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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Tue 30 Nov, 2004

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

BGP routing table entries examined:                              151510
    Prefixes after maximum aggregation:                           89267
    Unique aggregates announced to Internet:                      72534
Total ASes present in the Internet Routing Table:                 18535
Origin-only ASes present in the Internet Routing Table:           16078
Origin ASes announcing only one prefix:                            7566
Transit ASes present in the Internet Routing Table:                2457
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      23
Prefixes from unregistered ASNs in the Routing Table:                19
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1356796264
    Equivalent to 80 /8s, 223 /16s and 17 /24s
    Percentage of available address space announced:               36.6
    Percentage of allocated address space announced:               59.2
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       69949

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

Prefixes being announced by APNIC Region ASes:                    29379
    Total APNIC prefixes after maximum aggregation:               14478
Prefixes being announced from the APNIC address blocks:           27439
    Unique aggregates announced from the APNIC address blocks:    14346
APNIC Region origin ASes present in the Internet Routing Table:    2163
APNIC Region origin ASes announcing only one prefix:                649
APNIC Region transit ASes present in the Internet Routing Table:    333
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              167834112
    Equivalent to 10 /8s, 0 /16s and 242 /24s
    Percentage of available APNIC address space announced:         76.6

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:                     85855
    Total ARIN prefixes after maximum aggregation:                52028
Prefixes being announced from the ARIN address blocks:            65720
    Unique aggregates announced from the ARIN address blocks:     23602
ARIN Region origin ASes present in the Internet Routing Table:     9743
ARIN Region origin ASes announcing only one prefix:                3530
ARIN Region transit ASes present in the Internet Routing Table:     957
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               235848704
    Equivalent to 14 /8s, 14 /16s and 196 /24s
    Percentage of available ARIN address space announced:          70.3

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, 70/7, 72/8, 198/7, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     28395
    Total RIPE prefixes after maximum aggregation:                19693
Prefixes being announced from the RIPE address blocks:            25162
    Unique aggregates announced from the RIPE address blocks:     16517
RIPE Region origin ASes present in the Internet Routing Table:     6065
RIPE Region origin ASes announcing only one prefix:                3248
RIPE Region transit ASes present in the Internet Routing Table:    1045
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          23
Number of RIPE addresses announced to Internet:               181163264
    Equivalent to 10 /8s, 204 /16s and 85 /24s
    Percentage of available RIPE address space announced:          63.5

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:                    6609
    Total LACNIC prefixes after maximum aggregation:               2367
Prefixes being announced from the LACNIC address blocks:           6470
    Unique aggregates announced from the LACNIC address blocks:    3997
LACNIC Region origin ASes present in the Internet Routing Table:    402
LACNIC Region origin ASes announcing only one prefix:               118
LACNIC Region transit ASes present in the Internet Routing Table:    79
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              16749568
    Equivalent to 0 /8s, 255 /16s and 148 /24s
    Percentage of available LACNIC address space announced:        49.9

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

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

Prefixes being announced by AfriNIC Region ASes:                   1254
    Total AfriNIC prefixes after maximum aggregation:               701
Prefixes being announced from the AfriNIC address blocks:           859
    Unique aggregates announced from the AfriNIC address blocks:    669
AfriNIC Region origin ASes present in the Internet Routing Table:    93
AfriNIC Region origin ASes announcing only one prefix:               21
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2072576
    Equivalent to 0 /8s, 31 /16s and 160 /24s
    Percentage of available AfriNIC address space announced:       12.4

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      863       4421         164   Data Communications Bureau
 1221      791       1182         568   Telstra Pty Ltd
 9583      553         47          40   Satyam Infoway Ltd.,
 4766      547       3408         268   Korea Internet Exchange for "
 4755      388        132          67   Videsh Sanchar Nigam Ltd. Aut
17676      387       5804          57   XTAGE CORPORATION
 9443      356         69          80   Primus Telecommunications
 2907      354       1857         328   SINET Japan
 9929      349        162          34   China Netcom Corp.
  703      322        350         247   UUNET
17557      317         23         155   Pakistan Telecom
 2764      283        272         231   connect.com.au pty ltd
 7474      270        268         201   Optus Communications Pty Ltd
 4802      233         28         141   Wantree Development
 9800      232        381          71   CHINA UNICOM
 9498      229         81          53   BHARTI BT INTERNET LTD.
 9942      229         72         123   COMindico Australia
 7563      228         48         165   Korea Internet Infrastructure
10036      217         20         198   C&M Communication Co. Ltd.
17488      213         13          13   Hathway IP Over Cable Interne

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1421       6632         983   AT&T WorldNet Services
  701     1231       8384         881   UUNET Technologies, Inc. 
  721     1039      21084         305   DLA Systems Automation Center
 1239      917       2879         605   Sprint 
 2386      851        531         612   AT&T Data Communications Serv
 6197      810        381         352   BellSouth Network Solutions, 
 4323      809        672         221   Time Warner Telecom
18566      754        208           6   Covad Communications 
  209      655       3427         507   Qwest 
 3356      637      10961         462   Level 3 Communications, LLC 
20115      592        461         316   Charter Communications 
 3561      549       2376         417   Cable & Wireless USA 
  852      520       1142         399   Telus Advanced Communications
 7843      477        724          89   Adelphia Corp. 
 7132      452       8290         384   SBC Internet Services
27364      445         36          19   Armstrong Cable Services 
 6198      440        378         204   BellSouth Network Solutions, 
 6478      439        775          99   AT&T Worldnet Services 
 5668      417         87          18   Century Telephone 
22909      415        881          59   Comcast Cable Corporation 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      633       2026         523   UUNET - Commercial IP service
 3320      303       2997         237   Deutsche Telekom AG
 3301      281       1100         272   TeliaNet Sweden
 8220      280        464         265   COLT Internet - International
21502      273         40           3   NUMERICABLE is a cabled netwo
 3300      257        167          82   AUCS Communications Services 
  680      251       2025         239   DFN-IP service G-WiN
 3246      220        478         216   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 1257      210        722         175   SWIPnet Swedish IP Network
 8708      202        116         186   Romania Data Systems S.A.
 5515      193        842         140   Sonera Solution Autonomous Sy
  786      176       1794         176   The JANET IP Service
 3215      163        972          78   France Telecom Transpac
 8866      160         20           7   Bulgarian Telecommunication C
  719      158        322         105   LANLINK autonomous system
 6746      158         46         128   Dynamic Network Technologies,
 3269      153       1297          69   TELECOM ITALIA
25186      148        154         104   France Telecom Transpac's Tra
 3303      130        611         127   Swisscom Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      347        139          80   ImpSat
 8151      309        471         135   UniNet S.A. de C.V. 
16814      212         13           7   NSS, S.A. 
11172      210         99          55   Servicios Alestra S.A de C.V 
 6147      191         94          20   Telefonica Del Peru 
11664      155         12          30   Keytech SA 
 7303      143         66          23   Telecom Argentina Stet-France
 6505      141         90          97   Global One Communicaoes Ltda 
 6503      125        148          84   AVANTEL, S.A. 
11992      103          9          31   Integrated Systems 
14117       98          6           4   Telefonica del Sur S.A. 
11556       97         48           3   Cable-Wireless Panama 
11311       86          8          23   Sinectis S.A. 
 6535       85          7          18   Chilesat Servicios  Empresari
13999       83         52           9   Mega Cable S.A. de C.V. 
10481       82         32           7   Prima S.A. 
 4270       78         17           8   Red de Interconexion Universi
 5639       77          8           8   Telecommunications Services o
15311       77         23          37   Telefonica Empresas 
14420       76          5          41   ANDINATEL S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      269        636         226   The Internet Solution 
 5536      111         16           4   Internet Egypt Network
 2018      102        297          98   Tertiary Education Network 
 2905       94        276          73   The Internetworking Company o
20928       56         16           1   Noor Advanced Technologies AS
24835       42         34           7   RAYA Telecom - Egypt
 9129       34          3           4   UUNET Kenya
 6713       30         38           9   Itissalat Al-MAGHRIB
 5713       28        141          25   Telkom SA Ltd 
 8524       25          1           4   AUCEGYPT Autonomous System
12455       22          4           3   Jambonet Autonomous system
16637       22         10          19   Johnnic e-Ventures 
10798       18          1          12   Standard Bank of South Africa
12258       18          3          12   Vodacom Internet Company 
 8452       17         20           5   TEDATA
21280       16          2           3   Swift Global Kenya Ltd.Is an 
 8346       15          7          14   SONATEL-AS Autonomous System
15706       15          4           2   Sudatel Internet Exchange Aut
15808       13          1           2   Communication Solutions Ltd i
17148       13          1           7   First National Bank 

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

  ASN   No of nets  Net Savings Description
18566       754         748      Covad Communications 
  721      1039         734      DLA Systems Automation Center
 4134       863         699      Data Communications Bureau
 4323       809         588      Time Warner Telecom
 9583       553         513      Satyam Infoway Ltd.,
 6197       810         458      BellSouth Network Solutions, 
27364       445         426      Armstrong Cable Services 
 5668       417         399      Century Telephone 
 7843       477         388      Adelphia Corp. 
22773       405         385      Cox Communications, Inc. Atla
22909       415         356      Comcast Cable Corporation 
  701      1231         350      UUNET Technologies, Inc. 
 6467       379         348      E.Spire Communications, Inc. 
 6478       439         340      AT&T Worldnet Services 
17676       387         330      XTAGE CORPORATION
 4755       388         321      Videsh Sanchar Nigam Ltd. Aut
 9929       349         315      China Netcom Corp.
 1239       917         312      Sprint 
 4355       392         293      EarthLink, Inc. 
 4766       547         279      Korea Internet Exchange for "

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
65512   PRIVATE       198.202.65.0/24        195       San Diego Supercompu
65512   PRIVATE       198.202.66.0/24        195       San Diego Supercompu
65512   PRIVATE       198.202.67.0/24        195       San Diego Supercompu
65512   PRIVATE       198.202.68.0/24        195       San Diego Supercompu
65512   PRIVATE       198.202.69.0/24        195       San Diego Supercompu
65512   PRIVATE       198.202.70.0/24        195       San Diego Supercompu
65512   PRIVATE       199.165.16.0/24        195       San Diego Supercompu
65512   PRIVATE       199.165.16.0/20        195       San Diego Supercompu
65512   PRIVATE       199.165.17.0/24        195       San Diego Supercompu
64512   PRIVATE       199.213.17.0/25      15296       Netera Alliance Inc.
64512   PRIVATE       199.213.17.128/25    15296       Netera Alliance Inc.
64512   PRIVATE       199.216.97.0/28      15296       Netera Alliance Inc.
65002   PRIVATE       212.115.225.0/24      8690       Comint Ltd
65002   PRIVATE       212.115.226.0/24      8690       Comint Ltd
65529   PRIVATE       216.21.199.0/24      14697       VDot.Net 
33507   UNALLOCATED   216.94.118.0/24        701       UUNET Technologies, 
65529   PRIVATE       216.152.237.0/24     14697       VDot.Net 
65000   PRIVATE       217.68.56.0/22       29263       HAAGnet, municipalit

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

Network            Origin AS  Description
132.0.0.0/10           721     DLA Systems Automation Center
137.0.0.0/13           721     DLA Systems Automation Center
158.0.0.0/13           721     DLA Systems Automation Center
189.186.184.0/24      4471     Michigan Internet Cooperative
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 WorldNet Services
192.136.79.0/24        719     LANLINK autonomous system
192.172.0.0/19         721     DLA Systems Automation Center
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        /8:19       /9:3       /10:7       /11:15      /12:61      
/13:140     /14:315     /15:557     /16:8162    /17:2282    /18:3977    
/19:9884    /20:10446   /21:8059    /22:11115   /23:12728   /24:82873   
/25:263     /26:228     /27:116     /28:58      /29:39      /30:121     
/31:0       /32:42      

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

  ASN   No of nets  Total ann.   Description
18566      739           754      Covad Communications 
 6197      658           810      BellSouth Network Solutions, 
 2386      614           851      AT&T Data Communications Serv
 7018      579          1421      AT&T WorldNet Services
27364      430           445      Armstrong Cable Services 
  702      389           633      UUNET - Commercial IP service
 9583      384           553      Satyam Infoway Ltd.,
 1239      368           917      Sprint 
 4766      367           547      Korea Internet Exchange for "
 5668      360           417      Century Telephone 
  701      358          1231      UUNET Technologies, Inc. 
 6198      321           440      BellSouth Network Solutions, 
 6467      289           379      E.Spire Communications, Inc. 
 6517      279           302      Yipes Communications, Inc. 
 9929      278           349      China Netcom Corp.
20115      271           592      Charter Communications 
13609      270           312      Choice One Communications Inc
21502      270           273      NUMERICABLE is a cabled netwo
 4323      259           809      Time Warner Telecom
11456      256           301      Carolina Online, Inc. 

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

   4:4         8:10       12:1437     13:1        15:5        16:2      
  17:3        20:5        24:756      32:71       33:2        38:84     
  40:55       44:3        47:2        52:3        55:1        56:3      
  57:23       60:3        61:644      62:507      63:1842     64:2483   
  65:2070     66:2477     67:461      68:537      69:806      70:42     
  72:10       80:525      81:570      82:359      83:208      84:59     
  85:3       128:115     129:165     130:88      131:191     132:29     
 134:185     135:30      136:187     137:78      138:191     139:36     
 140:222     141:107     142:132     143:120     144:164     145:43     
 146:282     147:94      148:350     149:111     150:93      151:62     
 152:129     153:68      154:2       155:130     156:62      157:70     
 158:135     159:161     160:59      161:73      162:379     163:84     
 164:218     165:170     166:122     167:221     168:350     169:124    
 170:314     171:9       189:1       192:5667    193:2964    194:2185   
 195:1550    196:584     198:3910    199:3316    200:3847    201:25     
 202:4935    203:5803    204:3576    205:2090    206:2316    207:2621   
 208:2101    209:3100    210:1516    211:650     212:1165    213:1232   
 214:225     215:31      216:3718    217:1073    218:179     219:84     
 220:290     221:67      222:21     

End of report