[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Dec 5 13:12:46 EST 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   04:00 +10GMT Sat 06 Dec, 2003

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

BGP routing table entries examined:                            107846
    Prefixes after maximum aggregation:                         68312
    Unique aggregates announced to Internet:                    51698
Total ASes present in the Internet Routing Table:               14250
Origin-only ASes present in the Internet Routing Table:         12314
Origin ASes announcing only one prefix:                          5808
Transit ASes present in the Internet Routing Table:              1936
Transit-only ASes present in the Internet Routing Table:          197
Average AS path length visible in the Internet Routing Table:     4.7
    Max AS path length visible:                                    19
Illegal AS announcements present in the Routing Table:              1
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           13
Number of addresses announced to Internet:                 1079247812
    Equivalent to 64 /8s, 84 /16s and 3 /24s
    Percentage of available address space announced:             29.1
    Percentage of allocated address space announced:             50.8
    Percentage of available address space allocated:             57.3
Total number of prefixes smaller than registry allocations:     42803

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

Prefixes being announced by APNIC Region ASes:                  17275
    Total APNIC prefixes after maximum aggregation:              9842
Prefixes being announced from the APNIC address blocks:         15665
    Unique aggregates announced from the APNIC address blocks:   9803
APNIC Region origin ASes present in the Internet Routing Table:  1591
APNIC Region origin ASes announcing only one prefix:              548
APNIC Region transit ASes present in the Internet Routing Table:  278
Average APNIC Region AS path length visible:                      4.9
    Max APNIC Region AS path length visible:                       16
Number of APNIC addresses announced to Internet:             39464448
    Equivalent to 2 /8s, 90 /16s and 46 /24s
    Percentage of available APNIC address space announced:       21.3

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:                     67451
    Total ARIN prefixes after maximum aggregation:                42626
Prefixes being announced from the ARIN address blocks:            50102
    Unique aggregates announced from the ARIN address blocks:     16732
ARIN Region origin ASes present in the Internet Routing Table:     8220
ARIN Region origin ASes announcing only one prefix:                3012
ARIN Region transit ASes present in the Internet Routing Table:     787
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               186504832
    Equivalent to 11 /8s, 29 /16s and 214 /24s
    Percentage of available ARIN address space announced:          65.4

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, 29695 - 30719
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     16889
    Total RIPE prefixes after maximum aggregation:                13117
Prefixes being announced from the RIPE address blocks:            13314
    Unique aggregates announced from the RIPE address blocks:      9061
RIPE Region origin ASes present in the Internet Routing Table:     3798
RIPE Region origin ASes announcing only one prefix:                2113
RIPE Region transit ASes present in the Internet Routing Table:     758
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:                97725056
    Equivalent to 5 /8s, 211 /16s and 42 /24s
    Percentage of available RIPE address space announced:          44.8

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
                       30720 - 31743
RIPE Address Blocks    62/8, 80/6, 84/8, 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:               2103
Prefixes being announced from the LACNIC address blocks:           5094
    Unique aggregates announced from the LACNIC address blocks:    3102
LACNIC Region origin ASes present in the Internet Routing Table:    364
LACNIC Region origin ASes announcing only one prefix:               106
LACNIC Region transit ASes present in the Internet Routing Table:    68
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC addresses announced to Internet:              13566208
    Equivalent to 0 /8s, 207 /16s and 1 /24s
    Percentage of available LACNIC address space announced:        40.4

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

Emerging AfriNIC Region Analysis Summary
----------------------------------------

Prefixes being announced by AfriNIC Region ASes:                    926
    Total AfriNIC prefixes after maximum aggregation:               624
Prefixes being announced from the AfriNIC address blocks:           724
    Unique aggregates announced from the AfriNIC address blocks:    556
AfriNIC Region origin ASes present in the Internet Routing Table:    80
AfriNIC Region origin ASes announcing only one prefix:               29
AfriNIC Region transit ASes present in the Internet Routing Table:   10
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              1757184
    Equivalent to 0 /8s, 26 /16s and 208 /24s
    Percentage of available AfriNIC address space announced:       10.5

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221      923       1116         663   Telstra Pty Ltd
 2907      359       1840         336   SINET Japan
  703      315        301         250   UUNET
 4755      309         98          58   Videsh Sanchar Nigam Ltd. Aut
17557      291         21         155   Pakistan Telecom
 2764      269        224         237   connect.com.au pty ltd
 7474      262        306         212   Optus Communications Pty Ltd
 4134      212        791          50   Data Communications Bureau
 9443      207         25          76   Primus Telecommunications
 9942      173         52         121   COMindico Australia
 9498      172         22          31   BHARTI BT INTERNET LTD.
17642      148         39         109   RequestDSL BGP AS# for Sydney
 4739      140         60         130   Commerical Internet eXchange 
 7633      138         23          39   Software Technology Parks of 
 4766      134        436          88   Korea Internet Exchange for "
 9238      124          8          27   TATA ISP
 4795      113         16          45   INDOSATNET-ASN
17536      112          8          43   Prodidgy Telecommunications
 4538      111        458           8   China Education and Research 
 4657      111         71          24   Starhub Internet, Singapore

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1350       8554         935   UUNET Technologies, Inc. 
 7018     1339       6973         932   AT&T 
 1239      886       3054         617   Sprint 
  209      805       3253         493   Qwest 
18566      731        176           8   Covad Communications 
 6197      645        418         153   BellSouth Network Solutions, 
 3356      621      10656         494   Level 3 Communications, LLC 
20115      556        317         325   Charter Communications 
 7843      519        497         117   Adelphia Corp. 
 4323      518        556         187   Time Warner Communications, I
 7066      511        207         271   Virginia Polytechnic Institut
  852      487       1024         389   Telus Advanced Communications
 6198      473        328         179   BellSouth Network Solutions, 
 7132      437       7071         302   Southwestern Bell Internet Se
  690      400         58         270   Merit Network 
 2386      382        525         205   AT&T Data Communications Serv
  376      357        359         114   Reseau Interordinateurs Scien
27364      354         28          24   Armstrong Cable Services 
  705      345        184         216   UUNET Technologies, Inc. 
19029      344         91         274   New Edge Networks 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      604       1750         513   UUNET - Commercial IP service
 3301      292        940         277   TeliaNet Sweden
 3320      266       1032         217   Deutsche Telekom AG
  680      231       2022         227   DFN-IP service G-WiN
 1257      221        345         176   SWIPnet Swedish IP Network
 8220      216        261         210   COLT Internet - International
13083      215         51           8   Mannesmann Datenverarbeitung 
  786      173       1808         173   The JANET IP Service
 5515      171        743         133   Sonera Solution Autonomous Sy
 3246      162        351         160   Song Networks
25186      159        214         117   France Telecom Transpac's Tra
 5400      139        139         124   BT Ignite European Backbone
 3215      136        626          64   France Telecom Transpac
 3303      135        472         128   Swisscom Ltd
  719      131        272         102   LANLINK autonomous system
 8708      131        104         127   Romania Data Systems S.A.
 2856      105        936          97   BTnet UK Regional network
 3269       90        738          49   TELECOM ITALIA
  137       83        637          81   GARR Italian academic and res
 3292       82        617          80   TDC Tele Danmark

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      346        120          66   ImpSat
 8151      240        350         124   UniNet S.A. de C.V. 
11172      195         77          43   Servicios Alestra S.A de C.V 
 7303      184         46          17   Telecom Argentina Stet-France
16814      156         10           5   NSS, S.A. 
 6503      127        204          93   AVANTEL, S.A. 
 6147      124         78          20   Telefonica Del Peru 
11340      108          3          29   Red Universitaria Nacional 
 6505       90         83          57   Global One Communicaoes Ltda 
10620       85          6          13   TVCABLE BOGOTA 
11992       85         24          31   Integrated Systems 
15311       76         16          39   Telefonica Empresas 
 6535       75          5          18   Chilesat Servicios  Empresari
 8065       73         10          17   Empresas Publicas de Medellin
 4270       71         18           9   Red de Interconexion Universi
 7080       64          4           1   Electronica y Comunicaciones 
14420       62          4          21   ANDINATEL S.A. 
27699       60        152          15   TELECOMUNICACOES DE SAO PAULO
 1916       59        247          39   Fundacao de Amparo a Pesquisa
 7738       58        202          13   Telecomunicacoes da Bahia S.A

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      249        632         218   The Internet Solution 
 2018       94        297          92   Tertiary Education Network 
 5536       66          6          13   Internet Egypt Network
 2905       60        245          53   The Internetworking Company o
 2561       57          6           3   Egyptian Universities Network
 5713       24         93          22   Telkom SA Ltd 
11569       24         27          21   satellite data networks 
11845       24          5           9   Data Pro Business Online 
 9129       23          2           3   UUNET Kenya
16637       23          7          18   Johnnic e-Ventures 
10798       18          1          12   Standard Bank of South Africa
 3208       17          2           1   ARN Network
 6713       17         30           8   Itissalat Al-MAGHRIB
12258       15          3          10   Vodacom Internet Company 
17148       14          1           8   First National Bank 
 6879       11          1           3   EUnet Egypt
 2609       10          8           2   Tunisia BackBone AS
 8346       10          2          10   SONATEL-AS Autonomous System
12455       10          2           1   Jambonet Autonomous system
10474        9          9           8   NetActive ISP 

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

  ASN   No of nets  Net Savings Description
18566       731         723      Covad Communications 
 6197       645         492      BellSouth Network Solutions, 
 7018      1339         407      AT&T 
 7843       519         402      Adelphia Corp. 
 4323       518         331      Time Warner Communications, I
27364       354         330      Armstrong Cable Services 
  209       805         312      Qwest 
22909       317         305      Comcast Cable Corporation 
 6198       473         294      BellSouth Network Solutions, 
22773       311         283      Cox Communications, Inc. Atla
 6140       346         280      ImpSat
 1239       886         269      Sprint 
 1221       923         260      Telstra Pty Ltd
 4755       309         251      Videsh Sanchar Nigam Ltd. Aut
  376       357         243      Reseau Interordinateurs Scien
25844       244         242      Skadden, Arps, Slate, Meagher
 7066       511         240      Virginia Polytechnic Institut
 4355       306         232      EarthLink, Inc. 
20115       556         231      Charter Communications 
14900       250         217      US LEC Corp 

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

Bad AS  Designation  Network              Transit AS  Description
64512   PRIVATE       131.95.1.240/28      16430       University of Southe

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

Network            Origin AS  Description
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
192.43.230.0/24       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
192.172.0.0/19         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       /9:3       /10:6       /11:12      /12:50      
/13:77      /14:224     /15:387     /16:6611    /17:1276    /18:2285    
/19:5620    /20:6805    /21:5459    /22:7635    /23:9381    /24:61468   
/25:136     /26:156     /27:77      /28:59      /29:21      /30:50      
/31:0       /32:30      

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

  ASN   No of nets  Total ann.   Description
18566      725           731      Covad Communications 
 6197      511           645      BellSouth Network Solutions, 
 7018      464          1339      AT&T 
 7066      403           511      Virginia Polytechnic Institut
  702      372           604      UUNET - Commercial IP service
  701      366          1350      UUNET Technologies, Inc. 
  690      361           400      Merit Network 
27364      348           354      Armstrong Cable Services 
 6198      341           473      BellSouth Network Solutions, 
20115      339           556      Charter Communications 
 3356      307           621      Level 3 Communications, LLC 
 1239      292           886      Sprint 
  209      261           805      Qwest 
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      217           266      Deutsche Telekom AG
19029      199           344      New Edge Networks 
14654      191           195      Wayport 
13083      188           215      Mannesmann Datenverarbeitung 
 6140      184           346      ImpSat
 7843      183           519      Adelphia Corp. 

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

   4:2        12:755      13:1        15:6        16:1        17:3      
  20:7        24:870      32:82       38:44       40:24       43:1      
  44:2        55:1        56:1        57:14       61:306      62:449    
  63:1847     64:1817     65:1817     66:2189     67:283      68:642    
  69:352      80:443      81:166      82:34      128:148     129:264    
 130:70      131:80      132:17      134:191     135:16      136:182    
 137:112     138:127     139:29      140:162     141:140     142:111    
 143:49      144:64      145:39      146:289     147:71      148:315    
 149:86      150:118     151:60      152:209     153:56      154:1      
 155:128     156:60      157:62      158:136     159:137     160:46     
 161:49      162:364     163:73      164:334     165:174     166:104    
 167:212     168:182     169:94      170:307     171:9       192:5492   
 193:2465    194:2006    195:1287    196:515     198:3633    199:2841   
 200:3044    201:2       202:4211    203:5355    204:2942    205:2018   
 206:2270    207:2618    208:2486    209:647    

End of report



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