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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 21 Feb, 2003

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

BGP routing table entries examined:                            121899
    Prefixes after maximum aggregation:                         77243
    Unique aggregates announced to Internet:                    57876
Total ASes present in the Internet Routing Table:               14677
Origin-only ASes present in the Internet Routing Table:         12744
Origin ASes announcing only one prefix:                          5744
Transit ASes present in the Internet Routing Table:              1933
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:                                    17
Illegal AS announcements present in the Routing Table:             15
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    22
Number of addresses announced to Internet:                 1180750605
    Equivalent to 70 /8s, 96 /16s and 211 /24s
    Percentage of available address space announced:             31.9
    Percentage of allocated address space announced:             57.4
    Percentage of available address space allocated:             55.5
Total number of prefixes smaller than registry allocations:     57147

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

Prefixes being announced by APNIC Region ASes:                  20864
    Total APNIC prefixes after maximum aggregation:             11953
Prefixes being announced from the APNIC address blocks:         19439
    Unique aggregates announced from the APNIC address blocks:  11648
APNIC Region origin ASes present in the Internet Routing Table:  1733
APNIC Region origin ASes announcing only one prefix:              514
APNIC Region transit ASes present in the Internet Routing Table:  297
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:            106346656
    Equivalent to 6 /8s, 86 /16s and 184 /24s
    Percentage of available APNIC address space announced:       56.4

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:                   74699
    Total ARIN prefixes after maximum aggregation:              47581
Prefixes being announced from the ARIN address blocks:          52941
    Unique aggregates announced from the ARIN address blocks:   16499
ARIN Region origin ASes present in the Internet Routing Table:   8175
ARIN Region origin ASes announcing only one prefix:              2763
ARIN Region transit ASes present in the Internet Routing Table:   772
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             187330496
    Equivalent to 11 /8s, 42 /16s and 111 /24s
    Percentage of available ARIN address space announced:        69.8

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:                   21019
    Total RIPE prefixes after maximum aggregation:              15497
Prefixes being announced from the RIPE address blocks:          17563
    Unique aggregates announced from the RIPE address blocks:   11011
RIPE Region origin ASes present in the Internet Routing Table:   4376
RIPE Region origin ASes announcing only one prefix:              2383
RIPE Region transit ASes present in the Internet Routing Table:   781
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             126153344
    Equivalent to 7 /8s, 132 /16s and 242 /24s
    Percentage of available RIPE address space announced:        75.2

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:             2212
Prefixes being announced from the LACNIC address blocks:         4647
    Unique aggregates announced from the LACNIC address blocks:  3028
LACNIC Region origin ASes present in the Internet Routing Table:  329
LACNIC Region origin ASes announcing only one prefix:              84
LACNIC Region transit ASes present in the Internet Routing Table:  68
Average LACNIC Region AS path length visible:                     5.8
    Max LACNIC Region AS path length visible:                      10
Number of LACNIC addresses announced to Internet:            12042752
    Equivalent to 0 /8s, 183 /16s and 194 /24s
    Percentage of available LACNIC address space announced:      71.8

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       1135         815   Telstra Pty Ltd
 4663      526         82          24   ELIMNET, INC
  703      410        368         320   UUNET
 2907      394       1994         372   SINET Japan
17557      340         24         128   Pakistan Telecom
 2764      326        340         293   connect.com.au pty ltd
 7474      305        276         208   Optus Communications Pty Ltd
 4134      304       2651         100   Data Communications Bureau
 4814      261         79          15   China Telecom (Group)
 3786      241        773         207   DACOM Corporation
 4755      232        133          74   Videsh Sanchar Nigam Ltd. Aut
17676      229       3526          24   XTAGE CORPORATION
 9583      218         33          13   Satyam Infoway Ltd.,
 4766      202       2073         149   Korea Internet Exchange for "
 9443      180         57          76   Primus Telecommunications
 9800      166        205          41   CHINA UNICOM
 4765      150          9          14   World Net & Services Co., Ltd
 9238      132          8          19   TATA ISP
 4716      129        737         123   TTnet
 4739      128         57         116   Commerical Internet eXchange 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1595       8889        1153   UUNET Technologies, Inc. 
 7018     1427       7151         965   AT&T 
 3908     1207       1587         473   Supernet, Inc. 
 1239      967       3118         682   Sprint 
    1      668       8084         432   GENUITY 
  852      605       1107         445   Telus Advanced Communications
 7046      578        828         245   UUNET Technologies, Inc. 
 7843      570        402         209   Adelphia Corp. 
 4323      530        473         169   Time Warner Communications, I
  209      525       2106         334   Qwest 
 4151      524        691          57   USDA 
  690      498         73         308   Merit Network 
 7066      493        204         254   Virginia Polytechnic Institut
18566      482        113           6   Covad Communications 
 6197      478        555         114   BellSouth Network Solutions, 
 3561      466       2322         326   Cable & Wireless USA 
  376      462        375         111   Reseau Interordinateurs Scien
  705      448        165         195   UUNET Technologies, Inc. 
 2386      443        471         236   AT&T Data Communications Serv
 6198      431        193         200   BellSouth Network Solutions, 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      790       2247         652   UUNET - Commercial IP service
 3301      315       1143         303   TeliaNet Sweden
 3215      312        818         171   France Telecom Transpac
 3320      263       1996         227   Deutsche Telekom AG
  680      232       2054         229   DFN-IP service G-WiN
 1257      218        369         199   SWIPnet Swedish IP Network
  719      201        306         128   LANLINK autonomous system
 5515      187        779         161   Sonera Solution Autonomous Sy
  786      179       1874         179   The JANET IP Service
 5400      160         69          95   BT Ignite European Backbone
 8708      149         42         147   Romania Data Systems S.A.
20858      147         17           3   This AS will be used to conne
 3303      144        517         143   Swisscom Ltd
12302      124         18          31   MobiFon S.A.
 8220      122        174         113   COLT Internet - International
 2856      120       1299         110   BTnet UK Regional network
 3269      111        751          61   TELECOM ITALIA
 3233      108         11          12   RNC - Romanian Natioanal R&D 
 3246      105        358         102   Song Networks
 3352      100        652          29   Ibernet, Internet Access Netw

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      283         98         104   ImpSat
 7303      240         36          49   Telecom Argentina Stet-France
 8151      210        332         115   UniNet S.A. de C.V. 
11172      161         82          33   Servicios Alestra S.A de C.V 
 6503      157        191         110   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       74         62          21   Telefonica Del Peru 
 8065       74          6          19   Empresas Publicas de Medellin
 1916       73        306          44   Fundacao de Amparo a Pesquisa
 6535       72          5          23   Chilesat Servicios  Empresari
15311       71         27          36   Telefonica Empresas 
 4270       69         18          10   Red de Interconexion Universi
11992       69          7          30   Integrated Systems 
 7927       65          5          40   Global One Venezuela 
 7080       64          4           1   Electronica y Comunicaciones 
 7984       61         11          40   Global One Colombia 
11830       60          4          21   Instituto Costarricense de El

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

  ASN   No of nets  Net Savings Description
 3908      1207         734      Supernet, Inc. 
 4663       526         502      ELIMNET, INC
18566       482         476      Covad Communications 
 4151       524         467      USDA 
 7018      1427         462      AT&T 
 6197       478         364      BellSouth Network Solutions, 
 7843       570         361      Adelphia Corp. 
 4323       530         361      Time Warner Communications, I
  376       462         351      Reseau Interordinateurs Scien
 7046       578         333      UUNET Technologies, Inc. 
11492       308         307      Cable One 
 1221      1113         298      Telstra Pty Ltd
 6347       370         291      SAVVIS Communications Corpora
 4355       402         290      EarthLink, Inc. 
 1239       967         285      Sprint 
22927       295         281      TELEFONICA DE ARGENTINA 
  705       448         253      UUNET Technologies, Inc. 
 4814       261         246      China Telecom (Group)
 7066       493         239      Virginia Polytechnic Institut
    1       668         236      GENUITY 

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

Bad AS  Designation  Network              Transit AS  Description
64512   PRIVATE       66.205.199.0/24      25752       Neopolitan Networks 
64520   PRIVATE       158.15.0.0/16          721       DLA Systems Automati
 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
65520   PRIVATE       202.36.16.0/21        9889       Web InterNet, ISP
65520   PRIVATE       202.36.24.0/22        9889       Web InterNet, ISP

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 
192.31.242.0/24        771     NASA Ames Research Center 
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
192.139.62.0/24       6539     GT Group Telecom Services Cor
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        /8:17       /9:3       /10:8       /11:12      /12:44      
/13:93      /14:238     /15:445     /16:7340    /17:1585    /18:2885    
/19:8142    /20:8032    /21:5770    /22:8749    /23:10481   /24:66824   
/25:286     /26:415     /27:101     /28:97      /29:61      /30:174     
/31:2       /32:95      

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

  ASN   No of nets  Total ann.   Description
 3908      779          1207      Supernet, Inc. 
 7018      525          1427      AT&T 
  702      494           790      UUNET - Commercial IP service
 4663      482           526      ELIMNET, INC
18566      477           482      Covad Communications 
  701      453          1595      UUNET Technologies, Inc. 
  690      447           498      Merit Network 
 7066      392           493      Virginia Polytechnic Institut
 1239      361           967      Sprint 
 6197      353           478      BellSouth Network Solutions, 
 7843      340           570      Adelphia Corp. 
 6198      339           431      BellSouth Network Solutions, 
11492      307           308      Cable One 
22927      294           295      TELEFONICA DE ARGENTINA 
 7046      280           578      UUNET Technologies, Inc. 
 6140      271           283      ImpSat
20115      271           396      Charter Communications 
 2386      240           443      AT&T Data Communications Serv
 7303      239           240      Telecom Argentina Stet-France
 3215      238           312      France Telecom Transpac

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

  12:644      13:1        15:4        17:2        20:9        24:834    
  25:1        32:83       34:1        38:42       40:18       44:2      
  55:1        57:15       61:452      62:505      63:1903     64:1384   
  65:1864     66:1419     67:213      68:288      69:51       80:324    
  81:88      128:146     129:187     130:40      131:81      132:13     
 133:2       134:144     135:4       136:193     137:117     138:104    
 139:72      140:102     141:110     142:94      143:46      144:107    
 145:18      146:262     147:85      148:267     149:74      150:44     
 151:95      152:252     153:51      154:3       155:106     156:41     
 157:39      158:123     159:141     160:34      161:55      162:135    
 163:83      164:269     165:138     166:81      167:305     168:393    
 169:54      170:304     171:8       192:5289    193:2427    194:2006   
 195:958     196:458     198:3593    199:3199    200:2879    202:3636   
 203:5094    204:3019    205:2030    206:2396    207:2390    208:2697   
 209:2791    210:781     211:373     212:952     213:723     214:21     
 215:21      216:3184    217:595     218:78      219:14      220:50     


End of report

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