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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Tue 17 Oct, 2006

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

BGP routing table entries examined:                              200508
    Prefixes after maximum aggregation:                          108823
    Unique aggregates announced to Internet:                      97093
Total ASes present in the Internet Routing Table:                 23363
Origin-only ASes present in the Internet Routing Table:           20345
Origin ASes announcing only one prefix:                            9794
Transit ASes present in the Internet Routing Table:                3018
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN (36728)                               27
Prefixes from unregistered ASNs in the Routing Table:                 4
    Unregistered ASNs in the Routing Table:                           7
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:             10
Number of addresses announced to Internet:                   1615457292
    Equivalent to 96 /8s, 73 /16s and 236 /24s
    Percentage of available address space announced:               43.6
    Percentage of allocated address space announced:               60.3
    Percentage of available address space allocated:               72.3
Total number of prefixes smaller than registry allocations:      100639

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

Prefixes being announced by APNIC Region ASes:                    43843
    Total APNIC prefixes after maximum aggregation:               17532
Prefixes being announced from the APNIC address blocks:           41468
    Unique aggregates announced from the APNIC address blocks:    18459
APNIC Region origin ASes present in the Internet Routing Table:    2702
APNIC Region origin ASes announcing only one prefix:                754
APNIC Region transit ASes present in the Internet Routing Table:    405
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         19
Number of APNIC addresses announced to Internet:              263742304
    Equivalent to 15 /8s, 184 /16s and 99 /24s
    Percentage of available APNIC address space announced:         82.5

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:                    100841
    Total ARIN prefixes after maximum aggregation:                59544
Prefixes being announced from the ARIN address blocks:            74018
    Unique aggregates announced from the ARIN address blocks:     27956
ARIN Region origin ASes present in the Internet Routing Table:    11052
ARIN Region origin ASes announcing only one prefix:                4205
ARIN Region transit ASes present in the Internet Routing Table:    1027
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               304796288
    Equivalent to 18 /8s, 42 /16s and 210 /24s
    Percentage of available ARIN address space announced:          67.3

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:                     40824
    Total RIPE prefixes after maximum aggregation:                26964
Prefixes being announced from the RIPE address blocks:            37751
    Unique aggregates announced from the RIPE address blocks:     25203
RIPE Region origin ASes present in the Internet Routing Table:     8639
RIPE Region origin ASes announcing only one prefix:                4542
RIPE Region transit ASes present in the Internet Routing Table:    1399
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               267615780
    Equivalent to 15 /8s, 243 /16s and 126 /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
                       40960-41983
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:                   12651
    Total LACNIC prefixes after maximum aggregation:               3855
Prefixes being announced from the LACNIC address blocks:          10654
    Unique aggregates announced from the LACNIC address blocks:    6265
LACNIC Region origin ASes present in the Internet Routing Table:    734
LACNIC Region origin ASes announcing only one prefix:               245
LACNIC Region transit ASes present in the Internet Routing Table:   129
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              33117696
    Equivalent to 1 /8s, 249 /16s and 86 /24s
    Percentage of available LACNIC address space announced:        49.3

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:                   2345
    Total AfriNIC prefixes after maximum aggregation:               928
Prefixes being announced from the AfriNIC address blocks:          1659
    Unique aggregates announced from the AfriNIC address blocks:   1036
AfriNIC Region origin ASes present in the Internet Routing Table:   163
AfriNIC Region origin ASes announcing only one prefix:               48
AfriNIC Region transit ASes present in the Internet Routing Table:   28
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              4304384
    Equivalent to 0 /8s, 65 /16s and 174 /24s
    Percentage of available AfriNIC address space announced:       12.8

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     1245       8270         238   CHINANET-BACKBONE
 4755     1011        255          66   Videsh Sanchar Nigam Ltd. Aut
 9583      952        109          15   Sify Limited
 9498      865        212          69   BHARTI BT INTERNET LTD.
 4766      741       4436         307   Korea Telecom (KIX)
 1221      611       1780         470   Telstra Pty Ltd
 7545      541        124          74   TPG Internet Pty Ltd
17488      538         33          13   Hathway IP Over Cable Interne
17676      499      10933          63   Softbank BB Corp.
18101      463         86          21   Reliance Infocom Ltd Internet
 9443      454        111          74   Primus Telecommunications
17849      430         36         126   Telecommunications Technology
 9942      427         77         126   COMindico Australia
 4802      413         86         150   Wantree Development
 4812      411        741          63   China Telecom (Shanghai)
17974      367        129          12   PT TELEKOMUNIKASI INDONESIA
17557      365         31         176   Pakistan Telecom
 2907      333       1733         310   SINET Japan
 4837      324       3556         140   chinanet IDC center beijing n
10139      315         23           6   Meridian Telekoms

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1526       6209         985   AT&T WorldNet Services
 2386     1177        617         748   AT&T Data Communications Serv
 4323     1030        784         294   Time Warner Telecom
 6197     1017        608         498   BellSouth Network Solutions, 
18566      967        272           8   Covad Communications 
  701      963       6758         783   UUNET Technologies, Inc. 
  721      960      21925         306   DLA Systems Automation Center
  174      958       6823         884   Cogent Communications
 1239      833       2763         587   Sprint 
11492      755         90          13   Cable One 
20115      749        673         392   Charter Communications 
19262      744       2410         177   Verizon Global Networks 
22773      719       1744          46   Cox Communications, Inc.
  209      709       3633         557   Qwest 
 7011      684        210         429   Citizens Utilities 
  852      592       1071         388   Telus Advanced Communications
19916      565         49          54   OLM LLC 
  855      547        250          74   Canadian Research Network 
 5668      538        145          18   CenturyTel Internet Holdings,
 6478      530       1280         335   AT&T Worldnet Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      543       1928         423   UUNET - Commercial IP service
24863      367         42          14   LINKdotNET AS number
 3301      313       1200         297   TeliaNet Sweden
 3320      301       5015         246   Deutsche Telekom AG
 8220      279        455         265   COLT Telecommunications
  680      251       2041         247   DFN-IP service G-WiN
 6746      246         91         224   Dynamic Network Technologies,
 3246      228        469         218   Song Networks
 8708      222        279         209   Romania Data Systems S.A.
 9116      221        134          23   Goldenlines main autonomous s
 3215      214       1872          93   France Telecom Transpac
 1257      208        740         168   SWIPnet Swedish IP Network
 3269      204       2277          74   TELECOM ITALIA
30890      202         18          77   SC Kappa Invexim SRL
 8551      200        182          27   Bezeq International
 6830      198        879          43   UPC Distribution Services
 5416      186         12          11   BATELCO-BH
 8866      186         37          15   Bulgarian Telecommunication C
 3300      173        171          94   AUCS Communications Services 
  786      171       1779         171   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      656       1826         220   UniNet S.A. de C.V. 
11172      426        100          91   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      303        206          11   VTR PUNTO NET S.A. 
11830      285        299           9   Instituto Costarricense de El
 6147      264        142          22   Telefonica Del Peru 
 6471      255         74          30   ENTEL CHILE S.A. 
14117      235         15           8   Telefonica del Sur S.A. 
 7303      208         92          27   Telecom Argentina Stet-France
10481      181         72           8   Prima S.A. 
 6503      179        168          85   AVANTEL, S.A. 
23216      142         19          45   RAMtelecom Telecomunicaciones
21826      141         19          30   INTERCABLE 
 7910      137          9          15   ANDINET ON LINE 
19169      136          9          21   Telconet 
19429      136         84          40   E.T.B. 
11556      132         96           4   Cable-Wireless Panama 
18822      129          8          10   TELEFONICA MANQUEHUE 
14522      118         18           9   SatNet S.A. 
 7738      115        410          20   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      294        804         234   The Internet Solution 
 8452      172         60           7   TEDATA
 6713      145        139          12   Itissalat Al-MAGHRIB
15475      133         84           4   Nile Online
 2018      132        297         111   Tertiary Education Network 
 5536      122          8          17   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      108          6           3   EEPAD TISP TELECOM & INTERNET
 2905       75        157          68   The Internetworking Company o
 2561       55          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
12455       38          6           3   Jambonet Autonomous system
 5713       36        293          32   Telkom SA Ltd 
33774       35          7          21   AS Number for Telecom Algeria
 8524       30          2           6   AUCEGYPT Autonomous System
23889       28          9          13   MAURITIUS TELECOM
21280       26          4           4   Swift Global Kenya Ltd.Is an 
16637       24         19          23   Johnnic e-Ventures 
10798       23          1          14   Standard Bank of South Africa
21491       23         17           2   UTL On-line is RF broadband I

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

  ASN   No of nets  Net Savings Description
 4134      1245        1007      CHINANET-BACKBONE
18566       967         959      Covad Communications 
 4755      1011         945      Videsh Sanchar Nigam Ltd. Aut
 9583       952         937      Sify Limited
 9498       865         796      BHARTI BT INTERNET LTD.
11492       755         742      Cable One 
 4323      1030         736      Time Warner Telecom
22773       719         673      Cox Communications, Inc.
  721       960         654      DLA Systems Automation Center
19262       744         567      Verizon Global Networks 
17488       538         525      Hathway IP Over Cable Interne
 5668       538         520      CenturyTel Internet Holdings,
 6197      1017         519      BellSouth Network Solutions, 
19916       565         511      OLM LLC 
  855       547         473      Canadian Research Network 
 7545       541         467      TPG Internet Pty Ltd
18101       463         442      Reliance Infocom Ltd Internet
 8151       656         436      UniNet S.A. de C.V. 
17676       499         436      Softbank BB Corp.
15270       470         435      PaeTec.net -a division of Pae

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

Bad AS  Designation  Network              Transit AS  Description
65508   PRIVATE       193.226.133.0/24      5606       KPNQwest Romania AS
65500   PRIVATE       193.231.248.0/24      5606       KPNQwest Romania AS
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com
64983   PRIVATE       217.156.75.0/24       5606       KPNQwest Romania AS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
198.18.0.0/15         8895     KACST/ISU Riyadh Autonomous S

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
192.44.0.0/24         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
192.172.0.0/19         721     DLA Systems Automation Center
192.249.0.0/20        3450     University of Tennessee, Knox

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      /11:29      /12:106     
/13:214     /14:386     /15:774     /16:9040    /17:3511    /18:5723    
/19:12415   /20:14015   /21:12347   /22:15664   /23:17081   /24:107847  
/25:461     /26:406     /27:195     /28:70      /29:47      /30:98      
/31:0       /32:37      

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

  ASN   No of nets  Total ann.   Description
18566      950           967      Covad Communications 
 2386      890          1177      AT&T Data Communications Serv
 7018      805          1526      AT&T WorldNet Services
 6197      800          1017      BellSouth Network Solutions, 
 9583      780           952      Sify Limited
11492      743           755      Cable One 
 7011      591           684      Citizens Utilities 
19916      559           565      OLM LLC 
 4766      550           741      Korea Telecom (KIX)
 9498      517           865      BHARTI BT INTERNET LTD.
 4755      440          1011      Videsh Sanchar Nigam Ltd. Aut
15270      439           470      PaeTec.net -a division of Pae
  855      428           547      Canadian Research Network 
 5668      420           538      CenturyTel Internet Holdings,
17849      416           430      Telecommunications Technology
 1239      407           833      Sprint 
18101      396           463      Reliance Infocom Ltd Internet
22773      378           719      Cox Communications, Inc.
33588      371           392      Bresnan Communications, LLC. 
17488      358           538      Hathway IP Over Cable Interne

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

   4:8         6:1         8:54       12:1647     13:1        15:16     
  16:3        17:3        18:4        20:41       24:818      25:1      
  32:57       38:258      40:57       41:22       44:3        47:6      
  52:4        53:1        55:1        56:3        57:25       58:223    
  59:286      60:216      61:901      62:1044     63:1903     64:3134   
  65:2238     66:3041     67:652      68:650      69:1664     70:405    
  71:92       72:967      74:88       75:9        80:835      81:702    
  82:631      83:394      84:399      85:689      86:411      87:459    
  88:235      89:516      91:27      121:56      122:18      124:414    
 125:655     128:280     129:227     130:123     131:305     132:35     
 133:9       134:167     135:50      136:177     137:107     138:184    
 139:47      140:524     141:131     142:344     143:193     144:239    
 145:43      146:320     147:138     148:366     149:177     150:115    
 151:121     152:76      153:121     154:5       155:256     156:160    
 157:167     158:155     159:170     160:98      161:85      162:216    
 163:178     164:227     165:236     166:239     167:274     168:487    
 169:129     170:382     171:11      172:1       189:2       190:244    
 192:5753    193:3519    194:2741    195:2104    196:913     198:3876   
 199:3319    200:4515    201:978     202:6941    203:7134    204:3919   
 205:2123    206:2427    207:2977    208:2294    209:3501    210:2181   
 211:848     212:1316    213:1511    214:377     215:35      216:4060   
 217:1152    218:339     219:259     220:795     221:379     222:232    


End of report
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