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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Fri 05 Jan, 2007

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

BGP routing table entries examined:                              206770
    Prefixes after maximum aggregation:                          112041
    Unique aggregates announced to Internet:                     100826
Total ASes present in the Internet Routing Table:                 24040
Origin-only ASes present in the Internet Routing Table:           20955
Origin ASes announcing only one prefix:                           10130
Transit ASes present in the Internet Routing Table:                3085
Transit-only ASes present in the Internet Routing Table:             76
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      32
    Max AS path prepend of ASN (20858)                               18
Prefixes from unregistered ASNs in the Routing Table:                 1
    Unregistered ASNs in the Routing Table:                           2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1652903500
    Equivalent to 98 /8s, 133 /16s and 78 /24s
    Percentage of available address space announced:               44.6
    Percentage of allocated address space announced:               63.3
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:      105142

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

Prefixes being announced by APNIC Region ASes:                    45880
    Total APNIC prefixes after maximum aggregation:               18587
Prefixes being announced from the APNIC address blocks:           43449
    Unique aggregates announced from the APNIC address blocks:    19048
APNIC Region origin ASes present in the Internet Routing Table:    2811
APNIC Region origin ASes announcing only one prefix:                799
APNIC Region transit ASes present in the Internet Routing Table:    419
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              274548192
    Equivalent to 16 /8s, 93 /16s and 69 /24s
    Percentage of available APNIC address space announced:         85.8

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:                    102154
    Total ARIN prefixes after maximum aggregation:                60505
Prefixes being announced from the ARIN address blocks:            75341
    Unique aggregates announced from the ARIN address blocks:     28715
ARIN Region origin ASes present in the Internet Routing Table:    11250
ARIN Region origin ASes announcing only one prefix:                4301
ARIN Region transit ASes present in the Internet Routing Table:    1038
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          21
Number of ARIN addresses announced to Internet:               311633024
    Equivalent to 18 /8s, 147 /16s and 36 /24s
    Percentage of available ARIN address space announced:          68.8

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, 39936-40959
ARIN Address Blocks    24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     42702
    Total RIPE prefixes after maximum aggregation:                28010
Prefixes being announced from the RIPE address blocks:            39482
    Unique aggregates announced from the RIPE address blocks:     26413
RIPE Region origin ASes present in the Internet Routing Table:     8980
RIPE Region origin ASes announcing only one prefix:                4728
RIPE Region transit ASes present in the Internet Routing Table:    1434
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE addresses announced to Internet:               283459492
    Equivalent to 16 /8s, 229 /16s and 63 /24s
    Percentage of available RIPE address space announced:          76.8

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
                       40960-43007
RIPE Address Blocks    62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   13488
    Total LACNIC prefixes after maximum aggregation:               3992
Prefixes being announced from the LACNIC address blocks:          11568
    Unique aggregates announced from the LACNIC address blocks:    7125
LACNIC Region origin ASes present in the Internet Routing Table:    753
LACNIC Region origin ASes announcing only one prefix:               250
LACNIC Region transit ASes present in the Internet Routing Table:   131
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              35995392
    Equivalent to 2 /8s, 37 /16s and 63 /24s
    Percentage of available LACNIC address space announced:        53.6

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:                   2545
    Total AfriNIC prefixes after maximum aggregation:               947
Prefixes being announced from the AfriNIC address blocks:          1793
    Unique aggregates announced from the AfriNIC address blocks:   1128
AfriNIC Region origin ASes present in the Internet Routing Table:   170
AfriNIC Region origin ASes announcing only one prefix:               52
AfriNIC Region transit ASes present in the Internet Routing Table:   32
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              5341184
    Equivalent to 0 /8s, 81 /16s and 128 /24s
    Percentage of available AfriNIC address space announced:       15.9

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     1258       8641         262   CHINANET-BACKBONE
 4755     1043        384          68   Videsh Sanchar Nigam Ltd. Aut
 9583     1032        109          16   Sify Limited
 9498      902        467          64   BHARTI BT INTERNET LTD.
23577      770         34         699   KRNIC
 4766      759       4946         312   Korea Telecom (KIX)
 1221      577       1714         447   Telstra Pty Ltd
17488      565         35          21   Hathway IP Over Cable Interne
 7545      555        126          73   TPG Internet Pty Ltd
17676      503      10935          66   Softbank BB Corp.
18101      491         87          28   Reliance Infocom Ltd Internet
 9443      442        111          74   Primus Telecommunications
 9942      439         81         131   COMindico Australia
 4812      437        759          69   China Telecom (Shanghai)
17849      414         36         126   Telecommunications Technology
17557      365         35         169   Pakistan Telecom
17974      362        129          12   PT TELEKOMUNIKASI INDONESIA
 4802      360         86         150   Wantree Development
 2907      332       1749         309   SINET Japan
 4837      332       3943         145   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1542       6174        1002   AT&T WorldNet Services
 2386     1108        586         733   AT&T Data Communications Serv
 4323     1060        821         299   Time Warner Telecom
 6197     1022        639         500   BellSouth Network Solutions, 
18566      982        272           8   Covad Communications 
  174      951       6793         875   Cogent Communications
  701      934       6675         756   UUNET Technologies, Inc. 
11492      873         99          17   Cable One 
 1239      828       2730         578   Sprint 
19262      806       2520         183   Verizon Global Networks 
  721      780      21901         293   DLA Systems Automation Center
20115      765        666         407   Charter Communications 
  209      719       3764         566   Qwest 
22773      713       1744          40   Cox Communications, Inc.
 7011      688        211         432   Citizens Utilities 
  852      602       1092         390   Telus Advanced Communications
19916      567         48          57   OLM LLC 
 5668      566        161          19   CenturyTel Internet Holdings,
 6198      550        535         257   BellSouth Network Solutions, 
  855      538        250          73   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      545       1912         424   UUNET - Commercial IP service
 3301      306       1199         288   TeliaNet Sweden
 3320      295       4993         246   Deutsche Telekom AG
24863      295         45          25   LINKdotNET AS number
 8220      272        474         263   COLT Telecommunications
 6746      263         92         241   Dynamic Network Technologies,
  680      257       2042         251   DFN-IP service G-WiN
 3215      230       2104          96   France Telecom Transpac
 8708      230        282         217   Romania Data Systems S.A.
 1257      214       1069         171   SWIPnet Swedish IP Network
 3269      210       2373          73   TELECOM ITALIA
30890      208         19          90   SC Kappa Invexim SRL
 5416      206         13           9   BATELCO-BH
 3246      205        353         195   Song Networks
 8551      196        197          24   Bezeq International
 3352      176       1767          31   Ibernet, Internet Access Netw
 3300      175        171          91   AUCS Communications Services 
12479      175        578           6   Uni2 Autonomous System
  786      172       1795         172   The JANET IP Service
 9116      170        134          23   Goldenlines main autonomous s

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      818       2016         207   UniNet S.A. de C.V. 
11830      483        299          19   Instituto Costarricense de El
11172      385        104          74   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      307        206          11   VTR PUNTO NET S.A. 
14117      258         16          13   Telefonica del Sur S.A. 
 6471      256         74          31   ENTEL CHILE S.A. 
 7303      228        102          36   Telecom Argentina Stet-France
 6147      224        182          20   Telefonica Del Peru 
 6503      216        170          93   AVANTEL, S.A. 
11556      211        104           6   Cable-Wireless Panama 
10481      181         72           8   Prima S.A. 
21826      156         20          35   INTERCABLE 
23216      146         19          43   RAMtelecom Telecomunicaciones
 7910      144         10          31   ANDINET ON LINE 
19429      142         84          35   E.T.B. 
19169      139          9          22   Telconet 
14522      131         21          10   SatNet S.A. 
18822      129          8          10   TELEFONICA MANQUEHUE 
14259      117         10          14   GTD Internet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      289        868         231   The Internet Solution 
 8452      229         60           7   TEDATA
15475      147         84           4   Nile Online
 6713      144        135          11   Itissalat Al-MAGHRIB
 2018      138        309         113   Tertiary Education Network 
 5536      123          8          15   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      109          6           4   EEPAD TISP TELECOM & INTERNET
 2905       85        176          74   The Internetworking Company o
 2561       60          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
23889       55         13          15   MAURITIUS TELECOM
 5713       41        294          34   Telkom SA Ltd 
12455       39          6           3   Jambonet Autonomous system
33774       38         12          22   AS Number for Telecom Algeria
16637       33         21          25   Johnnic e-Ventures 
33766       33          2           1   Nyala Communications Pty Ltd 
 8524       30          2           6   AUCEGYPT Autonomous System
15804       27          2           1   AS of The Way Out Internet So
33776       27          2           5   Starcomms Nigeria Limited

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

  ASN   No of nets  Net Savings Description
 9583      1032        1016      Sify Limited
 4134      1258         996      CHINANET-BACKBONE
 4755      1043         975      Videsh Sanchar Nigam Ltd. Aut
18566       982         974      Covad Communications 
11492       873         856      Cable One 
 9498       902         838      BHARTI BT INTERNET LTD.
 4323      1060         761      Time Warner Telecom
22773       713         673      Cox Communications, Inc.
19262       806         623      Verizon Global Networks 
 8151       818         611      UniNet S.A. de C.V. 
 5668       566         547      CenturyTel Internet Holdings,
17488       565         544      Hathway IP Over Cable Interne
 6197      1022         522      BellSouth Network Solutions, 
19916       567         510      OLM LLC 
  721       780         487      DLA Systems Automation Center
 7545       555         482      TPG Internet Pty Ltd
15270       501         466      PaeTec.net -a division of Pae
  855       538         465      Canadian Research Network 
11830       483         464      Instituto Costarricense de El
18101       491         463      Reliance Infocom Ltd Internet

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

Bad AS  Designation  Network              Transit AS  Description
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com

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
172.33.1.0/24         7018     AT&T WorldNet Services
192.0.10.0/24         9498     BHARTI BT INTERNET LTD.
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 
192.172.0.0/19         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        /8:19       /9:10      /10:13      /11:30      /12:115     
/13:228     /14:409     /15:798     /16:9103    /17:3625    /18:5927    
/19:12912   /20:14491   /21:12900   /22:16400   /23:17873   /24:110247  
/25:634     /26:458     /27:353     /28:71      /29:43      /30:87      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
18566      965           982      Covad Communications 
 9583      859          1032      Sify Limited
11492      859           873      Cable One 
 7018      831          1542      AT&T WorldNet Services
 2386      827          1108      AT&T Data Communications Serv
 6197      795          1022      BellSouth Network Solutions, 
23577      756           770      KRNIC
 7011      593           688      Citizens Utilities 
 4766      568           759      Korea Telecom (KIX)
 9498      565           902      BHARTI BT INTERNET LTD.
19916      562           567      OLM LLC 
 4755      482          1043      Videsh Sanchar Nigam Ltd. Aut
15270      469           501      PaeTec.net -a division of Pae
 5668      438           566      CenturyTel Internet Holdings,
  855      435           538      Canadian Research Network 
18101      424           491      Reliance Infocom Ltd Internet
 1239      412           828      Sprint 
17849      397           414      Telecommunications Technology
33588      396           418      Bresnan Communications, LLC. 
 6198      388           550      BellSouth Network Solutions, 

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

   4:9         8:62        9:1        12:1655     13:1        15:15     
  16:3        17:3        18:5        20:36       24:855      25:1      
  32:55       38:274      40:57       41:56       44:2        47:10     
  52:4        53:1        55:1        56:3        57:25       58:279    
  59:358      60:189      61:976      62:1054     63:1894     64:3172   
  65:2288     66:3089     67:693      68:653      69:1694     70:403    
  71:130      72:1108     74:123      75:51       76:17       80:810    
  81:768      82:632      83:347      84:481      85:776      86:405    
  87:452      88:254      89:723      90:2        91:107      97:1      
 121:116     122:50      123:8       124:509     125:744     128:312    
 129:221     130:126     131:315     132:49      133:9       134:177    
 135:43      136:170     137:114     138:189     139:51      140:518    
 141:134     142:348     143:213     144:263     145:67      146:319    
 147:140     148:360     149:173     150:113     151:117     152:90     
 153:119     154:5       155:246     156:150     157:151     158:166    
 159:139     160:99      161:95      162:224     163:160     164:238    
 165:237     166:243     167:283     168:480     169:121     170:362    
 171:12      172:1       189:44      190:311     192:5733    193:3622   
 194:2880    195:2178    196:942     198:3778    199:3277    200:4632   
 201:947     202:7015    203:7203    204:3960    205:2106    206:2432   
 207:2905    208:2373    209:3587    210:2270    211:883     212:1309   
 213:1444    214:381     215:39      216:4083    217:1167    218:345    
 219:270     220:840     221:369     222:270    

End of report
Report Website: http://thyme.apnic.net