[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Dec 6 05:05:14 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 06 Dec, 2002

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

BGP routing table entries examined:                            118420
    Prefixes after maximum aggregation:                         75557
    Unique aggregates announced to Internet:                    55942
Total ASes present in the Internet Routing Table:               14167
Origin-only ASes present in the Internet Routing Table:         12286
Origin ASes announcing only one prefix:                          5555
Transit ASes present in the Internet Routing Table:              1881
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:              4
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    38
Number of addresses announced to Internet:                 1188439741
    Equivalent to 70 /8s, 214 /16s and 38 /24s
    Percentage of available address space announced:             32.1
    Percentage of allocated address space announced:             58.8
    Percentage of available address space allocated:             54.6
Total number of prefixes smaller than registry allocations:     54255

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

Prefixes being announced by APNIC Region ASes:                  19301
    Total APNIC prefixes after maximum aggregation:             11478
Prefixes being announced from the APNIC address blocks:         17851
    Unique aggregates announced from the APNIC address blocks:  11159
APNIC Region origin ASes present in the Internet Routing Table:  1654
APNIC Region origin ASes announcing only one prefix:              525
APNIC Region transit ASes present in the Internet Routing Table:  291
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       12
Number of APNIC addresses announced to Internet:            101152688
    Equivalent to 6 /8s, 7 /16s and 119 /24s
    Percentage of available APNIC address space announced:       66.5

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:                   73965
    Total ARIN prefixes after maximum aggregation:              46872
Prefixes being announced from the ARIN address blocks:          51519
    Unique aggregates announced from the ARIN address blocks:   15768
ARIN Region origin ASes present in the Internet Routing Table:   7956
ARIN Region origin ASes announcing only one prefix:              2687
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:             183932912
    Equivalent to 10 /8s, 246 /16s and 151 /24s
    Percentage of available ARIN address space announced:        68.5

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:                   20221
    Total RIPE prefixes after maximum aggregation:              15098
Prefixes being announced from the RIPE address blocks:          16856
    Unique aggregates announced from the RIPE address blocks:   10622
RIPE Region origin ASes present in the Internet Routing Table:   4179
RIPE Region origin ASes announcing only one prefix:              2263
RIPE Region transit ASes present in the Internet Routing Table:   756
Average RIPE Region AS path length visible:                       5.7
    Max RIPE Region AS path length visible:                        14
Number of RIPE addresses announced to Internet:             123485440
    Equivalent to 7 /8s, 92 /16s and 61 /24s
    Percentage of available RIPE address space announced:        81.8

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
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:                  4931
    Total LACNIC prefixes after maximum aggregation:             2109
Prefixes being announced from the LACNIC address blocks:         4304
    Unique aggregates announced from the LACNIC address blocks:  2779
LACNIC Region origin ASes present in the Internet Routing Table:  320
LACNIC Region origin ASes announcing only one prefix:              80
LACNIC Region transit ASes present in the Internet Routing Table:  70
Average LACNIC Region AS path length visible:                     5.8
    Max LACNIC Region AS path length visible:                      13
Number of LACNIC addresses announced to Internet:            11751424
    Equivalent to 0 /8s, 179 /16s and 80 /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     1157       1184         839   Telstra Pty Ltd
  703      394        364         310   UUNET
 2907      357       1768         335   SINET Japan
 2764      342        341         311   connect.com.au pty ltd
17557      314         23         123   Pakistan Telecom
 7474      306        280         205   Optus Communications Pty Ltd
 4134      299       2377         100   Data Communications Bureau
 4755      277        136          72   Videsh Sanchar Nigam Ltd. Aut
 4814      248         79          15   China Telecom (Group)
17676      232       3602          27   XTAGE CORPORATION
 4766      228       1807         151   Korea Internet Exchange for "
 9583      186         33          12   Satyam Infoway Ltd.,
 9443      184         57          73   Primus Telecommunications
 9768      135        386          64   Korea Telecom
 9800      131        191          31   CHINA UNICOM
 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 
 3786      111        681          92   DACOM Corporation

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1742       9021        1243   UUNET Technologies, Inc. 
 3908     1720       1651         505   Supernet, Inc. 
 7018     1388       7116         981   AT&T 
 1239      926       3173         661   Sprint 
    1      664       8086         434   GENUITY 
  852      651       1145         462   Telus Advanced Communications
 7843      645        395         283   Adelphia Corp. 
 7046      584        860         283   UUNET Technologies, Inc. 
  209      523       2048         337   Qwest 
 4323      523        455         166   Time Warner Communications, I
  690      508         74         321   Merit Network 
 7066      491        204         258   Virginia Polytechnic Institut
 6197      444        262         192   BellSouth Network Solutions, 
  705      435        134         196   UUNET Technologies, Inc. 
 6198      415        178         198   BellSouth Network Solutions, 
 3561      409       2230         350   Cable & Wireless USA 
 4355      404        313         118   EarthLink, Inc. 
 3549      402        741         294   Global Crossing 
18566      395         96           5   Covad Communications 
15290      388        213         172   AT&T Canada IES 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      811       2327         677   UUNET - Commercial IP service
 3301      379       1163         334   TeliaNet Sweden
 3215      309        804         169   France Telecom Transpac
 3320      246       1962         223   Deutsche Telekom AG
  680      237       2150         234   DFN-IP service G-WiN
 1257      213        416         203   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         69          98   BT Ignite European Backbone
 8708      150         42         144   Romania Data Systems S.A.
20858      146         17           4   This AS will be used to conne
 3303      145        517         144   Swisscom Ltd
 2856      143       1302         131   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      111        752          63   TELECOM ITALIA
 3233      103         10          15   RNC - Romanian Natioanal R&D 
 5511      103        193          83   France Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      279        106          74   ImpSat USA, Inc. 
 8151      204        331         110   UniNet S.A. de C.V. 
 7303      182         28          46   Telecom Argentina Stet-France
11172      166         86          33   Servicios Alestra S.A de C.V 
 6503      156        191         108   AVANTEL, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
16814      106          7          12   NSS, S.A. 
10620       98          6          32   TVCABLE BOGOTA 
 6147       81         59          21   Telefonica Del Peru 
11340       77          2          28   Red Universitaria Nacional 
 1916       74        425          41   Fundacao de Amparo a Pesquisa
15311       73         27          37   Telefonica Empresas 
 6535       71          4          19   Chilesat Servicios  Empresari
 4270       67         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       63          4          51   Telintar S.A. 
15034       58          5          32   TIBA SA 
 7927       56          5          39   Global One Venezuela 

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

  ASN   No of nets  Net Savings Description
 3908      1720        1215      Supernet, Inc. 
 7018      1388         407      AT&T 
18566       395         390      Covad Communications 
 7843       645         362      Adelphia Corp. 
 4323       523         357      Time Warner Communications, I
 1221      1157         318      Telstra Pty Ltd
 1580       317         303      ANOSCEUR 
 7046       584         301      UUNET Technologies, Inc. 
 4151       352         294      USDA 
 4355       404         286      EarthLink, Inc. 
 6347       352         275      SAVVIS Communications Corpora
11492       273         272      Cable One 
22927       289         267      TELEFONICA DE ARGENTINA 
 1239       926         265      Sprint 
 6197       444         252      BellSouth Network Solutions, 
  705       435         239      UUNET Technologies, Inc. 
  376       343         239      Reseau Interordinateurs Scien
 7066       491         233      Virginia Polytechnic Institut
 4814       248         233      China Telecom (Group)
    1       664         230      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
64000   RESERVED      200.63.214.0/24      14522       SatNet S.A. 
63000   RESERVED      200.63.217.0/24      14522       SatNet S.A. 
 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
192.72.0.0/18         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        /8:18       /9:3       /10:8       /11:11      /12:46      
/13:91      /14:238     /15:440     /16:7316    /17:1533    /18:2764    
/19:7963    /20:7636    /21:5474    /22:8318    /23:9963    /24:65695   
/25:141     /26:176     /27:90      /28:96      /29:68      /30:245     
/31:19      /32:68      

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

  ASN   No of nets  Total ann.   Description
 3908      919          1720      Supernet, Inc. 
  701      513          1742      UUNET Technologies, Inc. 
  702      495           811      UUNET - Commercial IP service
  690      457           508      Merit Network 
 7018      449          1388      AT&T 
 7843      436           645      Adelphia Corp. 
 7066      388           491      Virginia Polytechnic Institut
18566      388           395      Covad Communications 
 6197      334           444      BellSouth Network Solutions, 
 6198      333           415      BellSouth Network Solutions, 
 1239      318           926      Sprint 
 1580      302           317      ANOSCEUR 
22927      288           289      TELEFONICA DE ARGENTINA 
 7046      277           584      UUNET Technologies, Inc. 
11492      270           273      Cable One 
 6140      268           279      ImpSat USA, Inc. 
 3215      236           309      France Telecom Transpac
 3301      226           379      TeliaNet Sweden
11537      226           232      University Corporation for Ad
 4355      224           404      EarthLink, Inc. 

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

   8:1        12:607      13:10       15:6        17:3        20:5      
  24:842      25:1        32:46       38:28       40:15       44:1      
  55:1        57:15       61:399      62:412      63:1903     64:1309   
  65:1672     66:1234     67:187      68:175      69:30       80:323    
  81:82      128:117     129:168     130:19      131:67      132:9      
 133:2       134:145     135:6       136:498     137:110     138:213    
 139:55      140:150     141:100     142:92      143:46      144:149    
 145:18      146:253     147:245     148:275     149:76      150:43     
 151:90      152:290     153:36      154:7       155:99      156:106    
 157:58      158:114     159:159     160:21      161:70      162:141    
 163:89      164:257     165:127     166:94      167:295     168:384    
 169:54      170:278     171:8       192:5409    193:2393    194:2018   
 195:873     196:453     198:3602    199:3084    200:2642    202:3579   
 203:4848    204:3316    205:2198    206:2364    207:2506    208:2583   
 209:2660    210:623     211:274     212:883     213:755     214:12     
 215:21      216:3043    217:535     218:66      219:14      220:1      


End of report



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