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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Fri 22 Sep, 2006

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

BGP routing table entries examined:                              198188
    Prefixes after maximum aggregation:                          108252
    Unique aggregates announced to Internet:                      96307
Total ASes present in the Internet Routing Table:                 23174
Origin-only ASes present in the Internet Routing Table:           20209
Origin ASes announcing only one prefix:                            9684
Transit ASes present in the Internet Routing Table:                2965
Transit-only ASes present in the Internet Routing Table:             71
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:                 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:                   1598152460
    Equivalent to 95 /8s, 65 /16s and 223 /24s
    Percentage of available address space announced:               43.1
    Percentage of allocated address space announced:               61.2
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:       98986

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

Prefixes being announced by APNIC Region ASes:                    43487
    Total APNIC prefixes after maximum aggregation:               17530
Prefixes being announced from the APNIC address blocks:           41095
    Unique aggregates announced from the APNIC address blocks:    18473
APNIC Region origin ASes present in the Internet Routing Table:    2705
APNIC Region origin ASes announcing only one prefix:                762
APNIC Region transit ASes present in the Internet Routing Table:    404
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         24
Number of APNIC addresses announced to Internet:              262445152
    Equivalent to 15 /8s, 164 /16s and 152 /24s
    Percentage of available APNIC address space announced:         82.1

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:                    100075
    Total ARIN prefixes after maximum aggregation:                59353
Prefixes being announced from the ARIN address blocks:            73489
    Unique aggregates announced from the ARIN address blocks:     27728
ARIN Region origin ASes present in the Internet Routing Table:    10994
ARIN Region origin ASes announcing only one prefix:                4160
ARIN Region transit ASes present in the Internet Routing Table:    1010
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               299181568
    Equivalent to 17 /8s, 213 /16s and 38 /24s
    Percentage of available ARIN address space announced:          77.5

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, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     40101
    Total RIPE prefixes after maximum aggregation:                26657
Prefixes being announced from the RIPE address blocks:            37044
    Unique aggregates announced from the RIPE address blocks:     24941
RIPE Region origin ASes present in the Internet Routing Table:     8512
RIPE Region origin ASes announcing only one prefix:                4462
RIPE Region transit ASes present in the Internet Routing Table:    1369
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          24
Number of RIPE addresses announced to Internet:               266023844
    Equivalent to 15 /8s, 219 /16s and 51 /24s
    Percentage of available RIPE address space announced:          72.1

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:                   12217
    Total LACNIC prefixes after maximum aggregation:               3795
Prefixes being announced from the LACNIC address blocks:          10222
    Unique aggregates announced from the LACNIC address blocks:    6102
LACNIC Region origin ASes present in the Internet Routing Table:    730
LACNIC Region origin ASes announcing only one prefix:               251
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:                        22
Number of LACNIC addresses announced to Internet:              32707840
    Equivalent to 1 /8s, 243 /16s and 21 /24s
    Percentage of available LACNIC address space announced:        48.7

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:                   2307
    Total AfriNIC prefixes after maximum aggregation:               917
Prefixes being announced from the AfriNIC address blocks:          1617
    Unique aggregates announced from the AfriNIC address blocks:   1078
AfriNIC Region origin ASes present in the Internet Routing Table:   162
AfriNIC Region origin ASes announcing only one prefix:               49
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              4241920
    Equivalent to 0 /8s, 64 /16s and 186 /24s
    Percentage of available AfriNIC address space announced:       12.6

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     1237       8116         237   CHINANET-BACKBONE
 4755      994        255          66   Videsh Sanchar Nigam Ltd. Aut
 9583      955        109          20   Sify Limited
 9498      852        212          71   BHARTI BT INTERNET LTD.
 4766      738       4436         306   Korea Telecom (KIX)
 1221      610       1780         468   Telstra Pty Ltd
 7545      540        124          74   TPG Internet Pty Ltd
17488      534         33          12   Hathway IP Over Cable Interne
17676      499      10933          63   Softbank BB Corp.
 9443      454        111          74   Primus Telecommunications
18101      454         85          18   Reliance Infocom Ltd Internet
 9942      427         77         125   COMindico Australia
17849      424         31         127   Telecommunications Technology
 4802      411         84         150   Wantree Development
 4812      398        741          62   China Telecom (Shanghai)
17974      375        129          12   PT TELEKOMUNIKASI INDONESIA
17557      345         28         165   Pakistan Telecom
 2907      337       1734         313   SINET Japan
10139      335         23           6   Meridian Telekoms
 4837      323       3554         139   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1518       6276         987   AT&T WorldNet Services
 2386     1032        570         782   AT&T Data Communications Serv
 6197     1030        640         479   BellSouth Network Solutions, 
 4323     1016        781         290   Time Warner Telecom
  721      979      21909         306   DLA Systems Automation Center
  174      972       6825         903   Cogent Communications
18566      961        272           8   Covad Communications 
  701      950       6741         778   UUNET Technologies, Inc. 
 1239      842       2764         592   Sprint 
19262      745       2328         186   Verizon Global Networks 
11492      741         90          12   Cable One 
20115      740        662         384   Charter Communications 
  209      707       3631         557   Qwest 
22773      706       1744          46   Cox Communications, Inc.
 7011      667        207         421   Citizens Utilities 
  852      587       1069         385   Telus Advanced Communications
 6478      586       1265         381   AT&T Worldnet Services 
19916      565         49          54   OLM LLC 
  855      551        249          73   Canadian Research Network 
 5668      534        145          18   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      546       1929         428   UUNET - Commercial IP service
 3301      315       1186         299   TeliaNet Sweden
 3320      297       5013         242   Deutsche Telekom AG
 8220      279        455         265   COLT Telecommunications
24863      272         41          32   LINKdotNET AS number
  680      250       2041         246   DFN-IP service G-WiN
 6746      237         90         216   Dynamic Network Technologies,
 3246      228        469         218   Song Networks
 9116      226        134          23   Goldenlines main autonomous s
 1257      222        740         169   SWIPnet Swedish IP Network
 8708      216        278         203   Romania Data Systems S.A.
 3215      209       1832          96   France Telecom Transpac
 3269      204       2262          74   TELECOM ITALIA
 8551      202        182          27   Bezeq International
30890      201         18          79   SC Kappa Invexim SRL
 6830      198        879          43   UPC Distribution Services
 8866      184         37          15   Bulgarian Telecommunication C
 5416      180         12          11   BATELCO-BH
 3300      174        171          97   AUCS Communications Services 
  786      172       1779         172   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      641       1811         225   UniNet S.A. de C.V. 
11172      372         98          90   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      303        206          11   VTR PUNTO NET S.A. 
 6147      275        142          23   Telefonica Del Peru 
 6471      256         74          30   ENTEL CHILE S.A. 
14117      216         13           7   Telefonica del Sur S.A. 
 7303      187         87          23   Telecom Argentina Stet-France
 6503      183        167          83   AVANTEL, S.A. 
10481      181         72           8   Prima S.A. 
23216      144         21          10   RAMtelecom Telecomunicaciones
21826      141         18          25   INTERCABLE 
 7910      140          9          19   ANDINET ON LINE 
19169      136          9          21   Telconet 
19429      134         83          36   E.T.B. 
11556      132         96           4   Cable-Wireless Panama 
18822      129          8          10   TELEFONICA MANQUEHUE 
14522      118         18           9   SatNet S.A. 
 7738      113        410          20   Telecomunicacoes da Bahia S.A
14259      112         10          15   GTD Internet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      288        803         232   The Internet Solution 
 8452      171         60           7   TEDATA
 6713      144        135          11   Itissalat Al-MAGHRIB
15475      141         84           4   Nile Online
 2018      135        297         111   Tertiary Education Network 
 5536      121          8          18   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      107          6           2   EEPAD TISP TELECOM & INTERNET
 2905       80        159          71   The Internetworking Company o
15706       55         12           4   Sudatel Internet Exchange Aut
 2561       54          6           2   Egyptian Universities Network
 5713       36        293          32   Telkom SA Ltd 
33774       32          7          20   AS Number for Telecom Algeria
16637       25         19          23   Johnnic e-Ventures 
21280       24          4           4   Swift Global Kenya Ltd.Is an 
10798       23          1          14   Standard Bank of South Africa
23889       23          8          11   MAURITIUS TELECOM
 8524       22          1           5   AUCEGYPT Autonomous System
21491       22         17           2   UTL On-line is RF broadband I
33766       21          2           1   Nyala Communications Pty Ltd 

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

  ASN   No of nets  Net Savings Description
 4134      1237        1000      CHINANET-BACKBONE
18566       961         953      Covad Communications 
 9583       955         935      Sify Limited
 4755       994         928      Videsh Sanchar Nigam Ltd. Aut
 9498       852         781      BHARTI BT INTERNET LTD.
11492       741         729      Cable One 
 4323      1016         726      Time Warner Telecom
  721       979         673      DLA Systems Automation Center
22773       706         660      Cox Communications, Inc.
19262       745         559      Verizon Global Networks 
 6197      1030         551      BellSouth Network Solutions, 
17488       534         522      Hathway IP Over Cable Interne
 5668       534         516      CenturyTel Internet Holdings,
19916       565         511      OLM LLC 
  855       551         478      Canadian Research Network 
 7545       540         466      TPG Internet Pty Ltd
17676       499         436      Softbank BB Corp.
18101       454         436      Reliance Infocom Ltd Internet
 4766       738         432      Korea Telecom (KIX)
15270       464         429      PaeTec.net -a division of Pae

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
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        /8:18       /9:10      /10:13      /11:31      /12:104     
/13:212     /14:384     /15:760     /16:9017    /17:3475    /18:5671    
/19:12275   /20:13849   /21:12177   /22:15440   /23:16852   /24:106614  
/25:425     /26:433     /27:187     /28:65      /29:42      /30:87      
/31:0       /32:47      

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

  ASN   No of nets  Total ann.   Description
18566      944           961      Covad Communications 
 6197      809          1030      BellSouth Network Solutions, 
 7018      792          1518      AT&T WorldNet Services
 9583      783           955      Sify Limited
 2386      748          1032      AT&T Data Communications Serv
11492      729           741      Cable One 
 7011      572           667      Citizens Utilities 
19916      559           565      OLM LLC 
 4766      547           738      Korea Telecom (KIX)
 9498      509           852      BHARTI BT INTERNET LTD.
15270      433           464      PaeTec.net -a division of Pae
  855      431           551      Canadian Research Network 
 4755      427           994      Videsh Sanchar Nigam Ltd. Aut
 5668      417           534      CenturyTel Internet Holdings,
17849      412           424      Telecommunications Technology
 1239      409           842      Sprint 
18101      388           454      Reliance Infocom Ltd Internet
22773      372           706      Cox Communications, Inc.
33588      369           390      Bresnan Communications, LLC. 
17488      354           534      Hathway IP Over Cable Interne

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

   4:8         8:54       12:1649     13:1        15:16       16:3      
  17:3        18:4        20:41       24:823      25:1        32:57     
  38:256      40:55       41:17       44:3        47:6        52:4      
  55:1        56:3        57:25       58:235      59:268      60:186    
  61:860      62:924      63:1896     64:3082     65:2225     66:3072   
  67:643      68:655      69:1637     70:392      71:88       72:922    
  74:79       75:7        80:826      81:683      82:596      83:389    
  84:401      85:649      86:419      87:457      88:220      89:465    
 121:35      122:14      123:1       124:377     125:642     128:151    
 129:230     130:118     131:314     132:37      133:9       134:167    
 135:45      136:178     137:97      138:225     139:51      140:524    
 141:135     142:363     143:192     144:243     145:42      146:319    
 147:136     148:358     149:174     150:114     151:121     152:76     
 153:120     154:5       155:230     156:158     157:197     158:155    
 159:174     160:98      161:85      162:218     163:167     164:231    
 165:224     166:236     167:250     168:486     169:129     170:364    
 171:11      190:205     192:5740    193:3488    194:2734    195:2072   
 196:891     198:3881    199:3320    200:4464    201:931     202:6902   
 203:7150    204:3936    205:2083    206:2431    207:2937    208:2299   
 209:3500    210:2169    211:803     212:1318    213:1435    214:379    
 215:40      216:4026    217:1153    218:331     219:256     220:793    
 221:383     222:232    

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