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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 27 Sep, 2002

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

BGP routing table entries examined:                            115493
    Prefixes after maximum aggregation:                         74306
    Unique aggregates announced to Internet:                    54740
Total ASes present in the Internet Routing Table:               13819
Origin-only ASes present in the Internet Routing Table:         11950
Origin ASes announcing only one prefix:                          5354
Transit ASes present in the Internet Routing Table:              1869
Transit-only ASes present in the Internet Routing Table:           61
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    18
Illegal AS announcements present in the Routing Table:              7
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    35
Number of addresses announced to Internet:                 1193952488
    Equivalent to 71 /8s, 42 /16s and 68 /24s
    Percentage of available address space announced:             32.2
    Percentage of allocated address space announced:             59.0
    Percentage of available address space allocated:             54.6
Total number of prefixes smaller than registry allocations:     47686

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

Prefixes being announced by APNIC Region ASes:                  18725
    Total APNIC prefixes after maximum aggregation:             11349
Prefixes being announced from the APNIC address blocks:         17243
    Unique aggregates announced from the APNIC address blocks:  10956
APNIC Region origin ASes present in the Internet Routing Table:  1620
APNIC Region origin ASes announcing only one prefix:              529
APNIC Region transit ASes present in the Internet Routing Table:  280
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       14
Number of APNIC addresses announced to Internet:             97742368
    Equivalent to 5 /8s, 211 /16s and 110 /24s
    Percentage of available APNIC address space announced:       64.3

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:                   72293
    Total ARIN prefixes after maximum aggregation:              46009
Prefixes being announced from the ARIN address blocks:          50847
    Unique aggregates announced from the ARIN address blocks:   15576
ARIN Region origin ASes present in the Internet Routing Table:   7759
ARIN Region origin ASes announcing only one prefix:              2546
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:                        18
Number of ARIN addresses announced to Internet:             181229888
    Equivalent to 10 /8s, 205 /16s and 89 /24s
    Percentage of available ARIN address space announced:        67.5

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
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:                   19657
    Total RIPE prefixes after maximum aggregation:              14869
Prefixes being announced from the RIPE address blocks:          16289
    Unique aggregates announced from the RIPE address blocks:   10077
RIPE Region origin ASes present in the Internet Routing Table:   4066
RIPE Region origin ASes announcing only one prefix:              2199
RIPE Region transit ASes present in the Internet Routing Table:   757
Average RIPE Region AS path length visible:                       5.8
    Max RIPE Region AS path length visible:                        14
Number of RIPE addresses announced to Internet:             117783680
    Equivalent to 7 /8s, 5 /16s and 60 /24s
    Percentage of available RIPE address space announced:        78.0

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

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

Prefixes being announced by LACNIC Region ASes:                  4812
    Total LACNIC prefixes after maximum aggregation:             2079
Prefixes being announced from the LACNIC address blocks:         4222
    Unique aggregates announced from the LACNIC address blocks:  2619
LACNIC Region origin ASes present in the Internet Routing Table:  314
LACNIC Region origin ASes announcing only one prefix:              80
LACNIC Region transit ASes present in the Internet Routing Table:  67
Average LACNIC Region AS path length visible:                     6.0
    Max LACNIC Region AS path length visible:                      17
Number of LACNIC addresses announced to Internet:            11311872
    Equivalent to 0 /8s, 172 /16s and 155 /24s
    Percentage of available LACNIC address space announced:      67.4

LACNIC AS Blocks       26592 - 26623
LACNIC Address Blocks  200/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1197       1187         881   Telstra Pty Ltd
  703      396        368         311   UUNET
 2907      359       1815         339   SINET Japan
 2764      345        357         317   connect.com.au pty ltd
 7474      305        275         205   Optus Communications Pty Ltd
 4134      290       2268          96   Data Communications Bureau
17557      288         21         110   Pakistan Telecom
 4755      253        141          73   Videsh Sanchar Nigam Ltd. Aut
 4766      249       1808         157   Korea Internet Exchange for "
 4814      224         80          16   China Telecom (Group)
17676      221       3458          32   XTAGE CORPORATION
 9443      185         57          70   Primus Telecommunications
 9583      175         32           5   Satyam Infoway Ltd.,
 4515      139        102          80   Star Internet Services Ltd.
 9768      136        385          74   Korea Telecom
 7657      128         22          85   The Internet Group Limited
 9800      122        188          24   CHINA UNICOM
 4739      117         56         108   Commerical Internet eXchange 
 4713      116       1049         105   NTT Communications Corporatio
 9498      109          8          21   BHARTI BT INTERNET LTD.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1787       9245        1287   UUNET Technologies, Inc. 
 7018     1323       7184         932   AT&T 
 1239     1121       3178         653   Sprint 
 3908     1047       1652         508   Supernet, Inc. 
  852      750       1145         454   Telus Advanced Communications
 7843      713        371         304   Adelphia Corp. 
    1      657       8088         434   GENUITY 
 7132      602        638         140   Southwestern Bell Internet Se
 7046      590        879         311   UUNET Technologies, Inc. 
 4323      523        435         165   Time Warner Communications, I
  209      521       2066         348   Qwest 
  690      517         75         324   Merit Network 
 7066      488        204         258   Virginia Polytechnic Institut
 2548      447       1118         274   Business Internet, Inc. 
 3549      418        727         298   Global Crossing 
  705      409        130         199   UUNET Technologies, Inc. 
 4355      382        292         104   EarthLink, Inc. 
 6197      382        597          39   BellSouth Network Solutions, 
 2914      368       2027         361   Verio, Inc. 
15290      361        230         178   AT&T Canada IES 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      872       2406         727   UUNET - Commercial IP service
 3301      385        907         341   TeliaNet Sweden
 3215      294        677         170   France Telecom Transpac
 3320      243       1966         221   Deutsche Telekom AG
  680      238       2151         234   DFN-IP service G-WiN
 5400      215         86         102   BT Ignite European Backbone
 5515      214        783         177   Sonera Solution Autonomous Sy
 1257      202        444         199   SWIPnet Swedish IP Network
  719      190        306         130   LANLINK autonomous system
  786      177       1873         177   The JANET IP Service
 8708      148         41         143   Romania Data Systems S.A.
 3303      143        532         142   Swisscom Ltd
 2856      132        786         122   BTnet UK Regional network
12302      124         18          31   MobiFon S.A.
 3246      123        373         116   Song Networks
 5511      109        189          87   France Telecom
 8220      108        168         101   COLT Internet - International
 3233      107         10           8   RNC - Romanian Natioanal R&D 
 2874      104         85          40   Global One Services AB
 3269      104        658          63   TELECOM ITALIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      199        298         110   UniNet S.A. de C.V. 
 7303      172         27          50   Telecom Argentina Stet-France
11172      167         88          34   Servicios Alestra S.A de C.V 
 6503      159        206         113   AVANTEL, S.A. 
10834      146         75          34   ADVANCE TELECOMUNICACIONES S.
16814      107          7          13   NSS, S.A. 
13999      103         19           8   Mega Cable S.A. de C.V. 
 6140       99         76          27   ImpSat USA, Inc. 
10620       93          6          29   TVCABLE BOGOTA 
11340       80          2          25   Red Universitaria Nacional 
15034       74          6          32   TIBA SA 
 1916       73        409          40   Fundacao de Amparo a Pesquisa
11992       70          7          30   Integrated Systems 
 4270       68         18          10   Red de Interconexion Universi
15311       68         24          31   Telefonica Empresas 
 2277       66         16           3   ECUANET - CORPORACION ECUATOR
 7984       66         27          42   Global One Colombia 
 4926       64          4          52   Telintar S.A. 
 8065       59          6          16   Empresas Publicas de Medellin
16528       57          5          35   ImpSat S.A. 

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

  ASN   No of nets  Net Savings Description
 3908      1047         539      Supernet, Inc. 
 1239      1121         468      Sprint 
 7132       602         462      Southwestern Bell Internet Se
 7843       713         409      Adelphia Corp. 
 7018      1323         391      AT&T 
 4323       523         358      Time Warner Communications, I
 6197       382         343      BellSouth Network Solutions, 
 1221      1197         316      Telstra Pty Ltd
  852       750         296      Telus Advanced Communications
 7046       590         279      UUNET Technologies, Inc. 
 4355       382         278      EarthLink, Inc. 
 6347       346         268      SAVVIS Communications Corpora
18566       272         268      Covad Communications 
 4151       279         264      USDA 
  376       343         233      Reseau Interordinateurs Scien
 7066       488         230      Virginia Polytechnic Institut
    1       657         223      GENUITY 
  705       409         210      UUNET Technologies, Inc. 
 4814       224         208      China Telecom (Group)
11492       215         201      Cable One 

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

Bad AS  Designation  Network              Transit AS  Description
65011   PRIVATE       207.8.204.0/24        4231       You Tools Corporatio
65011   PRIVATE       207.8.227.0/24        4231       You Tools Corporatio
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
65506   PRIVATE       207.106.30.0/24       4231       You Tools Corporatio
65011   PRIVATE       207.106.58.0/24       4231       You Tools Corporatio
65011   PRIVATE       207.106.90.0/24       4231       You Tools Corporatio
65011   PRIVATE       207.106.122.0/24      4231       You Tools Corporatio

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 
158.0.0.0/13           568     DISO-UNRRA 
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        /8:19       /9:6       /10:7       /11:12      /12:37      
/13:89      /14:236     /15:428     /16:7272    /17:1501    /18:2690    
/19:7876    /20:7533    /21:5285    /22:8097    /23:9823    /24:63807   
/25:165     /26:221     /27:115     /28:83      /29:48      /30:88      
/31:0       /32:55      

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

  ASN   No of nets  Total ann.   Description
 3908      618          1047      Supernet, Inc. 
  702      536           872      UUNET - Commercial IP service
 7843      524           713      Adelphia Corp. 
  701      487          1787      UUNET Technologies, Inc. 
  690      465           517      Merit Network 
 1239      445          1121      Sprint 
 7018      407          1323      AT&T 
 7066      386           488      Virginia Polytechnic Institut
 7046      276           590      UUNET Technologies, Inc. 
18566      268           272      Covad Communications 
 6197      267           382      BellSouth Network Solutions, 
 6198      241           310      BellSouth Network Solutions, 
 3301      228           385      TeliaNet Sweden
 3215      225           294      France Telecom Transpac
 4355      220           382      EarthLink, Inc. 
11492      210           215      Cable One 
 1580      198           211      ANOSCEUR 
  209      193           521      Qwest 
 5400      189           215      BT Ignite European Backbone
  705      185           409      UUNET Technologies, Inc. 

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

   4:2        12:550      13:10       15:4        17:7        20:5      
  24:849      25:1        32:41       38:18       40:7        44:1      
  55:1        57:14       61:355      62:240      63:1918     64:1273   
  65:1573     66:1172     67:107      68:159      80:295      81:60     
 128:66      129:147     130:21      131:55      132:11      133:2      
 134:130     135:9       136:583     137:100     138:158     139:69     
 140:151     141:73      142:71      143:48      144:142     145:17     
 146:251     147:143     148:248     149:78      150:42      151:61     
 152:297     153:38      154:9       155:105     156:102     157:111    
 158:65      159:136     160:23      161:72      162:123     163:88     
 164:261     165:126     166:106     167:269     168:284     169:57     
 170:177     171:3       192:5384    193:2407    194:2019    195:812    
 196:427     198:3601    199:3081    200:2613    202:3394    203:4774   
 204:3297    205:2153    206:2419    207:2485    208:2614    209:2590   
 210:607     211:245     212:889     213:716     214:7       215:19     
 216:2916    217:502     218:44      219:2      

End of report

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