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[bgp-stats] Routing Table Report - Japan view



*  BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report   04:00 +10GMT Tue 30 Jul, 2002

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

BGP routing table entries examined:                            114784
    Prefixes after maximum aggregation:                         73919
    Unique aggregates announced to Internet:                    54658
Total ASes present in the Internet Routing Table:               13442
Origin-only ASes present in the Internet Routing Table:         11628
Origin ASes announcing only one prefix:                          5156
Transit ASes present in the Internet Routing Table:              1814
Transit-only ASes present in the Internet Routing Table:           47
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    23
Illegal AS announcements present in the Routing Table:              4
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    34
Number of addresses announced to Internet:                 1161998789
    Equivalent to 69 /8s, 66 /16s and 177 /24s
    Percentage of available address space announced:             31.3
    Percentage of allocated address space announced:             57.9
    Percentage of available address space allocated:             54.1
Total number of prefixes smaller than registry allocations:     46805

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

Prefixes being announced by APNIC Region ASes:                  18990
    Total APNIC prefixes after maximum aggregation:             11215
Prefixes being announced from the APNIC address blocks:         17492
    Unique aggregates announced from the APNIC address blocks:  10584
APNIC Region origin ASes present in the Internet Routing Table:  1578
APNIC Region origin ASes announcing only one prefix:              513
APNIC Region transit ASes present in the Internet Routing Table:  277
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       13
Number of APNIC addresses announced to Internet:             89832800
    Equivalent to 5 /8s, 90 /16s and 189 /24s
    Percentage of available APNIC address space announced:       59.1

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   61/8, 202/7, 210/7, 218/7 and 220/7

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

Prefixes being announced by ARIN Region ASes:                   76364
    Total ARIN prefixes after maximum aggregation:              48106
Prefixes being announced from the ARIN address blocks:          53977
    Unique aggregates announced from the ARIN address blocks:   18051
ARIN Region origin ASes present in the Internet Routing Table:   7904
ARIN Region origin ASes announcing only one prefix:              2529
ARIN Region transit ASes present in the Internet Routing Table:   784
Average ARIN Region AS path length visible:                       5.3
    Max ARIN Region AS path length visible:                        18
Number of ARIN addresses announced to Internet:             190386240
    Equivalent to 11 /8s, 89 /16s and 16 /24s
    Percentage of available ARIN address space announced:        70.9

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 - 26623
ARIN Address Blocks    24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                   19429
    Total RIPE prefixes after maximum aggregation:              14598
Prefixes being announced from the RIPE address blocks:          16119
    Unique aggregates announced from the RIPE address blocks:   10472
RIPE Region origin ASes present in the Internet Routing Table:   3914
RIPE Region origin ASes announcing only one prefix:              2114
RIPE Region transit ASes present in the Internet Routing Table:   737
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        23
Number of RIPE addresses announced to Internet:             112844576
    Equivalent to 6 /8s, 185 /16s and 223 /24s
    Percentage of available RIPE address space announced:        74.7

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
RIPE Address Blocks    62/8, 80/7, 193/8, 194/7, 212/7 and 217/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1254       1191         898   Telstra Pty Ltd
 4538      560       1278          26   China Education and Research 
  703      414        376         327   UUNET
 2907      362       1832         340   SINET Japan
 2764      359        358         330   connect.com.au pty ltd
 7474      320        296         213   Optus Communications Pty Ltd
17557      297         20          97   Pakistan Telecom
 4755      293        112          77   Videsh Sanchar Nigam Ltd. Aut
 4134      292       2142         103   Data Communications Bureau
 9443      254         45          69   Primus Telecommunications
 4766      249       1506         156   Korea Internet Exchange for "
 4814      210         79          14   China Telecom (Group)
 9583      180         32           5   Satyam Infoway Ltd.,
17676      168       2610          33   XTAGE CORPORATION
 9768      144        385          74   Korea Telecom
 7657      129         22          88   The Internet Group Limited
 9800      125        191          18   CHINA UNICOM
 4780      120        186          39   Digital United Inc.
 7539      118        183         117   TANet2, sponsored by NSC, TAI
 4621      115         11          63   UNINET-TH

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      899       2439         757   UUNET - Commercial IP service
 3301      395        923         345   TeliaNet Sweden
 5515      320        783         180   Sonera Solution Autonomous Sy
 3215      278        640         177   France Telecom Transpac
 3352      274        531          31   Ibernet, Internet Access Netw
 3320      268       1964         207   Deutsche Telekom AG
  680      235       2150         232   DFN-IP service G-WiN
 5400      209         85          97   BT Ignite European Backbone
 1257      208        446         203   SWIPnet Swedish IP Network
  719      182        306         127   LANLINK autonomous system
  786      177       1873         177   The JANET IP Service
 3303      141        548         140   Swisscom Ltd
 8708      141         23         137   Romania Data Systems S.A.
 2856      128        787         118   BTnet UK Regional network
12302      122         17          29   MobiFon S.A.
 3269      113        690          68   TELECOM ITALIA
 3246      112        317         107   Song Networks
 5511      110        192          88   France Telecom
 3233      107         10           9   RNC - Romanian Natioanal R&D 
 2874      102         85          39   Global One Services AB

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1812       9179        1372   UUNET Technologies, Inc. 
 7018     1309       7385         938   AT&T 
 3908     1015       1655         488   Supernet, Inc. 
 1239      815       3260         638   Sprint 
  852      757       1175         452   Telus Advanced Communications
    1      693       8066         445   GENUITY 
 4323      640        442         264   Time Warner Communications, I
 7843      608        360         239   Adelphia Corp. 
 7132      583        659         133   Southwestern Bell Internet Se
  209      540       2026         350   Qwest 
 7046      535        889         333   UUNET Technologies, Inc. 
  690      518         75         328   Merit Network 
 7066      485        203         254   Virginia Polytechnic Institut
 7029      463        165          56   Alltel Information Services, 
 3549      426        827         308   Global Crossing 
 1657      388         16           2   University of Louisville 
 2149      387        176         287   Performance Systems, Inc. 
15290      378        297         193   AT&T Canada IES 
 6197      377        611          37   BellSouth Network Solutions, 
  577      369        488         216   Bell Advanced Communications 

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

  ASN   No of nets  Net Savings Description
 4538       560         534      China Education and Research 
 3908      1015         527      Supernet, Inc. 
 7132       583         450      Southwestern Bell Internet Se
 7029       463         407      Alltel Information Services, 
 1657       388         386      University of Louisville 
 4323       640         376      Time Warner Communications, I
 7018      1309         371      AT&T 
 7843       608         369      Adelphia Corp. 
 1221      1254         356      Telstra Pty Ltd
 6197       377         340      BellSouth Network Solutions, 
  852       757         305      Telus Advanced Communications
 4151       289         273      USDA 
 6347       344         268      SAVVIS Communications Corpora
 4355       324         255      EarthLink, Inc. 
    1       693         248      GENUITY 
 3352       274         243      Ibernet, Internet Access Netw
18566       236         232      Covad Communications 
 7066       485         231      Virginia Polytechnic Institut
 4755       293         216      Videsh Sanchar Nigam Ltd. Aut
 7303       269         210      Telecom Argentina Stet-France

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

Bad AS  Designation  Network              Transit AS  Description
55000   RESERVED      81.5.64.0/20          5467       MIPT-NET
23323   UNALLOCATED   192.235.0.0/23        2914       Verio, Inc. 
23323   UNALLOCATED   192.235.0.0/20        2914       Verio, Inc. 
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 

Advertised Unregistered Addresses
---------------------------------

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
134.137.0.0/16        7170     AT&T Government Markets 
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
138.94.0.0/16            1     GENUITY 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
192.5.154.0/24       16588     Spider Web Hosting Solutions 
192.44.0.0/19          702     UUNET - Commercial IP service
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
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
192.91.198.0/24       2568     CTS Network Services 
192.92.167.0/24        297     NASA Science Network 
192.108.46.0/23        680     DFN-IP service G-WiN
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
192.136.79.0/24        719     LANLINK autonomous system
192.136.86.0/24        719     LANLINK autonomous system
192.136.87.0/24        719     LANLINK autonomous system
192.136.88.0/24        719     LANLINK autonomous system
192.139.62.0/24       6539     GT Group Telecom Services Cor
192.140.0.0/16        5511     France Telecom
192.153.136.0/21       568     DISO-UNRRA 
192.156.0.0/19         568     DISO-UNRRA 
192.172.0.0/19         568     DISO-UNRRA 
192.195.253.0/24       237     Merit Network 
192.208.29.0/24       3908     Supernet, Inc. 
192.208.30.0/23       3908     Supernet, Inc. 
192.243.36.0/23       7168     Northwest Link 

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:17       /9:6       /10:7       /11:12      /12:36      
/13:86      /14:235     /15:415     /16:7277    /17:1460    /18:2655    
/19:7715    /20:7492    /21:5273    /22:8038    /23:9730    /24:63397   
/25:202     /26:172     /27:100     /28:86      /29:75      /30:113     
/31:0       /32:185     

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

  ASN   No of nets  Total ann.   Description
 3908      593          1015      Supernet, Inc. 
  702      543           899      UUNET - Commercial IP service
  701      493          1812      UUNET Technologies, Inc. 
  690      463           518      Merit Network 
 7843      413           608      Adelphia Corp. 
 7066      388           485      Virginia Polytechnic Institut
 1657      387           388      University of Louisville 
 7018      372          1309      AT&T 
 7029      366           463      Alltel Information Services, 
 6197      262           377      BellSouth Network Solutions, 
 6198      237           310      BellSouth Network Solutions, 
 3301      233           395      TeliaNet Sweden
18566      232           236      Covad Communications 
  209      214           540      Qwest 
 3215      211           278      France Telecom Transpac
 1239      205           815      Sprint 
 1580      202           215      ANOSCEUR 
 3320      200           268      Deutsche Telekom AG
 3352      200           274      Ibernet, Internet Access Netw
 7046      200           535      UUNET Technologies, Inc. 

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

   4:3        12:516      13:10       15:2        17:6        20:3      
  24:699      25:1        32:41       38:9        40:6        44:1      
  57:13       61:319      62:235      63:1870     64:1217     65:1404   
  66:991      67:91       68:67       80:248      81:41      128:65     
 129:131     130:22      131:53      132:11      133:2       134:120    
 135:7       136:346     137:95      138:150     139:72      140:168    
 141:121     142:76      143:47      144:143     145:17      146:189    
 147:141     148:242     149:79      150:39      151:66      152:269    
 153:36      154:12      155:115     156:70      157:128     158:70     
 159:134     160:19      161:74      162:214     163:90      164:265    
 165:132     166:219     167:257     168:295     169:60      170:241    
 171:3       192:5454    193:2375    194:2100    195:928     196:415    
 198:3620    199:3178    200:2620    202:3316    203:4771    204:3252   
 205:2183    206:2666    207:2527    208:2615    209:2702    210:597    
 211:238     212:906     213:670     214:9       215:20      216:2838   
 217:469     218:30     

End of report
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