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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 07 Feb, 2003

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

BGP routing table entries examined:                            120515
    Prefixes after maximum aggregation:                         76991
    Unique aggregates announced to Internet:                    58099
Total ASes present in the Internet Routing Table:               14573
Origin-only ASes present in the Internet Routing Table:         12648
Origin ASes announcing only one prefix:                          5720
Transit ASes present in the Internet Routing Table:              1925
Transit-only ASes present in the Internet Routing Table:           66
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:             12
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:                 1192008781
    Equivalent to 71 /8s, 12 /16s and 156 /24s
    Percentage of available address space announced:             32.2
    Percentage of allocated address space announced:             58.4
    Percentage of available address space allocated:             55.0
Total number of prefixes smaller than registry allocations:     56029

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

Prefixes being announced by APNIC Region ASes:                  20318
    Total APNIC prefixes after maximum aggregation:             11996
Prefixes being announced from the APNIC address blocks:         18835
    Unique aggregates announced from the APNIC address blocks:  11533
APNIC Region origin ASes present in the Internet Routing Table:  1729
APNIC Region origin ASes announcing only one prefix:              525
APNIC Region transit ASes present in the Internet Routing Table:  295
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:            105059232
    Equivalent to 6 /8s, 67 /16s and 19 /24s
    Percentage of available APNIC address space announced:       69.1

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:                   74212
    Total ARIN prefixes after maximum aggregation:              47457
Prefixes being announced from the ARIN address blocks:          52586
    Unique aggregates announced from the ARIN address blocks:   16200
ARIN Region origin ASes present in the Internet Routing Table:   8120
ARIN Region origin ASes announcing only one prefix:              2741
ARIN Region transit ASes present in the Internet Routing Table:   766
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             186593984
    Equivalent to 11 /8s, 31 /16s and 50 /24s
    Percentage of available ARIN address space announced:        69.5

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:                   20729
    Total RIPE prefixes after maximum aggregation:              15341
Prefixes being announced from the RIPE address blocks:          17370
    Unique aggregates announced from the RIPE address blocks:   11605
RIPE Region origin ASes present in the Internet Routing Table:   4331
RIPE Region origin ASes announcing only one prefix:              2369
RIPE Region transit ASes present in the Internet Routing Table:   784
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             123149248
    Equivalent to 7 /8s, 87 /16s and 27 /24s
    Percentage of available RIPE address space announced:        73.4

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:                  5246
    Total LACNIC prefixes after maximum aggregation:             2197
Prefixes being announced from the LACNIC address blocks:         4596
    Unique aggregates announced from the LACNIC address blocks:  2990
LACNIC Region origin ASes present in the Internet Routing Table:  329
LACNIC Region origin ASes announcing only one prefix:              85
LACNIC Region transit ASes present in the Internet Routing Table:  68
Average LACNIC Region AS path length visible:                     5.8
    Max LACNIC Region AS path length visible:                      10
Number of LACNIC addresses announced to Internet:            11979776
    Equivalent to 0 /8s, 182 /16s and 204 /24s
    Percentage of available LACNIC address space announced:      71.4

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     1126       1183         822   Telstra Pty Ltd
  703      409        368         320   UUNET
 2907      388       1975         367   SINET Japan
17557      336         24         133   Pakistan Telecom
 2764      331        340         300   connect.com.au pty ltd
 7474      302        276         210   Optus Communications Pty Ltd
 4134      301       2525         100   Data Communications Bureau
 4814      261         79          15   China Telecom (Group)
 4755      249        134          76   Videsh Sanchar Nigam Ltd. Aut
 3786      241        775         207   DACOM Corporation
17676      223       3461          25   XTAGE CORPORATION
 9583      213         33          13   Satyam Infoway Ltd.,
 4766      199       2071         148   Korea Internet Exchange for "
 9443      185         57          76   Primus Telecommunications
 9800      167        205          41   CHINA UNICOM
 4765      148          9          13   World Net & Services Co., Ltd
 9238      131          8          18   TATA ISP
 9768      130        384          64   Korea Telecom
 4716      129        737         123   TTnet
 4739      124         57         113   Commerical Internet eXchange 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1607       8936        1183   UUNET Technologies, Inc. 
 7018     1433       7108         972   AT&T 
 3908     1219       1602         492   Supernet, Inc. 
 1239      965       3142         676   Sprint 
  852      684       1107         445   Telus Advanced Communications
    1      669       8092         434   GENUITY 
 7843      569        393         229   Adelphia Corp. 
 7046      563        818         252   UUNET Technologies, Inc. 
  209      531       2105         338   Qwest 
 4323      529        472         168   Time Warner Communications, I
  690      498         73         308   Merit Network 
 7066      492        204         253   Virginia Polytechnic Institut
 6197      472        555         110   BellSouth Network Solutions, 
18566      458        114           7   Covad Communications 
  705      438        150         189   UUNET Technologies, Inc. 
 2386      437        469         236   AT&T Data Communications Serv
 3561      435       2227         371   Cable & Wireless USA 
 6198      430        191         197   BellSouth Network Solutions, 
 4355      397        309         114   EarthLink, Inc. 
 3549      392        708         289   Global Crossing 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      799       2284         663   UUNET - Commercial IP service
 3215      312        818         172   France Telecom Transpac
 3301      312       1141         300   TeliaNet Sweden
 3320      261       1995         224   Deutsche Telekom AG
  680      240       2166         237   DFN-IP service G-WiN
 1257      212        384         197   SWIPnet Swedish IP Network
 5515      208        783         172   Sonera Solution Autonomous Sy
  719      204        306         130   LANLINK autonomous system
  786      179       1874         179   The JANET IP Service
 5400      158         69          95   BT Ignite European Backbone
 8708      156         42         147   Romania Data Systems S.A.
20858      147         17           3   This AS will be used to conne
 3303      144        517         143   Swisscom Ltd
12302      124         18          31   MobiFon S.A.
 8220      123        174         114   COLT Internet - International
 2856      119       1299         109   BTnet UK Regional network
 3246      118        378         115   Song Networks
 3269      111        751          61   TELECOM ITALIA
 3233      104         10           8   RNC - Romanian Natioanal R&D 
 5511      101        177          80   France Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      284         98         103   ImpSat
 7303      232         36          54   Telecom Argentina Stet-France
 8151      209        332         115   UniNet S.A. de C.V. 
11172      157         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. 
11340      111          3          39   Red Universitaria Nacional 
10620      106          7          32   TVCABLE BOGOTA 
 6147       79         62          21   Telefonica Del Peru 
 1916       74        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       60         11          39   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      1219         727      Supernet, Inc. 
 7018      1433         461      AT&T 
18566       458         451      Covad Communications 
 6197       472         362      BellSouth Network Solutions, 
 4323       529         361      Time Warner Communications, I
 7843       569         340      Adelphia Corp. 
 7046       563         311      UUNET Technologies, Inc. 
11492       307         306      Cable One 
 1221      1126         304      Telstra Pty Ltd
 1239       965         289      Sprint 
 6347       368         289      SAVVIS Communications Corpora
 4151       345         287      USDA 
 4355       397         283      EarthLink, Inc. 
22927       295         281      TELEFONICA DE ARGENTINA 
  705       438         249      UUNET Technologies, Inc. 
 4814       261         246      China Telecom (Group)
  376       352         241      Reseau Interordinateurs Scien
  852       684         239      Telus Advanced Communications
 7066       492         239      Virginia Polytechnic Institut
    1       669         235      GENUITY 

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
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
 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 
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      
/13:92      /14:241     /15:439     /16:7322    /17:1568    /18:2867    
/19:8061    /20:7954    /21:5715    /22:8654    /23:10406   /24:66379   
/25:172     /26:177     /27:94      /28:82      /29:58      /30:100     
/31:2       /32:48      

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

  ASN   No of nets  Total ann.   Description
 3908      796          1219      Supernet, Inc. 
 7018      515          1433      AT&T 
  702      494           799      UUNET - Commercial IP service
18566      453           458      Covad Communications 
  690      447           498      Merit Network 
  701      427          1607      UUNET Technologies, Inc. 
 7066      391           492      Virginia Polytechnic Institut
 1239      357           965      Sprint 
 6197      351           472      BellSouth Network Solutions, 
 7843      345           569      Adelphia Corp. 
 6198      341           430      BellSouth Network Solutions, 
11492      306           307      Cable One 
22927      294           295      TELEFONICA DE ARGENTINA 
 6140      272           284      ImpSat
 7046      265           563      UUNET Technologies, Inc. 
 2386      239           437      AT&T Data Communications Serv
 3215      238           312      France Telecom Transpac
20115      236           357      Charter Communications 
 7303      231           232      Telecom Argentina Stet-France
 4355      224           397      EarthLink, Inc. 

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

  12:638      13:1        15:6        17:2        20:9        24:799    
  25:1        32:82       34:1        38:40       40:19       44:1      
  55:1        57:15       61:473      62:495      63:1898     64:1395   
  65:1850     66:1388     67:211      68:255      69:42       80:314    
  81:86      128:141     129:185     130:38      131:73      132:11     
 133:2       134:143     135:4       136:194     137:114     138:103    
 139:70      140:130     141:104     142:92      143:45      144:63     
 145:17      146:259     147:85      148:261     149:75      150:41     
 151:96      152:254     153:44      154:3       155:104     156:39     
 157:44      158:123     159:137     160:32      161:50      162:135    
 163:80      164:268     165:141     166:86      167:305     168:392    
 169:57      170:294     171:8       192:5353    193:2418    194:2004   
 195:932     196:453     198:3605    199:3054    200:2846    202:3627   
 203:5062    204:3023    205:2097    206:2389    207:2412    208:2705   
 209:2795    210:711     211:321     212:941     213:712     214:22     
 215:21      216:3212    217:561     218:76      219:18      220:45     


End of report

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