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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 04 Feb, 2002

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

BGP routing table entries examined:                            108624
    Prefixes after maximum aggregation:                         72000
    Unique aggregates announced to Internet:                    52601
Total ASes present in the Internet Routing Table:               12485
Origin-only ASes present in the Internet Routing Table:         10817
Origin ASes announcing only one prefix:                          4716
Transit ASes present in the Internet Routing Table:              1668
Transit-only ASes present in the Internet Routing Table:           62
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    20
Illegal AS announcements present in the Routing Table:             35
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    14
Number of addresses announced to Internet:                 1163974152
    Equivalent to 69 /8s, 96 /16s and 214 /24s
    Percentage of available address space announced:             31.4
    Percentage of allocated address space announced:             59.4
    Percentage of available address space allocated:             52.8
Total number of prefixes smaller than registry allocations:     72676

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

Prefixes being announced by APNIC Region ASes:                  17558
    Total APNIC prefixes after maximum aggregation:             10635
Prefixes being announced from the APNIC address blocks:         16013
    Unique aggregates announced from the APNIC address blocks:   9832
APNIC Region origin ASes present in the Internet Routing Table:  1438
APNIC Region origin ASes announcing only one prefix:              477
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:             79082816
    Equivalent to 4 /8s, 182 /16s and 181 /24s
    Percentage of available APNIC address space announced:       58.5

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:                   72980
    Total ARIN prefixes after maximum aggregation:              47316
Prefixes being announced from the ARIN address blocks:          51178
    Unique aggregates announced from the ARIN address blocks:   17148
ARIN Region origin ASes present in the Internet Routing Table:   7386
ARIN Region origin ASes announcing only one prefix:              2287
ARIN Region transit ASes present in the Internet Routing Table:   753
Average ARIN Region AS path length visible:                       5.3
    Max ARIN Region AS path length visible:                        20
Number of ARIN addresses announced to Internet:             185408580
    Equivalent to 11 /8s, 13 /16s and 28 /24s
    Percentage of available ARIN address space announced:        69.1

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:                   18086
    Total RIPE prefixes after maximum aggregation:              14049
Prefixes being announced from the RIPE address blocks:          14862
    Unique aggregates announced from the RIPE address blocks:    9880
RIPE Region origin ASes present in the Internet Routing Table:   3598
RIPE Region origin ASes announcing only one prefix:              1952
RIPE Region transit ASes present in the Internet Routing Table:   650
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        15
Number of RIPE addresses announced to Internet:             106586112
    Equivalent to 6 /8s, 90 /16s and 96 /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     1333       1260         974   Telstra Pty Ltd
 4538      451       1162          16   China Education and Research 
 2907      395       1893         364   SINET Japan
  703      394        367         296   UUNET Technologies, Inc. 
 2764      394        362         370   connect.com.au pty ltd
 4755      300        113          87   Videsh Sanchar Nigam Ltd. Aut
 7474      300        286         204   Optus Communications Pty Ltd
 4134      268       1858         100   Data Communications Bureau
 9394      225        112           3   CHINA RAILWAY Internet(CRNET)
 4766      206       1393         145   Korea Internet Exchange for "
17557      203         15          88   Pakistan Telecom
 9443      160         44          59   Primus Telecommunications
 7539      153        137         148   TANet2, sponsored by NSC, TAI
 9768      145        385          88   Korea Telecom
 1659      142        924          34   Taiwan Academic Network (TANe
 4740      142         34         116   OzEmail ISP
 4197      139         13           5   Global OnLine Japan K.K.
 9583      138         32           5   Satyam Infoway Ltd.,
 7657      119         21          82   The Internet Group Limited
 4713      116        898         102   NTT Communications Corporatio

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1109       2621         862   UUNET Technologies, Inc. 
 3301      405        924         358   TeliaNet Sweden
 1257      253        487         249   SWIPnet Swedish IP Network
 3215      240        562         153   France Telecom / &Equant
  680      233       2148         231   DFN-IP service G-WiN
 5515      218        705         175   Sonera Finland Autonomous Sys
 5400      199         82          96   Concert European Core Network
 3320      195       1964         171   Deutsche Telekom AG
  786      182       1874         182   The JANET IP Service
  719      165        289         119   LANLINK autonomous system
 8708      154         21         142   Romania Data Systems S.A.
 2856      131        790         120   BTnet UK Regional network
 3303      124        575         124   Swisscom Ltd
 3269      118        695          72   TELECOM ITALIA
 8297      117         40          66   Teleglobe Autonomous System i
12302      115          7          36   MobiFon S.A.
  517      103        227         101   KPNQwest Germany GmbH
 5603       95         13          60   SiOL Internet d.o.o.
 5511       93        192          82   France Telecom
 1267       91       1471          41   Infostrada S.p.A.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     2083       8318        1502   UUNET Technologies, Inc. 
 7018     1740       7511         979   AT&T 
    1      840       8153         611   BBN Planet 
 3908      809       1662         470   Supernet, Inc. 
 1239      781       3230         608   Sprint 
 7046      625        849         412   UUNET Technologies, Inc. 
 4323      611        430         222   Time Warner Communications, I
  852      562        994         365   Telus Advanced Communications
  209      521       1876         298   Qwest 
  690      492         72         307   Merit Network 
 2914      454       2197         423   Verio, Inc. 
 7132      452        504         162   Southwestern Bell Internet Se
 3549      424        819         215   Global Crossing 
  705      397        109         275   UUNET Technologies, Inc. 
 2149      389        226         326   Performance Systems, Inc. 
 2386      388        361         236   AT&T Data Communications Serv
 3561      371       2221         326   Cable & Wireless USA 
  577      351        604         219   Bell Advanced Communications 
 3741      349        731         240   The Internet Solution 
 6197      324        263         166   BellSouth Network Solutions, 

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

  ASN   No of nets  Net Savings Description
 7018      1740         761      AT&T 
 4538       451         435      China Education and Research 
 4323       611         389      Time Warner Communications, I
 1221      1333         359      Telstra Pty Ltd
 3908       809         339      Supernet, Inc. 
 4151       310         294      USDA 
 7132       452         290      Southwestern Bell Internet Se
11371       278         271      Rhythms NetConnections 
  702      1109         247      UUNET Technologies, Inc. 
 6347       311         232      SAVVIS Communications Corpora
    1       840         229      BBN Planet 
 7843       264         227      Adelphia Corp. 
  209       521         223      Qwest 
 9394       225         222      CHINA RAILWAY Internet(CRNET)
 7046       625         213      UUNET Technologies, Inc. 
 4755       300         213      Videsh Sanchar Nigam Ltd. Aut
 3549       424         209      Global Crossing 
 4355       235         204      EarthLink, Inc. 
 1580       208         199      HQ, 5th Signal Command 
  852       562         197      Telus Advanced Communications

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

Bad AS  Designation  Network              Transit AS  Description
23103   UNALLOCATED   12.147.166.0/24       7018       AT&T 
22976   UNALLOCATED   63.102.164.0/22        209       Qwest 
22976   UNALLOCATED   63.102.165.0/24        701       UUNET Technologies, 
22976   UNALLOCATED   63.102.166.0/24        701       UUNET Technologies, 
22790   UNALLOCATED   64.29.112.0/20        6467       E.Spire Communicatio
23166   UNALLOCATED   64.71.184.0/24        6939       Hurricane Electric 
23166   UNALLOCATED   64.84.40.0/24        10738       MasterLink Inc. 
23109   UNALLOCATED   64.241.52.0/24       10910       InterNAP Network Ser
23125   UNALLOCATED   65.192.95.0/24        1239       Sprint 
23089   UNALLOCATED   65.215.97.0/24           1       BBN Planet 
21468   UNALLOCATED   80.243.224.0/23       6739       Cableuropa - ONO
21450   UNALLOCATED   80.246.128.0/20       8584       Barak AS
24578   UNALLOCATED   81.16.0.0/20         21414       Autonomous System of
23098   UNALLOCATED   144.9.72.0/24        12179       InterNAP Network Ser
23098   UNALLOCATED   144.9.73.0/24        12179       InterNAP Network Ser
 1877   UNALLOCATED   192.108.201.0/24      1880       Stupi, house man's p
24579   UNALLOCATED   193.110.89.0/24       5377       Taide, Commercial IP
24581   UNALLOCATED   193.110.116.0/22       702       UUNET Technologies, 
24610   UNALLOCATED   193.110.124.0/22     15772       WNET Autonomous Syst
24593   UNALLOCATED   193.110.162.0/23      6877       UTEL Network Autonom
24617   UNALLOCATED   195.29.168.0/24      13046       ISKON
22784   UNALLOCATED   198.31.101.0/24      19116       airBand Communicatio
22732   UNALLOCATED   198.187.135.0/24      3908       Supernet, Inc. 
22732   UNALLOCATED   198.187.215.0/24      3908       Supernet, Inc. 
22732   UNALLOCATED   198.187.216.0/24      3908       Supernet, Inc. 
22629   UNALLOCATED   199.96.16.0/21        8057       Vision Net, Inc. 
22629   UNALLOCATED   199.96.24.0/22        8057       Vision Net, Inc. 
22336   UNALLOCATED   205.242.9.0/24         701       UUNET Technologies, 
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
22793   UNALLOCATED   207.53.145.0/24      19120       ARGIA 
22109   UNALLOCATED   208.0.49.0/24         6453       Teleglobe Inc. 
23160   UNALLOCATED   208.28.136.0/24       1239       Sprint 
21193   UNALLOCATED   213.176.160.0/19      8903       BT Tel AS 1
23166   UNALLOCATED   216.218.195.0/24      6939       Hurricane Electric 
17939   UNALLOCATED   218.216.32.0/19       2497       IIJ

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
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      /14:232     /15:393     /16:7153    /17:1418    /18:2489    
/19:7331    /20:6677    /21:4821    /22:7293    /23:8970    /24:60654   
/25:220     /26:270     /27:129     /28:96      /29:99      /30:167     
/31:0       /32:41      

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

  ASN   No of nets  Total ann.   Description
  701     1332          2083      UUNET Technologies, Inc. 
 1221     1184          1333      Telstra Pty Ltd
 7018     1146          1740      AT&T 
  702      732          1109      UUNET Technologies, Inc. 
 3908      563           809      Supernet, Inc. 
 4323      496           611      Time Warner Communications, I
  690      488           492      Merit Network 
 1239      458           781      Sprint 
 7046      454           625      UUNET Technologies, Inc. 
    1      434           840      BBN Planet 
 2764      350           394      connect.com.au pty ltd
  852      345           562      Telus Advanced Communications
  209      343           521      Qwest 
  705      338           397      UUNET Technologies, Inc. 
  703      314           394      UUNET Technologies, Inc. 
 2386      312           388      AT&T Data Communications Serv
 2149      293           389      Performance Systems, Inc. 
 3549      293           424      Global Crossing 
 7066      275           304      Virginia Polytechnic Institut
11371      272           278      Rhythms NetConnections 

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

   4:2         9:1        12:735      13:10       15:1        17:5      
  20:5        24:688      25:1        32:180      38:12       40:6      
  44:1        57:14       61:215      62:161      63:1876     64:1097   
  65:1012     66:621      67:32       68:5        80:168      81:4      
 128:64      129:125     130:23      131:51      132:11      133:2      
 134:128     135:10      136:245     137:105     138:146     139:46     
 140:162     141:61      142:65      143:39      144:151     145:12     
 146:214     147:138     148:144     149:86      150:38      151:43     
 152:369     153:32      154:8       155:81      156:77      157:120    
 158:72      159:88      160:23      161:55      162:96      163:125    
 164:94      165:126     166:227     167:163     168:118     169:47     
 170:291     171:4       192:5436    193:2222    194:2040    195:813    
 196:447     198:3730    199:3254    200:2321    201:1       202:2906   
 203:4549    204:3304    205:2145    206:2586    207:2617    208:2586   
 209:2890    210:532     211:151     212:907     213:593     214:9      
 215:19      216:2973    217:436     218:10     

End of report
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