[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Oct 31 13:06:36 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 01 Nov, 2003

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

BGP routing table entries examined:                              130815
    Prefixes after maximum aggregation:                           80863
    Unique aggregates announced to Internet:                      62654
Total ASes present in the Internet Routing Table:                 16113
Origin-only ASes present in the Internet Routing Table:           13977
Origin ASes announcing only one prefix:                            6377
Transit ASes present in the Internet Routing Table:                2136
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       4.8
    Max AS path length visible:                                      21
Illegal AS announcements present in the Routing Table:                2
Non-routable prefixes present in the Routing Table:                   0
Prefixes being announced from unallocated address space:             14
Number of addresses announced to Internet:                   1250623620
    Equivalent to 74 /8s, 139 /16s and 0 /24s
    Percentage of available address space announced:               33.7
    Percentage of allocated address space announced:               60.3
    Percentage of available address space allocated:               56.0
Total number of prefixes smaller than registry allocations:       57815

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

Prefixes being announced by APNIC Region ASes:                    23212
    Total APNIC prefixes after maximum aggregation:               12931
Prefixes being announced from the APNIC address blocks:           21602
    Unique aggregates announced from the APNIC address blocks:    12520
APNIC Region origin ASes present in the Internet Routing Table:    1938
APNIC Region origin ASes announcing only one prefix:                570
APNIC Region transit ASes present in the Internet Routing Table:    314
Average APNIC Region AS path length visible:                        4.9
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              124557312
    Equivalent to 7 /8s, 108 /16s and 152 /24s
    Percentage of available APNIC address space announced:         67.1

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:                     78020
    Total ARIN prefixes after maximum aggregation:                48178
Prefixes being announced from the ARIN address blocks:            60766
    Unique aggregates announced from the ARIN address blocks:     20814
ARIN Region origin ASes present in the Internet Routing Table:     8718
ARIN Region origin ASes announcing only one prefix:                3018
ARIN Region transit ASes present in the Internet Routing Table:     838
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               208380320
    Equivalent to 12 /8s, 107 /16s and 161 /24s
    Percentage of available ARIN address space announced:          73.1

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:                     22896
    Total RIPE prefixes after maximum aggregation:                16777
Prefixes being announced from the RIPE address blocks:            19764
    Unique aggregates announced from the RIPE address blocks:     13078
RIPE Region origin ASes present in the Internet Routing Table:     4930
RIPE Region origin ASes announcing only one prefix:                2655
RIPE Region transit ASes present in the Internet Routing Table:     873
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               138494464
    Equivalent to 8 /8s, 65 /16s and 66 /24s
    Percentage of available RIPE address space announced:          75.0

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
                       30720 - 31743
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:                    5588
    Total LACNIC prefixes after maximum aggregation:               2277
Prefixes being announced from the LACNIC address blocks:           5086
    Unique aggregates announced from the LACNIC address blocks:    3261
LACNIC Region origin ASes present in the Internet Routing Table:    357
LACNIC Region origin ASes announcing only one prefix:               103
LACNIC Region transit ASes present in the Internet Routing Table:    71
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        12
Number of LACNIC addresses announced to Internet:              13456640
    Equivalent to 0 /8s, 205 /16s and 85 /24s
    Percentage of available LACNIC address space announced:        40.1

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

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

Prefixes being announced by AfriNIC Region ASes:                   1098
    Total AfriNIC prefixes after maximum aggregation:               700
Prefixes being announced from the AfriNIC address blocks:           718
    Unique aggregates announced from the AfriNIC address blocks:    553
AfriNIC Region origin ASes present in the Internet Routing Table:    96
AfriNIC Region origin ASes announcing only one prefix:               31
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:              1748736
    Equivalent to 0 /8s, 26 /16s and 175 /24s
    Percentage of available AfriNIC address space announced:       10.4

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      954       1108         677   Telstra Pty Ltd
 4755      384        131          67   Videsh Sanchar Nigam Ltd. Aut
 2907      367       1879         344   SINET Japan
 4134      366       2293         106   Data Communications Bureau
  703      333        356         266   UUNET
 2764      296        288         254   connect.com.au pty ltd
17557      293         20         150   Pakistan Telecom
17676      279       4124          34   XTAGE CORPORATION
 9583      271         44          11   Satyam Infoway Ltd.,
 7474      264        306         210   Optus Communications Pty Ltd
 4766      249       2462         184   Korea Internet Exchange for "
 3786      233        773         203   DACOM Corporation
 4538      215       1714          21   China Education and Research 
 9443      213         72          83   Primus Telecommunications
 9800      203        342          54   CHINA UNICOM
 9942      202         70         117   COMindico Australia
 9498      201         21          26   BHARTI BT INTERNET LTD.
 9929      192        160          36   China Netcom Corp.
17642      157         40         116   RequestDSL BGP AS# for Sydney
 4739      145         58         134   Commerical Internet eXchange 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  209     2058       3403         540   Qwest 
  701     1445       8667        1000   UUNET Technologies, Inc. 
 7018     1363       7065         945   AT&T 
 1239      919       3052         665   Sprint 
18566      715        176           8   Covad Communications 
 4323      680        576         196   Time Warner Communications, I
 6197      648        445         242   BellSouth Network Solutions, 
 3356      622      10819         511   Level 3 Communications, LLC 
 6198      573        328         197   BellSouth Network Solutions, 
20115      539        278         305   Charter Communications 
  852      516       1123         409   Telus Advanced Communications
 7066      511        207         271   Virginia Polytechnic Institut
 7843      509        481         128   Adelphia Corp. 
19029      425        174         275   New Edge Networks 
 7132      415       7191         283   Southwestern Bell Internet Se
  690      410         59         275   Merit Network 
 4355      398        332         108   EarthLink, Inc. 
  705      394        183         238   UUNET Technologies, Inc. 
 2386      388        526         201   AT&T Data Communications Serv
  376      359        359         114   Reseau Interordinateurs Scien

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      697       2094         579   UUNET - Commercial IP service
 3301      311       1170         289   TeliaNet Sweden
 3320      279       2004         236   Deutsche Telekom AG
 8220      258        421         247   COLT Internet - International
 1257      239        455         190   SWIPnet Swedish IP Network
  680      232       2054         229   DFN-IP service G-WiN
13083      215         51           8   Mannesmann Datenverarbeitung 
 5400      186        172         134   BT Ignite European Backbone
 5515      185        778         146   Sonera Solution Autonomous Sy
 3215      183        688          90   France Telecom Transpac
  786      174       1825         174   The JANET IP Service
 8708      160        111         154   Romania Data Systems S.A.
 3303      146        557         141   Swisscom Ltd
  719      136        288         105   LANLINK autonomous system
 6664      134         11          99   TELECOM ITALIA
25186      132        180          93   France Telecom Transpac's Tra
12302      126         18          33   MobiFon S.A.
 3246      125        374         123   Song Networks
 2856      118       1294         109   BTnet UK Regional network
 3269      117        910          64   TELECOM ITALIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      337        104          99   ImpSat
 8151      237        351         127   UniNet S.A. de C.V. 
 7303      194         42          47   Telecom Argentina Stet-France
11172      192         77          42   Servicios Alestra S.A de C.V 
16814      156         10           5   NSS, S.A. 
 6505      134         91          94   Global One Communicaoes Ltda 
 6503      128        205          92   AVANTEL, S.A. 
10620      122          8          26   TVCABLE BOGOTA 
 6147      111         70          19   Telefonica Del Peru 
11340      105          3          28   Red Universitaria Nacional 
11992       88         24          30   Integrated Systems 
 8065       86         10          18   Empresas Publicas de Medellin
15311       76         16          39   Telefonica Empresas 
 6535       75          5          18   Chilesat Servicios  Empresari
11830       74         22          29   Instituto Costarricense de El
 4270       68         18           9   Red de Interconexion Universi
11311       66          7          22   Sinectis S.A. 
 7080       64          4           1   Electronica y Comunicaciones 
27699       60        152          15   TELECOMUNICACOES DE SAO PAULO
 1916       59        250          39   Fundacao de Amparo a Pesquisa

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      250        632         219   The Internet Solution 
 2018       94        297          92   Tertiary Education Network 
 5536       87          7          23   Internet Egypt Network
 2905       59        245          52   The Internetworking Company o
 2561       56          6           3   Egyptian Universities Network
11845       35          9          10   Data Pro Business Online 
11569       31         29          28   satellite data networks 
16284       30          3           5   GST-N Autonomous System
12455       26          4           2   Jambonet Autonomous system
 5713       24         93          22   Telkom SA Ltd 
16637       24          9          17   Johnnic e-Ventures 
 6713       22         38           9   Itissalat Al-MAGHRIB
 9129       22          3           4   UUNET Kenya
10798       17          1          11   Standard Bank of South Africa
15706       15          2           5   Sudatel Internet Exchange Aut
 8524       14          1           3   AUCEGYPT Autonomous System
12258       14          3           9   Vodacom Internet Company 
17148       14          1           8   First National Bank 
 3208       13          2           1   ARN Network
 8346       12          6          12   SONATEL-AS Autonomous System

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

  ASN   No of nets  Net Savings Description
18566       715         707      Covad Communications 
 4323       680         484      Time Warner Communications, I
  701      1445         445      UUNET Technologies, Inc. 
 7018      1363         418      AT&T 
 6197       648         406      BellSouth Network Solutions, 
 7843       509         381      Adelphia Corp. 
 6198       573         376      BellSouth Network Solutions, 
 4755       384         317      Videsh Sanchar Nigam Ltd. Aut
27364       316         293      Armstrong Cable Services 
 5668       310         293      Century Telephone 
 4355       398         290      EarthLink, Inc. 
22909       305         284      Comcast Cable Corporation 
22773       296         279      Cox Communications, Inc. Atla
 1221       954         277      Telstra Pty Ltd
 6347       346         266      SAVVIS Communications Corpora
 4134       366         260      Data Communications Bureau
 9583       271         260      Satyam Infoway Ltd.,
 1239       919         254      Sprint 
  376       359         245      Reseau Interordinateurs Scien
17676       279         245      XTAGE CORPORATION

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

Bad AS  Designation  Network              Transit AS  Description
18413   UNALLOCATED   61.67.0.0/20          4747       Taiwan Telecommunica
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U

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
192.153.136.0/21       568     DISO-UNRRA 
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        /8:19       /9:4       /10:6       /11:12      /12:55      
/13:99      /14:270     /15:470     /16:7449    /17:1787    /18:3245    
/19:8589    /20:9196    /21:6710    /22:9719    /23:10901   /24:71560   
/25:160     /26:221     /27:159     /28:71      /29:23      /30:50      
/31:0       /32:40      

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

  ASN   No of nets  Total ann.   Description
  209      747          2058      Qwest 
18566      709           715      Covad Communications 
 6197      505           648      BellSouth Network Solutions, 
 7018      490          1363      AT&T 
  701      444          1445      UUNET Technologies, Inc. 
 6198      440           573      BellSouth Network Solutions, 
  702      418           697      UUNET - Commercial IP service
 7066      403           511      Virginia Polytechnic Institut
  690      371           410      Merit Network 
20115      347           539      Charter Communications 
 1239      326           919      Sprint 
27364      310           316      Armstrong Cable Services 
 3356      307           622      Level 3 Communications, LLC 
 5668      276           310      Century Telephone 
19029      276           425      New Edge Networks 
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      221           279      Deutsche Telekom AG
 4355      221           398      EarthLink, Inc. 
10753      217           265      XCOM Technologies, INC. 
 6517      210           234      Yipes Communications, Inc. 

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

   4:2        12:726      13:1        15:6        16:1        17:2      
  20:7        24:819      25:1        32:82       38:52       40:23     
  43:1        44:2        55:1        57:14       61:333      62:456    
  63:1902     64:1826     65:1855     66:2189     67:287      68:394    
  69:293      80:428      81:167      82:74      128:157     129:157    
 130:63      131:82      132:17      134:168     135:10      136:178    
 137:120     138:130     139:48      140:176     141:137     142:102    
 143:48      144:60      145:36      146:282     147:67      148:305    
 149:81      150:121     151:78      152:213     153:59      154:1      
 155:131     156:65      157:60      158:140     159:142     160:46     
 161:68      162:362     163:67      164:332     165:155     166:100    
 167:311     168:177     169:96      170:317     171:9       192:5447   
 193:2429    194:2020    195:1332    196:511     198:3669    199:2838   
 200:3085    201:3       202:4131    203:5308    204:3123    205:2151   
 206:2295    207:2718    208:2512    209:2841    210:952     211:392    
 212:934     213:942     214:17      215:21      216:3352    217:782    
 218:117     219:89      220:113     221:17      222:1      

End of report



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