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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 15 Nov, 2002

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

BGP routing table entries examined:                            117841
    Prefixes after maximum aggregation:                         75221
    Unique aggregates announced to Internet:                    56261
Total ASes present in the Internet Routing Table:               14084
Origin-only ASes present in the Internet Routing Table:         12200
Origin ASes announcing only one prefix:                          5503
Transit ASes present in the Internet Routing Table:              1884
Transit-only ASes present in the Internet Routing Table:           64
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:              2
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    36
Number of addresses announced to Internet:                 1182820221
    Equivalent to 70 /8s, 128 /16s and 103 /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:     49875

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

Prefixes being announced by APNIC Region ASes:                  19177
    Total APNIC prefixes after maximum aggregation:             11458
Prefixes being announced from the APNIC address blocks:         17691
    Unique aggregates announced from the APNIC address blocks:  11192
APNIC Region origin ASes present in the Internet Routing Table:  1644
APNIC Region origin ASes announcing only one prefix:              523
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:            100095936
    Equivalent to 5 /8s, 247 /16s and 87 /24s
    Percentage of available APNIC address space announced:       65.8

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:                   73738
    Total ARIN prefixes after maximum aggregation:              46678
Prefixes being announced from the ARIN address blocks:          51463
    Unique aggregates announced from the ARIN address blocks:   15658
ARIN Region origin ASes present in the Internet Routing Table:   7911
ARIN Region origin ASes announcing only one prefix:              2650
ARIN Region transit ASes present in the Internet Routing Table:   758
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        23
Number of ARIN addresses announced to Internet:             182747360
    Equivalent to 10 /8s, 228 /16s and 128 /24s
    Percentage of available ARIN address space announced:        68.1

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
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:                   20027
    Total RIPE prefixes after maximum aggregation:              14972
Prefixes being announced from the RIPE address blocks:          16706
    Unique aggregates announced from the RIPE address blocks:   11056
RIPE Region origin ASes present in the Internet Routing Table:   4146
RIPE Region origin ASes announcing only one prefix:              2248
RIPE Region transit ASes present in the Internet Routing Table:   765
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        14
Number of RIPE addresses announced to Internet:             119554752
    Equivalent to 7 /8s, 32 /16s and 66 /24s
    Percentage of available RIPE address space announced:        79.2

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
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:                  4899
    Total LACNIC prefixes after maximum aggregation:             2113
Prefixes being announced from the LACNIC address blocks:         4229
    Unique aggregates announced from the LACNIC address blocks:  2724
LACNIC Region origin ASes present in the Internet Routing Table:  319
LACNIC Region origin ASes announcing only one prefix:              82
LACNIC Region transit ASes present in the Internet Routing Table:  66
Average LACNIC Region AS path length visible:                     5.9
    Max LACNIC Region AS path length visible:                      17
Number of LACNIC addresses announced to Internet:            11737600
    Equivalent to 0 /8s, 179 /16s and 26 /24s
    Percentage of available LACNIC address space announced:      70.0

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     1183       1185         859   Telstra Pty Ltd
  703      393        365         309   UUNET
 2907      351       1752         330   SINET Japan
 2764      335        356         305   connect.com.au pty ltd
17557      308         22         118   Pakistan Telecom
 7474      303        279         202   Optus Communications Pty Ltd
 4134      297       2287          98   Data Communications Bureau
 4755      241        131          65   Videsh Sanchar Nigam Ltd. Aut
 4766      236       1807         152   Korea Internet Exchange for "
 4814      234         79          15   China Telecom (Group)
17676      227       3554          29   XTAGE CORPORATION
 9443      184         57          71   Primus Telecommunications
 9583      171         33          10   Satyam Infoway Ltd.,
 4515      142        102          76   Star Internet Services Ltd.
 9768      134        385          73   Korea Telecom
 4716      130        724         124   TTnet
 9800      125        191          18   CHINA UNICOM
 7657      124         24          90   The Internet Group Limited
 4621      121         11          67   UNINET-TH
 4739      119         56         110   Commerical Internet eXchange 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1735       9055        1245   UUNET Technologies, Inc. 
 7018     1358       7153         941   AT&T 
 3908     1096       1652         509   Supernet, Inc. 
 1239      902       3171         658   Sprint 
 7843      745        375         279   Adelphia Corp. 
  852      709       1146         468   Telus Advanced Communications
    1      659       8090         438   GENUITY 
 7046      591        858         288   UUNET Technologies, Inc. 
  209      578       2047         330   Qwest 
19029      565        127          28   New Edge Networks 
 4323      523        455         166   Time Warner Communications, I
  690      506         74         317   Merit Network 
 7066      488        204         256   Virginia Polytechnic Institut
 6197      441        235         201   BellSouth Network Solutions, 
  705      440        134         200   UUNET Technologies, Inc. 
 3561      411       2265         355   Cable & Wireless USA 
 3549      408        744         294   Global Crossing 
 6198      405        176         198   BellSouth Network Solutions, 
 4355      402        313         118   EarthLink, Inc. 
 2548      401       1020         243   Business Internet, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      822       2334         688   UUNET - Commercial IP service
 3301      380       1163         335   TeliaNet Sweden
 3215      311        789         172   France Telecom Transpac
 3320      244       1964         220   Deutsche Telekom AG
  680      237       2150         234   DFN-IP service G-WiN
 5515      210        783         175   Sonera Solution Autonomous Sy
 1257      208        415         202   SWIPnet Swedish IP Network
 5400      194         86         112   BT Ignite European Backbone
  719      191        306         130   LANLINK autonomous system
  786      176       1873         176   The JANET IP Service
 2856      172       1304         134   BTnet UK Regional network
 8708      163         41         149   Romania Data Systems S.A.
 3303      143        517         142   Swisscom Ltd
20858      138         17           4   This AS will be used to conne
12302      123         18          30   MobiFon S.A.
 3246      119        375         116   Song Networks
 8220      115        169         107   COLT Internet - International
 3269      111        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      268        114          58   ImpSat USA, Inc. 
 8151      210        331         111   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      154        191         108   AVANTEL, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
16814      106          7          12   NSS, S.A. 
10620       96          6          32   TVCABLE BOGOTA 
11992       81          8          30   Integrated Systems 
11340       78          2          29   Red Universitaria Nacional 
15311       75         27          37   Telefonica Empresas 
 1916       73        409          40   Fundacao de Amparo a Pesquisa
 6535       73          5          16   Chilesat Servicios  Empresari
 4270       71         18          10   Red de Interconexion Universi
 6147       67         57          23   Telefonica Del Peru 
 4926       63          4          51   Telintar S.A. 
 7984       62         11          39   Global One Colombia 
 8065       60          6          15   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
 3908      1096         587      Supernet, Inc. 
19029       565         537      New Edge Networks 
 7843       745         466      Adelphia Corp. 
 7018      1358         417      AT&T 
 4323       523         357      Time Warner Communications, I
18566       354         348      Covad Communications 
 1221      1183         324      Telstra Pty Ltd
 1580       322         309      ANOSCEUR 
 7046       591         303      UUNET Technologies, Inc. 
 4151       343         287      USDA 
 4355       402         284      EarthLink, Inc. 
 6347       359         284      SAVVIS Communications Corpora
22927       284         264      TELEFONICA DE ARGENTINA 
  209       578         248      Qwest 
 1239       902         244      Sprint 
  852       709         241      Telus Advanced Communications
 6197       441         240      BellSouth Network Solutions, 
  705       440         240      UUNET Technologies, Inc. 
  376       338         234      Reseau Interordinateurs Scien
 7066       488         232      Virginia Polytechnic Institut

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
 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 
156.108.0.0/16       14041     Colorado State University / A
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       /9:3       /10:8       /11:11      /12:46      
/13:90      /14:236     /15:433     /16:7313    /17:1534    /18:2747    
/19:7917    /20:7545    /21:5363    /22:8273    /23:9972    /24:65384   
/25:167     /26:194     /27:110     /28:103     /29:69      /30:224     
/31:19      /32:63      

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

  ASN   No of nets  Total ann.   Description
 3908      645          1096      Supernet, Inc. 
 7843      553           745      Adelphia Corp. 
19029      531           565      New Edge Networks 
  702      497           822      UUNET - Commercial IP service
  701      496          1735      UUNET Technologies, Inc. 
  690      454           506      Merit Network 
 7018      437          1358      AT&T 
 7066      387           488      Virginia Polytechnic Institut
18566      349           354      Covad Communications 
 6197      332           441      BellSouth Network Solutions, 
 6198      321           405      BellSouth Network Solutions, 
 1580      308           322      ANOSCEUR 
 1239      292           902      Sprint 
 7046      283           591      UUNET Technologies, Inc. 
  209      264           578      Qwest 
 3215      236           311      France Telecom Transpac
22927      234           284      TELEFONICA DE ARGENTINA 
11492      232           237      Cable One 
 3301      225           380      TeliaNet Sweden
 4355      223           402      EarthLink, Inc. 

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

   4:5         8:1        12:592      13:10       15:4        17:3      
  20:5        24:872      25:1        32:57       38:27       40:12     
  44:1        55:1        57:16       61:382      62:384      63:1892   
  64:1386     65:1707     66:1205     67:135      68:207      69:20     
  80:309      81:77      128:113     129:111     130:19      131:66     
 132:9       133:2       134:142     135:7       136:494     137:109    
 138:215     139:76      140:154     141:92      142:87      143:44     
 144:149     145:18      146:255     147:254     148:254     149:78     
 150:43      151:87      152:282     153:36      154:8       155:104    
 156:105     157:75      158:98      159:150     160:22      161:74     
 162:131     163:87      164:255     165:135     166:93      167:296    
 168:381     169:56      170:243     171:6       192:5421    193:2383   
 194:1994    195:863     196:454     198:3602    199:3061    200:2585   
 202:3489    203:4834    204:3279    205:2113    206:2366    207:2450   
 208:2585    209:2839    210:628     211:282     212:882     213:776    
 214:12      215:21      216:3056    217:511     218:65      219:7      


End of report

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