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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 05 Dec, 2001

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

BGP routing table entries examined:                            107611
Total ASes present in the Internet Routing Table:               12207
Origin-only ASes present in the Internet Routing Table:         10589
Origin ASes announcing only one prefix:                          4559
Transit ASes present in the Internet Routing Table:              1618
Transit-only ASes present in the Internet Routing Table:           59
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:             13
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    17
Number of addresses announced to Internet:                 1278644503
    Equivalent to 76 /8s, 54 /16s and 145 /24s
    Percentage of available address space announced:             34.5
    Percentage of allocated address space announced:             65.9
    Percentage of available address space allocated:             52.4
Total number of prefixes smaller than registry allocations:     72521

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

Prefixes being announced by APNIC Region ASes:                  16918
Prefixes being announced from the APNIC address blocks:         15436
APNIC Region origin ASes present in the Internet Routing Table:  1413
APNIC Region origin ASes announcing only one prefix:              462
APNIC Region transit ASes present in the Internet Routing Table:  243
Average APNIC Region AS path length visible:                      5.1
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:             89536200
    Equivalent to 5 /8s, 86 /16s and 54 /24s
    Percentage of available APNIC address space announced:       75.6

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

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

Prefixes being announced by ARIN Region ASes:                   72836
Prefixes being announced from the ARIN address blocks:          52178
ARIN Region origin ASes present in the Internet Routing Table:   7245
ARIN Region origin ASes announcing only one prefix:              2218
ARIN Region transit ASes present in the Internet Routing Table:   741
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             239162554
    Equivalent to 14 /8s, 65 /16s and 84 /24s
    Percentage of available ARIN address space announced:        89.1

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:                   17850
Prefixes being announced from the RIPE address blocks:          14537
RIPE Region origin ASes present in the Internet Routing Table:   3492
RIPE Region origin ASes announcing only one prefix:              1879
RIPE Region transit ASes present in the Internet Routing Table:   621
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        15
Number of RIPE addresses announced to Internet:             111172532
    Equivalent to 6 /8s, 160 /16s and 91 /24s
    Percentage of available RIPE address space announced:        73.6

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
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  Description
 1221     1531       1328       Telstra Pty Ltd
 2764      391        356       connect.com.au pty ltd
  703      385        347       UUNET Technologies, Inc. 
 2907      371       1863       SINET Japan
 7474      306        287       Optus Communications Pty Ltd
 4755      302        159       Videsh Sanchar Nigam Ltd. Aut
 4134      257       1940       Data Communications Bureau
 4766      184       1435       Korea Internet Exchange for "
 4740      177         40       OzEmail ISP
 9443      173         62       Primus Telecommunications
 2521      168        172       PSINet Japan
 1659      164       1124       Taiwan Academic Network (TANe
17557      162         13       Pakistan Telecom
 9583      154         48       Satyam Infoway Ltd.,
 4812      137        305       China Telecom (Group) - Shang
 7539      135        134       TANet2, sponsored by NSC, TAI
 4786      129         15       NetConnect Communications Pty
 9768      127        362       Korea Telecom
17676      125       1952       XTAGE CORPORATION
 4713      121        944       NTT Communications Corporatio

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

  ASN   No of nets  /20 equiv  Description
  702     1097       2763       UUNET Technologies, Inc. 
 3301      430        934       TeliaNet Sweden
 1257      269        500       SWIPnet Swedish IP Network
 3215      237        543       France Telecom / &Equant
  680      232       2149       DFN-IP service G-WiN
 5515      212        705       Sonera Finland Autonomous Sys
 3320      189       1960       Deutsche Telekom AG
  786      183       1874       The JANET IP Service
  719      164        292       LANLINK autonomous system
 8708      150         21       Romania Data Systems S.A.
 5400      147         65       Concert European Core Network
 3246      141        191       Song Networks / Clinet
 2856      134        777       BTnet UK Regional network
 3303      133        577       Swisscom Ltd
 5549      121         82       Nextra Deutschland GmbH + Co.
  517      111        248       KPNQwest Germany GmbH
12302      110          7       MobiFon S.A.
 3269      105        799       TELECOM ITALIA
 1290       98        398       PSINet UK Ltd.
 8297       97         30       Teleglobe Autonomous System i

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

  ASN   No of nets  /20 equiv  Description
  701     2168       9075       UUNET Technologies, Inc. 
 7018     1095       7363       AT&T 
 3967     1017        467       Exodus Communication 
    1      855       8503       BBN Planet 
 1239      751       3382       Sprint 
 7046      721        888       UUNET Technologies, Inc. 
 8010      719        106       PublicNet Communications, Inc
 3908      699       1581       Supernet, Inc. 
  209      611       2232       Qwest 
 4323      586        477       Time Warner Communications, I
  852      544        695       Telus Advanced Communications
  690      508         88       Merit Network 
 2914      481       2253       Verio, Inc. 
  705      459        267       UUNET Technologies, Inc. 
 2149      427        232       Performance Systems, Inc. 
 3549      407        888       Global Crossing 
 3561      387       2294       Cable & Wireless USA 
 7132      386        534       Southwestern Bell Internet Se
 3741      350        766       The Internet Solution 
  577      349        625       Bell Advanced Communications 

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  Description
  701     2168       9075       UUNET Technologies, Inc. 
 1221     1531       1328       Telstra Pty Ltd
  702     1097       2763       UUNET Technologies, Inc. 
 7018     1095       7363       AT&T 
 3967     1017        467       Exodus Communication 
    1      855       8503       BBN Planet 
 1239      751       3382       Sprint 
 7046      721        888       UUNET Technologies, Inc. 
 8010      719        106       PublicNet Communications, Inc
 3908      699       1581       Supernet, Inc. 
  209      611       2232       Qwest 
 4323      586        477       Time Warner Communications, I
  852      544        695       Telus Advanced Communications
  690      508         88       Merit Network 
 2914      481       2253       Verio, Inc. 
  705      459        267       UUNET Technologies, Inc. 
 3301      430        934       TeliaNet Sweden
 2149      427        232       Performance Systems, Inc. 
 3549      407        888       Global Crossing 
 2764      391        356       connect.com.au pty ltd

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

Bad AS  Designation  Network              Transit AS  Description
22830   UNALLOCATED   66.100.87.0/24        6347       SAVVIS Communication
 2027   UNALLOCATED   150.185.128.0/18      8143       Publicom Corp. 
65025   PRIVATE       168.95.70.0/24        3462       Data Communication B
65025   PRIVATE       168.95.71.0/24        3462       Data Communication B
65025   PRIVATE       168.95.86.32/27       3462       Data Communication B
65026   PRIVATE       168.95.86.128/27      3462       Data Communication B
65026   PRIVATE       168.95.160.0/24       3462       Data Communication B
65026   PRIVATE       168.95.161.0/24       3462       Data Communication B
22830   UNALLOCATED   206.153.0.0/24        6347       SAVVIS Communication
22830   UNALLOCATED   206.153.21.0/24       6347       SAVVIS Communication
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
65515   PRIVATE       212.110.142.0/24      5593       CRIS-AS
17940   UNALLOCATED   218.45.0.0/20         4713       NTT Communications C

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
68.1.0.0/17          22773     Cox Communications, Inc. Atla
68.1.128.0/18        22773     Cox Communications, Inc. Atla
132.0.0.0/10           568     DISO-UNRRA 
134.137.0.0/16         400     Headquarters Standard Systems
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. 
153.34.0.0/15          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
191.9.200.0/24        1290     PSINet UK Ltd.
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        /8:19       /9:5       /10:7       /11:12      /12:37      
/13:89      /14:221     /15:386     /16:7081    /17:1361    /18:2456    
/19:7105    /20:6184    /21:4705    /22:7081    /23:8836    /24:60570   
/25:322     /26:317     /27:245     /28:212     /29:130     /30:171     
/31:0       /32:59      

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

  ASN   No of nets  Total ann.   Description
  701     1386          2168      UUNET Technologies, Inc. 
 1221     1385          1531      Telstra Pty Ltd
 3967      835          1017      Exodus Communication 
  702      712          1097      UUNET Technologies, Inc. 
 8010      703           719      PublicNet Communications, Inc
 7018      565          1095      AT&T 
 7046      557           721      UUNET Technologies, Inc. 
  690      504           508      Merit Network 
 4323      496           586      Time Warner Communications, I
 3908      474           699      Supernet, Inc. 
  209      439           611      Qwest 
    1      426           855      BBN Planet 
 1239      421           751      Sprint 
  852      365           544      Telus Advanced Communications
  705      360           459      UUNET Technologies, Inc. 
 2764      349           391      connect.com.au pty ltd
 2149      324           427      Performance Systems, Inc. 
  703      310           385      UUNET Technologies, Inc. 
 4151      281           327      USDA 
 3549      277           407      Global Crossing 

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

   4:3         9:1        12:430      13:10       15:1        17:5      
  20:1        24:864      25:1        26:1        32:73       38:13     
  40:1        43:1        44:2        52:1        53:2        57:12     
  61:144      62:150      63:1921     64:1483     65:975      66:738    
  67:8        80:108     128:61      129:112     130:23      131:44     
 132:14      133:2       134:138     135:10      136:107     137:116    
 138:63      139:30      140:98      141:59      142:68      143:43     
 144:56      145:13      146:216     147:90      148:129     149:87     
 150:41      151:38      152:392     153:37      154:6       155:85     
 156:83      157:114     158:69      159:74      160:45      161:54     
 162:83      163:130     164:120     165:97      166:205     167:162    
 168:121     169:46      170:303     171:2       191:1       192:5374   
 193:2065    194:2083    195:835     196:433     198:3757    199:3316   
 200:2393    201:1       202:2862    203:4569    204:3309    205:2151   
 206:2617    207:2670    208:2720    209:2939    210:588     211:145    
 212:951     213:538     214:9       215:15      216:2966    217:421    
 218:7      

End of report
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