[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri May 30 06:05:47 EDT 2003


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

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

Routing Table Report   20:00 +10GMT Fri 30 May, 2003

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

BGP routing table entries examined:                            125561
    Prefixes after maximum aggregation:                         78781
    Unique aggregates announced to Internet:                    59190
Total ASes present in the Internet Routing Table:               15261
Origin-only ASes present in the Internet Routing Table:         13231
Origin ASes announcing only one prefix:                          5988
Transit ASes present in the Internet Routing Table:              2030
Transit-only ASes present in the Internet Routing Table:           71
Average AS path length visible in the Internet Routing Table:     4.8
    Max AS path length visible:                                   255
Illegal AS announcements present in the Routing Table:              5
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           18
Number of addresses announced to Internet:                 1231382592
    Equivalent to 73 /8s, 101 /16s and 104 /24s
    Percentage of available address space announced:             33.2
    Percentage of allocated address space announced:             59.4
    Percentage of available address space allocated:             55.9
Total number of prefixes smaller than registry allocations:     55295

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

Prefixes being announced by APNIC Region ASes:                  21661
    Total APNIC prefixes after maximum aggregation:             12532
Prefixes being announced from the APNIC address blocks:         20057
    Unique aggregates announced from the APNIC address blocks:  12046
APNIC Region origin ASes present in the Internet Routing Table:  1810
APNIC Region origin ASes announcing only one prefix:              522
APNIC Region transit ASes present in the Internet Routing Table:  300
Average APNIC Region AS path length visible:                      4.9
    Max APNIC Region AS path length visible:                       17
Number of APNIC addresses announced to Internet:            113762976
    Equivalent to 6 /8s, 199 /16s and 226 /24s
    Percentage of available APNIC address space announced:       61.3

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                   76924
    Total ARIN prefixes after maximum aggregation:              48066
Prefixes being announced from the ARIN address blocks:          55077
    Unique aggregates announced from the ARIN address blocks:   16513
ARIN Region origin ASes present in the Internet Routing Table:   8438
ARIN Region origin ASes announcing only one prefix:              2882
ARIN Region transit ASes present in the Internet Routing Table:   815
Average ARIN Region AS path length visible:                       4.6
    Max ARIN Region AS path length visible:                        21
Number of ARIN addresses announced to Internet:             191855872
    Equivalent to 11 /8s, 111 /16s and 125 /24s
    Percentage of available ARIN address space announced:        71.5

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, 29695 - 30719
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:                   21602
    Total RIPE prefixes after maximum aggregation:              15924
Prefixes being announced from the RIPE address blocks:          18089
    Unique aggregates announced from the RIPE address blocks:   12118
RIPE Region origin ASes present in the Internet Routing Table:   4611
RIPE Region origin ASes announcing only one prefix:              2498
RIPE Region transit ASes present in the Internet Routing Table:   817
Average RIPE Region AS path length visible:                       5.4
    Max RIPE Region AS path length visible:                        20
Number of RIPE addresses announced to Internet:             131505152
    Equivalent to 7 /8s, 214 /16s and 156 /24s
    Percentage of available RIPE address space announced:        71.3

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:                  5369
    Total LACNIC prefixes after maximum aggregation:             2259
Prefixes being announced from the LACNIC address blocks:         4778
    Unique aggregates announced from the LACNIC address blocks:  2984
LACNIC Region origin ASes present in the Internet Routing Table:  332
LACNIC Region origin ASes announcing only one prefix:              86
LACNIC Region transit ASes present in the Internet Routing Table:  68
Average LACNIC Region AS path length visible:                     5.3
    Max LACNIC Region AS path length visible:                      24
Number of LACNIC addresses announced to Internet:            12609280
    Equivalent to 0 /8s, 192 /16s and 103 /24s
    Percentage of available LACNIC address space announced:      37.6

LACNIC AS Blocks       26592 - 26623, 27648 - 28671
LACNIC Address Blocks  200/7

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1075       1103         768   Telstra Pty Ltd
 4755      422        134          75   Videsh Sanchar Nigam Ltd. Aut
 2907      376       1911         352   SINET Japan
17557      371         26         151   Pakistan Telecom
  703      344        372         274   UUNET
 2764      307        340         275   connect.com.au pty ltd
 4814      295         86          19   China Telecom (Group)
 7474      269        290         202   Optus Communications Pty Ltd
17676      250       3862          19   XTAGE CORPORATION
 3786      243        773         210   DACOM Corporation
 4134      235       2042         117   Data Communications Bureau
 9583      227         34          17   Satyam Infoway Ltd.,
 4766      212       2475         159   Korea Internet Exchange for "
 9443      182         58          82   Primus Telecommunications
 9800      181        260          59   CHINA UNICOM
 9498      141         10          17   BHARTI BT INTERNET LTD.
 4739      138         57         126   Commerical Internet eXchange 
 9238      132          8          23   TATA ISP
 7539      129        156         103   TANet2, sponsored by NSC, TAI
 4716      128        745         122   TTnet

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1565       8934        1102   UUNET Technologies, Inc. 
 7018     1335       7209         922   AT&T 
 7132      988       6475         207   Southwestern Bell Internet Se
 1239      948       3018         667   Sprint 
 3908      916       1556         477   Supernet, Inc. 
  189      705        341         292   Genuity 
11305      657        171          82   Interland Incorporated 
 7843      656        353         181   Adelphia Corp. 
    1      638       2589         434   GENUITY 
 4323      597        526         175   Time Warner Communications, I
18566      581        160           8   Covad Communications 
 2386      547        517         298   AT&T Data Communications Serv
  852      534       1123         422   Telus Advanced Communications
  705      510        272         333   UUNET Technologies, Inc. 
  209      494       2106         300   Qwest 
 6197      489        343         194   BellSouth Network Solutions, 
 7066      482        204         259   Virginia Polytechnic Institut
20115      464        194         286   Charter Communications 
 6198      460        230         177   BellSouth Network Solutions, 
  690      455         66         297   Merit Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      750       2157         637   UUNET - Commercial IP service
 3320      346       2004         228   Deutsche Telekom AG
 3301      306       1173         293   TeliaNet Sweden
 3215      302        852         173   France Telecom Transpac
  680      232       2053         229   DFN-IP service G-WiN
 1257      225        311         187   SWIPnet Swedish IP Network
 8220      223        384         211   COLT Internet - International
  719      215        307         124   LANLINK autonomous system
 5400      204        121         115   BT Ignite European Backbone
 5515      181        795         152   Sonera Solution Autonomous Sy
  786      179       1874         179   The JANET IP Service
 8708      154         44         149   Romania Data Systems S.A.
 3303      142        549         139   Swisscom Ltd
12302      128         18          35   MobiFon S.A.
 2856      123       1299         113   BTnet UK Regional network
 3269      116        819          63   TELECOM ITALIA
 3246      113        365         111   Song Networks
 3352      109        780          32   Ibernet, Internet Access Netw
 2647       99       4129          39   SITA
 5511       95        177          76   France Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      295         98         110   ImpSat
 7303      234         37          58   Telecom Argentina Stet-France
 8151      215        350         118   UniNet S.A. de C.V. 
11172      169         66          41   Servicios Alestra S.A de C.V 
 6503      136        190          99   AVANTEL, S.A. 
16814      135          9          17   NSS, S.A. 
10620      113          7          33   TVCABLE BOGOTA 
11340      105          3          33   Red Universitaria Nacional 
 6147       95         70          21   Telefonica Del Peru 
11992       89          8          37   Integrated Systems 
 8065       80          8          15   Empresas Publicas de Medellin
 6535       74          5          23   Chilesat Servicios  Empresari
 1916       73        306          43   Fundacao de Amparo a Pesquisa
15311       71         12          35   Telefonica Empresas 
 4270       68         18           9   Red de Interconexion Universi
13999       68         36           8   Mega Cable S.A. de C.V. 
11830       66          4          27   Instituto Costarricense de El
 7080       64          4           1   Electronica y Comunicaciones 
 7927       64          5          39   Global One Venezuela 
11311       64          6          13   Sinectis S.A. 

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

  ASN   No of nets  Net Savings Description
 7132       988         781      Southwestern Bell Internet Se
11305       657         575      Interland Incorporated 
18566       581         573      Covad Communications 
 7843       656         475      Adelphia Corp. 
 3908       916         439      Supernet, Inc. 
 4323       597         422      Time Warner Communications, I
 7018      1335         413      AT&T 
  189       705         413      Genuity 
 4755       422         347      Videsh Sanchar Nigam Ltd. Aut
 1221      1075         307      Telstra Pty Ltd
 6197       489         295      BellSouth Network Solutions, 
 4355       400         289      EarthLink, Inc. 
 6347       363         285      SAVVIS Communications Corpora
 6198       460         283      BellSouth Network Solutions, 
 1239       948         281      Sprint 
 4814       295         276      China Telecom (Group)
22927       288         275      TELEFONICA DE ARGENTINA 
27364       294         274      Armstrong Cable Services 
22909       273         258      Comcast Cable Corporation 
 2386       547         249      AT&T Data Communications Serv

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

Bad AS  Designation  Network              Transit AS  Description
65516   PRIVATE       61.232.70.0/24       17621       China Netcom Corp.
65516   PRIVATE       61.232.71.0/24       17621       China Netcom Corp.
65516   PRIVATE       61.232.72.0/22       17621       China Netcom Corp.
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
64732   PRIVATE       202.38.166.0/23       9808       Guangdong Mobile Com

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
192.16.52.0/24        1239     Sprint 
192.43.230.0/24       4738     South Australian Academic Res
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
192.136.135.0/24      1239     Sprint 
192.153.136.0/21       568     DISO-UNRRA 
192.158.254.0/24       705     UUNET Technologies, Inc. 
192.172.0.0/19         568     DISO-UNRRA 

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       /10:8       /11:13      /12:52      
/13:98      /14:254     /15:467     /16:7417    /17:1680    /18:2973    
/19:8432    /20:8466    /21:6141    /22:9054    /23:10672   /24:69299   
/25:155     /26:204     /27:54      /28:32      /29:21      /30:21      
/31:0       /32:25      

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

  ASN   No of nets  Total ann.   Description
  189      628           705      Genuity 
11305      583           657      Interland Incorporated 
18566      575           581      Covad Communications 
 3908      571           916      Supernet, Inc. 
 7018      462          1335      AT&T 
  702      459           750      UUNET - Commercial IP service
  701      442          1565      UUNET Technologies, Inc. 
 7843      421           656      Adelphia Corp. 
  690      413           455      Merit Network 
 7066      379           482      Virginia Polytechnic Institut
 6197      365           489      BellSouth Network Solutions, 
 6198      358           460      BellSouth Network Solutions, 
 1239      354           948      Sprint 
 2386      330           547      AT&T Data Communications Serv
20115      325           464      Charter Communications 
 3320      289           346      Deutsche Telekom AG
27364      287           294      Armstrong Cable Services 
 4814      281           295      China Telecom (Group)
    1      239           638      GENUITY 
22927      226           288      TELEFONICA DE ARGENTINA 

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

  12:705      13:1        15:4        16:1        17:3        20:8      
  24:832      25:1        32:87       38:58       40:20       44:2      
  55:1        57:17       61:459      62:408      63:1876     64:1914   
  65:1938     66:2493     67:176      68:379      69:159      80:351    
  81:127     128:141     129:177     130:47      131:78      132:12     
 133:1       134:176     135:3       136:117     137:107     138:109    
 139:64      140:138     141:117     142:93      143:44      144:103    
 145:14      146:273     147:96      148:290     149:68      150:44     
 151:74      152:233     153:57      154:3       155:115     156:50     
 157:40      158:126     159:143     160:43      161:76      162:129    
 163:76      164:308     165:144     166:93      167:322     168:397    
 169:62      170:312     171:7       192:5314    193:2434    194:1958   
 195:1024    196:479     198:3567    199:2721    200:2981    202:3768   
 203:5250    204:2996    205:2042    206:2384    207:2409    208:2616   
 209:2881    210:813     211:335     212:999     213:795     214:20     
 215:23      216:3516    217:619     218:79      219:38      220:94     
 221:2      

End of report



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