[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Nov 8 05:05:19 EST 2002


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 08 Nov, 2002

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

BGP routing table entries examined:                            117475
    Prefixes after maximum aggregation:                         75129
    Unique aggregates announced to Internet:                    56268
Total ASes present in the Internet Routing Table:               14029
Origin-only ASes present in the Internet Routing Table:         12150
Origin ASes announcing only one prefix:                          5470
Transit ASes present in the Internet Routing Table:              1879
Transit-only ASes present in the Internet Routing Table:           62
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    23
Illegal AS announcements present in the Routing Table:              7
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    35
Number of addresses announced to Internet:                 1182646652
    Equivalent to 70 /8s, 125 /16s and 193 /24s
    Percentage of available address space announced:             31.9
    Percentage of allocated address space announced:             58.5
    Percentage of available address space allocated:             54.6
Total number of prefixes smaller than registry allocations:     49536

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

Prefixes being announced by APNIC Region ASes:                  19149
    Total APNIC prefixes after maximum aggregation:             11435
Prefixes being announced from the APNIC address blocks:         17688
    Unique aggregates announced from the APNIC address blocks:  11164
APNIC Region origin ASes present in the Internet Routing Table:  1638
APNIC Region origin ASes announcing only one prefix:              522
APNIC Region transit ASes present in the Internet Routing Table:  286
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       12
Number of APNIC addresses announced to Internet:            100198336
    Equivalent to 5 /8s, 248 /16s and 231 /24s
    Percentage of available APNIC address space announced:       65.9

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 220/7

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

Prefixes being announced by ARIN Region ASes:                   73464
    Total ARIN prefixes after maximum aggregation:              46604
Prefixes being announced from the ARIN address blocks:          51373
    Unique aggregates announced from the ARIN address blocks:   15607
ARIN Region origin ASes present in the Internet Routing Table:   7884
ARIN Region origin ASes announcing only one prefix:              2624
ARIN Region transit ASes present in the Internet Routing Table:   751
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        23
Number of ARIN addresses announced to Internet:             182633696
    Equivalent to 10 /8s, 226 /16s and 196 /24s
    Percentage of available ARIN address space announced:        68.0

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:                   19972
    Total RIPE prefixes after maximum aggregation:              14993
Prefixes being announced from the RIPE address blocks:          16631
    Unique aggregates announced from the RIPE address blocks:   11170
RIPE Region origin ASes present in the Internet Routing Table:   4130
RIPE Region origin ASes announcing only one prefix:              2242
RIPE Region transit ASes present in the Internet Routing Table:   763
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        16
Number of RIPE addresses announced to Internet:             119174080
    Equivalent to 7 /8s, 26 /16s and 115 /24s
    Percentage of available RIPE address space announced:        78.9

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
RIPE Address Blocks    62/8, 80/7, 193/8, 194/7, 212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                  4884
    Total LACNIC prefixes after maximum aggregation:             2097
Prefixes being announced from the LACNIC address blocks:         4225
    Unique aggregates announced from the LACNIC address blocks:  2688
LACNIC Region origin ASes present in the Internet Routing Table:  318
LACNIC Region origin ASes announcing only one prefix:              82
LACNIC Region transit ASes present in the Internet Routing Table:  69
Average LACNIC Region AS path length visible:                     5.9
    Max LACNIC Region AS path length visible:                      17
Number of LACNIC addresses announced to Internet:            11713024
    Equivalent to 0 /8s, 178 /16s and 186 /24s
    Percentage of available LACNIC address space announced:      69.8

LACNIC AS Blocks       26592 - 26623
LACNIC Address Blocks  200/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1187       1168         862   Telstra Pty Ltd
  703      392        365         311   UUNET
 2907      351       1752         331   SINET Japan
 2764      336        356         308   connect.com.au pty ltd
17557      317         23         121   Pakistan Telecom
 7474      298        279         197   Optus Communications Pty Ltd
 4134      296       2287          98   Data Communications Bureau
 4755      276        138          74   Videsh Sanchar Nigam Ltd. Aut
 4766      250       1808         158   Korea Internet Exchange for "
 4814      233         79          15   China Telecom (Group)
17676      227       3554          29   XTAGE CORPORATION
 9443      183         57          71   Primus Telecommunications
 9583      164         32           6   Satyam Infoway Ltd.,
 4515      139        102          77   Star Internet Services Ltd.
 9768      135        385          74   Korea Telecom
 4716      129        722         123   TTnet
 7657      123         24          89   The Internet Group Limited
 9800      122        188          24   CHINA UNICOM
 4739      118         56         109   Commerical Internet eXchange 
 4621      117         11          66   UNINET-TH

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1757       9121        1243   UUNET Technologies, Inc. 
 7018     1338       7160         934   AT&T 
 3908     1095       1668         511   Supernet, Inc. 
 1239      894       3166         660   Sprint 
 7843      788        374         319   Adelphia Corp. 
  852      693       1147         467   Telus Advanced Communications
    1      664       8106         439   GENUITY 
19029      649        127          28   New Edge Networks 
  209      630       2032         328   Qwest 
 7046      588        860         290   UUNET Technologies, Inc. 
  690      513         75         322   Merit Network 
 4323      513        435         174   Time Warner Communications, I
 7066      485        204         256   Virginia Polytechnic Institut
  705      442        134         202   UUNET Technologies, Inc. 
 6197      436        233         200   BellSouth Network Solutions, 
 2548      410       1116         249   Business Internet, Inc. 
 3549      409        728         293   Global Crossing 
 6198      405        176         198   BellSouth Network Solutions, 
 4355      398        311         116   EarthLink, Inc. 
 3561      392       2266         341   Cable & Wireless USA 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      827       2366         694   UUNET - Commercial IP service
 3301      379       1164         336   TeliaNet Sweden
 3215      311        805         173   France Telecom Transpac
 3320      246       1964         222   Deutsche Telekom AG
  680      238       2151         234   DFN-IP service G-WiN
 5515      210        783         175   Sonera Solution Autonomous Sy
 1257      207        415         202   SWIPnet Swedish IP Network
 5400      196         86         114   BT Ignite European Backbone
  719      192        307         131   LANLINK autonomous system
  786      176       1873         176   The JANET IP Service
 2856      170       1303         132   BTnet UK Regional network
 8708      162         41         148   Romania Data Systems S.A.
 3303      143        517         142   Swisscom Ltd
20858      136          9          33   This AS will be used to conne
12302      123         18          30   MobiFon S.A.
 3246      119        375         116   Song Networks
 8220      114        169         106   COLT Internet - International
 3269      110        752          63   TELECOM ITALIA
 3233      106         10           8   RNC - Romanian Natioanal R&D 
 2874       99         85          39   Global One Services AB

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      253        114          58   ImpSat USA, Inc. 
 8151      213        347         112   UniNet S.A. de C.V. 
 7303      183         28          50   Telecom Argentina Stet-France
11172      168         88          34   Servicios Alestra S.A de C.V 
 6503      153        175         109   AVANTEL, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
16814      106          7          12   NSS, S.A. 
10620       99          6          30   TVCABLE BOGOTA 
11992       81          8          30   Integrated Systems 
11340       78          2          29   Red Universitaria Nacional 
15311       77         27          33   Telefonica Empresas 
 1916       74        425          41   Fundacao de Amparo a Pesquisa
 4270       71         18          10   Red de Interconexion Universi
 6535       71          4          15   Chilesat Servicios  Empresari
 7984       64         27          41   Global One Colombia 
 4926       63          4          51   Telintar S.A. 
 2277       62         16           3   ECUANET - CORPORACION ECUATOR
 8065       61          6          16   Empresas Publicas de Medellin
15034       60          5          34   TIBA SA 
 7927       55          5          39   Global One Venezuela 

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

  ASN   No of nets  Net Savings Description
19029       649         621      New Edge Networks 
 3908      1095         584      Supernet, Inc. 
 7843       788         469      Adelphia Corp. 
 7018      1338         404      AT&T 
 4323       513         339      Time Warner Communications, I
18566       341         337      Covad Communications 
 1221      1187         325      Telstra Pty Ltd
 4151       337         321      USDA 
 1580       321         308      ANOSCEUR 
  209       630         302      Qwest 
 7046       588         298      UUNET Technologies, Inc. 
 6347       359         284      SAVVIS Communications Corpora
 4355       398         282      EarthLink, Inc. 
  705       442         240      UUNET Technologies, Inc. 
  376       343         240      Reseau Interordinateurs Scien
 6197       436         236      BellSouth Network Solutions, 
 1239       894         234      Sprint 
 7066       485         229      Virginia Polytechnic Institut
  852       693         226      Telus Advanced Communications
    1       664         225      GENUITY 

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

Bad AS  Designation  Network              Transit AS  Description
65025   PRIVATE       81.26.65.0/24        11042       Orion Network System
65010   PRIVATE       168.167.21.0/24      11042       Orion Network System
65501   PRIVATE       200.73.24.0/24       18747       IFX Communication Ve
65501   PRIVATE       200.73.26.0/24       18747       IFX Communication Ve
65501   PRIVATE       200.73.27.0/24       18747       IFX Communication Ve
65501   PRIVATE       200.73.28.0/24       18747       IFX Communication Ve
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
134.137.0.0/16        7170     AT&T Government Markets 
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
138.94.0.0/16            1     GENUITY 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
164.236.0.0/16         568     DISO-UNRRA 
192.31.242.0/24        771     NASA Ames Research Center 
192.44.0.0/19          702     UUNET - Commercial IP service
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
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
192.91.198.0/24       2568     CTS Network Services 
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
192.136.136.0/24      7046     UUNET Technologies, Inc. 
192.136.136.0/22       568     DISO-UNRRA 
192.139.62.0/24       6539     GT Group Telecom Services Cor
192.140.0.0/16        5511     France Telecom
192.153.136.0/21       568     DISO-UNRRA 
192.156.0.0/19         568     DISO-UNRRA 
192.156.164.0/24     19548     Adelphia Business Solutions 
192.172.0.0/19         568     DISO-UNRRA 
192.208.29.0/24       3908     Supernet, Inc. 
192.208.30.0/23       3908     Supernet, Inc. 
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       /9:5       /10:8       /11:12      /12:46      
/13:90      /14:239     /15:430     /16:7308    /17:1533    /18:2725    
/19:7888    /20:7517    /21:5356    /22:8219    /23:9933    /24:65078   
/25:186     /26:221     /27:129     /28:128     /29:103     /30:229     
/31:19      /32:56      

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

  ASN   No of nets  Total ann.   Description
 3908      641          1095      Supernet, Inc. 
19029      615           649      New Edge Networks 
 7843      601           788      Adelphia Corp. 
  702      498           827      UUNET - Commercial IP service
  701      488          1757      UUNET Technologies, Inc. 
  690      461           513      Merit Network 
 7018      431          1338      AT&T 
 7066      384           485      Virginia Polytechnic Institut
18566      336           341      Covad Communications 
 6197      329           436      BellSouth Network Solutions, 
 6198      321           405      BellSouth Network Solutions, 
  209      318           630      Qwest 
 1580      307           321      ANOSCEUR 
 1239      282           894      Sprint 
 7046      278           588      UUNET Technologies, Inc. 
 3215      235           311      France Telecom Transpac
11492      228           233      Cable One 
 3301      225           379      TeliaNet Sweden
 4355      222           398      EarthLink, Inc. 
11537      220           226      University Corporation for Ad

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

   4:5         8:1        12:581      13:10       15:4        17:2      
  20:5        24:912      25:1        32:47       38:26       40:13     
  44:1        55:1        57:15       61:374      62:386      63:1903   
  64:1383     65:1653     66:1213     67:125      68:200      69:19     
  80:294      81:69      128:127     129:109     130:21      131:64     
 132:9       133:2       134:143     135:7       136:412     137:108    
 138:216     139:76      140:154     141:87      142:86      143:46     
 144:149     145:18      146:254     147:250     148:255     149:77     
 150:41      151:87      152:286     153:36      154:8       155:103    
 156:104     157:104     158:89      159:149     160:20      161:74     
 162:131     163:89      164:253     165:138     166:93      167:305    
 168:294     169:59      170:243     171:6       192:5418    193:2377   
 194:1985    195:848     196:439     198:3609    199:3084    200:2580   
 202:3512    203:4861    204:3282    205:2103    206:2365    207:2446   
 208:2557    209:2791    210:611     211:284     212:888     213:782    
 214:11      215:20      216:3041    217:501     218:51      219:7      


End of report



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