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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   20:00 +10GMT Fri 22 Nov, 2002

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

BGP routing table entries examined:                            119138
    Prefixes after maximum aggregation:                         75374
    Unique aggregates announced to Internet:                    56423
Total ASes present in the Internet Routing Table:               14124
Origin-only ASes present in the Internet Routing Table:         12228
Origin ASes announcing only one prefix:                          5533
Transit ASes present in the Internet Routing Table:              1896
Transit-only ASes present in the Internet Routing Table:           68
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    23
Illegal AS announcements present in the Routing Table:              2
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    36
Number of addresses announced to Internet:                 1184257757
    Equivalent to 70 /8s, 150 /16s and 86 /24s
    Percentage of available address space announced:             32.0
    Percentage of allocated address space announced:             58.6
    Percentage of available address space allocated:             54.6
Total number of prefixes smaller than registry allocations:     50279

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

Prefixes being announced by APNIC Region ASes:                  19278
    Total APNIC prefixes after maximum aggregation:             11465
Prefixes being announced from the APNIC address blocks:         17812
    Unique aggregates announced from the APNIC address blocks:  11208
APNIC Region origin ASes present in the Internet Routing Table:  1649
APNIC Region origin ASes announcing only one prefix:              526
APNIC Region transit ASes present in the Internet Routing Table:  289
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       13
Number of APNIC addresses announced to Internet:            100592288
    Equivalent to 5 /8s, 254 /16s and 234 /24s
    Percentage of available APNIC address space announced:       66.2

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 220/7

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

Prefixes being announced by ARIN Region ASes:                   74894
    Total ARIN prefixes after maximum aggregation:              46769
Prefixes being announced from the ARIN address blocks:          52411
    Unique aggregates announced from the ARIN address blocks:   15646
ARIN Region origin ASes present in the Internet Routing Table:   7928
ARIN Region origin ASes announcing only one prefix:              2666
ARIN Region transit ASes present in the Internet Routing Table:   756
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        23
Number of ARIN addresses announced to Internet:             183617504
    Equivalent to 10 /8s, 241 /16s and 199 /24s
    Percentage of available ARIN address space announced:        68.4

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
                       25600 - 26591, 26624 - 27647
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                   20089
    Total RIPE prefixes after maximum aggregation:              15043
Prefixes being announced from the RIPE address blocks:          16743
    Unique aggregates announced from the RIPE address blocks:   11119
RIPE Region origin ASes present in the Internet Routing Table:   4160
RIPE Region origin ASes announcing only one prefix:              2260
RIPE Region transit ASes present in the Internet Routing Table:   772
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        14
Number of RIPE addresses announced to Internet:             119938624
    Equivalent to 7 /8s, 38 /16s and 30 /24s
    Percentage of available RIPE address space announced:        79.4

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

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                  4877
    Total LACNIC prefixes after maximum aggregation:             2097
Prefixes being announced from the LACNIC address blocks:         4245
    Unique aggregates announced from the LACNIC address blocks:  2746
LACNIC Region origin ASes present in the Internet Routing Table:  319
LACNIC Region origin ASes announcing only one prefix:              81
LACNIC Region transit ASes present in the Internet Routing Table:  67
Average LACNIC Region AS path length visible:                     5.9
    Max LACNIC Region AS path length visible:                      16
Number of LACNIC addresses announced to Internet:            11728384
    Equivalent to 0 /8s, 178 /16s and 246 /24s
    Percentage of available LACNIC address space announced:      69.9

LACNIC AS Blocks       26592 - 26623, 27648 - 28671
LACNIC Address Blocks  200/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1177       1184         852   Telstra Pty Ltd
  703      392        363         309   UUNET
 2907      351       1767         330   SINET Japan
 2764      339        341         307   connect.com.au pty ltd
17557      307         22         122   Pakistan Telecom
 7474      303        279         202   Optus Communications Pty Ltd
 4134      298       2351         100   Data Communications Bureau
 4755      275        137          72   Videsh Sanchar Nigam Ltd. Aut
 4814      247         79          15   China Telecom (Group)
 4766      236       1807         152   Korea Internet Exchange for "
17676      229       3554          29   XTAGE CORPORATION
 9443      183         57          72   Primus Telecommunications
 9583      173         33          11   Satyam Infoway Ltd.,
 4515      144        102          76   Star Internet Services Ltd.
 9768      134        385          73   Korea Telecom
 4716      130        724         124   TTnet
 9800      126        189          28   CHINA UNICOM
 7657      125         24          90   The Internet Group Limited
 4739      120         56         110   Commerical Internet eXchange 
 4621      118         11          67   UNINET-TH

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3908     2110       1668         510   Supernet, Inc. 
  701     1744       9039        1248   UUNET Technologies, Inc. 
 7018     1366       7174         949   AT&T 
 1239      911       3170         658   Sprint 
 7843      666        389         278   Adelphia Corp. 
  852      665       1147         466   Telus Advanced Communications
    1      658       8090         438   GENUITY 
  209      592       2048         337   Qwest 
 7046      586        861         284   UUNET Technologies, Inc. 
19029      570        127          28   New Edge Networks 
 4323      525        455         167   Time Warner Communications, I
  690      507         74         319   Merit Network 
 7066      489        204         257   Virginia Polytechnic Institut
 6197      440        235         201   BellSouth Network Solutions, 
  705      437        134         197   UUNET Technologies, Inc. 
 3561      422       2283         360   Cable & Wireless USA 
 6198      410        176         197   BellSouth Network Solutions, 
 3549      406        743         292   Global Crossing 
 4355      403        313         118   EarthLink, Inc. 
 2548      390       1036         240   Business Internet, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      822       2330         688   UUNET - Commercial IP service
 3301      382       1164         337   TeliaNet Sweden
 3215      312        789         172   France Telecom Transpac
 3320      245       1964         221   Deutsche Telekom AG
  680      237       2150         234   DFN-IP service G-WiN
 1257      213        416         203   SWIPnet Swedish IP Network
 5515      210        783         175   Sonera Solution Autonomous Sy
  719      190        306         129   LANLINK autonomous system
 5400      182         79         103   BT Ignite European Backbone
  786      176       1873         176   The JANET IP Service
 2856      176       1304         134   BTnet UK Regional network
 8708      154         41         147   Romania Data Systems S.A.
 3303      144        517         143   Swisscom Ltd
20858      138         17           4   This AS will be used to conne
12302      123         18          30   MobiFon S.A.
 3246      119        375         116   Song Networks
 8220      118        173         110   COLT Internet - International
 3269      111        752          63   TELECOM ITALIA
 3233      106         10           8   RNC - Romanian Natioanal R&D 
 2874      102         85          39   Global One Services AB

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      267        114          57   ImpSat USA, Inc. 
 8151      212        347         113   UniNet S.A. de C.V. 
 7303      184         28          47   Telecom Argentina Stet-France
11172      167         88          34   Servicios Alestra S.A de C.V 
 6503      155        175         110   AVANTEL, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
16814      106          7          12   NSS, S.A. 
10620       97          6          33   TVCABLE BOGOTA 
11340       79          2          30   Red Universitaria Nacional 
15311       74         27          37   Telefonica Empresas 
 1916       73        409          40   Fundacao de Amparo a Pesquisa
 4270       71         18          10   Red de Interconexion Universi
 6535       71          4          15   Chilesat Servicios  Empresari
11992       67          7          29   Integrated Systems 
 6147       66         57          23   Telefonica Del Peru 
 4926       63          4          51   Telintar S.A. 
 7984       63         11          40   Global One Colombia 
 8065       60          6          15   Empresas Publicas de Medellin
15034       60          5          33   TIBA SA 
 7927       56          5          39   Global One Venezuela 

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

  ASN   No of nets  Net Savings Description
19029       570         542      New Edge Networks 
  701      1744         496      UUNET Technologies, Inc. 
 7018      1366         417      AT&T 
 7843       666         388      Adelphia Corp. 
18566       367         362      Covad Communications 
 4323       525         358      Time Warner Communications, I
 1221      1177         325      Telstra Pty Ltd
 1580       316         303      ANOSCEUR 
 7046       586         302      UUNET Technologies, Inc. 
 4151       347         288      USDA 
 6347       361         287      SAVVIS Communications Corpora
 4355       403         285      EarthLink, Inc. 
11492       266         257      Cable One 
  209       592         255      Qwest 
22927       275         255      TELEFONICA DE ARGENTINA 
 1239       911         253      Sprint 
  705       437         240      UUNET Technologies, Inc. 
 6197       440         239      BellSouth Network Solutions, 
  376       342         238      Reseau Interordinateurs Scien
 7066       489         232      Virginia Polytechnic Institut

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 

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     GENUITY 
156.108.0.0/16       14041     Colorado State University / A
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
164.236.0.0/16         568     DISO-UNRRA 
192.31.242.0/24        771     NASA Ames Research Center 
192.44.0.0/19          702     UUNET - Commercial IP service
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.83.16.0/20        5515     Sonera Solution Autonomous Sy
192.83.32.0/19        5515     Sonera Solution Autonomous Sy
192.83.96.0/22        5515     Sonera Solution Autonomous Sy
192.83.100.0/24       5515     Sonera Solution Autonomous Sy
192.91.198.0/24       2568     CTS Network Services 
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
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
192.136.136.0/24      7046     UUNET Technologies, Inc. 
192.136.136.0/22       568     DISO-UNRRA 
192.139.62.0/24       6539     GT Group Telecom Services Cor
192.140.0.0/16        5511     France Telecom
192.153.136.0/21       568     DISO-UNRRA 
192.156.0.0/19         568     DISO-UNRRA 
192.156.164.0/24     19548     Adelphia Business Solutions 
192.172.0.0/19         568     DISO-UNRRA 
192.208.29.0/24       3908     Supernet, Inc. 
192.208.30.0/23       3908     Supernet, Inc. 
192.243.36.0/23       2044     AUSNet, Inc. 

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:17       /9:3       /10:8       /11:11      /12:46      
/13:91      /14:236     /15:439     /16:7309    /17:1543    /18:2752    
/19:7963    /20:7618    /21:5423    /22:8323    /23:10091   /24:66320   
/25:161     /26:186     /27:108     /28:103     /29:72      /30:232     
/31:19      /32:64      

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

  ASN   No of nets  Total ann.   Description
 3908      884          2110      Supernet, Inc. 
19029      536           570      New Edge Networks 
  702      503           822      UUNET - Commercial IP service
  701      502          1744      UUNET Technologies, Inc. 
 7843      464           666      Adelphia Corp. 
  690      455           507      Merit Network 
 7018      440          1366      AT&T 
 7066      387           489      Virginia Polytechnic Institut
18566      360           367      Covad Communications 
 6197      331           440      BellSouth Network Solutions, 
 6198      326           410      BellSouth Network Solutions, 
 1239      305           911      Sprint 
 1580      302           316      ANOSCEUR 
  209      277           592      Qwest 
 7046      276           586      UUNET Technologies, Inc. 
11492      264           266      Cable One 
 3215      237           312      France Telecom Transpac
 3301      227           382      TeliaNet Sweden
22927      225           275      TELEFONICA DE ARGENTINA 
 4355      223           403      EarthLink, Inc. 

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

   4:3         8:1        12:600      13:10       15:4        17:3      
  20:5        24:849      25:1        32:46       38:28       40:13     
  44:1        55:1        57:15       61:392      62:384      63:1929   
  64:1375     65:1709     66:1226     67:183      68:172      69:22     
  80:313      81:83      128:119     129:141     130:19      131:67     
 132:9       133:2       134:150     135:7       136:484     137:109    
 138:216     139:76      140:154     141:92      142:88      143:46     
 144:149     145:18      146:250     147:248     148:258     149:77     
 150:43      151:85      152:289     153:36      154:8       155:100    
 156:108     157:51      158:110     159:152     160:22      161:72     
 162:137     163:88      164:256     165:137     166:93      167:296    
 168:372     169:56      170:263     171:6       192:5421    193:2384   
 194:2010    195:843     196:457     198:3700    199:3097    200:2596   
 202:3562    203:4836    204:3492    205:2342    206:2362    207:2510   
 208:2590    209:2883    210:617     211:293     212:871     213:794    
 214:12      215:20      216:3121    217:508     218:65      219:7      


End of report

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