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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Wed 03 May, 2006

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

BGP routing table entries examined:                              187490
    Prefixes after maximum aggregation:                          103495
    Unique aggregates announced to Internet:                      91647
Total ASes present in the Internet Routing Table:                 22055
Origin-only ASes present in the Internet Routing Table:           19188
Origin ASes announcing only one prefix:                            9146
Transit ASes present in the Internet Routing Table:                2867
Transit-only ASes present in the Internet Routing Table:             67
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      26
    Max AS path prepend of ASN (34527)                               16
Prefixes from unregistered ASNs in the Routing Table:                20
    Unregistered ASNs in the Routing Table:                           7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             10
Number of addresses announced to Internet:                   1530610336
    Equivalent to 91 /8s, 59 /16s and 66 /24s
    Percentage of available address space announced:               41.3
    Percentage of allocated address space announced:               59.7
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       92301

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

Prefixes being announced by APNIC Region ASes:                    39628
    Total APNIC prefixes after maximum aggregation:               16509
Prefixes being announced from the APNIC address blocks:           37346
    Unique aggregates announced from the APNIC address blocks:    18219
APNIC Region origin ASes present in the Internet Routing Table:    2546
APNIC Region origin ASes announcing only one prefix:                719
APNIC Region transit ASes present in the Internet Routing Table:    390
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              224874720
    Equivalent to 13 /8s, 103 /16s and 80 /24s
    Percentage of available APNIC address space announced:         70.3

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911
APNIC Address Blocks   58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
                       210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     96953
    Total ARIN prefixes after maximum aggregation:                57467
Prefixes being announced from the ARIN address blocks:            71148
    Unique aggregates announced from the ARIN address blocks:     26271
ARIN Region origin ASes present in the Internet Routing Table:    10663
ARIN Region origin ASes announcing only one prefix:                4004
ARIN Region transit ASes present in the Internet Routing Table:     984
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               289789696
    Equivalent to 17 /8s, 69 /16s and 215 /24s
    Percentage of available ARIN address space announced:          75.1

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  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, 29696-30719, 31744-33791
                       35840-36863
ARIN Address Blocks    24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     37481
    Total RIPE prefixes after maximum aggregation:                24997
Prefixes being announced from the RIPE address blocks:            34509
    Unique aggregates announced from the RIPE address blocks:     23126
RIPE Region origin ASes present in the Internet Routing Table:     7940
RIPE Region origin ASes announcing only one prefix:                4154
RIPE Region transit ASes present in the Internet Routing Table:    1305
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               247348928
    Equivalent to 14 /8s, 190 /16s and 62 /24s
    Percentage of available RIPE address space announced:          77.6

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks    62/8, 80/5, 88/6, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   11266
    Total LACNIC prefixes after maximum aggregation:               3625
Prefixes being announced from the LACNIC address blocks:           9362
    Unique aggregates announced from the LACNIC address blocks:    5420
LACNIC Region origin ASes present in the Internet Routing Table:    683
LACNIC Region origin ASes announcing only one prefix:               222
LACNIC Region transit ASes present in the Internet Routing Table:   128
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC addresses announced to Internet:              26758400
    Equivalent to 1 /8s, 152 /16s and 77 /24s
    Percentage of available LACNIC address space announced:        39.9

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  189/8, 190/8, 200/7

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

Prefixes being announced by AfriNIC Region ASes:                   2156
    Total AfriNIC prefixes after maximum aggregation:               897
Prefixes being announced from the AfriNIC address blocks:          1478
    Unique aggregates announced from the AfriNIC address blocks:    950
AfriNIC Region origin ASes present in the Internet Routing Table:   156
AfriNIC Region origin ASes announcing only one prefix:               47
AfriNIC Region transit ASes present in the Internet Routing Table:   27
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC addresses announced to Internet:              4062208
    Equivalent to 0 /8s, 61 /16s and 252 /24s
    Percentage of available AfriNIC address space announced:       12.1

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134     1129       7088         221   CHINANET-BACKBONE
 4755      902        258          72   Videsh Sanchar Nigam Ltd. Aut
 9583      898        109          16   Sify Limited
 4766      681       4436         308   Korea Telecom (KIX)
 1221      615       1556         470   Telstra Pty Ltd
 9498      566        211          67   BHARTI BT INTERNET LTD.
 7545      527        108          69   TPG Internet Pty Ltd
17488      501         31           7   Hathway IP Over Cable Interne
17676      485       7013         107   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
 4802      382         81         176   Wantree Development
17849      347         22         113   Telecommunications Technology
 2907      336       1749         312   SINET Japan
18101      336         69          24   Reliance Infocom Ltd Internet
17557      325         27         157   Pakistan Telecom
 9929      324        221          57   China Netcom Corp.
17974      308        120          29   PT TELEKOMUNIKASI INDONESIA
 7474      298        211         228   SingTel Optus Pty Ltd
 9800      273        410          67   CHINA UNICOM
 9837      265         78         158   Powertel Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1509       6256         965   AT&T WorldNet Services
 4323     1289        733         252   Time Warner Telecom
 6197     1007        618         472   BellSouth Network Solutions, 
  721     1004      21945         305   DLA Systems Automation Center
  174      962       5787         909   Cogent Communications
19029      952        151         111   New Edge Networks 
18566      937        272           8   Covad Communications 
  701      926       8012         768   UUNET Technologies, Inc. 
 2386      875        521         674   AT&T Data Communications Serv
 1239      820       2790         596   Sprint 
  209      714       3595         559   Qwest 
19262      691       2055         162   Verizon Global Networks 
20115      685        599         367   Charter Communications 
22773      657       1737          44   Cox Communications, Inc.
 7011      633        217         413   Citizens Utilities 
11492      628         86          21   Cable One 
  852      582       1085         384   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      550        244          63   Canadian Research Network 
 3602      538        127         109   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      580       1951         456   UUNET - Commercial IP service
 3352      310       1612          29   Ibernet, Internet Access Netw
 3301      307       1071         292   TeliaNet Sweden
 3320      289       3989         239   Deutsche Telekom AG
 8220      289        474         267   COLT Telecommunications
  680      245       2025         242   DFN-IP service G-WiN
 3246      233        504         223   Song Networks
 6746      226         88         201   Dynamic Network Technologies,
 8708      218        276         201   Romania Data Systems S.A.
24863      207         40           9   LINKdotNET AS number
 8551      202        198          24   Bezeq International
 3269      198       2134          72   TELECOM ITALIA
 1257      196        742         170   SWIPnet Swedish IP Network
 3215      196       1662          93   France Telecom Transpac
 8866      180         37          16   Bulgarian Telecommunication C
  786      171       1778         171   The JANET IP Service
 5400      171        363         140   BT Ignite European Backbone
 6830      169        765          35   UPC Distribution Services
 9121      169        931          27   TTnet Autonomous System
30890      164         15          63   SC Kappa Invexim SRL

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      697       1067         224   UniNet S.A. de C.V. 
22047      408        158          11   VTR PUNTO NET S.A. 
11172      323        110          84   Servicios Alestra S.A de C.V 
16814      316         20           8   NSS, S.A. 
 6147      262        126          22   Telefonica Del Peru 
14117      205         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      160         75          18   Telecom Argentina Stet-France
21826      135         16          21   INTERCABLE 
 5639      132         12           9   Telecommunications Services o
11556      132         80           4   Cable-Wireless Panama 
 6503      130        149          79   AVANTEL, S.A. 
19169      127          8          20   Telconet 
14259      114         10          12   GTD Internet S.A. 
23216      109         21           9   RAMtelecom Telecomunicaciones
 6505      106         88          78   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
19429      103         58          44   E.T.B. 
14522       99         13           7   SatNet S.A. 
14571       97         25           3   Internet Group do Brasil 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        803         233   The Internet Solution 
 8452      170         60           7   TEDATA
 6713      145        135          11   Itissalat Al-MAGHRIB
 2018      123        314         104   Tertiary Education Network 
 5536      120          8          22   Internet Egypt Network
24835      117         50           7   RAYA Telecom - Egypt
33783      105          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
20928       57         16           2   Noor Advanced Technologies AS
15475       54         84           4   Nile Online
12455       53          6           3   Jambonet Autonomous system
 5713       39        294          35   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
23889       31          8          11   MAURITIUS TELECOM
33774       30          7          20   AS Number for Telecom Algeria
 8524       24          1           4   AUCEGYPT Autonomous System
16637       24         14          22   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
21280       22          5           5   Swift Global Kenya Ltd.Is an 
 2561       19          6           2   Egyptian Universities Network

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

  ASN   No of nets  Net Savings Description
 4323      1289        1037      Time Warner Telecom
18566       937         929      Covad Communications 
 4134      1129         908      CHINANET-BACKBONE
 9583       898         882      Sify Limited
19029       952         841      New Edge Networks 
 4755       902         830      Videsh Sanchar Nigam Ltd. Aut
  721      1004         699      DLA Systems Automation Center
22773       657         613      Cox Communications, Inc.
11492       628         607      Cable One 
 6197      1007         535      BellSouth Network Solutions, 
19262       691         529      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       531         503      CenturyTel Internet Holdings,
 9498       566         499      BHARTI BT INTERNET LTD.
17488       501         494      Hathway IP Over Cable Interne
  855       550         487      Canadian Research Network 
 8151       697         473      UniNet S.A. de C.V. 
 7545       527         458      TPG Internet Pty Ltd
 3602       538         429      Sprint Canada, Inc. 
22047       408         397      VTR PUNTO NET S.A. 

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

Bad AS  Designation  Network              Transit AS  Description
65241   PRIVATE       65.90.71.0/24        10794       Bank of America 
36727   UNALLOCATED   74.128.0.0/15         1239       Sprint 
36727   UNALLOCATED   74.128.0.0/13         1239       Sprint 
36727   UNALLOCATED   74.130.0.0/16         1239       Sprint 
36727   UNALLOCATED   74.131.0.0/16         1239       Sprint 
36727   UNALLOCATED   74.133.128.0/18       1239       Sprint 
36727   UNALLOCATED   74.134.0.0/15         1239       Sprint 
36727   UNALLOCATED   74.136.0.0/16         1239       Sprint 
36727   UNALLOCATED   74.136.0.0/15         1239       Sprint 
36727   UNALLOCATED   74.137.0.0/18         1239       Sprint 
36727   UNALLOCATED   74.137.64.0/20        1239       Sprint 
36727   UNALLOCATED   74.137.80.0/20        1239       Sprint 
36727   UNALLOCATED   74.137.96.0/20        1239       Sprint 
36727   UNALLOCATED   74.137.112.0/20       1239       Sprint 
36727   UNALLOCATED   74.137.128.0/17       1239       Sprint 
65000   PRIVATE       85.90.108.0/22        8570       Public Data Network 
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com
65280   PRIVATE       203.197.161.0/24      4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.14.0/24       4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.21.0/24       4755       Videsh Sanchar Nigam

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
183.206.196.0/24      2188     FR-RENATER-ASTER
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.172.0.0/19         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       /9:9       /10:9       /11:28      /12:89      
/13:200     /14:361     /15:707     /16:8801    /17:3195    /18:5278    
/19:11613   /20:13097   /21:11321   /22:14496   /23:15590   /24:101600  
/25:388     /26:275     /27:218     /28:62      /29:70      /30:35      
/31:0       /32:30      

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

  ASN   No of nets  Total ann.   Description
18566      920           937      Covad Communications 
19029      883           952      New Edge Networks 
 7018      801          1509      AT&T WorldNet Services
 6197      796          1007      BellSouth Network Solutions, 
 9583      726           898      Sify Limited
 4323      632          1289      Time Warner Telecom
11492      619           628      Cable One 
 2386      595           875      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      542           633      Citizens Utilities 
 4766      491           681      Korea Telecom (KIX)
  855      425           550      Canadian Research Network 
 5668      412           531      CenturyTel Internet Holdings,
15270      379           410      PaeTec.net -a division of Pae
 1239      371           820      Sprint 
  702      359           580      UUNET - Commercial IP service
 6198      356           505      BellSouth Network Solutions, 
 6517      356           386      Yipes Communications, Inc. 
17849      347           347      Telecommunications Technology
22773      344           657      Cox Communications, Inc.

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

   4:2         8:43       12:1630     13:1        15:12       16:3      
  17:3        18:4        20:43       24:740      25:1        30:2      
  32:58       38:210      40:54       41:1        44:3        47:6      
  52:4        55:1        56:3        57:31       58:149      59:188    
  60:178      61:832      62:771      63:1913     64:3158     65:2202   
  66:2984     67:598      68:660      69:1469     70:328      71:77     
  72:687      73:23       74:31       80:794      81:633      82:601    
  83:383      84:382      85:526      86:385      87:327      88:77     
  89:161     124:261     125:381     128:162     129:181     130:108    
 131:320     132:32      133:8       134:158     135:46      136:178    
 137:72      138:198     139:67      140:465     141:133     142:384    
 143:163     144:225     145:43      146:324     147:136     148:330    
 149:184     150:116     151:81      152:64      153:107     154:6      
 155:196     156:97      157:142     158:168     159:171     160:86     
 161:72      162:258     163:145     164:180     165:194     166:163    
 167:246     168:481     169:133     170:328     171:13      183:1      
 190:59      192:5737    193:3361    194:2599    195:1837    196:862    
 198:3895    199:3234    200:4451    201:913     202:6605    203:6878   
 204:3875    205:2076    206:2401    207:2937    208:2063    209:3789   
 210:1924    211:693     212:1264    213:1470    214:352     215:41     
 216:4116    217:1171    218:276     219:182     220:655     221:358    
 222:147    

End of report