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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 28 Feb, 2003

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

BGP routing table entries examined:                            121927
    Prefixes after maximum aggregation:                         77477
    Unique aggregates announced to Internet:                    58082
Total ASes present in the Internet Routing Table:               14730
Origin-only ASes present in the Internet Routing Table:         12801
Origin ASes announcing only one prefix:                          5774
Transit ASes present in the Internet Routing Table:              1929
Transit-only ASes present in the Internet Routing Table:           66
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:             11
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    20
Number of addresses announced to Internet:                 1200020621
    Equivalent to 71 /8s, 134 /16s and 220 /24s
    Percentage of available address space announced:             32.4
    Percentage of allocated address space announced:             58.3
    Percentage of available address space allocated:             55.5
Total number of prefixes smaller than registry allocations:     57021

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

Prefixes being announced by APNIC Region ASes:                  20463
    Total APNIC prefixes after maximum aggregation:             12056
Prefixes being announced from the APNIC address blocks:         18982
    Unique aggregates announced from the APNIC address blocks:  11657
APNIC Region origin ASes present in the Internet Routing Table:  1743
APNIC Region origin ASes announcing only one prefix:              522
APNIC Region transit ASes present in the Internet Routing Table:  287
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:            106683880
    Equivalent to 6 /8s, 91 /16s and 221 /24s
    Percentage of available APNIC address space announced:       56.6

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 220/6

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

Prefixes being announced by ARIN Region ASes:                   75025
    Total ARIN prefixes after maximum aggregation:              47680
Prefixes being announced from the ARIN address blocks:          53234
    Unique aggregates announced from the ARIN address blocks:   16611
ARIN Region origin ASes present in the Internet Routing Table:   8196
ARIN Region origin ASes announcing only one prefix:              2768
ARIN Region transit ASes present in the Internet Routing Table:   782
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             187856256
    Equivalent to 11 /8s, 50 /16s and 117 /24s
    Percentage of available ARIN address space announced:        70.0

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:                   21126
    Total RIPE prefixes after maximum aggregation:              15545
Prefixes being announced from the RIPE address blocks:          17658
    Unique aggregates announced from the RIPE address blocks:   11063
RIPE Region origin ASes present in the Internet Routing Table:   4397
RIPE Region origin ASes announcing only one prefix:              2397
RIPE Region transit ASes present in the Internet Routing Table:   785
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             127445504
    Equivalent to 7 /8s, 152 /16s and 170 /24s
    Percentage of available RIPE address space announced:        76.0

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, 28672 - 29695
RIPE Address Blocks    62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                  5303
    Total LACNIC prefixes after maximum aggregation:             2196
Prefixes being announced from the LACNIC address blocks:         4671
    Unique aggregates announced from the LACNIC address blocks:  3035
LACNIC Region origin ASes present in the Internet Routing Table:  330
LACNIC Region origin ASes announcing only one prefix:              87
LACNIC Region transit ASes present in the Internet Routing Table:  66
Average LACNIC Region AS path length visible:                     5.8
    Max LACNIC Region AS path length visible:                      10
Number of LACNIC addresses announced to Internet:            12088064
    Equivalent to 0 /8s, 184 /16s and 115 /24s
    Percentage of available LACNIC address space announced:      72.1

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     1113       1119         808   Telstra Pty Ltd
  703      410        368         316   UUNET
 2907      388       1960         367   SINET Japan
17557      346         25         138   Pakistan Telecom
 2764      325        341         293   connect.com.au pty ltd
 7474      306        276         208   Optus Communications Pty Ltd
 4134      304       2637          96   Data Communications Bureau
 4814      264         79          15   China Telecom (Group)
 3786      241        773         207   DACOM Corporation
 4755      235        134          75   Videsh Sanchar Nigam Ltd. Aut
17676      232       3574          24   XTAGE CORPORATION
 9583      223         33          13   Satyam Infoway Ltd.,
 4766      208       2074         155   Korea Internet Exchange for "
 9443      178         57          76   Primus Telecommunications
 9800      166        205          41   CHINA UNICOM
 4765      152         10          14   World Net & Services Co., Ltd
 9238      136          8          17   TATA ISP
 4716      128        735         122   TTnet
 4739      128         57         116   Commerical Internet eXchange 
 9768      128        384          64   Korea Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1613       8888        1149   UUNET Technologies, Inc. 
 7018     1387       7151         958   AT&T 
 3908     1244       1590         485   Supernet, Inc. 
 1239      979       3138         692   Sprint 
    1      669       8087         435   GENUITY 
  852      600       1107         444   Telus Advanced Communications
 7046      559        826         243   UUNET Technologies, Inc. 
 7843      554        405         197   Adelphia Corp. 
 4323      534        473         168   Time Warner Communications, I
 4151      531        691          58   USDA 
  209      529       2092         335   Qwest 
  690      498         73         308   Merit Network 
 3561      498       2327         339   Cable & Wireless USA 
18566      491        114           7   Covad Communications 
 7066      490        204         254   Virginia Polytechnic Institut
 6197      483        554         110   BellSouth Network Solutions, 
 2386      478        477         249   AT&T Data Communications Serv
  376      460        375         111   Reseau Interordinateurs Scien
  705      450        165         196   UUNET Technologies, Inc. 
 6198      437        195         201   BellSouth Network Solutions, 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      790       2250         653   UUNET - Commercial IP service
 3215      315        818         173   France Telecom Transpac
 3301      315       1142         303   TeliaNet Sweden
 3320      263       1996         227   Deutsche Telekom AG
  680      232       2054         229   DFN-IP service G-WiN
 1257      219        370         196   SWIPnet Swedish IP Network
  719      202        307         129   LANLINK autonomous system
 5400      197         70          97   BT Ignite European Backbone
 5515      186        779         160   Sonera Solution Autonomous Sy
  786      179       1874         179   The JANET IP Service
 8708      152         42         149   Romania Data Systems S.A.
20858      148         17           3   This AS will be used to conne
 3303      144        517         143   Swisscom Ltd
 8220      125        182         116   COLT Internet - International
12302      123         18          30   MobiFon S.A.
 2856      118       1299         108   BTnet UK Regional network
 3269      111        751          61   TELECOM ITALIA
 3233      108         11          12   RNC - Romanian Natioanal R&D 
 3246      104        360         101   Song Networks
 3352       99        652          29   Ibernet, Internet Access Netw

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      285         98         104   ImpSat
 7303      240         36          49   Telecom Argentina Stet-France
 8151      213        325         115   UniNet S.A. de C.V. 
11172      160         66          32   Servicios Alestra S.A de C.V 
 6503      157        207         109   AVANTEL, S.A. 
16814      139          9          18   NSS, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
11340      110          3          38   Red Universitaria Nacional 
10620      107          7          31   TVCABLE BOGOTA 
 6147       75         62          21   Telefonica Del Peru 
 1916       73        306          44   Fundacao de Amparo a Pesquisa
 6535       72          5          23   Chilesat Servicios  Empresari
 8065       72          6          18   Empresas Publicas de Medellin
15311       71         27          36   Telefonica Empresas 
11992       69          7          30   Integrated Systems 
 4270       67         18          10   Red de Interconexion Universi
 7984       66         11          42   Global One Colombia 
 7080       64          4           1   Electronica y Comunicaciones 
 7927       64          5          39   Global One Venezuela 
11830       62          5          20   Instituto Costarricense de El

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

  ASN   No of nets  Net Savings Description
 3908      1244         759      Supernet, Inc. 
18566       491         484      Covad Communications 
 4151       531         473      USDA 
 7018      1387         429      AT&T 
 6197       483         373      BellSouth Network Solutions, 
 4323       534         366      Time Warner Communications, I
 7843       554         357      Adelphia Corp. 
  376       460         349      Reseau Interordinateurs Scien
 7046       559         316      UUNET Technologies, Inc. 
11492       309         308      Cable One 
 1221      1113         305      Telstra Pty Ltd
 6347       370         292      SAVVIS Communications Corpora
 4355       402         290      EarthLink, Inc. 
 1239       979         287      Sprint 
22927       295         281      TELEFONICA DE ARGENTINA 
  705       450         254      UUNET Technologies, Inc. 
 4814       264         249      China Telecom (Group)
 7066       490         236      Virginia Polytechnic Institut
 6198       437         236      BellSouth Network Solutions, 
    1       669         234      GENUITY 

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
64521   PRIVATE       198.189.23.0/24       2151       California State Uni
64521   PRIVATE       198.189.24.0/24       2151       California State Uni
64524   PRIVATE       198.189.134.0/24      2151       California State Uni
64524   PRIVATE       198.189.135.0/24      2151       California State Uni
64524   PRIVATE       198.189.136.0/24      2151       California State Uni
64524   PRIVATE       198.189.137.0/24      2151       California State Uni
64524   PRIVATE       198.189.138.0/24      2151       California State Uni
64521   PRIVATE       198.189.158.0/24      2151       California State Uni
64521   PRIVATE       198.189.235.0/24      2151       California State Uni
64521   PRIVATE       198.189.236.0/24      2151       California State Uni

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
192.44.0.0/19          702     UUNET - Commercial IP service
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
192.119.135.0/24       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
192.153.136.0/21       568     DISO-UNRRA 
192.156.164.0/24     19548     Adelphia Business Solutions 
192.172.0.0/19         568     DISO-UNRRA 
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        /8:18       /9:3       /10:8       /11:12      /12:46      
/13:93      /14:238     /15:445     /16:7353    /17:1598    /18:2900    
/19:8169    /20:8092    /21:5812    /22:8818    /23:10536   /24:66934   
/25:170     /26:185     /27:113     /28:88      /29:63      /30:133     
/31:4       /32:96      

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

  ASN   No of nets  Total ann.   Description
 3908      815          1244      Supernet, Inc. 
  702      493           790      UUNET - Commercial IP service
 7018      491          1387      AT&T 
18566      486           491      Covad Communications 
  701      476          1613      UUNET Technologies, Inc. 
  690      447           498      Merit Network 
 7066      389           490      Virginia Polytechnic Institut
 1239      365           979      Sprint 
 6197      356           483      BellSouth Network Solutions, 
 6198      347           437      BellSouth Network Solutions, 
 7843      320           554      Adelphia Corp. 
11492      308           309      Cable One 
22927      294           295      TELEFONICA DE ARGENTINA 
 2386      274           478      AT&T Data Communications Serv
 6140      272           285      ImpSat
 7046      263           559      UUNET Technologies, Inc. 
20115      257           383      Charter Communications 
 3215      240           315      France Telecom Transpac
 7303      239           240      Telecom Argentina Stet-France
 4355      229           402      EarthLink, Inc. 

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

  12:653      13:1        15:4        17:2        20:9        24:837    
  25:1        32:83       34:1        38:57       40:18       44:2      
  55:1        57:16       61:453      62:508      63:1904     64:1391   
  65:1904     66:1463     67:214      68:280      69:52       80:319    
  81:99      128:144     129:189     130:40      131:81      132:13     
 133:2       134:145     135:4       136:121     137:117     138:106    
 139:74      140:132     141:123     142:94      143:46      144:111    
 145:18      146:264     147:85      148:267     149:73      150:44     
 151:110     152:252     153:51      154:3       155:107     156:42     
 157:41      158:124     159:142     160:34      161:58      162:135    
 163:84      164:269     165:140     166:80      167:317     168:387    
 169:54      170:306     171:8       192:5288    193:2422    194:1998   
 195:946     196:469     198:3598    199:3209    200:2895    202:3600   
 203:5097    204:3049    205:2027    206:2407    207:2386    208:2691   
 209:2761    210:737     211:336     212:958     213:745     214:21     
 215:21      216:3220    217:598     218:80      219:14      220:52     


End of report

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