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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 17 Jan, 2003

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

BGP routing table entries examined:                            119833
    Prefixes after maximum aggregation:                         76401
    Unique aggregates announced to Internet:                    57461
Total ASes present in the Internet Routing Table:               14423
Origin-only ASes present in the Internet Routing Table:         12534
Origin ASes announcing only one prefix:                          5658
Transit ASes present in the Internet Routing Table:              1889
Transit-only ASes present in the Internet Routing Table:           59
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:              9
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    30
Number of addresses announced to Internet:                 1190822873
    Equivalent to 70 /8s, 250 /16s and 131 /24s
    Percentage of available address space announced:             32.1
    Percentage of allocated address space announced:             58.9
    Percentage of available address space allocated:             54.6
Total number of prefixes smaller than registry allocations:     55857

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

Prefixes being announced by APNIC Region ASes:                  19936
    Total APNIC prefixes after maximum aggregation:             11853
Prefixes being announced from the APNIC address blocks:         18440
    Unique aggregates announced from the APNIC address blocks:  11342
APNIC Region origin ASes present in the Internet Routing Table:  1711
APNIC Region origin ASes announcing only one prefix:              526
APNIC Region transit ASes present in the Internet Routing Table:  290
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       13
Number of APNIC addresses announced to Internet:            104299168
    Equivalent to 6 /8s, 55 /16s and 122 /24s
    Percentage of available APNIC address space announced:       68.6

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:                   74144
    Total ARIN prefixes after maximum aggregation:              47100
Prefixes being announced from the ARIN address blocks:          51928
    Unique aggregates announced from the ARIN address blocks:   16044
ARIN Region origin ASes present in the Internet Routing Table:   8065
ARIN Region origin ASes announcing only one prefix:              2725
ARIN Region transit ASes present in the Internet Routing Table:   754
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             185649392
    Equivalent to 11 /8s, 16 /16s and 200 /24s
    Percentage of available ARIN address space announced:        69.2

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:                   20609
    Total RIPE prefixes after maximum aggregation:              15264
Prefixes being announced from the RIPE address blocks:          17188
    Unique aggregates announced from the RIPE address blocks:   11441
RIPE Region origin ASes present in the Internet Routing Table:   4267
RIPE Region origin ASes announcing only one prefix:              2326
RIPE Region transit ASes present in the Internet Routing Table:   769
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        14
Number of RIPE addresses announced to Internet:             122203200
    Equivalent to 7 /8s, 72 /16s and 172 /24s
    Percentage of available RIPE address space announced:        80.9

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, 28672 - 29695
RIPE Address Blocks    62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                  5137
    Total LACNIC prefixes after maximum aggregation:             2184
Prefixes being announced from the LACNIC address blocks:         4476
    Unique aggregates announced from the LACNIC address blocks:  2938
LACNIC Region origin ASes present in the Internet Routing Table:  324
LACNIC Region origin ASes announcing only one prefix:              81
LACNIC Region transit ASes present in the Internet Routing Table:  67
Average LACNIC Region AS path length visible:                     5.7
    Max LACNIC Region AS path length visible:                      16
Number of LACNIC addresses announced to Internet:            11857664
    Equivalent to 0 /8s, 180 /16s and 239 /24s
    Percentage of available LACNIC address space announced:      70.7

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     1132       1184         834   Telstra Pty Ltd
  703      399        364         315   UUNET
 2907      390       1975         366   SINET Japan
 2764      336        340         305   connect.com.au pty ltd
17557      321         23         126   Pakistan Telecom
 7474      313        281         204   Optus Communications Pty Ltd
 4134      296       2457          95   Data Communications Bureau
 4814      251         79          15   China Telecom (Group)
 3786      237        772         204   DACOM Corporation
 4755      233        133          72   Videsh Sanchar Nigam Ltd. Aut
17676      228       3556          27   XTAGE CORPORATION
 4766      200       2075         149   Korea Internet Exchange for "
 9583      190         33          12   Satyam Infoway Ltd.,
 9443      188         57          77   Primus Telecommunications
 9800      167        205          41   CHINA UNICOM
 4716      130        738         124   TTnet
 9768      129        384          64   Korea Telecom
 9238      124          7          16   TATA ISP
 4739      123         57         113   Commerical Internet eXchange 
 7713      123         46          14   PT TELEKOMUNIKASI INDONESIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1606       9014        1182   UUNET Technologies, Inc. 
 7018     1443       7091         974   AT&T 
 3908     1201       1636         507   Supernet, Inc. 
 1239      966       3160         678   Sprint 
    1      659       8076         432   GENUITY 
 7843      610        410         244   Adelphia Corp. 
  852      609       1140         446   Telus Advanced Communications
 7046      550        841         259   UUNET Technologies, Inc. 
 4323      533        488         169   Time Warner Communications, I
  690      521         76         326   Merit Network 
  209      519       2102         328   Qwest 
 7066      492        204         252   Virginia Polytechnic Institut
 6197      462        561         104   BellSouth Network Solutions, 
18566      430        112           5   Covad Communications 
  705      427        133         186   UUNET Technologies, Inc. 
 6198      424        185         198   BellSouth Network Solutions, 
 2386      410        465         227   AT&T Data Communications Serv
 4355      408        313         116   EarthLink, Inc. 
 3549      401        709         295   Global Crossing 
15290      394        215         176   AT&T Canada IES 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      807       2306         670   UUNET - Commercial IP service
 3301      337       1141         298   TeliaNet Sweden
 3215      314        803         174   France Telecom Transpac
 3320      254       1995         227   Deutsche Telekom AG
  680      237       2166         235   DFN-IP service G-WiN
 5515      214        783         175   Sonera Solution Autonomous Sy
 1257      207        400         196   SWIPnet Swedish IP Network
  786      176       1873         176   The JANET IP Service
  719      171        306         130   LANLINK autonomous system
 5400      160         70          97   BT Ignite European Backbone
 8708      156         42         146   Romania Data Systems S.A.
 3303      144        517         143   Swisscom Ltd
20858      142         17           3   This AS will be used to conne
 2856      131       1302         118   BTnet UK Regional network
12302      124         18          31   MobiFon S.A.
 8220      122        174         113   COLT Internet - International
 3246      118        378         115   Song Networks
 3269      113        754          63   TELECOM ITALIA
 5511      106        193          83   France Telecom
 3233      104         10           8   RNC - Romanian Natioanal R&D 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      319         98         105   ImpSat
 7303      228         36          52   Telecom Argentina Stet-France
 8151      207        317         113   UniNet S.A. de C.V. 
11172      164         83          33   Servicios Alestra S.A de C.V 
 6503      158        207         108   AVANTEL, S.A. 
16814      140          9          14   NSS, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
10620       98          6          32   TVCABLE BOGOTA 
11340       82          2          33   Red Universitaria Nacional 
 6147       78         58          20   Telefonica Del Peru 
 1916       74        306          44   Fundacao de Amparo a Pesquisa
15311       72         27          37   Telefonica Empresas 
 6535       70          4          21   Chilesat Servicios  Empresari
 4270       68         18          10   Red de Interconexion Universi
11992       68          7          32   Integrated Systems 
 8065       67          6          14   Empresas Publicas de Medellin
 7984       61         11          40   Global One Colombia 
15034       58          5          33   TIBA SA 
 4926       57          4          47   Telintar S.A. 
11830       57          4          18   Instituto Costarricense de El

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

  ASN   No of nets  Net Savings Description
 3908      1201         694      Supernet, Inc. 
 7018      1443         469      AT&T 
18566       430         425      Covad Communications 
 7843       610         366      Adelphia Corp. 
 4323       533         364      Time Warner Communications, I
 6197       462         358      BellSouth Network Solutions, 
 1580       313         300      ANOSCEUR 
 1221      1132         298      Telstra Pty Ltd
11492       297         296      Cable One 
 4355       408         292      EarthLink, Inc. 
 7046       550         291      UUNET Technologies, Inc. 
 1239       966         288      Sprint 
 6347       367         288      SAVVIS Communications Corpora
 4151       329         271      USDA 
22927       283         261      TELEFONICA DE ARGENTINA 
  705       427         241      UUNET Technologies, Inc. 
 7066       492         240      Virginia Polytechnic Institut
  376       345         240      Reseau Interordinateurs Scien
 4814       251         236      China Telecom (Group)
    1       659         227      GENUITY 

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

Bad AS  Designation  Network              Transit AS  Description
64516   PRIVATE       137.164.227.0/24      2150       California State Uni
64516   PRIVATE       137.164.228.0/22      2150       California State Uni
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
64514   PRIVATE       198.188.18.0/24       2151       California State Uni
64514   PRIVATE       198.188.28.0/24       2151       California State Uni
65535   PRIVATE       202.57.188.0/24       7654       Siam Global Access C
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
64514   PRIVATE       207.62.82.0/23        2151       California State Uni
64514   PRIVATE       207.62.84.0/22        2151       California State Uni

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 
158.255.3.0/24         702     UUNET - Commercial IP service
178.54.59.0/24        7018     AT&T 
188.1.0.0/16           680     DFN-IP service G-WiN
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
192.119.135.0/24       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
192.140.0.0/16        5511     France Telecom
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 
192.208.29.0/24       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       /11:12      /12:44      
/13:91      /14:240     /15:441     /16:7328    /17:1555    /18:2828    
/19:8032    /20:7833    /21:5619    /22:8566    /23:10267   /24:66240   
/25:139     /26:173     /27:93      /28:80      /29:69      /30:108     
/31:0       /32:47      

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

  ASN   No of nets  Total ann.   Description
 3908      768          1201      Supernet, Inc. 
 7018      512          1443      AT&T 
  702      494           807      UUNET - Commercial IP service
  690      470           521      Merit Network 
18566      425           430      Covad Communications 
  701      422          1606      UUNET Technologies, Inc. 
 7066      391           492      Virginia Polytechnic Institut
 7843      381           610      Adelphia Corp. 
 1239      355           966      Sprint 
 6197      339           462      BellSouth Network Solutions, 
 6198      338           424      BellSouth Network Solutions, 
 6140      307           319      ImpSat
 1580      299           313      ANOSCEUR 
11492      296           297      Cable One 
22927      282           283      TELEFONICA DE ARGENTINA 
 7046      244           550      UUNET Technologies, Inc. 
 3215      241           314      France Telecom Transpac
20115      231           350      Charter Communications 
 2386      227           410      AT&T Data Communications Serv
 4355      227           408      EarthLink, Inc. 

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

  12:633      13:1        15:6        17:3        20:7        24:780    
  25:1        32:43       38:37       40:18       44:1        55:1      
  57:16       61:427      62:462      63:1864     64:1361     65:1804   
  66:1370     67:202      68:225      69:43       80:351      81:100    
 128:126     129:184     130:23      131:70      132:9       133:4      
 134:155     135:6       136:489     137:111     138:208     139:84     
 140:185     141:103     142:97      143:44      144:148     145:16     
 146:256     147:246     148:271     149:79      150:42      151:94     
 152:258     153:37      154:7       155:103     156:49      157:63     
 158:120     159:139     160:24      161:57      162:132     163:83     
 164:279     165:136     166:79      167:303     168:385     169:57     
 170:289     171:8       178:1       192:5379    193:2396    194:1979   
 195:910     196:456     198:3581    199:3036    200:2783    202:3623   
 203:4901    204:3015    205:2105    206:2359    207:2405    208:2650   
 209:2694    210:685     211:319     212:893     213:752     214:12     
 215:23      216:3184    217:558     218:70      219:16      220:41     


End of report

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