[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Feb 14 05:05:24 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

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 14 Feb, 2003

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

BGP routing table entries examined:                            121004
    Prefixes after maximum aggregation:                         77156
    Unique aggregates announced to Internet:                    58398
Total ASes present in the Internet Routing Table:               14617
Origin-only ASes present in the Internet Routing Table:         12687
Origin ASes announcing only one prefix:                          5724
Transit ASes present in the Internet Routing Table:              1930
Transit-only ASes present in the Internet Routing Table:           67
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:             13
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    22
Number of addresses announced to Internet:                 1194127693
    Equivalent to 71 /8s, 44 /16s and 241 /24s
    Percentage of available address space announced:             32.2
    Percentage of allocated address space announced:             58.1
    Percentage of available address space allocated:             55.5
Total number of prefixes smaller than registry allocations:     56285

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

Prefixes being announced by APNIC Region ASes:                  20422
    Total APNIC prefixes after maximum aggregation:             12035
Prefixes being announced from the APNIC address blocks:         18925
    Unique aggregates announced from the APNIC address blocks:  11584
APNIC Region origin ASes present in the Internet Routing Table:  1726
APNIC Region origin ASes announcing only one prefix:              517
APNIC Region transit ASes present in the Internet Routing Table:  294
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:            105928352
    Equivalent to 6 /8s, 80 /16s and 86 /24s
    Percentage of available APNIC address space announced:       56.2

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 220/6

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

Prefixes being announced by ARIN Region ASes:                   74448
    Total ARIN prefixes after maximum aggregation:              47522
Prefixes being announced from the ARIN address blocks:          52808
    Unique aggregates announced from the ARIN address blocks:   16484
ARIN Region origin ASes present in the Internet Routing Table:   8142
ARIN Region origin ASes announcing only one prefix:              2750
ARIN Region transit ASes present in the Internet Routing Table:   767
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             187000768
    Equivalent to 11 /8s, 37 /16s and 103 /24s
    Percentage of available ARIN address space announced:        69.7

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:                   20846
    Total RIPE prefixes after maximum aggregation:              15398
Prefixes being announced from the RIPE address blocks:          17471
    Unique aggregates announced from the RIPE address blocks:   11644
RIPE Region origin ASes present in the Internet Routing Table:   4357
RIPE Region origin ASes announcing only one prefix:              2374
RIPE Region transit ASes present in the Internet Routing Table:   785
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             123889088
    Equivalent to 7 /8s, 98 /16s and 101 /24s
    Percentage of available RIPE address space announced:        73.8

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
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:                  5276
    Total LACNIC prefixes after maximum aggregation:             2201
Prefixes being announced from the LACNIC address blocks:         4609
    Unique aggregates announced from the LACNIC address blocks:  2980
LACNIC Region origin ASes present in the Internet Routing Table:  329
LACNIC Region origin ASes announcing only one prefix:              83
LACNIC Region transit ASes present in the Internet Routing Table:  68
Average LACNIC Region AS path length visible:                     5.7
    Max LACNIC Region AS path length visible:                      10
Number of LACNIC addresses announced to Internet:            12020224
    Equivalent to 0 /8s, 183 /16s and 106 /24s
    Percentage of available LACNIC address space announced:      71.6

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     1118       1166         815   Telstra Pty Ltd
  703      412        368         322   UUNET
 2907      393       1993         370   SINET Japan
17557      339         24         130   Pakistan Telecom
 2764      329        340         296   connect.com.au pty ltd
 4134      306       2661         102   Data Communications Bureau
 7474      303        276         210   Optus Communications Pty Ltd
 4814      261         79          15   China Telecom (Group)
 3786      242        775         208   DACOM Corporation
 4755      233        117          73   Videsh Sanchar Nigam Ltd. Aut
17676      226       3509          24   XTAGE CORPORATION
 9583      215         33          13   Satyam Infoway Ltd.,
 4766      203       2071         150   Korea Internet Exchange for "
 9443      185         57          76   Primus Telecommunications
 9800      167        205          41   CHINA UNICOM
 4765      148          9          14   World Net & Services Co., Ltd
 9238      131          8          18   TATA ISP
 4716      129        737         123   TTnet
 9768      128        384          64   Korea Telecom
 4739      125         57         114   Commerical Internet eXchange 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1577       8932        1163   UUNET Technologies, Inc. 
 7018     1423       7110         965   AT&T 
 3908     1215       1605         482   Supernet, Inc. 
 1239      961       3150         675   Sprint 
    1      668       8093         433   GENUITY 
  852      607       1107         446   Telus Advanced Communications
 7843      571        401         213   Adelphia Corp. 
 7046      566        827         243   UUNET Technologies, Inc. 
  209      529       2108         333   Qwest 
 4323      529        472         168   Time Warner Communications, I
 4151      523        691          59   USDA 
  690      498         73         308   Merit Network 
 7066      491        204         254   Virginia Polytechnic Institut
 6197      476        555         113   BellSouth Network Solutions, 
18566      476        114           7   Covad Communications 
 3561      466       2322         329   Cable & Wireless USA 
  705      446        166         195   UUNET Technologies, Inc. 
 2386      437        470         228   AT&T Data Communications Serv
 6198      432        193         199   BellSouth Network Solutions, 
 4355      396        308         112   EarthLink, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      796       2282         660   UUNET - Commercial IP service
 3301      313       1141         301   TeliaNet Sweden
 3215      311        818         172   France Telecom Transpac
 3320      264       1996         227   Deutsche Telekom AG
  680      232       2054         229   DFN-IP service G-WiN
 1257      214        385         198   SWIPnet Swedish IP Network
 5515      208        783         172   Sonera Solution Autonomous Sy
  719      202        306         129   LANLINK autonomous system
  786      179       1874         179   The JANET IP Service
 5400      158         69          95   BT Ignite European Backbone
 8708      150         42         148   Romania Data Systems S.A.
20858      147         17           3   This AS will be used to conne
 3303      144        517         143   Swisscom Ltd
 8220      123        174         114   COLT Internet - International
12302      123         18          30   MobiFon S.A.
 2856      121       1299         111   BTnet UK Regional network
 3269      111        751          61   TELECOM ITALIA
 3233      108         11          12   RNC - Romanian Natioanal R&D 
 3246      105        358         102   Song Networks
 5511      101        177          80   France Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      285         98         104   ImpSat
 7303      232         36          49   Telecom Argentina Stet-France
 8151      209        332         115   UniNet S.A. de C.V. 
11172      161         82          33   Servicios Alestra S.A de C.V 
 6503      156        191         109   AVANTEL, S.A. 
16814      140          9          14   NSS, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
10620      107          7          31   TVCABLE BOGOTA 
11340      101          2          35   Red Universitaria Nacional 
 6147       84         62          21   Telefonica Del Peru 
 1916       73        306          44   Fundacao de Amparo a Pesquisa
 6535       71          4          22   Chilesat Servicios  Empresari
15311       71         27          36   Telefonica Empresas 
 4270       69         18          10   Red de Interconexion Universi
 8065       69          6          15   Empresas Publicas de Medellin
11992       69          7          30   Integrated Systems 
 7080       64          4           1   Electronica y Comunicaciones 
 7984       61         11          40   Global One Colombia 
11830       60          4          21   Instituto Costarricense de El
15034       60          5          31   TIBA SA 

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

  ASN   No of nets  Net Savings Description
 3908      1215         733      Supernet, Inc. 
18566       476         469      Covad Communications 
 4151       523         464      USDA 
 7018      1423         458      AT&T 
 6197       476         363      BellSouth Network Solutions, 
 4323       529         361      Time Warner Communications, I
 7843       571         358      Adelphia Corp. 
 7046       566         323      UUNET Technologies, Inc. 
 1221      1118         303      Telstra Pty Ltd
11492       304         303      Cable One 
 6347       369         290      SAVVIS Communications Corpora
 1239       961         286      Sprint 
 4355       396         284      EarthLink, Inc. 
22927       295         281      TELEFONICA DE ARGENTINA 
  705       446         251      UUNET Technologies, Inc. 
 4814       261         246      China Telecom (Group)
 7066       491         237      Virginia Polytechnic Institut
    1       668         235      GENUITY 
 6198       432         233      BellSouth Network Solutions, 
  376       339         225      Reseau Interordinateurs Scien

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

Bad AS  Designation  Network              Transit AS  Description
64520   PRIVATE       158.15.0.0/16          721       DLA Systems Automati
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
64521   PRIVATE       198.189.23.0/24       2151       California State Uni
64521   PRIVATE       198.189.24.0/24       2151       California State Uni
64524   PRIVATE       198.189.134.0/24      2151       California State Uni
64524   PRIVATE       198.189.135.0/24      2151       California State Uni
64524   PRIVATE       198.189.136.0/24      2151       California State Uni
64524   PRIVATE       198.189.137.0/24      2151       California State Uni
64524   PRIVATE       198.189.138.0/24      2151       California State Uni
64521   PRIVATE       198.189.158.0/24      2151       California State Uni
64521   PRIVATE       198.189.235.0/24      2151       California State Uni
64521   PRIVATE       198.189.236.0/24      2151       California State Uni
65000   PRIVATE       210.90.54.0/25        9768       Korea Telecom

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
192.31.242.0/24        771     NASA Ames Research Center 
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
192.136.86.0/24        719     LANLINK autonomous system
192.136.87.0/24        719     LANLINK autonomous system
192.136.88.0/24        719     LANLINK autonomous system
192.139.62.0/24       6539     GT Group Telecom Services Cor
192.153.136.0/21       568     DISO-UNRRA 
192.156.164.0/24     19548     Adelphia Business Solutions 
192.172.0.0/19         568     DISO-UNRRA 
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       /11:12      /12:44      
/13:93      /14:240     /15:446     /16:7336    /17:1577    /18:2864    
/19:8111    /20:8010    /21:5732    /22:8721    /23:10433   /24:66633   
/25:170     /26:170     /27:94      /28:83      /29:58      /30:102     
/31:2       /32:45      

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

  ASN   No of nets  Total ann.   Description
 3908      792          1215      Supernet, Inc. 
 7018      523          1423      AT&T 
  702      492           796      UUNET - Commercial IP service
18566      471           476      Covad Communications 
  690      447           498      Merit Network 
  701      424          1577      UUNET Technologies, Inc. 
 7066      390           491      Virginia Polytechnic Institut
 1239      355           961      Sprint 
 6197      352           476      BellSouth Network Solutions, 
 7843      341           571      Adelphia Corp. 
 6198      340           432      BellSouth Network Solutions, 
11492      303           304      Cable One 
22927      294           295      TELEFONICA DE ARGENTINA 
 6140      273           285      ImpSat
 7046      266           566      UUNET Technologies, Inc. 
20115      240           363      Charter Communications 
 2386      237           437      AT&T Data Communications Serv
 3215      237           311      France Telecom Transpac
 7303      231           232      Telecom Argentina Stet-France
  209      227           529      Qwest 

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

  12:643      13:1        15:4        17:2        20:9        24:795    
  25:1        32:82       34:1        38:41       40:19       44:2      
  55:1        57:15       61:476      62:496      63:1907     64:1383   
  65:1854     66:1407     67:214      68:276      69:47       80:317    
  81:87      128:143     129:178     130:40      131:73      132:11     
 133:2       134:144     135:4       136:194     137:116     138:103    
 139:70      140:130     141:109     142:93      143:44      144:103    
 145:17      146:262     147:84      148:266     149:74      150:42     
 151:96      152:252     153:44      154:3       155:105     156:42     
 157:41      158:122     159:138     160:33      161:54      162:134    
 163:89      164:264     165:140     166:81      167:306     168:392    
 169:57      170:298     171:8       192:5327    193:2421    194:2002   
 195:943     196:456     198:3604    199:3211    200:2839    202:3637   
 203:5071    204:3018    205:2051    206:2403    207:2402    208:2688   
 209:2767    210:729     211:318     212:954     213:720     214:21     
 215:22      216:3220    217:586     218:79      219:14      220:49     


End of report



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