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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Tue 04 Apr, 2006

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

BGP routing table entries examined:                              185531
    Prefixes after maximum aggregation:                          102745
    Unique aggregates announced to Internet:                      90450
Total ASes present in the Internet Routing Table:                 21872
Origin-only ASes present in the Internet Routing Table:           19013
Origin ASes announcing only one prefix:                            9047
Transit ASes present in the Internet Routing Table:                2859
Transit-only ASes present in the Internet Routing Table:             67
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      20
Prefixes from unregistered ASNs in the Routing Table:                 6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1500025952
    Equivalent to 89 /8s, 104 /16s and 148 /24s
    Percentage of available address space announced:               40.5
    Percentage of allocated address space announced:               59.7
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       91107

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

Prefixes being announced by APNIC Region ASes:                    39006
    Total APNIC prefixes after maximum aggregation:               16348
Prefixes being announced from the APNIC address blocks:           36699
    Unique aggregates announced from the APNIC address blocks:    18012
APNIC Region origin ASes present in the Internet Routing Table:    2528
APNIC Region origin ASes announcing only one prefix:                719
APNIC Region transit ASes present in the Internet Routing Table:    388
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              219769056
    Equivalent to 13 /8s, 25 /16s and 104 /24s
    Percentage of available APNIC address space announced:         68.7

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:                     96969
    Total ARIN prefixes after maximum aggregation:                57279
Prefixes being announced from the ARIN address blocks:            76055
    Unique aggregates announced from the ARIN address blocks:     29020
ARIN Region origin ASes present in the Internet Routing Table:    10617
ARIN Region origin ASes announcing only one prefix:                3968
ARIN Region transit ASes present in the Internet Routing Table:     977
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          19
Number of ARIN addresses announced to Internet:               293464320
    Equivalent to 17 /8s, 125 /16s and 233 /24s
    Percentage of available ARIN address space announced:          72.9

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, 64/6, 68/7, 70/6, 74/7, 76/8,
                       198/7, 204/6, 208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     36818
    Total RIPE prefixes after maximum aggregation:                24648
Prefixes being announced from the RIPE address blocks:            33860
    Unique aggregates announced from the RIPE address blocks:     22847
RIPE Region origin ASes present in the Internet Routing Table:     7832
RIPE Region origin ASes announcing only one prefix:                4097
RIPE Region transit ASes present in the Internet Routing Table:    1301
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               243116672
    Equivalent to 14 /8s, 125 /16s and 170 /24s
    Percentage of available RIPE address space announced:          72.5

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, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   10629
    Total LACNIC prefixes after maximum aggregation:               3583
Prefixes being announced from the LACNIC address blocks:           8788
    Unique aggregates announced from the LACNIC address blocks:    5252
LACNIC Region origin ASes present in the Internet Routing Table:    681
LACNIC Region origin ASes announcing only one prefix:               220
LACNIC Region transit ASes present in the Internet Routing Table:   125
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              26244864
    Equivalent to 1 /8s, 144 /16s and 119 /24s
    Percentage of available LACNIC address space announced:        39.1

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:                   2100
    Total AfriNIC prefixes after maximum aggregation:               887
Prefixes being announced from the AfriNIC address blocks:          1437
    Unique aggregates announced from the AfriNIC address blocks:    913
AfriNIC Region origin ASes present in the Internet Routing Table:   149
AfriNIC Region origin ASes announcing only one prefix:               43
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              3967488
    Equivalent to 0 /8s, 60 /16s and 138 /24s
    Percentage of available AfriNIC address space announced:       11.8

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     1012       6919         214   CHINANET-BACKBONE
 4755      891        259          69   Videsh Sanchar Nigam Ltd. Aut
 9583      872        109          16   Sify Limited
 4766      678       3923         304   Korea Telecom (KIX)
 1221      623       1556         477   Telstra Pty Ltd
 9498      560        211          73   BHARTI BT INTERNET LTD.
 7545      531        108          71   TPG Internet Pty Ltd
17488      502         31           7   Hathway IP Over Cable Interne
17676      484       6997         107   Softbank BB Corp.
 9443      416         95          82   Primus Telecommunications
 4802      376         77         171   Wantree Development
 2907      336       1749         312   SINET Japan
17974      336         90          37   PT TELEKOMUNIKASI INDONESIA
18101      326         68          23   Reliance Infocom Ltd Internet
17557      321         27         165   Pakistan Telecom
17849      318         20         104   Telecommunications Technology
 9929      317        218          54   China Netcom Corp.
 7474      307        211         233   SingTel Optus Pty Ltd
 4780      281        226          16   Digital United Inc.
 9837      269         77         165   Powertel Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1514       6264         971   AT&T WorldNet Services
 4323     1251        715         249   Time Warner Telecom
  721     1008      21962         306   DLA Systems Automation Center
 6197     1008        614         476   BellSouth Network Solutions, 
  174      955       5783         902   Cogent Communications
  701      937       8048         773   UUNET Technologies, Inc. 
18566      925        272           8   Covad Communications 
 2386      870        521         663   AT&T Data Communications Serv
 1239      852       2804         603   Sprint 
19029      781        151         109   New Edge Networks 
  209      701       3607         544   Qwest 
20115      672        590         361   Charter Communications 
19262      665       1968         156   Verizon Global Networks 
22773      643       1480          40   Cox Communications, Inc.
11492      627         86          20   Cable One 
 7011      623        213         404   Citizens Utilities 
 6198      586        526         234   BellSouth Network Solutions, 
  852      584       1089         388   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      546        244          64   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      585       1951         458   UUNET - Commercial IP service
 3301      308       1071         292   TeliaNet Sweden
 3352      307       1564          31   Ibernet, Internet Access Netw
 8220      289        473         268   COLT Telecommunications
 3320      281       3476         233   Deutsche Telekom AG
  680      245       2025         242   DFN-IP service G-WiN
 3246      231        488         221   Song Networks
 6746      230         89         204   Dynamic Network Technologies,
 8708      215        275         200   Romania Data Systems S.A.
 8551      203        198          24   Bezeq International
24863      200         40           9   LINKdotNET AS number
 1257      198        711         173   SWIPnet Swedish IP Network
 3269      197       2086          76   TELECOM ITALIA
 3215      191       1598          89   France Telecom Transpac
 8866      174         37          14   Bulgarian Telecommunication C
 9121      174        931          26   TTnet Autonomous System
  786      171       1778         171   The JANET IP Service
 5400      168        329         137   BT Ignite European Backbone
 6830      167        765          35   UPC Distribution Services
 5515      161        839         120   Sonera Solution Autonomous Sy

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      596       1051         225   UniNet S.A. de C.V. 
22047      386        142          10   VTR PUNTO NET S.A. 
11172      319        110          82   Servicios Alestra S.A de C.V 
16814      280         18           7   NSS, S.A. 
14117      185         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      159         75          20   Telecom Argentina Stet-France
 6147      154        126          22   Telefonica Del Peru 
11556      132         80           4   Cable-Wireless Panama 
 5639      128         12           9   Telecommunications Services o
19169      123          8          32   Telconet 
21826      123         16          20   INTERCABLE 
 6503      122        149          75   AVANTEL, S.A. 
 6505      106         88          78   Global One Communicaoes Ltda 
23216      100         20           7   RAMtelecom Telecomunicaciones
18822       99          8          10   TELEFONICA MANQUEHUE 
 7315       96          6           3   Grupo Rey Moreno 
25620       96          6           3   COTAS LTDA 
 4270       94         17           9   Red de Interconexion Universi
14522       94         13           5   SatNet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      277        803         232   The Internet Solution 
 8452      167         60           7   TEDATA
 6713      145        135          11   Itissalat Al-MAGHRIB
15475      129         84           4   Nile Online
 2018      124        314         105   Tertiary Education Network 
 5536      121          8          18   Internet Egypt Network
24835      111         50           7   RAYA Telecom - Egypt
 2905       74        155          67   The Internetworking Company o
20928       57         16           2   Noor Advanced Technologies AS
12455       46          6           3   Jambonet Autonomous system
 5713       39        294          35   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
33774       30          7          21   AS Number for Telecom Algeria
23889       26          8          11   MAURITIUS TELECOM
 8524       24          1           4   AUCEGYPT Autonomous System
16637       24         14          22   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
 8346       20         13          17   SONATEL-AS Autonomous System
21280       20          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      1251        1002      Time Warner Telecom
18566       925         917      Covad Communications 
 9583       872         856      Sify Limited
 4755       891         822      Videsh Sanchar Nigam Ltd. Aut
 4134      1012         798      CHINANET-BACKBONE
  721      1008         702      DLA Systems Automation Center
19029       781         672      New Edge Networks 
11492       627         607      Cable One 
22773       643         603      Cox Communications, Inc.
 6197      1008         532      BellSouth Network Solutions, 
19262       665         509      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       532         502      CenturyTel Internet Holdings,
17488       502         495      Hathway IP Over Cable Interne
 9498       560         487      BHARTI BT INTERNET LTD.
  855       546         482      Canadian Research Network 
 7545       531         460      TPG Internet Pty Ltd
 7757       474         455      AT&T Broadband 
 3602       540         431      Sprint Canada, Inc. 
17676       484         377      Softbank BB Corp.

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

Bad AS  Designation  Network              Transit AS  Description
65289   PRIVATE       148.164.1.0/24        4755       Videsh Sanchar Nigam
65005   PRIVATE       159.153.148.0/22     24989       IX Europe Frankfurt 
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com
24808   UNALLOCATED   217.78.74.0/23       12491       IPPlanet
24808   UNALLOCATED   217.78.76.0/23       12491       IPPlanet
65412   PRIVATE       221.123.128.0/20     24405       Beijing CJWX Communi

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 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
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        /8:17       /9:9       /10:8       /11:27      /12:88      
/13:199     /14:357     /15:691     /16:8771    /17:3155    /18:5178    
/19:11468   /20:12914   /21:11184   /22:14279   /23:15408   /24:100766  
/25:346     /26:249     /27:219     /28:63      /29:68      /30:34      
/31:0       /32:33      

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

  ASN   No of nets  Total ann.   Description
18566      908           925      Covad Communications 
 7018      804          1514      AT&T WorldNet Services
 6197      797          1008      BellSouth Network Solutions, 
19029      713           781      New Edge Networks 
 9583      693           872      Sify Limited
11492      618           627      Cable One 
 4323      603          1251      Time Warner Telecom
 2386      595           870      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      535           623      Citizens Utilities 
 4766      487           678      Korea Telecom (KIX)
 7757      456           474      AT&T Broadband 
 6198      441           586      BellSouth Network Solutions, 
  855      420           546      Canadian Research Network 
 5668      412           532      CenturyTel Internet Holdings,
 1239      377           852      Sprint 
  702      366           585      UUNET - Commercial IP service
15270      365           395      PaeTec.net -a division of Pae
 6517      349           378      Yipes Communications, Inc. 
22773      337           643      Cox Communications, Inc.

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

   4:3         8:40       12:1623     13:1        15:11       16:3      
  17:3        18:4        20:43       24:881      25:1        30:2      
  32:67       38:208      40:53       44:3        45:2        47:6      
  52:4        55:1        56:3        57:33       58:152      59:190    
  60:179      61:839      62:820      63:1915     64:3120     65:2231   
  66:3094     67:616      68:700      69:1433     70:321      71:82     
  72:661      73:23       74:28       80:759      81:615      82:547    
  83:370      84:375      85:510      86:338      87:286      88:50     
  89:112     124:200     125:282     128:154     129:177     130:107    
 131:319     132:33      133:8       134:150     135:47      136:177    
 137:69      138:199     139:74      140:467     141:134     142:393    
 143:161     144:230     145:40      146:322     147:133     148:338    
 149:190     150:113     151:80      152:65      153:107     154:6      
 155:196     156:99      157:120     158:165     159:171     160:86     
 161:69      162:252     163:146     164:179     165:183     166:165    
 167:242     168:479     169:134     170:329     171:12      172:1      
 183:1       190:51      192:5775    193:3398    194:2557    195:1792   
 196:836     198:3876    199:3261    200:4258    201:673     202:6537   
 203:6904    204:3935    205:2082    206:2426    207:2927    208:2040   
 209:3697    210:1929    211:737     212:1240    213:1443    214:335    
 215:41      216:4089    217:1174    218:239     219:179     220:654    
 221:354     222:162    

End of report