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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 Mon 20 May, 2002

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

BGP routing table entries examined:                            112392
    Prefixes after maximum aggregation:                         73266
    Unique aggregates announced to Internet:                    53257
Total ASes present in the Internet Routing Table:               13090
Origin-only ASes present in the Internet Routing Table:         11351
Origin ASes announcing only one prefix:                          4984
Transit ASes present in the Internet Routing Table:              1739
Transit-only ASes present in the Internet Routing Table:           52
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:              3
Non-routable prefixes present in the Routing Table:                 1
Prefixes being announced from the IANA Reserved Address blocks:    40
Number of addresses announced to Internet:                 1174110908
    Equivalent to 69 /8s, 251 /16s and 130 /24s
    Percentage of available address space announced:             31.7
    Percentage of allocated address space announced:             59.0
    Percentage of available address space allocated:             53.7
Total number of prefixes smaller than registry allocations:     45394

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

Prefixes being announced by APNIC Region ASes:                  18041
    Total APNIC prefixes after maximum aggregation:             10914
Prefixes being announced from the APNIC address blocks:         16549
    Unique aggregates announced from the APNIC address blocks:  10279
APNIC Region origin ASes present in the Internet Routing Table:  1509
APNIC Region origin ASes announcing only one prefix:              499
APNIC Region transit ASes present in the Internet Routing Table:  268
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       17
Number of APNIC addresses announced to Internet:             84710848
    Equivalent to 5 /8s, 12 /16s and 149 /24s
    Percentage of available APNIC address space announced:       62.6

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:                   75492
    Total ARIN prefixes after maximum aggregation:              47988
Prefixes being announced from the ARIN address blocks:          53762
    Unique aggregates announced from the ARIN address blocks:   16840
ARIN Region origin ASes present in the Internet Routing Table:   7729
ARIN Region origin ASes announcing only one prefix:              2444
ARIN Region transit ASes present in the Internet Routing Table:   752
Average ARIN Region AS path length visible:                       5.3
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             192230596
    Equivalent to 11 /8s, 117 /16s and 52 /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 - 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:                   18859
    Total RIPE prefixes after maximum aggregation:              14364
Prefixes being announced from the RIPE address blocks:          15556
    Unique aggregates announced from the RIPE address blocks:   10379
RIPE Region origin ASes present in the Internet Routing Table:   3800
RIPE Region origin ASes announcing only one prefix:              2041
RIPE Region transit ASes present in the Internet Routing Table:   701
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             109544240
    Equivalent to 6 /8s, 135 /16s and 131 /24s
    Percentage of available RIPE address space announced:        72.5

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     1271       1223         914   Telstra Pty Ltd
 4538      478       1194          17   China Education and Research 
 2907      429       1877         370   SINET Japan
  703      403        337         324   UUNET Technologies, Inc. 
 2764      395        359         362   connect.com.au pty ltd
 7474      308        291         206   Optus Communications Pty Ltd
17557      284         19         116   Pakistan Telecom
 4134      281       2060          95   Data Communications Bureau
 9443      272         44          63   Primus Telecommunications
 4755      253        109          74   Videsh Sanchar Nigam Ltd. Aut
 4766      224       1518         156   Korea Internet Exchange for "
 9583      177         32           5   Satyam Infoway Ltd.,
 7539      153        218         147   TANet2, sponsored by NSC, TAI
 9768      146        386          80   Korea Telecom
 7657      131         22          87   The Internet Group Limited
 4814      127         66          13   China Telecom (Group) - Beiji
17676      125       1954          10   XTAGE CORPORATION
 4780      118        186          39   Digital United Inc.
 4713      114        993         105   NTT Communications Corporatio
 9800      114        186          22   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1021       2608         846   UUNET Technologies, Inc. 
 3301      392        908         345   TeliaNet Sweden
 5515      275        776         181   Sonera Finland Autonomous Sys
 3215      264        581         163   France Telecom / &Equant
 3320      233       1947         180   Deutsche Telekom AG
  680      231       2149         230   DFN-IP service G-WiN
 1257      208        430         205   SWIPnet Swedish IP Network
 5400      200         83          95   Concert European Core Network
  786      182       1874         182   The JANET IP Service
  719      168        289         120   LANLINK autonomous system
 8708      146         22         140   Romania Data Systems S.A.
12302      131          9          47   MobiFon S.A.
 2856      125        785         115   BTnet UK Regional network
 3303      117        546         115   Swisscom Ltd
 3269      115        694          71   TELECOM ITALIA
 8297      115         57          64   Teleglobe Autonomous System i
 5511      111        191          92   France Telecom
  517      101        226          97   KPNQwest Germany GmbH
 2830      100        252          76   UUNET Dual-Homed customers
 2874       97         84          37   Global One Services AB

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     2094       8380        1455   UUNET Technologies, Inc. 
 7018     1289       7574         938   AT&T 
 3908      892       1644         487   Supernet, Inc. 
 1239      822       3409         664   Sprint 
    1      809       8169         454   BBN Planet 
  852      742       1174         448   Telus Advanced Communications
 7046      685        871         473   UUNET Technologies, Inc. 
 4323      631        436         257   Time Warner Communications, I
  209      581       1967         323   Qwest 
 7132      568        606         136   Southwestern Bell Internet Se
  690      564         82         366   Merit Network 
 3549      518        854         323   Global Crossing 
 7843      501        365          52   Adelphia Corp. 
 7066      475        202         248   Virginia Polytechnic Institut
 2914      399       2110         390   Verio, Inc. 
  705      368         99         260   UUNET Technologies, Inc. 
 3741      344        731         236   The Internet Solution 
 2149      341        191         283   Performance Systems, Inc. 
 4293      341         84         264   Cable & Wireless USA 
 6197      341        260         164   BellSouth Network Solutions, 

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

  ASN   No of nets  Net Savings Description
 4538       478         461      China Education and Research 
 7843       501         449      Adelphia Corp. 
 7132       568         432      Southwestern Bell Internet Se
 3908       892         405      Supernet, Inc. 
 4323       631         374      Time Warner Communications, I
 1221      1271         357      Telstra Pty Ltd
    1       809         355      BBN Planet 
 7018      1289         351      AT&T 
  852       742         294      Telus Advanced Communications
11371       292         286      Rhythms NetConnections 
 4151       300         284      USDA 
  209       581         258      Qwest 
 6347       337         258      SAVVIS Communications Corpora
 7029       261         246      Alltel Information Services, 
 4355       277         239      EarthLink, Inc. 
 7066       475         227      Virginia Polytechnic Institut
 7046       685         212      UUNET Technologies, Inc. 
 6198       313         209      BellSouth Network Solutions, 
 9443       272         209      Primus Telecommunications
18566       211         207      Covad Communications 

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

Bad AS  Designation  Network              Transit AS  Description
25780   UNALLOCATED   198.153.131.0/24         1       BBN Planet 
25780   UNALLOCATED   198.153.231.0/24         1       BBN Planet 
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
192.0.2.0/24          1103     SURFnet BV

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     BBN Planet 
153.147.0.0/16        3561     Cable & Wireless USA 
154.150.0.0/16        6494     IDCI 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
192.31.126.0/23       1103     SURFnet BV
192.31.128.0/21       1103     SURFnet BV
192.44.0.0/19          702     UUNET Technologies, Inc. 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.83.14.0/24        5515     Sonera Finland Autonomous Sys
192.83.16.0/20        5515     Sonera Finland Autonomous Sys
192.83.25.0/24        5515     Sonera Finland Autonomous Sys
192.83.32.0/19        5515     Sonera Finland Autonomous Sys
192.83.96.0/22        5515     Sonera Finland Autonomous Sys
192.83.100.0/24       5515     Sonera Finland Autonomous Sys
192.91.198.0/24       2568     CTS Network Services 
192.92.167.0/24        297     NASA Science Network 
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
192.135.248.0/23       109     Cisco Systems, Inc. 
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
192.152.213.0/24      1239     Sprint 
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        /8:19       /9:6       /10:7       /11:13      /12:32      
/13:85      /14:232     /15:407     /16:7195    /17:1437    /18:2573    
/19:7527    /20:7120    /21:5060    /22:7762    /23:9376    /24:62727   
/25:211     /26:181     /27:86      /28:97      /29:46      /30:117     
/31:0       /32:76      

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

  ASN   No of nets  Total ann.   Description
  701      665          2094      UUNET Technologies, Inc. 
  702      629          1021      UUNET Technologies, Inc. 
 3908      481           892      Supernet, Inc. 
  690      455           564      Merit Network 
 7066      380           475      Virginia Polytechnic Institut
 7018      334          1289      AT&T 
 7046      316           685      UUNET Technologies, Inc. 
 7843      290           501      Adelphia Corp. 
  209      267           581      Qwest 
    1      252           809      BBN Planet 
 7029      246           261      Alltel Information Services, 
 6197      245           341      BellSouth Network Solutions, 
11371      245           292      Rhythms NetConnections 
 3301      237           392      TeliaNet Sweden
 6198      231           313      BellSouth Network Solutions, 
 4293      219           341      Cable & Wireless USA 
 3549      216           518      Global Crossing 
 6517      216           238      Yipes Communications, Inc. 
 1239      214           822      Sprint 
18566      207           211      Covad Communications 

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

   4:3         9:1        12:508      13:10       15:2        17:7      
  20:2        24:767      25:1        32:40       38:8        40:6      
  44:1        57:13       61:219      62:202      63:1978     64:1196   
  65:1404     66:919      67:78       68:12       80:237      81:26     
 128:59      129:133     130:23      131:47      132:13      133:3      
 134:118     135:9       136:255     137:93      138:150     139:56     
 140:173     141:120     142:78      143:38      144:148     145:11     
 146:175     147:135     148:169     149:93      150:41      151:60     
 152:270     153:33      154:10      155:101     156:75      157:128    
 158:69      159:127     160:18      161:64      162:146     163:100    
 164:272     165:145     166:229     167:170     168:121     169:56     
 170:343     171:2       192:5470    193:2329    194:2104    195:822    
 196:411     198:3692    199:3238    200:2526    202:3158    203:4560   
 204:3251    205:2171    206:2619    207:2681    208:2825    209:2722   
 210:598     211:224     212:880     213:608     214:9       215:18     
 216:3015    217:459     218:18     

End of report
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