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[bgp-stats] Routing Table Report



*  BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report   21 May, 2001

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

BGP routing table entries examined:                            106023
Origin ASes present in the Internet Routing Table:              10871
Origin ASes announcing only one prefix:                          3966
Transit ASes present in the Internet Routing Table:              1448
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    18
Illegal AS announcements present in the Routing Table:             16
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:     1
Number of addresses announced to Internet:                 1215593732
    Equivalent to 72 /8s, 116 /16s and 125 /24s
    Percentage of available address space announced:             32.8
    Percentage of allocated address space announced:             63.2
    Percentage of available address space allocated:             51.9

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

Prefixes being announced by APNIC Region ASes:                  16034
Prefixes being announced from the APNIC address blocks:         14574
APNIC Region origin ASes present in the Internet Routing Table:  1255
APNIC Region origin ASes announcing only one prefix:              440
APNIC Region transit ASes present in the Internet Routing Table:  205
Average APNIC Region AS path length visible:                      5.1
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:             74124433
    Equivalent to 4 /8s, 107 /16s and 12 /24s
    Percentage of available APNIC address space announced:       72.9

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

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

Prefixes being announced by ARIN Region ASes:                   73405
Prefixes being announced from the ARIN address blocks:          50704
ARIN Region origin ASes present in the Internet Routing Table:   6622
ARIN Region origin ASes announcing only one prefix:              1984
ARIN Region transit ASes present in the Internet Routing Table:   692
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             183461393
    Equivalent to 10 /8s, 239 /16s and 102 /24s
    Percentage of available ARIN address space announced:        84.1

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
ARIN Address Blocks    63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                   16568
Prefixes being announced from the RIPE address blocks:          12913
RIPE Region origin ASes present in the Internet Routing Table:   2992
RIPE Region origin ASes announcing only one prefix:              1538
RIPE Region transit ASes present in the Internet Routing Table:   549
Average RIPE Region AS path length visible:                       5.8
    Max RIPE Region AS path length visible:                        18
Number of RIPE addresses announced to Internet:              98395282
    Equivalent to 5 /8s, 221 /16s and 100 /24s
    Percentage of available RIPE address space announced:        65.2

RIPE AS Blocks         1877 - 1901, 2042, 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  /19 equiv  Description
 1221     1740        665       Telstra
 2764      881        172       connect.com.au pty ltd
  703      383        206       UUNET Technologies, Inc.
 2907      361        876       SINET Japan
 4755      323        110       VSNL India
 4538      241       1047       China Education and Research 
 7539      212         97       Delegated to TWNIC for subseq
 4766      201        849       KORnet Powered BY Korea Telec
 4134      195        636       Data Communications Bureau
 7474      193         86       Optus Communications
 7657      181         13       The Internet Group Limited
 7545      156         11       TPG Internet Pty Ltd
17561      151         68       Internet service provision to
 1237      149         50       System Engineering Research I
 4740      147          9       Ozemail
 4786      128          7       NetConnect Communications Pty
 9443      125         23       INTERNETPRIMUS-AS-A
 9394      124         18       CHINA RAILWAY TELECOMMUNICATI
 4736      120         17       Magna Data
 7617      120         46       One.Net Pty Ltd

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

  ASN   No of nets  /19 equiv  Description
  702      592        825       UUNET Technologies, Inc.
15870      450          3       Global Center Frankfurt
 3301      392        401       TeliaNet Sweden
 1257      276        251       Swipnet AB
 1270      267        440       UUNET Germany
  680      216        986       Deutschef Forschurgsnetz
 3215      214        231       RAIN
  719      200        146       LANLINK
  786      185        952       JANET IP Service
 5515      175        319       Sonera Finland
 3320      162        709       Deutsche Telekom AG
 5400      132         34       Concert Internet Plus Europea
  517      129        136       Xlink
 3303      126        296       Swisscom
 8708      124          7       Romania Data System
 2856      117        388       BTnet UK Regional network
 1267      100        978       IUnet S.p.A
 1290       97        203       PSINet UK Ltd.
 1901       92         77       EUnet Austria
 8342       88         45       Rostelecom Internet Center's 

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

  ASN   No of nets  /19 equiv  Description
  701     2367       3762       UUNET Technologies, Inc.
  705     1156         54       UUNET Technologies, Inc.
 7018     1021       3306       AT&T
    1      953       4464       BBN Planet
 7046      795        564       UUNET Technologies, Inc.
 3491      676        180       CAIS Internet
 1239      641       1612       Sprint ICM-Inria
 2914      589       1169       Verio, Inc.
 3561      543       1216       Cable & Wireless USA
 4293      495         51       Cable & Wireless USA
18994      479          5       Global Crossing 
  690      470         39       Merit Network
  209      454        925       Qwest
 2548      404        498       Digital Express Group, Inc.
 3908      388        265       Supernet, Inc.
  174      367       2613       PSINet Inc.
 3602      353         73       Sprint Canada
 3549      349        526       Global Crossing
 4323      340        140       Time Warner Communications, I
 3967      337        227       Exodus Communication

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

  ASN   No of nets  /19 equiv  Description
  701     2367       3762       UUNET Technologies, Inc.
 1221     1740        665       Telstra
  705     1156         54       UUNET Technologies, Inc.
 7018     1021       3306       AT&T
    1      953       4464       BBN Planet
 2764      881        172       connect.com.au pty ltd
 7046      795        564       UUNET Technologies, Inc.
 3491      676        180       CAIS Internet
 1239      641       1612       Sprint ICM-Inria
  702      592        825       UUNET Technologies, Inc.
 2914      589       1169       Verio, Inc.
 3561      543       1216       Cable & Wireless USA
 4293      495         51       Cable & Wireless USA
18994      479          5       Global Crossing 
  690      470         39       Merit Network
  209      454        925       Qwest
15870      450          3       Global Center Frankfurt
 2548      404        498       Digital Express Group, Inc.
 3301      392        401       TeliaNet Sweden
 3908      388        265       Supernet, Inc.

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

Bad AS  Designation  Network              Transit AS  Description
60002   RESERVED      64.76.148.0/24       19583       IMPSAT CHILE S.A. 
21531   UNALLOCATED   65.163.107.0/24       1239       Sprint ICM-Inria
21531   UNALLOCATED   65.164.216.0/21       1239       Sprint ICM-Inria
 2027   UNALLOCATED   150.185.128.0/18      8143       Publicom Corp.
 1877   UNALLOCATED   192.108.196.0/24      1800       SPRINT
 1877   UNALLOCATED   192.108.209.0/24      1880       Stupi, house man's 
 1877   UNALLOCATED   192.108.210.0/24      1880       Stupi, house man's 
 1877   UNALLOCATED   192.108.214.0/24      1800       SPRINT
 5757   UNALLOCATED   192.239.13.0/24        701       UUNET Technologies, 
17441   UNALLOCATED   203.131.192.0/24      6347       SAVVIS Communication
65502   PRIVATE       203.166.83.0/24      10084       Western Australian I
65500   PRIVATE       203.166.86.0/24      10084       Western Australian I
 5555   UNALLOCATED   205.110.64.0/24        721       DLA Systems Automati
 5555   UNALLOCATED   205.110.68.0/22        721       DLA Systems Automati
 5555   UNALLOCATED   205.110.72.0/21        721       DLA Systems Automati
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 

Advertised IANA Reserved Addresses
----------------------------------

Network            Origin AS  Description
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       /10:6       /11:9       /12:31      
/13:73      /14:207     /15:347     /16:6940    /17:1163    /18:2147    
/19:6656    /20:5222    /21:4511    /22:6793    /23:8673    /24:60831   
/25:270     /26:458     /27:454     /28:463     /29:382     /30:296     
/31:1       /32:66      

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

   9:3        12:361      13:10       15:1        17:2        24:691    
  26:1        32:13       38:574      44:3        47:1        53:2      
  55:1        57:11       61:32       62:124      63:1947     64:1686   
  65:578      66:320     128:38      129:100     130:23      131:36     
 132:9       133:1       134:169     135:11      136:16      137:122    
 138:244     139:47      140:138     141:164     142:63      143:41     
 144:136     145:9       146:140     147:135     148:91      149:124    
 150:27      151:299     152:609     153:32      154:17      155:82     
 156:48      157:67      158:179     159:77      160:27      161:56     
 162:63      163:135     164:96      165:121     166:173     167:139    
 168:85      169:35      170:267     171:2       192:5447    193:1852   
 194:2027    195:725     196:400     198:3647    199:3371    200:2057   
 201:1       202:2506    203:4975    204:3353    205:2263    206:2838   
 207:2863    208:2981    209:3152    210:745     211:175     212:879    
 213:414     214:9       215:12      216:3037    217:248    

End of report
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