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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Mon 28 Nov, 2005

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

BGP routing table entries examined:                              175668
    Prefixes after maximum aggregation:                           99051
    Unique aggregates announced to Internet:                      84988
Total ASes present in the Internet Routing Table:                 20976
Origin-only ASes present in the Internet Routing Table:           18245
Origin ASes announcing only one prefix:                            8636
Transit ASes present in the Internet Routing Table:                2731
Transit-only ASes present in the Internet Routing Table:             74
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:                 3
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1465039744
    Equivalent to 87 /8s, 82 /16s and 187 /24s
    Percentage of available address space announced:               39.5
    Percentage of allocated address space announced:               59.5
    Percentage of available address space allocated:               66.4
Total number of prefixes smaller than registry allocations:       84236

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

Prefixes being announced by APNIC Region ASes:                    36738
    Total APNIC prefixes after maximum aggregation:               15831
Prefixes being announced from the APNIC address blocks:           34494
    Unique aggregates announced from the APNIC address blocks:    16851
APNIC Region origin ASes present in the Internet Routing Table:    2409
APNIC Region origin ASes announcing only one prefix:                699
APNIC Region transit ASes present in the Internet Routing Table:    365
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              207811264
    Equivalent to 12 /8s, 98 /16s and 242 /24s
    Percentage of available APNIC address space announced:         77.1

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, 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:                     92832
    Total ARIN prefixes after maximum aggregation:                55912
Prefixes being announced from the ARIN address blocks:            72334
    Unique aggregates announced from the ARIN address blocks:     27488
ARIN Region origin ASes present in the Internet Routing Table:    10363
ARIN Region origin ASes announcing only one prefix:                3844
ARIN Region transit ASes present in the Internet Routing Table:     966
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               276894464
    Equivalent to 16 /8s, 129 /16s and 19 /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
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:                     34338
    Total RIPE prefixes after maximum aggregation:                23165
Prefixes being announced from the RIPE address blocks:            31294
    Unique aggregates announced from the RIPE address blocks:     20980
RIPE Region origin ASes present in the Internet Routing Table:     7336
RIPE Region origin ASes announcing only one prefix:                3839
RIPE Region transit ASes present in the Internet Routing Table:    1212
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               224968448
    Equivalent to 13 /8s, 104 /16s and 191 /24s
    Percentage of available RIPE address space announced:          67.0

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:                    9957
    Total LACNIC prefixes after maximum aggregation:               3289
Prefixes being announced from the LACNIC address blocks:           8266
    Unique aggregates announced from the LACNIC address blocks:    4777
LACNIC Region origin ASes present in the Internet Routing Table:    651
LACNIC Region origin ASes announcing only one prefix:               208
LACNIC Region transit ASes present in the Internet Routing Table:   124
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC addresses announced to Internet:              22936832
    Equivalent to 1 /8s, 93 /16s and 253 /24s
    Percentage of available LACNIC address space announced:        34.2

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:                   1796
    Total AfriNIC prefixes after maximum aggregation:               854
Prefixes being announced from the AfriNIC address blocks:          1163
    Unique aggregates announced from the AfriNIC address blocks:    835
AfriNIC Region origin ASes present in the Internet Routing Table:   143
AfriNIC Region origin ASes announcing only one prefix:               46
AfriNIC Region transit ASes present in the Internet Routing Table:   22
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2875136
    Equivalent to 0 /8s, 43 /16s and 223 /24s
    Percentage of available AfriNIC address space announced:        8.6

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     1017       6348         217   CHINANET-BACKBONE
 9583      830         77          12   Sify Limited
 4755      754        259          69   Videsh Sanchar Nigam Ltd. Aut
 1221      742       1342         514   Telstra Pty Ltd
 4766      651       3927         287   Korea Telecom (KIX)
 7545      511        108          70   TPG Internet Pty Ltd
17676      470       6819         100   Softbank BB Corp.
 9498      411        216          66   BHARTI BT INTERNET LTD.
 9443      394         87          80   Primus Telecommunications
17488      370         22          10   Hathway IP Over Cable Interne
 4802      348         74         160   Wantree Development
 2907      340       1764         317   SINET Japan
17557      331         24         161   Pakistan Telecom
 9929      330        217          48   China Netcom Corp.
 7474      329        258         227   SingTel Optus Pty Ltd
18302      314        142         168   SK Global co., Ltd
17974      282         65          16   PT TELEKOMUNIKASI INDONESIA
 9837      276         79         177   Powertel Ltd
18101      270         68          19   Reliance Infocom Ltd Internet
 9800      257        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1469       6316         965   AT&T WorldNet Services
 4323     1190        706         233   Time Warner Telecom
  174     1078       5847        1000   Cogent Communications
  721     1068      21938         308   DLA Systems Automation Center
  701      985       8134         830   UUNET Technologies, Inc. 
 6197      963        407         496   BellSouth Network Solutions, 
 2386      914        528         687   AT&T Data Communications Serv
18566      878        240           7   Covad Communications 
 1239      843       2801         597   Sprint 
  209      656       3607         520   Qwest 
20115      655        532         345   Charter Communications 
11492      630         81          10   Cable One 
  852      574       1093         382   Telus Advanced Communications
19262      563       1593         135   Verizon Global Networks 
19916      563         49          54   OLM LLC 
  855      557        247          64   Canadian Research Network 
22773      557       1468          25   Cox Communications, Inc.
 3602      540        126         103   Sprint Canada, Inc. 
 3356      515      10633         402   Level 3 Communications, LLC 
 6478      495       1427         276   AT&T Worldnet Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      615       1960         483   UUNET - Commercial IP service
 3301      303       1085         289   TeliaNet Sweden
 3320      285       3230         240   Deutsche Telekom AG
 8220      271        475         266   COLT Telecommunications
  680      245       2040         239   DFN-IP service G-WiN
 8708      233        272         215   Romania Data Systems S.A.
 3246      230        477         223   Song Networks
 6746      202         51         173   Dynamic Network Technologies,
 1257      195        712         171   SWIPnet Swedish IP Network
 3269      182       1829          68   TELECOM ITALIA
 5515      182        840         128   Sonera Solution Autonomous Sy
  786      174       1795         174   The JANET IP Service
 5400      166        317         136   BT Ignite European Backbone
 6830      161        669          33   UPC Distribution Services
 3300      160        170          94   AUCS Communications Services 
 8866      159         37           9   Bulgarian Telecommunication C
24863      151         37           6   LINKdotNET AS number
 3215      150       1275          81   France Telecom Transpac
12479      150        322           5   Uni2 Autonomous System
25186      148        211         104   France Telecom Transpac's Tra

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      397        709         170   UniNet S.A. de C.V. 
16814      295         18           7   NSS, S.A. 
11172      282        104          69   Servicios Alestra S.A de C.V 
11664      222         22          14   Keytech SA 
19632      196         14           5   Metropolis Intercom S.A. 
14117      184         11           6   Telefonica del Sur S.A. 
22047      180        128           8   VTR PUNTO NET S.A. 
 6147      158        118          21   Telefonica Del Peru 
 7303      152         72          19   Telecom Argentina Stet-France
13999      142         52           9   Mega Cable S.A. de C.V. 
11556      130         64           3   Cable-Wireless Panama 
19169      126          8          23   Telconet 
10481      121         48           8   Prima S.A. 
 6503      113        148          74   AVANTEL, S.A. 
18822      113          7          10   TELEFONICA MANQUEHUE 
21826      112         14          18   INTERCABLE 
 6505      107         88          80   Global One Communicaoes Ltda 
 5639       99         12           9   Telecommunications Services o
11311       99          8          10   Sinectis S.A. 
14522       94         12           8   SatNet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      272        812         229   The Internet Solution 
 8452      147         44           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
 2905       76        163          69   The Internetworking Company o
 6713       67         71          10   Itissalat Al-MAGHRIB
20928       61         16           2   Noor Advanced Technologies AS
24835       59         34           6   RAYA Telecom - Egypt
15475       56         84           4   Nile Online
 5713       38        151          34   Telkom SA Ltd 
12455       33          6           3   Jambonet Autonomous system
33774       33          4          24   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
 8524       23          1           4   AUCEGYPT Autonomous System
16637       23         10          21   Johnnic e-Ventures 
23889       23          5           9   MAURITIUS TELECOM
10798       22          1          13   Standard Bank of South Africa
21280       21          4           4   Swift Global Kenya Ltd.Is an 
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      1190         957      Time Warner Telecom
18566       878         871      Covad Communications 
 9583       830         818      Sify Limited
 4134      1017         800      CHINANET-BACKBONE
  721      1068         760      DLA Systems Automation Center
 4755       754         685      Videsh Sanchar Nigam Ltd. Aut
11492       630         620      Cable One 
22773       557         532      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       557         493      Canadian Research Network 
 6197       963         467      BellSouth Network Solutions, 
 5668       476         450      CenturyTel Internet Holdings,
 7545       511         441      TPG Internet Pty Ltd
 3602       540         437      Sprint Canada, Inc. 
19262       563         428      Verizon Global Networks 
17676       470         370      Softbank BB Corp.
 4766       651         364      Korea Telecom (KIX)
17488       370         360      Hathway IP Over Cable Interne
 6467       406         358      E.Spire Communications, Inc. 
 9498       411         345      BHARTI BT INTERNET LTD.

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

Bad AS  Designation  Network              Transit AS  Description
65003   PRIVATE       57.250.244.0/24      13879       SITA-EQUANT 
38976   UNALLOCATED   62.192.224.0/19      21166       Satgate autonomous s
24413   UNALLOCATED   202.46.32.0/19       17623       China Netcom Corp.

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       /11:17      /12:82      
/13:188     /14:343     /15:666     /16:8603    /17:2897    /18:4886    
/19:11045   /20:12198   /21:10229   /22:13499   /23:14631   /24:95411   
/25:346     /26:288     /27:203     /28:23      /29:12      /30:37      
/31:3       /32:30      

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

  ASN   No of nets  Total ann.   Description
18566      862           878      Covad Communications 
 6197      785           963      BellSouth Network Solutions, 
 7018      722          1469      AT&T WorldNet Services
 9583      653           830      Sify Limited
 2386      641           914      AT&T Data Communications Serv
11492      622           630      Cable One 
 4323      569          1190      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      456           651      Korea Telecom (KIX)
  855      430           557      Canadian Research Network 
  702      394           615      UUNET - Commercial IP service
 7011      381           432      Citizens Utilities 
 5668      376           476      CenturyTel Internet Holdings,
 1239      365           843      Sprint 
 6198      355           493      BellSouth Network Solutions, 
 6517      321           346      Yipes Communications, Inc. 
15270      317           344      PaeTec.net -a division of Pae
13609      298           340      Choice One Communications Inc
18302      298           314      SK Global co., Ltd
  701      285           985      UUNET Technologies, Inc. 

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

   4:3         8:38       12:1618     13:1        15:11       16:3      
  17:3        18:3        20:42       24:680      30:2        32:64     
  38:183      40:54       44:3        47:3        52:4        55:1      
  56:3        57:35       58:96       59:95       60:155      61:804    
  62:801      63:1893     64:2912     65:2126     66:2894     67:636    
  68:685      69:1315     70:236      71:35       72:468      80:696    
  81:583      82:482      83:316      84:310      85:373      86:204    
  87:100     125:63      128:143     129:170     130:99      131:301    
 132:34      133:1       134:151     135:45      136:162     137:71     
 138:174     139:75      140:444     141:146     142:400     143:145    
 144:218     145:34      146:304     147:131     148:271     149:190    
 150:108     151:73      152:111     153:94      154:5       155:152    
 156:84      157:118     158:146     159:177     160:85      161:76     
 162:241     163:159     164:189     165:183     166:146     167:245    
 168:462     169:142     170:309     171:12      192:5758    193:3360   
 194:2438    195:1639    196:722     198:3917    199:3258    200:4301   
 201:453     202:6258    203:6596    204:3829    205:2099    206:2436   
 207:2922    208:2031    209:3450    210:1781    211:797     212:1219   
 213:1382    214:315     215:42      216:3844    217:1171    218:222    
 219:127     220:540     221:317     222:129    

End of report