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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Thu 24 Nov, 2005

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

BGP routing table entries examined:                              175528
    Prefixes after maximum aggregation:                           98989
    Unique aggregates announced to Internet:                      84869
Total ASes present in the Internet Routing Table:                 20972
Origin-only ASes present in the Internet Routing Table:           18243
Origin ASes announcing only one prefix:                            8646
Transit ASes present in the Internet Routing Table:                2729
Transit-only ASes present in the Internet Routing Table:             75
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:                 2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1463871104
    Equivalent to 87 /8s, 64 /16s and 230 /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:       84191

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

Prefixes being announced by APNIC Region ASes:                    36617
    Total APNIC prefixes after maximum aggregation:               15806
Prefixes being announced from the APNIC address blocks:           34406
    Unique aggregates announced from the APNIC address blocks:    16815
APNIC Region origin ASes present in the Internet Routing Table:    2410
APNIC Region origin ASes announcing only one prefix:                709
APNIC Region transit ASes present in the Internet Routing Table:    369
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              207217600
    Equivalent to 12 /8s, 89 /16s and 227 /24s
    Percentage of available APNIC address space announced:         76.9

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:                     92869
    Total ARIN prefixes after maximum aggregation:                55933
Prefixes being announced from the ARIN address blocks:            72383
    Unique aggregates announced from the ARIN address blocks:     27516
ARIN Region origin ASes present in the Internet Routing Table:    10369
ARIN Region origin ASes announcing only one prefix:                3845
ARIN Region transit ASes present in the Internet Routing Table:     971
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               276867584
    Equivalent to 16 /8s, 128 /16s and 170 /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:                     34243
    Total RIPE prefixes after maximum aggregation:                23127
Prefixes being announced from the RIPE address blocks:            31204
    Unique aggregates announced from the RIPE address blocks:     20918
RIPE Region origin ASes present in the Internet Routing Table:     7326
RIPE Region origin ASes announcing only one prefix:                3840
RIPE Region transit ASes present in the Internet Routing Table:    1209
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               224358144
    Equivalent to 13 /8s, 95 /16s and 111 /24s
    Percentage of available RIPE address space announced:          66.9

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:                    9990
    Total LACNIC prefixes after maximum aggregation:               3271
Prefixes being announced from the LACNIC address blocks:           8279
    Unique aggregates announced from the LACNIC address blocks:    4745
LACNIC Region origin ASes present in the Internet Routing Table:    651
LACNIC Region origin ASes announcing only one prefix:               210
LACNIC Region transit ASes present in the Internet Routing Table:   122
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC addresses announced to Internet:              22849024
    Equivalent to 1 /8s, 92 /16s and 166 /24s
    Percentage of available LACNIC address space announced:        34.0

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:                   1802
    Total AfriNIC prefixes after maximum aggregation:               852
Prefixes being announced from the AfriNIC address blocks:          1158
    Unique aggregates announced from the AfriNIC address blocks:    834
AfriNIC Region origin ASes present in the Internet Routing Table:   141
AfriNIC Region origin ASes announcing only one prefix:               42
AfriNIC Region transit ASes present in the Internet Routing Table:   19
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2866944
    Equivalent to 0 /8s, 43 /16s and 191 /24s
    Percentage of available AfriNIC address space announced:        8.5

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     1022       6348         216   CHINANET-BACKBONE
 9583      828         77          12   Sify Limited
 4755      748        259          67   Videsh Sanchar Nigam Ltd. Aut
 1221      735       1342         512   Telstra Pty Ltd
 4766      651       3927         287   Korea Telecom (KIX)
 7545      513        108          71   TPG Internet Pty Ltd
17676      470       6819         100   Softbank BB Corp.
 9498      401        215          63   BHARTI BT INTERNET LTD.
 9443      394         87          80   Primus Telecommunications
17488      366         22          10   Hathway IP Over Cable Interne
 4802      342         73         158   Wantree Development
 2907      340       1764         317   SINET Japan
 7474      332        258         228   SingTel Optus Pty Ltd
17557      331         24         161   Pakistan Telecom
 9929      329        217          48   China Netcom Corp.
18302      302        140         164   SK Global co., Ltd
17974      282         65          16   PT TELEKOMUNIKASI INDONESIA
 9837      276         79         177   Powertel Ltd
18101      271         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     1484       6317         963   AT&T WorldNet Services
 4323     1192        706         233   Time Warner Telecom
  174     1079       5847         998   Cogent Communications
  721     1070      21938         308   DLA Systems Automation Center
  701      987       8136         831   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      846       2800         596   Sprint 
  209      658       3621         521   Qwest 
20115      653        531         345   Charter Communications 
11492      629         81          10   Cable One 
  852      573       1093         381   Telus Advanced Communications
19262      563       1593         135   Verizon Global Networks 
19916      563         49          54   OLM LLC 
  855      557        247          64   Canadian Research Network 
22773      556       1468          25   Cox Communications, Inc.
 3602      542        126         103   Sprint Canada, Inc. 
 3356      518      10633         404   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         484   UUNET - Commercial IP service
 3301      304       1101         290   TeliaNet Sweden
 3320      285       3230         240   Deutsche Telekom AG
 8220      270        475         265   COLT Telecommunications
  680      245       2040         239   DFN-IP service G-WiN
 8708      235        275         221   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        185          94   AUCS Communications Services 
 8866      158         37           9   Bulgarian Telecommunication C
12479      150        322           5   Uni2 Autonomous System
24863      150         37           6   LINKdotNET AS number
25186      148        211         104   France Telecom Transpac's Tra
 3215      147       1269          78   France Telecom Transpac

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      396        708         169   UniNet S.A. de C.V. 
16814      295         18           7   NSS, S.A. 
11172      282        104          70   Servicios Alestra S.A de C.V 
11664      223         22          14   Keytech SA 
19632      196         14           5   Metropolis Intercom S.A. 
14117      184         11           6   Telefonica del Sur S.A. 
22047      178        128           7   VTR PUNTO NET S.A. 
 6147      161        118          21   Telefonica Del Peru 
 7303      152         72          19   Telecom Argentina Stet-France
13999      144         52           9   Mega Cable S.A. de C.V. 
11556      129         64           2   Cable-Wireless Panama 
19169      128          8          20   Telconet 
10481      121         48           8   Prima S.A. 
 6505      120         89          85   Global One Communicaoes Ltda 
18822      113          7          10   TELEFONICA MANQUEHUE 
21826      112         14          18   INTERCABLE 
 5639      111         12           9   Telecommunications Services o
 6503      111        148          72   AVANTEL, S.A. 
11311       99          8          10   Sinectis S.A. 
23216       93         23          11   RAMtelecom Telecomunicaciones

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      269        708         228   The Internet Solution 
 8452      147         44           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
 2905       78        211          71   The Internetworking Company o
 6713       70         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 
10798       22          1          13   Standard Bank of South Africa
23889       22          5           9   MAURITIUS TELECOM
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      1192         959      Time Warner Telecom
18566       878         871      Covad Communications 
 9583       828         816      Sify Limited
 4134      1022         806      CHINANET-BACKBONE
  721      1070         762      DLA Systems Automation Center
 4755       748         681      Videsh Sanchar Nigam Ltd. Aut
11492       629         619      Cable One 
22773       556         531      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       513         442      TPG Internet Pty Ltd
 3602       542         439      Sprint Canada, Inc. 
19262       563         428      Verizon Global Networks 
17676       470         370      Softbank BB Corp.
 4766       651         364      Korea Telecom (KIX)
 6467       407         359      E.Spire Communications, Inc. 
17488       366         356      Hathway IP Over Cable Interne
 9498       401         338      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 
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      
/13:187     /14:341     /15:667     /16:8596    /17:2879    /18:4876    
/19:11037   /20:12170   /21:10211   /22:13482   /23:14617   /24:95388   
/25:346     /26:292     /27:201     /28:26      /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      732          1484      AT&T WorldNet Services
 9583      651           828      Sify Limited
 2386      641           914      AT&T Data Communications Serv
11492      621           629      Cable One 
 4323      570          1192      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      456           651      Korea Telecom (KIX)
  855      430           557      Canadian Research Network 
 7011      399           461      Citizens Utilities 
  702      394           615      UUNET - Commercial IP service
 5668      376           476      CenturyTel Internet Holdings,
 1239      365           846      Sprint 
 6198      355           493      BellSouth Network Solutions, 
 6517      320           345      Yipes Communications, Inc. 
15270      317           344      PaeTec.net -a division of Pae
13609      298           340      Choice One Communications Inc
18302      292           302      SK Global co., Ltd
  701      285           987      UUNET Technologies, Inc. 

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

   4:3         8:38       12:1621     13:1        15:11       16:3      
  17:3        18:3        20:42       24:680      30:2        32:64     
  38:180      40:54       44:3        47:3        52:4        55:1      
  56:3        57:35       58:98       59:92       60:149      61:805    
  62:795      63:1898     64:2936     65:2130     66:2893     67:638    
  68:682      69:1314     70:234      71:35       72:465      80:696    
  81:581      82:475      83:317      84:300      85:371      86:201    
  87:95      125:64      128:142     129:169     130:99      131:299    
 132:35      133:1       134:151     135:45      136:168     137:71     
 138:174     139:75      140:443     141:146     142:400     143:145    
 144:217     145:34      146:304     147:131     148:271     149:193    
 150:108     151:73      152:111     153:94      154:5       155:153    
 156:84      157:119     158:146     159:178     160:85      161:66     
 162:240     163:147     164:190     165:183     166:146     167:246    
 168:461     169:142     170:312     171:12      192:5761    193:3363   
 194:2437    195:1639    196:715     198:3925    199:3259    200:4310   
 201:465     202:6249    203:6578    204:3835    205:2093    206:2441   
 207:2921    208:2033    209:3459    210:1769    211:823     212:1211   
 213:1375    214:313     215:42      216:3838    217:1171    218:218    
 219:130     220:539     221:317     222:127    

End of report