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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 14 Jun, 2002

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

BGP routing table entries examined:                            116633
    Prefixes after maximum aggregation:                         75593
    Unique aggregates announced to Internet:                    52672
Total ASes present in the Internet Routing Table:               13222
Origin-only ASes present in the Internet Routing Table:         11458
Origin ASes announcing only one prefix:                          5048
Transit ASes present in the Internet Routing Table:              1764
Transit-only ASes present in the Internet Routing Table:           52
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    16
Illegal AS announcements present in the Routing Table:             26
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    36
Number of addresses announced to Internet:                 1196237788
    Equivalent to 71 /8s, 77 /16s and 35 /24s
    Percentage of available address space announced:             32.3
    Percentage of allocated address space announced:             60.1
    Percentage of available address space allocated:             53.7
Total number of prefixes smaller than registry allocations:     49179

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

Prefixes being announced by APNIC Region ASes:                  18425
    Total APNIC prefixes after maximum aggregation:             11036
Prefixes being announced from the APNIC address blocks:         16897
    Unique aggregates announced from the APNIC address blocks:   9854
APNIC Region origin ASes present in the Internet Routing Table:  1536
APNIC Region origin ASes announcing only one prefix:              504
APNIC Region transit ASes present in the Internet Routing Table:  276
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       12
Number of APNIC addresses announced to Internet:             89807456
    Equivalent to 5 /8s, 90 /16s and 90 /24s
    Percentage of available APNIC address space announced:       66.4

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 220/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                   79070
    Total ARIN prefixes after maximum aggregation:              50068
Prefixes being announced from the ARIN address blocks:          54241
    Unique aggregates announced from the ARIN address blocks:   16714
ARIN Region origin ASes present in the Internet Routing Table:   7799
ARIN Region origin ASes announcing only one prefix:              2490
ARIN Region transit ASes present in the Internet Routing Table:   766
Average ARIN Region AS path length visible:                       5.3
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             193366356
    Equivalent to 11 /8s, 134 /16s and 137 /24s
    Percentage of available ARIN address space announced:        72.0

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 - 26623
ARIN Address Blocks    24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
                       208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                   19138
    Total RIPE prefixes after maximum aggregation:              14489
Prefixes being announced from the RIPE address blocks:          15831
    Unique aggregates announced from the RIPE address blocks:   10548
RIPE Region origin ASes present in the Internet Routing Table:   3835
RIPE Region origin ASes announcing only one prefix:              2054
RIPE Region transit ASes present in the Internet Routing Table:   707
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        16
Number of RIPE addresses announced to Internet:             110449440
    Equivalent to 6 /8s, 149 /16s and 83 /24s
    Percentage of available RIPE address space announced:        73.1

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1261       1222         907   Telstra Pty Ltd
 4538      461       1130          16   China Education and Research 
  703      412        350         330   UUNET Technologies, Inc. 
 2907      378       1827         351   SINET Japan
 2764      376        359         343   connect.com.au pty ltd
 7474      311        291         207   Optus Communications Pty Ltd
17557      303         20         115   Pakistan Telecom
 4134      290       2132         102   Data Communications Bureau
 4755      287        115          77   Videsh Sanchar Nigam Ltd. Aut
 9443      250         45          65   Primus Telecommunications
 4766      225       1516         156   Korea Internet Exchange for "
 4814      197         79          14   China Telecom (Group) - Beiji
 4713      183       1009         106   NTT Communications Corporatio
 9583      173         32           5   Satyam Infoway Ltd.,
 7539      154        203         149   TANet2, sponsored by NSC, TAI
17676      147       2274          22   XTAGE CORPORATION
 9768      146        386          75   Korea Telecom
 7657      138         22          86   The Internet Group Limited
 9800      115        187          23   CHINA UNICOM
 4780      112        186          39   Digital United Inc.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1023       2619         847   UUNET Technologies, Inc. 
 3301      393        908         344   TeliaNet Sweden
 3352      281        537          27   Ibernet, Internet Access Netw
 3215      264        598         163   France Telecom / &Equant
  680      233       2149         230   DFN-IP service G-WiN
 3320      231       1946         184   Deutsche Telekom AG
 5515      206        783         172   Sonera Finland Autonomous Sys
 1257      203        430         200   SWIPnet Swedish IP Network
 5400      203         83          94   Concert European Core Network
  719      191        306         129   LANLINK autonomous system
  786      179       1873         178   The JANET IP Service
 8708      140         23         137   Romania Data Systems S.A.
 2856      125        789         115   BTnet UK Regional network
12302      122         10          29   MobiFon S.A.
 3303      121        546         120   Swisscom Ltd
 3269      113        692          70   TELECOM ITALIA
 8297      112         57          65   Teleglobe Autonomous System i
 3246      107        284         101   Song Networks / Clinet
 3233      102          6          56   RNC - Romanian Natioanal R&D 
 2874       98         85          38   Global One Services AB

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 2149     3127        366        2551   Performance Systems, Inc. 
  701     2005       9005        1410   UUNET Technologies, Inc. 
 7018     1287       7437         934   AT&T 
 3908      898       1642         493   Supernet, Inc. 
 1239      809       3406         645   Sprint 
  705      801        176         275   UUNET Technologies, Inc. 
  852      780       1191         447   Telus Advanced Communications
    1      700       8148         449   GENUITY 
 4323      629        436         257   Time Warner Communications, I
  209      606       1972         338   Qwest 
 7046      603        851         399   UUNET Technologies, Inc. 
  690      586         81         374   Merit Network 
 7132      574        611         133   Southwestern Bell Internet Se
 7843      526        369          76   Adelphia Corp. 
 3549      484        857         323   Global Crossing 
 7066      475        202         248   Virginia Polytechnic Institut
 2914      395       2108         386   Verio, Inc. 
15290      386        299         200   AT&T Canada IES 
 6197      346        246         170   BellSouth Network Solutions, 
 6347      337        370          78   SAVVIS Communications Corpora

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

  ASN   No of nets  Net Savings Description
  701      2005         595      UUNET Technologies, Inc. 
  705       801         526      UUNET Technologies, Inc. 
 7843       526         450      Adelphia Corp. 
 4538       461         445      China Education and Research 
 7132       574         441      Southwestern Bell Internet Se
 3908       898         405      Supernet, Inc. 
 4323       629         372      Time Warner Communications, I
 1221      1261         354      Telstra Pty Ltd
 7018      1287         353      AT&T 
  852       780         333      Telus Advanced Communications
11371       292         286      Rhythms NetConnections 
  174       299         270      PSINet Inc. 
 4151       285         269      USDA 
  209       606         268      Qwest 
 6347       337         259      SAVVIS Communications Corpora
 3352       281         254      Ibernet, Internet Access Netw
    1       700         251      GENUITY 
 7029       263         248      Alltel Information Services, 
 4355       297         244      EarthLink, Inc. 
 7066       475         227      Virginia Polytechnic Institut

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

Bad AS  Designation  Network              Transit AS  Description
 6262   UNALLOCATED   150.229.0.0/19        7572       Australian Academic 
25975   UNALLOCATED   192.58.243.0/24       4565       Epoch Networks 
25975   UNALLOCATED   192.104.242.0/24      4565       Epoch Networks 
 1877   UNALLOCATED   192.108.201.0/24      1880       Stupi, house man's p
12501   UNALLOCATED   193.13.234.0/24       3301       TeliaNet Sweden
12501   UNALLOCATED   193.180.0.0/24        3301       TeliaNet Sweden
12501   UNALLOCATED   193.180.5.0/24        3301       TeliaNet Sweden
12501   UNALLOCATED   193.180.7.0/24        3301       TeliaNet Sweden
12501   UNALLOCATED   193.180.243.0/24      3301       TeliaNet Sweden
12501   UNALLOCATED   193.180.244.0/23      3301       TeliaNet Sweden
12501   UNALLOCATED   193.180.246.0/24      3301       TeliaNet Sweden
12501   UNALLOCATED   194.165.224.0/19      3301       TeliaNet Sweden
25975   UNALLOCATED   198.177.251.0/24      4565       Epoch Networks 
25975   UNALLOCATED   198.177.252.0/23      4565       Epoch Networks 
25975   UNALLOCATED   198.177.254.0/24      4565       Epoch Networks 
18228   UNALLOCATED   202.6.160.0/20        3758       SingNet
17996   UNALLOCATED   202.162.32.0/20      17885       ISP-Project
17902   UNALLOCATED   203.109.150.0/24      4648       Netgate
25979   UNALLOCATED   205.213.213.0/24       701       UUNET Technologies, 
25979   UNALLOCATED   205.213.214.0/24       701       UUNET Technologies, 
25979   UNALLOCATED   205.213.215.0/24       701       UUNET Technologies, 
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
12501   UNALLOCATED   212.32.128.0/18       3301       TeliaNet Sweden
12501   UNALLOCATED   212.217.128.0/17      3301       TeliaNet Sweden
12501   UNALLOCATED   213.79.128.0/17       3301       TeliaNet Sweden
25967   UNALLOCATED   216.234.80.0/20        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 
154.150.0.0/16        6494     IDCI 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
192.26.98.0/24        1239     Sprint 
192.44.0.0/19          702     UUNET Technologies, Inc. 
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 Finland Autonomous Sys
192.83.32.0/19        5515     Sonera Finland Autonomous Sys
192.83.96.0/22        5515     Sonera Finland Autonomous Sys
192.83.100.0/24       5515     Sonera Finland Autonomous Sys
192.91.198.0/24       2568     CTS Network Services 
192.92.167.0/24        297     NASA Science Network 
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
192.135.248.0/23       109     Cisco Systems, Inc. 
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
192.152.213.0/24      1239     Sprint 
192.153.136.0/21       568     DISO-UNRRA 
192.156.0.0/19         568     DISO-UNRRA 
192.172.0.0/19         568     DISO-UNRRA 
192.195.253.0/24       237     Merit Network 
192.208.29.0/24       3908     Supernet, Inc. 
192.208.30.0/23       3908     Supernet, Inc. 
192.243.36.0/23       7168     Northwest Link 

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:21       /9:6       /10:7       /11:12      /12:34      
/13:89      /14:233     /15:415     /16:7245    /17:1452    /18:2612    
/19:7645    /20:7240    /21:5094    /22:7825    /23:9513    /24:66466   
/25:199     /26:180     /27:82      /28:86      /29:51      /30:90      
/31:1       /32:35      

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

  ASN   No of nets  Total ann.   Description
 2149     2879          3127      Performance Systems, Inc. 
  702      631          1023      UUNET Technologies, Inc. 
  705      594           801      UUNET Technologies, Inc. 
  701      567          2005      UUNET Technologies, Inc. 
 3908      488           898      Supernet, Inc. 
  690      465           586      Merit Network 
 7066      380           475      Virginia Polytechnic Institut
 7018      339          1287      AT&T 
 7843      318           526      Adelphia Corp. 
  209      275           606      Qwest 
  174      262           299      PSINet Inc. 
 7046      250           603      UUNET Technologies, Inc. 
 6197      249           346      BellSouth Network Solutions, 
 7029      248           263      Alltel Information Services, 
11371      245           292      Rhythms NetConnections 
 3301      235           393      TeliaNet Sweden
 6198      232           319      BellSouth Network Solutions, 
18566      219           223      Covad Communications 
 6517      217           239      Yipes Communications, Inc. 
 1239      210           809      Sprint 

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

   4:3         9:1        12:505      13:10       15:2        17:6      
  20:2        24:780      25:1        32:41       38:3012     40:6      
  44:1        57:13       61:266      62:200      63:1923     64:1233   
  65:1637     66:953      67:84       68:170      80:237      81:27     
 128:60      129:140     130:24      131:48      132:11      133:3      
 134:119     135:8       136:246     137:93      138:150     139:58     
 140:168     141:121     142:83      143:37      144:151     145:14     
 146:174     147:139     148:210     149:92      150:40      151:127    
 152:262     153:34      154:15      155:99      156:77      157:126    
 158:69      159:127     160:18      161:68      162:154     163:100    
 164:255     165:130     166:227     167:172     168:130     169:59     
 170:343     171:2       192:5484    193:2365    194:2061    195:942    
 196:398     198:3688    199:3230    200:2572    202:3222    203:4620   
 204:3259    205:2177    206:2562    207:2680    208:2676    209:2696   
 210:587     211:223     212:917     213:641     214:9       215:19     
 216:3006    217:456     218:39      219:41     

End of report

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