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[bgp-stats] Routing Table Report - Japan view



*  BGP Statistics focusing on the Asia Pacific Region *
* To unsubscribe: send "unsubscribe" to bgp-stats-request@lists.apnic.net *

Routing Table Report   04:00 +10GMT Wed 13 Feb, 2002

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

BGP routing table entries examined:                            108042
    Prefixes after maximum aggregation:                         71959
    Unique aggregates announced to Internet:                    52725
Total ASes present in the Internet Routing Table:               12543
Origin-only ASes present in the Internet Routing Table:         10853
Origin ASes announcing only one prefix:                          4735
Transit ASes present in the Internet Routing Table:              1690
Transit-only ASes present in the Internet Routing Table:           61
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    19
Illegal AS announcements present in the Routing Table:              2
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    15
Number of addresses announced to Internet:                 1164583688
    Equivalent to 69 /8s, 106 /16s and 35 /24s
    Percentage of available address space announced:             31.4
    Percentage of allocated address space announced:             59.5
    Percentage of available address space allocated:             52.8
Total number of prefixes smaller than registry allocations:     71998

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

Prefixes being announced by APNIC Region ASes:                  17573
    Total APNIC prefixes after maximum aggregation:             10669
Prefixes being announced from the APNIC address blocks:         16072
    Unique aggregates announced from the APNIC address blocks:   9869
APNIC Region origin ASes present in the Internet Routing Table:  1448
APNIC Region origin ASes announcing only one prefix:              481
APNIC Region transit ASes present in the Internet Routing Table:  251
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:             79480896
    Equivalent to 4 /8s, 188 /16s and 200 /24s
    Percentage of available APNIC address space announced:       58.8

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 220/8

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

Prefixes being announced by ARIN Region ASes:                   72528
    Total ARIN prefixes after maximum aggregation:              47236
Prefixes being announced from the ARIN address blocks:          51178
    Unique aggregates announced from the ARIN address blocks:   17294
ARIN Region origin ASes present in the Internet Routing Table:   7426
ARIN Region origin ASes announcing only one prefix:              2301
ARIN Region transit ASes present in the Internet Routing Table:   768
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             185962820
    Equivalent to 11 /8s, 21 /16s and 145 /24s
    Percentage of available ARIN address space announced:        69.3

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
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:                   17941
    Total RIPE prefixes after maximum aggregation:              14054
Prefixes being announced from the RIPE address blocks:          14752
    Unique aggregates announced from the RIPE address blocks:    9891
RIPE Region origin ASes present in the Internet Routing Table:   3607
RIPE Region origin ASes announcing only one prefix:              1953
RIPE Region transit ASes present in the Internet Routing Table:   656
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        19
Number of RIPE addresses announced to Internet:             106658048
    Equivalent to 6 /8s, 91 /16s and 121 /24s
    Percentage of available RIPE address space announced:        70.6

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     1315       1258         962   Telstra Pty Ltd
 4538      454       1162          16   China Education and Research 
  703      403        359         306   UUNET Technologies, Inc. 
 2907      399       1942         366   SINET Japan
 2764      387        361         363   connect.com.au pty ltd
 7474      301        290         204   Optus Communications Pty Ltd
 4755      294        111          86   Videsh Sanchar Nigam Ltd. Aut
 4134      270       1874          98   Data Communications Bureau
 9394      243        112           3   CHINA RAILWAY Internet(CRNET)
17557      215         16          94   Pakistan Telecom
 4766      206       1393         145   Korea Internet Exchange for "
 7539      160        204         154   TANet2, sponsored by NSC, TAI
 9443      158         44          58   Primus Telecommunications
 9768      146        385          88   Korea Telecom
 9583      140         32           5   Satyam Infoway Ltd.,
 7657      121         22          84   The Internet Group Limited
 4197      120         13           5   Global OnLine Japan K.K.
 4713      117        914         103   NTT Communications Corporatio
 4780      115        186          40   Digital United Inc.
 4740      114         16          97   OzEmail ISP

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1109       2617         862   UUNET Technologies, Inc. 
 3301      400        924         353   TeliaNet Sweden
 1257      251        487         247   SWIPnet Swedish IP Network
 3215      242        570         156   France Telecom / &Equant
  680      233       2148         231   DFN-IP service G-WiN
 5515      216        705         174   Sonera Finland Autonomous Sys
 5400      199         82          96   Concert European Core Network
 3320      193       1916         169   Deutsche Telekom AG
  786      182       1874         182   The JANET IP Service
  719      166        289         120   LANLINK autonomous system
 8708      156         21         144   Romania Data Systems S.A.
 2856      131        790         120   BTnet UK Regional network
 3303      124        577         123   Swisscom Ltd
 3269      117        693          71   TELECOM ITALIA
 8297      114         40          64   Teleglobe Autonomous System i
12302      114          7          35   MobiFon S.A.
  517      101        227          99   KPNQwest Germany GmbH
 5511       94        193          83   France Telecom
 5603       92         12          59   SiOL Internet d.o.o.
 1267       91       1471          41   Infostrada S.p.A.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     2088       8268        1503   UUNET Technologies, Inc. 
 7018     1232       7490         926   AT&T 
    1      828       8103         603   BBN Planet 
 3908      825       1677         473   Supernet, Inc. 
 1239      803       3340         620   Sprint 
 4323      641        433         242   Time Warner Communications, I
 7046      623        850         420   UUNET Technologies, Inc. 
  852      616       1125         408   Telus Advanced Communications
  209      537       1909         308   Qwest 
  690      460         68         294   Merit Network 
 7132      456        510         164   Southwestern Bell Internet Se
 2914      453       2193         421   Verio, Inc. 
 3549      438        821         221   Global Crossing 
 2149      389        210         325   Performance Systems, Inc. 
  705      377        110         263   UUNET Technologies, Inc. 
 3561      367       2236         322   Cable & Wireless USA 
  577      352        588         219   Bell Advanced Communications 
 3741      348        731         239   The Internet Solution 
 6197      328        227         162   BellSouth Network Solutions, 
 2386      326        355         189   AT&T Data Communications Serv

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

  ASN   No of nets  Net Savings Description
 4538       454         438      China Education and Research 
 4323       641         399      Time Warner Communications, I
 1221      1315         353      Telstra Pty Ltd
 3908       825         352      Supernet, Inc. 
 7018      1232         306      AT&T 
 4151       312         296      USDA 
 7132       456         292      Southwestern Bell Internet Se
11371       278         271      Rhythms NetConnections 
  702      1109         247      UUNET Technologies, Inc. 
 9394       243         240      CHINA RAILWAY Internet(CRNET)
 6347       317         238      SAVVIS Communications Corpora
  209       537         229      Qwest 
    1       828         225      BBN Planet 
 7843       260         221      Adelphia Corp. 
 3549       438         217      Global Crossing 
 6198       300         214      BellSouth Network Solutions, 
  852       616         208      Telus Advanced Communications
 4755       294         208      Videsh Sanchar Nigam Ltd. Aut
 7046       623         203      UUNET Technologies, Inc. 
 4355       232         203      EarthLink, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.201.0/24      1880       Stupi, house man's p
 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 
96.0.0.0/20           3549     Global Crossing 
126.0.0.0/8           7336     Compass Communications 
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     BBN Planet 
144.7.0.0/16           701     UUNET Technologies, Inc. 
153.36.0.0/14          701     UUNET Technologies, Inc. 
154.150.0.0/16        6494     IDCI 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
164.235.0.0/16        6025     US DOD NIC Unregistered
201.115.100.0/24      7018     AT&T 

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:18       /9:6       /10:7       /11:12      /12:37      
/13:91      /14:231     /15:391     /16:7139    /17:1428    /18:2504    
/19:7365    /20:6734    /21:4806    /22:7284    /23:8911    /24:60055   
/25:221     /26:272     /27:131     /28:99      /29:100     /30:160     
/31:0       /32:40      

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

  ASN   No of nets  Total ann.   Description
  701     1344          2088      UUNET Technologies, Inc. 
 1221     1169          1315      Telstra Pty Ltd
  702      733          1109      UUNET Technologies, Inc. 
 7018      647          1232      AT&T 
 3908      579           825      Supernet, Inc. 
 4323      523           641      Time Warner Communications, I
 1239      471           803      Sprint 
  690      456           460      Merit Network 
 7046      449           623      UUNET Technologies, Inc. 
    1      428           828      BBN Planet 
  852      376           616      Telus Advanced Communications
  209      358           537      Qwest 
 2764      343           387      connect.com.au pty ltd
  703      327           403      UUNET Technologies, Inc. 
  705      323           377      UUNET Technologies, Inc. 
 3549      306           438      Global Crossing 
 2149      296           389      Performance Systems, Inc. 
 6197      275           328      BellSouth Network Solutions, 
 7066      275           304      Virginia Polytechnic Institut
11371      272           278      Rhythms NetConnections 

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

   4:1         9:1        12:478      13:10       15:1        17:5      
  20:5        24:664      25:1        32:68       38:9        40:6      
  44:1        57:14       61:222      62:165      63:1880     64:1100   
  65:1035     66:677      67:33       68:5        80:185      81:4      
 128:60      129:120     130:24      131:52      132:11      133:3      
 134:129     135:10      136:239     137:102     138:148     139:47     
 140:163     141:61      142:67      143:39      144:154     145:10     
 146:217     147:151     148:146     149:93      150:41      151:45     
 152:311     153:32      154:8       155:81      156:77      157:119    
 158:81      159:88      160:24      161:55      162:101     163:115    
 164:94      165:124     166:222     167:167     168:117     169:48     
 170:293     171:2       192:5432    193:2194    194:2018    195:787    
 196:440     198:3738    199:3256    200:2307    201:1       202:2996   
 203:4489    204:3305    205:2160    206:2525    207:2614    208:2580   
 209:2823    210:515     211:146     212:883     213:556     214:9      
 215:18      216:2969    217:423     218:10     

End of report
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