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[bgp-stats] Routing Table Report - Japan view



Routing Table Report   04:00 +10GMT Tue 10 Feb, 2004

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

BGP routing table entries examined:                            132933
    Prefixes after maximum aggregation:                         81556
    Unique aggregates announced to Internet:                    64340
Total ASes present in the Internet Routing Table:               16598
Origin-only ASes present in the Internet Routing Table:         14420
Origin ASes announcing only one prefix:                          6647
Transit ASes present in the Internet Routing Table:              2178
Transit-only ASes present in the Internet Routing Table:           70
Average AS path length visible in the Internet Routing Table:     4.9
    Max AS path length visible:                                    18
Illegal AS announcements present in the Routing Table:              5
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           14
Number of addresses announced to Internet:                 1284360228
    Equivalent to 76 /8s, 141 /16s and 200 /24s
    Percentage of available address space announced:             34.7
    Percentage of allocated address space announced:             59.5
    Percentage of available address space allocated:             58.2
Total number of prefixes smaller than registry allocations:     58907

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

Prefixes being announced by APNIC Region ASes:                  24701
    Total APNIC prefixes after maximum aggregation:             13191
Prefixes being announced from the APNIC address blocks:         23130
    Unique aggregates announced from the APNIC address blocks:  13310
APNIC Region origin ASes present in the Internet Routing Table:  1994
APNIC Region origin ASes announcing only one prefix:              595
APNIC Region transit ASes present in the Internet Routing Table:  320
Average APNIC Region AS path length visible:                      4.8
    Max APNIC Region AS path length visible:                       17
Number of APNIC addresses announced to Internet:            135614592
    Equivalent to 8 /8s, 21 /16s and 80 /24s
    Percentage of available APNIC address space announced:       73.1

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     77686
    Total ARIN prefixes after maximum aggregation:                48110
Prefixes being announced from the ARIN address blocks:            60134
    Unique aggregates announced from the ARIN address blocks:     20887
ARIN Region origin ASes present in the Internet Routing Table:     8923
ARIN Region origin ASes announcing only one prefix:                3158
ARIN Region transit ASes present in the Internet Routing Table:     856
Average ARIN Region AS path length visible:                         4.7
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               216099936
    Equivalent to 12 /8s, 225 /16s and 108 /24s
    Percentage of available ARIN address space announced:          71.6

ARIN AS Blocks         1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
                       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, 29695 - 30719
                       31744 - 32767
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     23921
    Total RIPE prefixes after maximum aggregation:                17357
Prefixes being announced from the RIPE address blocks:            20754
    Unique aggregates announced from the RIPE address blocks:     13741
RIPE Region origin ASes present in the Internet Routing Table:     5151
RIPE Region origin ASes announcing only one prefix:                2766
RIPE Region transit ASes present in the Internet Routing Table:     882
Average RIPE Region AS path length visible:                         5.5
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               151095680
    Equivalent to 9 /8s, 1 /16s and 137 /24s
    Percentage of available RIPE address space announced:          69.3

RIPE AS Blocks         1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
                       2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
                       6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
                       20480 - 21503, 24576 - 25599, 28672 - 29695
                       30720 - 31743
RIPE Address Blocks    62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    5460
    Total LACNIC prefixes after maximum aggregation:               2215
Prefixes being announced from the LACNIC address blocks:           5095
    Unique aggregates announced from the LACNIC address blocks:    3242
LACNIC Region origin ASes present in the Internet Routing Table:    369
LACNIC Region origin ASes announcing only one prefix:               102
LACNIC Region transit ASes present in the Internet Routing Table:    71
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        12
Number of LACNIC addresses announced to Internet:              14106624
    Equivalent to 0 /8s, 215 /16s and 64 /24s
    Percentage of available LACNIC address space announced:        42.0

LACNIC AS Blocks       26592 - 26623, 27648 - 28671
LACNIC Address Blocks  200/7

Emerging AfriNIC Region Analysis Summary
----------------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1162
    Total AfriNIC prefixes after maximum aggregation:               683
Prefixes being announced from the AfriNIC address blocks:           734
    Unique aggregates announced from the AfriNIC address blocks:    568
AfriNIC Region origin ASes present in the Internet Routing Table:    92
AfriNIC Region origin ASes announcing only one prefix:               26
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              1766400
    Equivalent to 0 /8s, 26 /16s and 244 /24s
    Percentage of available AfriNIC address space announced:       10.5

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221      935       1120         661   Telstra Pty Ltd
 4134      670       2491         118   Data Communications Bureau
 4766      424       2905         249   Korea Internet Exchange for "
 2907      360       1831         337   SINET Japan
 4755      351        130          57   Videsh Sanchar Nigam Ltd. Aut
 9443      345         69          80   Primus Telecommunications
 9583      342         40          92   Satyam Infoway Ltd.,
  703      338        374         261   UUNET
17557      320         23         157   Pakistan Telecom
17676      296       4364          37   XTAGE CORPORATION
 2764      290        273         242   connect.com.au pty ltd
 7474      274        305         214   Optus Communications Pty Ltd
 9942      227         69         130   COMindico Australia
 9929      218        154          30   China Netcom Corp.
 9800      214        347          55   CHINA UNICOM
 9498      182         30          34   BHARTI BT INTERNET LTD.
17964      153        118          60   Beijing Dian-Xin-Tong Network
17642      149         40         109   RequestDSL BGP AS# for Sydney
 4739      148         60         135   Commerical Internet eXchange 
 4837      148       1425          97   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1401       7009         982   AT&T 
  701     1371       8662         968   UUNET Technologies, Inc. 
 1239      945       3096         659   Sprint 
 3356      813      10920         648   Level 3 Communications, LLC 
 6197      732        442         273   BellSouth Network Solutions, 
  209      725       3533         512   Qwest 
18566      687        192           9   Covad Communications 
 4323      680        544         203   Time Warner Communications, I
20115      609        335         343   Charter Communications 
 6198      545        354         195   BellSouth Network Solutions, 
 7843      507        572         125   Adelphia Corp. 
  852      503       1123         399   Telus Advanced Communications
 7066      503        207         271   Virginia Polytechnic Institut
 7132      455       7449         313   Southwestern Bell Internet Se
 2386      419        562         221   AT&T Data Communications Serv
  690      398         58         268   Merit Network 
 4355      393        323          99   EarthLink, Inc. 
19029      387        168         248   New Edge Networks 
  376      383        359         114   Reseau Interordinateurs Scien
27364      382         28          23   Armstrong Cable Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      684       2073         570   UUNET - Commercial IP service
 3301      336       1174         315   TeliaNet Sweden
 3320      282       1955         230   Deutsche Telekom AG
 8220      266        411         252   COLT Internet - International
  680      241       2027         237   DFN-IP service G-WiN
  719      233        288         105   LANLINK autonomous system
 1257      227        505         191   SWIPnet Swedish IP Network
13083      216         51           8   Mannesmann Datenverarbeitung 
 3246      188        429         186   Song Networks
  786      175       1826         175   The JANET IP Service
 8708      171        111         162   Romania Data Systems S.A.
 5515      169        762         135   Sonera Solution Autonomous Sy
25186      167        201         108   France Telecom Transpac's Tra
 3215      157        787          73   France Telecom Transpac
 5400      145        221         132   BT Ignite European Backbone
 3303      138        620         138   Swisscom Ltd
 6746      127         19         112   Dynamic Network Technologies,
 3269      125       1037          65   TELECOM ITALIA
12302      125         18          32   MobiFon S.A.
 2856      117       1294         107   BTnet UK Regional network

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      358        121          66   ImpSat
 8151      246        368         125   UniNet S.A. de C.V. 
11172      204         77          44   Servicios Alestra S.A de C.V 
16814      155         10           5   NSS, S.A. 
 6503      137        204          92   AVANTEL, S.A. 
 7303      137         51          30   Telecom Argentina Stet-France
 6505      131         90          91   Global One Communicaoes Ltda 
 6147      123         78          20   Telefonica Del Peru 
11556       88         73          25   Cable-Wireless Panama 
11992       79         25          28   Integrated Systems 
15311       78         18          38   Telefonica Empresas 
 6535       77          5          19   Chilesat Servicios  Empresari
 4270       71         18           9   Red de Interconexion Universi
 7080       66          4           2   Electronica y Comunicaciones 
11311       66          7          22   Sinectis S.A. 
27699       62        168          15   TELECOMUNICACOES DE SAO PAULO
10292       61          6          28   TELECOMMUNICATIONS OF JAMAICA
14420       60          4          26   ANDINATEL S.A. 
 1916       59        247          39   Fundacao de Amparo a Pesquisa
 7738       59        218          13   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      249        632         218   The Internet Solution 
 5536      104          8           3   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       90        272          80   The Internetworking Company o
 2561       58          6           3   Egyptian Universities Network
11845       36          9          11   Data Pro Business Online 
 3208       33          2           1   ARN Network
 9129       25          3           4   UUNET Kenya
16637       25          9          18   Johnnic e-Ventures 
 5713       24         93          22   Telkom SA Ltd 
24835       23         18           6   RAYA Telecom - Egypt
 6713       22         38           9   Itissalat Al-MAGHRIB
12455       22          4           2   Jambonet Autonomous system
 8524       18          2           4   AUCEGYPT Autonomous System
10798       18          1          12   Standard Bank of South Africa
15706       16          2           3   Sudatel Internet Exchange Aut
15825       16          1          10   Network Computer Systems Auto
12258       15          3          10   Vodacom Internet Company 
17148       14          1           8   First National Bank 
 2609       12         10           3   Tunisia BackBone AS

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

  ASN   No of nets  Net Savings Description
18566       687         678      Covad Communications 
 4134       670         552      Data Communications Bureau
 4323       680         477      Time Warner Communications, I
 6197       732         459      BellSouth Network Solutions, 
  701      1371         403      UUNET Technologies, Inc. 
 7843       507         382      Adelphia Corp. 
27364       382         359      Armstrong Cable Services 
 6198       545         350      BellSouth Network Solutions, 
 5668       346         330      Century Telephone 
22909       338         319      Comcast Cable Corporation 
22773       342         309      Cox Communications, Inc. Atla
 4355       393         294      EarthLink, Inc. 
 4755       351         294      Videsh Sanchar Nigam Ltd. Aut
 6140       358         292      ImpSat
 1239       945         286      Sprint 
 1221       935         274      Telstra Pty Ltd
  376       383         269      Reseau Interordinateurs Scien
20115       609         266      Charter Communications 
 9443       345         265      Primus Telecommunications
17676       296         259      XTAGE CORPORATION

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

Bad AS  Designation  Network              Transit AS  Description
65412   PRIVATE       64.70.42.0/24         3561       Cable & Wireless USA
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
64512   PRIVATE       204.70.1.0/24         3561       Cable & Wireless USA
23861   UNALLOCATED   210.93.46.0/24        3786       DACOM Corporation
23861   UNALLOCATED   210.93.47.0/24        3786       DACOM Corporation

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
192.43.230.0/24       4738     South Australian Academic Res
192.44.0.0/19          702     UUNET - Commercial IP service
192.83.16.0/20        5515     Sonera Solution Autonomous Sy
192.83.32.0/19        5515     Sonera Solution Autonomous Sy
192.83.96.0/22        5515     Sonera Solution Autonomous Sy
192.83.100.0/24       5515     Sonera Solution Autonomous Sy
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
192.136.79.0/24        719     LANLINK autonomous system
192.172.0.0/19         568     DISO-UNRRA 

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:4       /10:6       /11:15      /12:58      
/13:105     /14:283     /15:502     /16:7560    /17:1881    /18:3480    
/19:8934    /20:9275    /21:6769    /22:9555    /23:11112   /24:72673   
/25:184     /26:298     /27:163     /28:27      /29:5       /30:15      
/31:0       /32:10      

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

  ASN   No of nets  Total ann.   Description
18566      670           687      Covad Communications 
 6197      574           732      BellSouth Network Solutions, 
 7018      506          1401      AT&T 
 3356      436           813      Level 3 Communications, LLC 
  702      416           684      UUNET - Commercial IP service
 7066      397           503      Virginia Polytechnic Institut
  701      393          1371      UUNET Technologies, Inc. 
 6198      393           545      BellSouth Network Solutions, 
20115      385           609      Charter Communications 
27364      375           382      Armstrong Cable Services 
  690      361           398      Merit Network 
 1239      331           945      Sprint 
 5668      305           346      Century Telephone 
19029      255           387      New Edge Networks 
 4766      247           424      Korea Internet Exchange for "
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      232           282      Deutsche Telekom AG
 6517      228           252      Yipes Communications, Inc. 
 6386      222           248      bellsouth.net, inc. 
13609      220           260      Choice One Communications Inc

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

   4:3        12:773      13:1        15:6        16:1        17:3      
  20:7        24:838      32:84       38:44       40:26       44:2      
  55:1        56:1        57:14       61:366      62:466      63:1819   
  64:1852     65:1853     66:2364     67:273      68:605      69:385    
  80:457      81:214      82:76       83:2       128:148     129:264    
 130:78      131:78      132:16      134:172     135:16      136:186    
 137:113     138:146     139:39      140:158     141:135     142:104    
 143:46      144:79      145:39      146:282     147:75      148:298    
 149:84      150:121     151:61      152:214     153:60      154:1      
 155:136     156:66      157:56      158:148     159:143     160:45     
 161:52      162:368     163:68      164:330     165:162     166:106    
 167:215     168:179     169:96      170:297     171:8       192:5518   
 193:2600    194:2011    195:1315    196:516     198:3633    199:2883   
 200:3006    201:7       202:4467    203:5453    204:3028    205:2008   
 206:2268    207:2590    208:2406    209:2861    210:1056    211:440    
 212:906     213:1013    214:23      215:24      216:3380    217:839    
 218:119     219:93      220:167     221:18      222:1      

End of report