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Weekly Routing Table Report



This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net

For a graphical representation, please see http://www.apnic.net/stats/bgp.

If you have any comments please contact Philip Smith <pfs at cisco.com>.

Routing Table Report   04:00 16 Nov, 2001

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

BGP routing table entries examined:                            108641
Total ASes present in the Internet Routing Table:               12085
Origin-only ASes present in the Internet Routing Table:         10493
Origin ASes announcing only one prefix:                          4496
Transit ASes present in the Internet Routing Table:              1592
Transit-only ASes present in the Internet Routing Table:           54
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    16
Illegal AS announcements present in the Routing Table:             77
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:                 1259668207
    Equivalent to 75 /8s, 21 /16s and 2 /24s
    Percentage of available address space announced:             34.0
    Percentage of allocated address space announced:             64.9
    Percentage of available address space allocated:             52.4
Total number of prefixes smaller than registry allocations:     73802

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

Prefixes being announced by APNIC Region ASes:                  16883
Prefixes being announced from the APNIC address blocks:         15385
APNIC Region origin ASes present in the Internet Routing Table:  1402
APNIC Region origin ASes announcing only one prefix:              459
APNIC Region transit ASes present in the Internet Routing Table:  238
Average APNIC Region AS path length visible:                      5.2
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:             88682394
    Equivalent to 5 /8s, 73 /16s and 47 /24s
    Percentage of available APNIC address space announced:       74.8

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:                   73914
Prefixes being announced from the ARIN address blocks:          52725
ARIN Region origin ASes present in the Internet Routing Table:   7185
ARIN Region origin ASes announcing only one prefix:              2200
ARIN Region transit ASes present in the Internet Routing Table:   734
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             221094042
    Equivalent to 13 /8s, 45 /16s and 160 /24s
    Percentage of available ARIN address space announced:        82.4

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:                   17843
Prefixes being announced from the RIPE address blocks:          14474
RIPE Region origin ASes present in the Internet Routing Table:   3449
RIPE Region origin ASes announcing only one prefix:              1837
RIPE Region transit ASes present in the Internet Routing Table:   606
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        15
Number of RIPE addresses announced to Internet:             110145544
    Equivalent to 6 /8s, 144 /16s and 176 /24s
    Percentage of available RIPE address space announced:        72.9

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     1540       1303       Telstra Pty Ltd
 2764      404        357       connect.com.au pty ltd
  703      397        360       UUNET Technologies, Inc. 
 2907      372       1848       SINET Japan
 4755      360        169       Videsh Sanchar Nigam Ltd. Aut
 7474      299        275       Optus Communications Pty Ltd
 4134      255       1924       Data Communications Bureau
 4766      184       1431       Korea Internet Exchange for "
 4740      169         24       OzEmail ISP
17676      168       1957       XTAGE CORPORATION
 9443      166         53       Primus Telecommunications
 1659      165       1157       Taiwan Academic Network (TANe
17557      151         12       Pakistan Telecom
 7539      146        145       TANet2, sponsored by NSC, TAI
 9583      139         47       Satyam Infoway Ltd.,
 4812      137        305       China Telecom (Group) - Shang
 2521      136        171       PSINet Japan
 4786      131         15       NetConnect Communications Pty
 9768      128        362       Korea Telecom
 7657      121         23       The Internet Group Limited

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

  ASN   No of nets  /20 equiv  Description
  702     1082       2146       UUNET Technologies, Inc. 
 3301      432        949       TeliaNet Sweden
 1257      268        500       SWIPnet Swedish IP Network
 3215      234        568       France Telecom / &Equant
  680      231       2148       DFN-IP service G-WiN
 5515      197        688       Sonera Finland Autonomous Sys
 3320      196       1959       Deutsche Telekom AG
  786      183       1890       The JANET IP Service
 8708      167         17       Romania Data Systems S.A.
 5400      138         64       Concert European Core Network
  719      134        289       LANLINK autonomous system
 2856      133        777       BTnet UK Regional network
 3303      131        560       Swisscom Ltd
 5549      121         82       Nextra Deutschland GmbH + Co.
  517      112        248       KPNQwest Germany GmbH
12302      108          7       MobiFon S.A.
 1273      107        165       Cable & Wireless ECRC GmbH
 3269      105        808       TELECOM ITALIA
 1290      100        398       PSINet UK Ltd.
 8297       99         31       Teleglobe Autonomous System i

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

  ASN   No of nets  /20 equiv  Description
  701     2241       9163       UUNET Technologies, Inc. 
 7018     1088       7318       AT&T 
 3967     1056        483       Exodus Communication 
    1      842       8520       BBN Planet 
 7046      817        972       UUNET Technologies, Inc. 
 8010      718         98       PublicNet Communications, Inc
 1239      716       3352       Sprint 
 3908      682       1516       Supernet, Inc. 
  209      577       2213       Qwest 
  852      542        707       Telus Advanced Communications
 4323      507        413       Time Warner Communications, I
  690      498         71       Merit Network 
 2149      481        333       Performance Systems, Inc. 
 2914      472       2269       Verio, Inc. 
 4293      447        113       Cable & Wireless USA 
  705      426        249       UUNET Technologies, Inc. 
 3549      395        888       Global Crossing 
 3561      379       2303       Cable & Wireless USA 
 4151      365       1254       USDA 
 3741      348        765       The Internet Solution 

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

  ASN   No of nets  /20 equiv  Description
  701     2241       9163       UUNET Technologies, Inc. 
 1221     1540       1303       Telstra Pty Ltd
 7018     1088       7318       AT&T 
  702     1082       2146       UUNET Technologies, Inc. 
 3967     1056        483       Exodus Communication 
    1      842       8520       BBN Planet 
 7046      817        972       UUNET Technologies, Inc. 
 8010      718         98       PublicNet Communications, Inc
 1239      716       3352       Sprint 
 3908      682       1516       Supernet, Inc. 
  209      577       2213       Qwest 
  852      542        707       Telus Advanced Communications
 4323      507        413       Time Warner Communications, I
  690      498         71       Merit Network 
 2149      481        333       Performance Systems, Inc. 
 2914      472       2269       Verio, Inc. 
 4293      447        113       Cable & Wireless USA 
 3301      432        949       TeliaNet Sweden
  705      426        249       UUNET Technologies, Inc. 
 2764      404        357       connect.com.au pty ltd

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

Bad AS  Designation  Network              Transit AS  Description
 8972   UNALLOCATED   62.75.128.0/17        5669       VIA NET.WORKS Inc
 6971   UNALLOCATED   64.42.0.0/20          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.0.0/18          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.16.0/20         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.32.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.40.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.48.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.56.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.60.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.64.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.72.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.76.0/22         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.80.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.88.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.96.0/21         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.104.0/21        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.108.0/22        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.112.0/20        2914       Verio, Inc. 
 6971   UNALLOCATED   64.87.64.0/19         2516       Kokusai Denshin Denw
 6971   UNALLOCATED   66.182.0.0/18         2516       Kokusai Denshin Denw
 2027   UNALLOCATED   150.185.128.0/18      8143       Publicom Corp. 
 6971   UNALLOCATED   192.103.229.0/24      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.230.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.232.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.236.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.237.0/24      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   199.164.144.0/24      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   199.249.223.0/24      2516       Kokusai Denshin Denw
 9541   UNALLOCATED   202.163.64.0/18       8961       Emirates Internet Ex
 9541   UNALLOCATED   202.163.120.0/21      8961       Emirates Internet Ex
65000   PRIVATE       203.21.200.0/24       1221       Telstra Pty Ltd
 6971   UNALLOCATED   204.69.206.0/24       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   205.163.58.0/24       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   206.58.248.0/22       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   206.58.248.0/21       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   207.12.40.0/22        2516       Kokusai Denshin Denw
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
 6971   UNALLOCATED   208.1.124.0/23        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   208.1.200.0/21        2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.105.192.0/20      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.121.224.0/19      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.173.192.0/19      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.192.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.192.0/18       701       UUNET Technologies, 
 6971   UNALLOCATED   216.174.196.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.200.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.202.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.204.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.208.0/20      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.224.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.232.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.240.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.244.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.248.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.252.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/18      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/17      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.136.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.140.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.160.0/21      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.168.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.176.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.184.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.188.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.192.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.200.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.204.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.208.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.216.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.220.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.224.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.232.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.236.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.240.0/20      2914       Verio, Inc. 
 6971   UNALLOCATED   216.229.96.0/20       2516       Kokusai Denshin Denw
 8972   UNALLOCATED   217.172.160.0/19      5669       VIA NET.WORKS Inc

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         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
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       /9:5       /10:7       /11:12      /12:37      
/13:89      /14:220     /15:386     /16:7072    /17:1356    /18:2421    
/19:7053    /20:6035    /21:4747    /22:7120    /23:8933    /24:61536   
/25:333     /26:322     /27:273     /28:252     /29:158     /30:181     
/31:0       /32:75      

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

  ASN   No of nets  Total ann.   Description
  701     1432          2241      UUNET Technologies, Inc. 
 1221     1398          1540      Telstra Pty Ltd
 3967      873          1056      Exodus Communication 
  702      737          1082      UUNET Technologies, Inc. 
 8010      703           718      PublicNet Communications, Inc
 7046      649           817      UUNET Technologies, Inc. 
 7018      561          1088      AT&T 
  690      495           498      Merit Network 
 3908      460           682      Supernet, Inc. 
 4323      439           507      Time Warner Communications, I
 4293      432           447      Cable & Wireless USA 
    1      408           842      BBN Planet 
  209      405           577      Qwest 
 1239      403           716      Sprint 
 2764      361           404      connect.com.au pty ltd
 2149      357           481      Performance Systems, Inc. 
  852      355           542      Telus Advanced Communications
  705      336           426      UUNET Technologies, Inc. 
  703      326           397      UUNET Technologies, Inc. 
 4151      320           365      USDA 

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

   4:5         9:1        12:423      13:10       15:1        17:5      
  20:1        24:841      25:1        26:1        32:73       38:13     
  43:2        44:2        47:2        52:1        53:9        57:12     
  61:124      62:156      63:1907     64:1501     65:916      66:716    
  67:5        80:106     128:61      129:109     130:23      131:42     
 132:13      133:2       134:134     135:8       136:118     137:99     
 138:197     139:47      140:171     141:58      142:66      143:42     
 144:148     145:11      146:207     147:133     148:181     149:86     
 150:42      151:191     152:384     153:69      154:8       155:84     
 156:92      157:108     158:69      159:70      160:45      161:55     
 162:77      163:129     164:104     165:121     166:207     167:161    
 168:118     169:46      170:297     171:2       192:5376    193:2042   
 194:2056    195:862     196:451     198:3744    199:3441    200:2376   
 201:1       202:2827    203:4579    204:3358    205:2143    206:2771   
 207:2653    208:2975    209:2964    210:546     211:149     212:961    
 213:533     214:9       215:16      216:2993    217:435     218:6      


End of report

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