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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 28 Jun, 2002

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

BGP routing table entries examined:                            113461
    Prefixes after maximum aggregation:                         73552
    Unique aggregates announced to Internet:                    54191
Total ASes present in the Internet Routing Table:               13300
Origin-only ASes present in the Internet Routing Table:         11517
Origin ASes announcing only one prefix:                          5099
Transit ASes present in the Internet Routing Table:              1783
Transit-only ASes present in the Internet Routing Table:           49
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:              3
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:                 1195266012
    Equivalent to 71 /8s, 62 /16s and 79 /24s
    Percentage of available address space announced:             32.2
    Percentage of allocated address space announced:             60.1
    Percentage of available address space allocated:             53.7
Total number of prefixes smaller than registry allocations:     45931

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

Prefixes being announced by APNIC Region ASes:                  18539
    Total APNIC prefixes after maximum aggregation:             11056
Prefixes being announced from the APNIC address blocks:         17010
    Unique aggregates announced from the APNIC address blocks:  10442
APNIC Region origin ASes present in the Internet Routing Table:  1544
APNIC Region origin ASes announcing only one prefix:              501
APNIC Region transit ASes present in the Internet Routing Table:  275
Average APNIC Region AS path length visible:                      5.3
    Max APNIC Region AS path length visible:                       12
Number of APNIC addresses announced to Internet:             87593312
    Equivalent to 5 /8s, 56 /16s and 145 /24s
    Percentage of available APNIC address space announced:       64.8

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:                   75682
    Total ARIN prefixes after maximum aggregation:              47908
Prefixes being announced from the ARIN address blocks:          53850
    Unique aggregates announced from the ARIN address blocks:   17635
ARIN Region origin ASes present in the Internet Routing Table:   7832
ARIN Region origin ASes announcing only one prefix:              2510
ARIN Region transit ASes present in the Internet Routing Table:   771
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        16
Number of ARIN addresses announced to Internet:             192501588
    Equivalent to 11 /8s, 121 /16s and 87 /24s
    Percentage of available ARIN address space announced:        71.7

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 - 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:                   19238
    Total RIPE prefixes after maximum aggregation:              14588
Prefixes being announced from the RIPE address blocks:          15939
    Unique aggregates announced from the RIPE address blocks:   10568
RIPE Region origin ASes present in the Internet Routing Table:   3876
RIPE Region origin ASes announcing only one prefix:              2088
RIPE Region transit ASes present in the Internet Routing Table:   722
Average RIPE Region AS path length visible:                       5.8
    Max RIPE Region AS path length visible:                        16
Number of RIPE addresses announced to Internet:             111988256
    Equivalent to 6 /8s, 172 /16s and 206 /24s
    Percentage of available RIPE address space announced:        74.2

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     1265       1223         905   Telstra Pty Ltd
 4538      424       1194          16   China Education and Research 
  703      400        357         318   UUNET Technologies, Inc. 
 2764      369        359         338   connect.com.au pty ltd
 2907      366       1864         340   SINET Japan
 7474      313        292         208   Optus Communications Pty Ltd
17557      302         20         114   Pakistan Telecom
 4755      296        117          82   Videsh Sanchar Nigam Ltd. Aut
 4134      289       2114         105   Data Communications Bureau
 9443      252         45          66   Primus Telecommunications
 4713      226       1009         106   NTT Communications Corporatio
 4766      216       1504         154   Korea Internet Exchange for "
 4814      201         79          14   China Telecom (Group) - Beiji
 9583      177         32           5   Satyam Infoway Ltd.,
 7539      155        219         149   TANet2, sponsored by NSC, TAI
17676      152       2354          23   XTAGE CORPORATION
 9768      145        386          74   Korea Telecom
 7657      139         22          88   The Internet Group Limited
 9800      125        191          18   CHINA UNICOM
 4621      112         11          61   UNINET-TH

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702     1023       2615         846   UUNET Technologies, Inc. 
 3301      402        925         351   TeliaNet Sweden
 3352      277        535          26   Ibernet, Internet Access Netw
 3215      266        598         165   France Telecom / &Equant
 3320      241       1947         193   Deutsche Telekom AG
  680      233       2149         230   DFN-IP service G-WiN
 5515      206        783         172   Sonera Finland Autonomous Sys
 5400      205         83          94   Concert European Core Network
 1257      204        430         201   SWIPnet Swedish IP Network
  719      192        306         130   LANLINK autonomous system
  786      177       1857         176   The JANET IP Service
 8708      141         23         138   Romania Data Systems S.A.
 3303      136        546         135   Swisscom Ltd
12302      128         18          35   MobiFon S.A.
 2856      126        786         116   BTnet UK Regional network
 3269      111        690          68   TELECOM ITALIA
 3246      110        301         105   Song Networks / Clinet
 8297      105         52          58   Teleglobe Autonomous System i
 2874      103         85          39   Global One Services AB
 3233      102          6          56   RNC - Romanian Natioanal R&D 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1862       9258        1387   UUNET Technologies, Inc. 
 7018     1296       7469         933   AT&T 
 3908      916       1642         496   Supernet, Inc. 
 1239      820       3360         645   Sprint 
    1      699       8131         450   GENUITY 
  852      678       1173         448   Telus Advanced Communications
 4323      632        438         259   Time Warner Communications, I
  209      613       2003         350   Qwest 
 7843      608        354         242   Adelphia Corp. 
 7046      590        876         377   UUNET Technologies, Inc. 
 7132      579        659         133   Southwestern Bell Internet Se
  690      511         75         317   Merit Network 
 7029      478        167          58   Alltel Information Services, 
 7066      468        202         250   Virginia Polytechnic Institut
 3549      439        836         314   Global Crossing 
 2149      422        195         320   Performance Systems, Inc. 
 2914      389       2100         382   Verio, Inc. 
15290      381        297         196   AT&T Canada IES 
 6197      347        248         169   BellSouth Network Solutions, 
 6347      342        370          80   SAVVIS Communications Corpora

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

  ASN   No of nets  Net Savings Description
 7132       579         446      Southwestern Bell Internet Se
 3908       916         420      Supernet, Inc. 
 7029       478         420      Alltel Information Services, 
 4538       424         408      China Education and Research 
 4323       632         373      Time Warner Communications, I
 7843       608         366      Adelphia Corp. 
 7018      1296         363      AT&T 
 1221      1265         360      Telstra Pty Ltd
11371       292         286      Rhythms NetConnections 
 4151       289         273      USDA 
  209       613         263      Qwest 
 6347       342         262      SAVVIS Communications Corpora
 4355       306         253      EarthLink, Inc. 
 3352       277         251      Ibernet, Internet Access Netw
    1       699         249      GENUITY 
  852       678         230      Telus Advanced Communications
 4454       248         225      OIR Telecommunications, State
18566       228         224      Covad Communications 
 7066       468         218      Virginia Polytechnic Institut
 6198       322         217      BellSouth Network Solutions, 

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

Bad AS  Designation  Network              Transit AS  Description
65111   PRIVATE       64.200.152.0/23       7911       Williams Communicati
65111   PRIVATE       64.200.154.0/23       7911       Williams Communicati
 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 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
192.5.154.0/24       16588     Spider Web Hosting Solutions 
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        /8:20       /9:6       /10:7       /11:12      /12:36      
/13:87      /14:232     /15:417     /16:7241    /17:1449    /18:2640    
/19:7692    /20:7306    /21:5130    /22:7870    /23:9605    /24:63043   
/25:188     /26:168     /27:78      /28:83      /29:44      /30:83      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
  702      631          1023      UUNET Technologies, Inc. 
  701      514          1862      UUNET Technologies, Inc. 
 3908      504           916      Supernet, Inc. 
  690      452           511      Merit Network 
 7843      418           608      Adelphia Corp. 
 7029      376           478      Alltel Information Services, 
 7066      373           468      Virginia Polytechnic Institut
 7018      353          1296      AT&T 
  209      270           613      Qwest 
 6197      249           347      BellSouth Network Solutions, 
11371      245           292      Rhythms NetConnections 
 3301      238           402      TeliaNet Sweden
 6198      235           322      BellSouth Network Solutions, 
 7046      232           590      UUNET Technologies, Inc. 
18566      224           228      Covad Communications 
 6517      213           235      Yipes Communications, Inc. 
 1239      203           820      Sprint 
 1580      203           233      HQ, 5th Signal Command 
 3352      201           277      Ibernet, Internet Access Netw
 3215      200           266      France Telecom / &Equant

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

   4:3         9:1        12:502      13:10       15:2        17:6      
  20:2        24:799      25:1        32:41       38:9        40:6      
  44:1        57:13       61:269      62:217      63:1905     64:1244   
  65:1405     66:998      67:89       68:47       80:259      81:30     
 128:60      129:133     130:22      131:47      132:11      133:3      
 134:121     135:8       136:244     137:92      138:145     139:69     
 140:175     141:121     142:83      143:40      144:153     145:14     
 146:180     147:138     148:223     149:89      150:40      151:67     
 152:261     153:33      154:14      155:106     156:77      157:127    
 158:69      159:128     160:18      161:69      162:214     163:100    
 164:261     165:134     166:223     167:172     168:131     169:60     
 170:358     171:3       192:5482    193:2360    194:2072    195:938    
 196:397     198:3649    199:3193    200:2555    202:3235    203:4654   
 204:3249    205:2160    206:2690    207:2602    208:2674    209:2647   
 210:585     211:226     212:897     213:646     214:9       215:19     
 216:2826    217:458     218:44      219:81     

End of report

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