[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Dec 13 05:05:15 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 13 Dec, 2002

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

BGP routing table entries examined:                            118450
    Prefixes after maximum aggregation:                         75688
    Unique aggregates announced to Internet:                    56710
Total ASes present in the Internet Routing Table:               14220
Origin-only ASes present in the Internet Routing Table:         12334
Origin ASes announcing only one prefix:                          5584
Transit ASes present in the Internet Routing Table:              1886
Transit-only ASes present in the Internet Routing Table:           63
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:              4
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    39
Number of addresses announced to Internet:                 1186235183
    Equivalent to 70 /8s, 180 /16s and 131 /24s
    Percentage of available address space announced:             32.0
    Percentage of allocated address space announced:             58.7
    Percentage of available address space allocated:             54.6
Total number of prefixes smaller than registry allocations:     54423

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

Prefixes being announced by APNIC Region ASes:                  19282
    Total APNIC prefixes after maximum aggregation:             11466
Prefixes being announced from the APNIC address blocks:         17847
    Unique aggregates announced from the APNIC address blocks:  11121
APNIC Region origin ASes present in the Internet Routing Table:  1659
APNIC Region origin ASes announcing only one prefix:              528
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:                       12
Number of APNIC addresses announced to Internet:            101284000
    Equivalent to 6 /8s, 9 /16s and 120 /24s
    Percentage of available APNIC address space announced:       66.6

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:                   73918
    Total ARIN prefixes after maximum aggregation:              46897
Prefixes being announced from the ARIN address blocks:          51453
    Unique aggregates announced from the ARIN address blocks:   15779
ARIN Region origin ASes present in the Internet Routing Table:   7974
ARIN Region origin ASes announcing only one prefix:              2692
ARIN Region transit ASes present in the Internet Routing Table:   753
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             184291824
    Equivalent to 10 /8s, 252 /16s and 17 /24s
    Percentage of available ARIN address space announced:        68.7

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:                   20226
    Total RIPE prefixes after maximum aggregation:              15202
Prefixes being announced from the RIPE address blocks:          16875
    Unique aggregates announced from the RIPE address blocks:   11362
RIPE Region origin ASes present in the Internet Routing Table:   4201
RIPE Region origin ASes announcing only one prefix:              2280
RIPE Region transit ASes present in the Internet Routing Table:   768
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             121368192
    Equivalent to 7 /8s, 59 /16s and 238 /24s
    Percentage of available RIPE address space announced:        80.4

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, 193/8, 194/7, 212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                  5022
    Total LACNIC prefixes after maximum aggregation:             2123
Prefixes being announced from the LACNIC address blocks:         4342
    Unique aggregates announced from the LACNIC address blocks:  2813
LACNIC Region origin ASes present in the Internet Routing Table:  324
LACNIC Region origin ASes announcing only one prefix:              84
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:                      13
Number of LACNIC addresses announced to Internet:            11600128
    Equivalent to 0 /8s, 177 /16s and 1 /24s
    Percentage of available LACNIC address space announced:      69.1

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     1153       1184         837   Telstra Pty Ltd
  703      393        363         310   UUNET
 2907      357       1768         335   SINET Japan
 2764      341        341         310   connect.com.au pty ltd
17557      314         23         123   Pakistan Telecom
 7474      306        280         204   Optus Communications Pty Ltd
 4134      292       2368          93   Data Communications Bureau
 4755      265        136          64   Videsh Sanchar Nigam Ltd. Aut
 4814      249         79          15   China Telecom (Group)
17676      232       3602          27   XTAGE CORPORATION
 4766      231       1807         154   Korea Internet Exchange for "
 9583      188         33          12   Satyam Infoway Ltd.,
 9443      185         57          73   Primus Telecommunications
 9800      140        192          38   CHINA UNICOM
 9768      135        386          64   Korea Telecom
 4716      129        723         123   TTnet
 7657      127         26          90   The Internet Group Limited
 4621      121         11          65   UNINET-TH
 4739      120         56         110   Commerical Internet eXchange 
 4713      112       1059         101   NTT Communications Corporatio

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3908     1803       1667         506   Supernet, Inc. 
  701     1697       9039        1227   UUNET Technologies, Inc. 
 7018     1390       7147         963   AT&T 
 1239      937       3144         669   Sprint 
    1      665       8090         438   GENUITY 
  852      624       1140         443   Telus Advanced Communications
 7843      597        402         262   Adelphia Corp. 
 7046      586        861         280   UUNET Technologies, Inc. 
 4323      525        455         166   Time Warner Communications, I
  209      524       2049         338   Qwest 
  690      513         75         319   Merit Network 
 7066      490        204         257   Virginia Polytechnic Institut
 6197      456        589          92   BellSouth Network Solutions, 
  705      436        134         196   UUNET Technologies, Inc. 
18566      419         96           5   Covad Communications 
 6198      418        181         197   BellSouth Network Solutions, 
 3561      412       2246         355   Cable & Wireless USA 
 4355      405        313         118   EarthLink, Inc. 
 3549      403        741         295   Global Crossing 
15290      391        215         175   AT&T Canada IES 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      809       2293         672   UUNET - Commercial IP service
 3301      344       1144         302   TeliaNet Sweden
 3215      308        804         170   France Telecom Transpac
 3320      251       1962         224   Deutsche Telekom AG
  680      237       2150         234   DFN-IP service G-WiN
 1257      215        417         204   SWIPnet Swedish IP Network
 5515      210        783         175   Sonera Solution Autonomous Sy
  719      191        306         129   LANLINK autonomous system
  786      176       1873         176   The JANET IP Service
 5400      162         70          98   BT Ignite European Backbone
 8708      152         42         145   Romania Data Systems S.A.
 3303      148        502         146   Swisscom Ltd
20858      146         17           4   This AS will be used to conne
 2856      136       1301         124   BTnet UK Regional network
12302      124         18          31   MobiFon S.A.
 8220      123        174         112   COLT Internet - International
 3246      119        379         116   Song Networks
 3269      110        752          62   TELECOM ITALIA
 5511      104        193          83   France Telecom
 3233      102          6          54   RNC - Romanian Natioanal R&D 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      315        107          68   ImpSat USA, Inc. 
 8151      205        316         111   UniNet S.A. de C.V. 
 7303      182         28          46   Telecom Argentina Stet-France
11172      171         87          34   Servicios Alestra S.A de C.V 
 6503      157        207         109   AVANTEL, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
16814      107          7          12   NSS, S.A. 
10620       98          6          32   TVCABLE BOGOTA 
11340       91          2          36   Red Universitaria Nacional 
 6147       77         58          24   Telefonica Del Peru 
 1916       73        306          43   Fundacao de Amparo a Pesquisa
15311       73         27          37   Telefonica Empresas 
 6535       72          5          16   Chilesat Servicios  Empresari
 4270       69         18          10   Red de Interconexion Universi
 8065       67          6          14   Empresas Publicas de Medellin
11992       67          7          30   Integrated Systems 
 7984       65         12          41   Global One Colombia 
 4926       60          4          50   Telintar S.A. 
 7927       57          5          40   Global One Venezuela 
15034       57          5          32   TIBA SA 

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

  ASN   No of nets  Net Savings Description
  701      1697         470      UUNET Technologies, Inc. 
 7018      1390         427      AT&T 
18566       419         414      Covad Communications 
 6197       456         364      BellSouth Network Solutions, 
 4323       525         359      Time Warner Communications, I
 7843       597         335      Adelphia Corp. 
 1221      1153         316      Telstra Pty Ltd
 7046       586         306      UUNET Technologies, Inc. 
 1580       317         302      ANOSCEUR 
 4355       405         287      EarthLink, Inc. 
 6347       353         274      SAVVIS Communications Corpora
 4151       327         269      USDA 
 1239       937         268      Sprint 
22927       289         267      TELEFONICA DE ARGENTINA 
 6140       315         247      ImpSat USA, Inc. 
11492       275         245      Cable One 
  705       436         240      UUNET Technologies, Inc. 
  376       342         239      Reseau Interordinateurs Scien
 4814       249         234      China Telecom (Group)
 7066       490         233      Virginia Polytechnic Institut

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
 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 
160.213.122.0/23     25440     Nestle European Data Center
160.213.248.0/21     25440     Nestle European Data Center
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
192.68.128.0/22       1239     Sprint 
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      
/13:91      /14:238     /15:439     /16:7314    /17:1544    /18:2788    
/19:7971    /20:7691    /21:5528    /22:8325    /23:9941    /24:65583   
/25:142     /26:176     /27:95      /28:96      /29:70      /30:243     
/31:19      /32:71      

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

  ASN   No of nets  Total ann.   Description
 3908      964          1803      Supernet, Inc. 
  702      496           809      UUNET - Commercial IP service
  701      479          1697      UUNET Technologies, Inc. 
  690      462           513      Merit Network 
 7018      457          1390      AT&T 
18566      412           419      Covad Communications 
 7066      387           490      Virginia Polytechnic Institut
 7843      374           597      Adelphia Corp. 
 6198      334           418      BellSouth Network Solutions, 
 6197      332           456      BellSouth Network Solutions, 
 1239      327           937      Sprint 
 1580      302           317      ANOSCEUR 
 6140      302           315      ImpSat USA, Inc. 
22927      288           289      TELEFONICA DE ARGENTINA 
 7046      278           586      UUNET Technologies, Inc. 
11492      275           275      Cable One 
 3215      234           308      France Telecom Transpac
11537      227           233      University Corporation for Ad
 4355      224           405      EarthLink, Inc. 
  209      213           524      Qwest 

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

   8:1        12:606      13:10       15:6        17:3        20:5      
  24:799      25:1        32:44       38:30       40:16       44:1      
  55:1        57:15       61:409      62:403      63:1924     64:1316   
  65:1697     66:1243     67:188      68:173      69:45       80:326    
  81:78      128:109     129:172     130:21      131:68      132:9      
 133:2       134:150     135:6       136:494     137:110     138:213    
 139:65      140:154     141:99      142:92      143:47      144:150    
 145:18      146:253     147:245     148:275     149:76      150:43     
 151:89      152:290     153:36      154:7       155:102     156:44     
 157:58      158:119     159:162     160:21      161:71      162:134    
 163:89      164:253     165:129     166:94      167:302     168:384    
 169:58      170:276     171:8       192:5422    193:2379    194:2017   
 195:880     196:453     198:3616    199:3070    200:2671    202:3547   
 203:4874    204:3097    205:2213    206:2341    207:2522    208:2578   
 209:2697    210:609     211:288     212:879     213:761     214:12     
 215:21      216:3083    217:533     218:65      219:14      220:4      


End of report



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