de Interconexion Universi
14117       69          5           4   Telefonica del Sur S.A. 
11340       67          5          36   Red Universitaria Nacional 
14259       67          4           5   GTD Internet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      253        632         220   The Internet Solution 
 5536      111         16           4   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       90        276          80   The Internetworking Company o
11845       39          9          11   Data Pro Business Online 
20928       35         16           1   Noor Advanced Technologies AS
24835       31         18           6   RAYA Telecom - Egypt
16637       30          9          23   Johnnic e-Ventures 
 9129       27          3           4   UUNET Kenya
 6713       26         38           9   Itissalat Al-MAGHRIB
12455       26          4           2   Jambonet Autonomous system
 5713       25        125          23   Telkom SA Ltd 
14988       25         16           1   Botswana Telecommunications C
 8524       24          2           7   AUCEGYPT Autonomous System
10798       18          1          12   Standard Bank of South Africa
15706       16          2           3   Sudatel Internet Exchange Aut
12258       15          3          10   Vodacom Internet Company 
 8346       13          6          12   SONATEL-AS Autonomous System
17148       13          1           7   First National Bank 
 2609       12         26           4   Tunisia BackBone AS

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

  ASN   No of nets  Net Savings Description
 6347       982         879      SAVVIS Communications Corpora
18566       725         717      Covad Communications 
 4134       806         660      Data Communications Bureau
 4323       739         533      Time Warner Communications, I
 6197       710         432      BellSouth Network Solutions, 
 2548       549         418      Business Internet, Inc. 
 7843       514         385      Adelphia Corp. 
 9583       485         383      Satyam Infoway Ltd.,
22909       398         376      Comcast Cable Corporation 
  701      1302         368      UUNET Technologies, Inc. 
 5668       380         362      Century Telephone 
27364       377         358      Armstrong Cable Services 
 4755       397         336      Videsh Sanchar Nigam Ltd. Aut
22773       383         327      Cox Communications, Inc. Atla
 1239       938         308      Sprint 
17676       341         308      XTAGE CORPORATION
 6467       337         305      E.Spire Communications, Inc. 
 6198       512         298      BellSouth Network Solutions, 
11172       356         298      Servicios Alestra S.A de C.V 
 9929       326         294      China Netcom Corp.

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

Bad AS  Designation  Network              Transit AS  Description
18416   UNALLOCATED   61.56.96.0/24         9919       New Century InfoComm
18416   UNALLOCATED   61.56.96.0/20         9919       New Century InfoComm
18416   UNALLOCATED   61.56.97.0/24         9919       New Century InfoComm
18416   UNALLOCATED   61.56.98.0/24         9919       New Century InfoComm
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
18412   UNALLOCATED   211.77.0.0/19         9674       Far EastTone Telecom
63330   RESERVED      213.8.224.0/23        5486       Euronet Digital Comm
63330   RESERVED      213.8.226.0/23        5486       Euronet Digital Comm

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

Network            Origin AS  Description
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           721     DLA Systems Automation Center
156.154.16.0/22       7786     Lockheed Martin IMS 
158.0.0.0/13           721     DLA Systems Automation Center
164.234.0.0/18         721     DLA Systems Automation Center
164.234.0.0/16         721     DLA Systems Automation Center
192.43.230.0/24       4738     South Australian Academic Res
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
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 
192.172.11.0/24        721     DLA Systems Automation Center

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:18       /9:3       /10:6       /11:15      /12:59      
/13:127     /14:301     /15:524     /16:7895    /17:2095    /18:3681    
/19:9532    /20:9993    /21:7518    /22:10376   /23:11915   /24:77565   
/25:224     /26:224     /27:163     /28:24      /29:15      /30:69      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
 6347      759           982      SAVVIS Communications Corpora
18566      708           725      Covad Communications 
 7018      558          1442      AT&T 
 6197      539           710      BellSouth Network Solutions, 
 3356      502           892      Level 3 Communications, LLC 
  702      395           647      UUNET - Commercial IP service
 6198      381           512      BellSouth Network Solutions, 
 1239      374           938      Sprint 
  701      367          1302      UUNET Technologies, Inc. 
27364      364           377      Armstrong Cable Services 
 5668      333           380      Century Telephone 
 9583      331           485      Satyam Infoway Ltd.,
 2548      330           549      Business Internet, Inc. 
 4766      316           497      Korea Internet Exchange for "
20115      297           563      Charter Communications 
 9929      258           326      China Netcom Corp.
14824      254           278      NewSouth Communications Corp.
 3320      246           297      Deutsche Telekom AG
13609      244           287      Choice One Communications Inc
25844      244           244      Skadden, Arps, Slate, Meagher

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

   4:3        12:829      13:1        15:5        16:2        17:3      
  20:8        24:762      32:65       33:2        38:72       40:53     
  44:4        55:1        56:3        57:15       61:456      62:506    
  63:1863     64:2040     65:2039     66:2668     67:337      68:500    
  69:597      70:64       80:566      81:337      82:183      83:96     
  84:5       128:147     129:174     130:80      131:186     132:23     
 134:178     135:17      136:178     137:54      138:169     139:35     
 140:169     141:122     142:118     143:60      144:100     145:41     
 146:298     147:77      148:416     149:114     150:96      151:71     
 152:162     153:64      154:2       155:125     156:60      157:63     
 158:139     159:148     160:52      161:64      162:382     163:76     
 164:186     165:164     166:103     167:219     168:232     169:111    
 170:287     171:8       192:5553    193:2808    194:2064    195:1382   
 196:554     198:3663    199:3113    200:3610    201:8       202:4700   
 203:5652    204:3129    205:2094    206:2266    207:2488    208:2194   
 209:3029    210:1450    211:569     212:989     213:1171    214:70     
 215:30      216:3726    217:985     218:171     219:118     220:233    
 221:31      222:60     

End of report