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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Wed 11 Jan, 2006

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

BGP routing table entries examined:                              177967
    Prefixes after maximum aggregation:                          100001
    Unique aggregates announced to Internet:                      86509
Total ASes present in the Internet Routing Table:                 21288
Origin-only ASes present in the Internet Routing Table:           18519
Origin ASes announcing only one prefix:                            8779
Transit ASes present in the Internet Routing Table:                2769
Transit-only ASes present in the Internet Routing Table:             69
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      25
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:                   1478648064
    Equivalent to 88 /8s, 34 /16s and 97 /24s
    Percentage of available address space announced:               39.9
    Percentage of allocated address space announced:               58.9
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       85849

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

Prefixes being announced by APNIC Region ASes:                    37367
    Total APNIC prefixes after maximum aggregation:               15830
Prefixes being announced from the APNIC address blocks:           35153
    Unique aggregates announced from the APNIC address blocks:    17231
APNIC Region origin ASes present in the Internet Routing Table:    2456
APNIC Region origin ASes announcing only one prefix:                695
APNIC Region transit ASes present in the Internet Routing Table:    377
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              210117824
    Equivalent to 12 /8s, 134 /16s and 36 /24s
    Percentage of available APNIC address space announced:         65.7

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:                     93704
    Total ARIN prefixes after maximum aggregation:                56264
Prefixes being announced from the ARIN address blocks:            73050
    Unique aggregates announced from the ARIN address blocks:     27990
ARIN Region origin ASes present in the Internet Routing Table:    10417
ARIN Region origin ASes announcing only one prefix:                3873
ARIN Region transit ASes present in the Internet Routing Table:     963
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               281947136
    Equivalent to 16 /8s, 206 /16s and 44 /24s
    Percentage of available ARIN address space announced:          70.0

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:                     34876
    Total RIPE prefixes after maximum aggregation:                23632
Prefixes being announced from the RIPE address blocks:            31867
    Unique aggregates announced from the RIPE address blocks:     21433
RIPE Region origin ASes present in the Internet Routing Table:     7538
RIPE Region origin ASes announcing only one prefix:                3952
RIPE Region transit ASes present in the Internet Routing Table:    1237
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          25
Number of RIPE addresses announced to Internet:               229320064
    Equivalent to 13 /8s, 171 /16s and 37 /24s
    Percentage of available RIPE address space announced:          68.3

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:                   10163
    Total LACNIC prefixes after maximum aggregation:               3413
Prefixes being announced from the LACNIC address blocks:           8341
    Unique aggregates announced from the LACNIC address blocks:    4824
LACNIC Region origin ASes present in the Internet Routing Table:    662
LACNIC Region origin ASes announcing only one prefix:               212
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:                        22
Number of LACNIC addresses announced to Internet:              23565056
    Equivalent to 1 /8s, 103 /16s and 147 /24s
    Percentage of available LACNIC address space announced:        35.1

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:                   1851
    Total AfriNIC prefixes after maximum aggregation:               862
Prefixes being announced from the AfriNIC address blocks:          1212
    Unique aggregates announced from the AfriNIC address blocks:    857
AfriNIC Region origin ASes present in the Internet Routing Table:   145
AfriNIC Region origin ASes announcing only one prefix:               47
AfriNIC Region transit ASes present in the Internet Routing Table:   26
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2972672
    Equivalent to 0 /8s, 45 /16s and 92 /24s
    Percentage of available AfriNIC address space announced:        8.9

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      996       6450         206   CHINANET-BACKBONE
 9583      827         77          12   Sify Limited
 4755      769        258          64   Videsh Sanchar Nigam Ltd. Aut
 4766      722       3930         299   Korea Telecom (KIX)
 1221      670       1364         476   Telstra Pty Ltd
 7545      514        108          70   TPG Internet Pty Ltd
 9498      487        211          69   BHARTI BT INTERNET LTD.
17676      477       6885         101   Softbank BB Corp.
17488      436         26           9   Hathway IP Over Cable Interne
 9443      399         89          85   Primus Telecommunications
 4802      354         74         160   Wantree Development
 2907      338       1763         315   SINET Japan
 9929      332        217          50   China Netcom Corp.
 7474      329        227         227   SingTel Optus Pty Ltd
18101      324         68          23   Reliance Infocom Ltd Internet
17557      308         24         161   Pakistan Telecom
17974      301         72          31   PT TELEKOMUNIKASI INDONESIA
 4780      283        226          16   Digital United Inc.
 9837      270         78         169   Powertel Ltd
 9394      260        690           7   CHINA RAILWAY Internet(CRNET)

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1456       6312         948   AT&T WorldNet Services
 4323     1202        723         235   Time Warner Telecom
  174     1042       5825         960   Cogent Communications
  721     1031      21938         309   DLA Systems Automation Center
 6197      966        434         508   BellSouth Network Solutions, 
  701      961       8082         806   UUNET Technologies, Inc. 
 2386      914        517         686   AT&T Data Communications Serv
18566      890        272           8   Covad Communications 
 1239      845       2805         600   Sprint 
  209      659       3606         527   Qwest 
20115      657        537         339   Charter Communications 
11492      640         89          12   Cable One 
22773      602       1478          33   Cox Communications, Inc.
19262      593       1707         146   Verizon Global Networks 
  852      570       1092         379   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      561        243          65   Canadian Research Network 
 6478      526       1448         289   AT&T Worldnet Services 
 3602      523        127         106   Sprint Canada, Inc. 
 3356      519      10617         399   Level 3 Communications, LLC 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      590       1954         468   UUNET - Commercial IP service
 3301      303       1071         289   TeliaNet Sweden
 3320      286       3486         240   Deutsche Telekom AG
 8220      274        474         268   COLT Telecommunications
  680      244       2024         238   DFN-IP service G-WiN
 3246      229        487         218   Song Networks
 8708      222        274         206   Romania Data Systems S.A.
 6746      207         52         179   Dynamic Network Technologies,
 1257      190        712         170   SWIPnet Swedish IP Network
 3269      184       1893          69   TELECOM ITALIA
 5515      180        840         127   Sonera Solution Autonomous Sy
  786      173       1794         173   The JANET IP Service
 8866      172         37          11   Bulgarian Telecommunication C
 5400      166        328         135   BT Ignite European Backbone
24863      166         38           9   LINKdotNET AS number
 3215      163       1334          80   France Telecom Transpac
 6830      162        669          33   UPC Distribution Services
 3300      159        169          90   AUCS Communications Services 
12479      158        322           5   Uni2 Autonomous System
25186      150        211         105   France Telecom Transpac's Tra

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      543        792         212   UniNet S.A. de C.V. 
22047      380        141          43   VTR PUNTO NET S.A. 
11172      296        109          77   Servicios Alestra S.A de C.V 
16814      294         18           7   NSS, S.A. 
14117      184         11           6   Telefonica del Sur S.A. 
13999      175         52           9   Mega Cable S.A. de C.V. 
 7303      153         73          18   Telecom Argentina Stet-France
 6147      150        118          21   Telefonica Del Peru 
11556      130         64           3   Cable-Wireless Panama 
19169      126          8          29   Telconet 
10481      121         48           8   Prima S.A. 
 6503      115        148          76   AVANTEL, S.A. 
21826      113         14          19   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      107         88          80   Global One Communicaoes Ltda 
11311      101          8          14   Sinectis S.A. 
18822       99          8          10   TELEFONICA MANQUEHUE 
14522       97         12           8   SatNet S.A. 
 7315       96          6           3   Grupo Rey Moreno 
 4270       93         17           9   Red de Interconexion Universi

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      273        812         230   The Internet Solution 
 8452      141         60           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
15475      101         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
 6713       71         71          10   Itissalat Al-MAGHRIB
24835       67         34           6   RAYA Telecom - Egypt
20928       61         16           2   Noor Advanced Technologies AS
 5713       39        167          35   Telkom SA Ltd 
33774       35          5          26   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
23889       25          7          10   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
21280       23          4           4   Swift Global Kenya Ltd.Is an 
10798       22          1          13   Standard Bank of South Africa
16637       22         10          20   Johnnic e-Ventures 
12455       19          6           5   Jambonet Autonomous system
12258       17          3          11   Vodacom Internet Company 
15808       17          2           2   Communication Solutions Ltd i

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

  ASN   No of nets  Net Savings Description
 4323      1202         967      Time Warner Telecom
18566       890         882      Covad Communications 
 9583       827         815      Sify Limited
 4134       996         790      CHINANET-BACKBONE
  721      1031         722      DLA Systems Automation Center
 4755       769         705      Videsh Sanchar Nigam Ltd. Aut
11492       640         628      Cable One 
22773       602         569      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       561         496      Canadian Research Network 
 5668       511         487      CenturyTel Internet Holdings,
 6197       966         458      BellSouth Network Solutions, 
19262       593         447      Verizon Global Networks 
 7545       514         444      TPG Internet Pty Ltd
17488       436         427      Hathway IP Over Cable Interne
 4766       722         423      Korea Telecom (KIX)
 9498       487         418      BHARTI BT INTERNET LTD.
 3602       523         417      Sprint Canada, Inc. 
17676       477         376      Softbank BB Corp.
 6467       403         356      E.Spire Communications, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
38976   UNALLOCATED   62.192.224.0/19      21166       Satgate autonomous s
38976   UNALLOCATED   62.192.232.0/24      21166       Satgate autonomous s
38972   UNALLOCATED   80.251.144.0/21       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.151.0/24       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.152.0/23      28947       CJSC InT, Ekaterinbu
29544   UNALLOCATED   82.151.64.0/19       12956       Telefonica Data Auto

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
192.43.230.0/24       7575     Australian Academic and Rease
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        /8:18       /9:5       /10:8       /11:20      /12:87      
/13:196     /14:346     /15:673     /16:8639    /17:2947    /18:4967    
/19:11202   /20:12316   /21:10513   /22:13613   /23:14763   /24:96678   
/25:345     /26:251     /27:198     /28:62      /29:26      /30:54      
/31:3       /32:37      

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

  ASN   No of nets  Total ann.   Description
18566      873           890      Covad Communications 
 6197      781           966      BellSouth Network Solutions, 
 7018      728          1456      AT&T WorldNet Services
 9583      650           827      Sify Limited
 2386      637           914      AT&T Data Communications Serv
11492      631           640      Cable One 
 4323      577          1202      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      522           722      Korea Telecom (KIX)
  855      433           561      Canadian Research Network 
 5668      400           511      CenturyTel Internet Holdings,
 7011      399           465      Citizens Utilities 
  702      374           590      UUNET - Commercial IP service
 1239      365           845      Sprint 
 6198      356           499      BellSouth Network Solutions, 
 6517      331           358      Yipes Communications, Inc. 
15270      330           357      PaeTec.net -a division of Pae
22773      310           602      Cox Communications, Inc.
13609      290           332      Choice One Communications Inc
  701      276           961      UUNET Technologies, Inc. 

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

   4:3         8:43       12:1630     13:1        15:11       16:3      
  17:3        18:4        20:42       24:716      25:1        30:2      
  32:69       38:185      40:54       44:3        47:3        52:4      
  55:1        56:3        57:34       58:112      59:149      60:176    
  61:816      62:779      63:1891     64:2940     65:2145     66:2999   
  67:589      68:696      69:1345     70:267      71:41       72:562    
  73:16       80:690      81:593      82:498      83:350      84:337    
  85:404      86:252      87:127      88:16      125:146     128:149    
 129:170     130:101     131:307     132:33      133:1       134:151    
 135:45      136:170     137:65      138:179     139:92      140:446    
 141:136     142:402     143:146     144:228     145:39      146:311    
 147:134     148:348     149:187     150:113     151:71      152:115    
 153:98      154:6       155:183     156:90      157:119     158:152    
 159:173     160:87      161:68      162:247     163:174     164:167    
 165:170     166:147     167:237     168:473     169:141     170:309    
 171:12      192:5753    193:3348    194:2459    195:1706    196:738    
 198:3894    199:3270    200:4173    201:553     202:6389    203:6668   
 204:3822    205:2086    206:2414    207:2915    208:2015    209:3449   
 210:1837    211:794     212:1240    213:1403    214:317     215:40     
 216:3827    217:1149    218:232     219:134     220:638     221:331    
 222:141    

End of report