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Weekly Routing Table Report

  • From: Routing Table Analysis
  • Date: Fri Oct 01 14:08:42 2004

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@lists.apnic.net

If you have any comments please contact Philip Smith <pfs@cisco.com>.

Routing Table Report   04:00 +10GMT Sat 02 Oct, 2004

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

BGP routing table entries examined:                              148514
    Prefixes after maximum aggregation:                           87767
    Unique aggregates announced to Internet:                      70657
Total ASes present in the Internet Routing Table:                 18150
Origin-only ASes present in the Internet Routing Table:           15772
Origin ASes announcing only one prefix:                            7354
Transit ASes present in the Internet Routing Table:                2378
Transit-only ASes present in the Internet Routing Table:             75
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      26
Prefixes from unregistered ASNs in the Routing Table:                58
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1342569892
    Equivalent to 80 /8s, 5 /16s and 253 /24s
    Percentage of available address space announced:               36.2
    Percentage of allocated address space announced:               58.5
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       68347

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

Prefixes being announced by APNIC Region ASes:                    28520
    Total APNIC prefixes after maximum aggregation:               14270
Prefixes being announced from the APNIC address blocks:           26682
    Unique aggregates announced from the APNIC address blocks:    14234
APNIC Region origin ASes present in the Internet Routing Table:    2142
APNIC Region origin ASes announcing only one prefix:                640
APNIC Region transit ASes present in the Internet Routing Table:    327
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         22
Number of APNIC addresses announced to Internet:              164342912
    Equivalent to 9 /8s, 203 /16s and 172 /24s
    Percentage of available APNIC address space announced:         75.0

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
                       23552-24575
APNIC Address Blocks   58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     84895
    Total ARIN prefixes after maximum aggregation:                51348
Prefixes being announced from the ARIN address blocks:            65053
    Unique aggregates announced from the ARIN address blocks:     22944
ARIN Region origin ASes present in the Internet Routing Table:     9589
ARIN Region origin ASes announcing only one prefix:                3431
ARIN Region transit ASes present in the Internet Routing Table:     922
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               233130752
    Equivalent to 13 /8s, 229 /16s and 75 /24s
    Percentage of available ARIN address space announced:          69.5

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,
                       26624-27647,29695-30719, 31744-33791
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     27533
    Total RIPE prefixes after maximum aggregation:                19130
Prefixes being announced from the RIPE address blocks:            24369
    Unique aggregates announced from the RIPE address blocks:     15991
RIPE Region origin ASes present in the Internet Routing Table:     5862
RIPE Region origin ASes announcing only one prefix:                3151
RIPE Region transit ASes present in the Internet Routing Table:    1011
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               172404800
    Equivalent to 10 /8s, 70 /16s and 176 /24s
    Percentage of available RIPE address space announced:          60.4

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
                       30720-31743, 33792-34815
RIPE Address Blocks    62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    6310
    Total LACNIC prefixes after maximum aggregation:               2335
Prefixes being announced from the LACNIC address blocks:           6155
    Unique aggregates announced from the LACNIC address blocks:    3602
LACNIC Region origin ASes present in the Internet Routing Table:    392
LACNIC Region origin ASes announcing only one prefix:               111
LACNIC Region transit ASes present in the Internet Routing Table:    80
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        18
Number of LACNIC addresses announced to Internet:              16196608
    Equivalent to 0 /8s, 247 /16s and 36 /24s
    Percentage of available LACNIC address space announced:        48.3

LACNIC AS Blocks       26592-26623, 27648-28671
LACNIC Address Blocks  200/7

Emerging AfriNIC Region Analysis Summary
----------------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1248
    Total AfriNIC prefixes after maximum aggregation:               684
Prefixes being announced from the AfriNIC address blocks:           885
    Unique aggregates announced from the AfriNIC address blocks:    676
AfriNIC Region origin ASes present in the Internet Routing Table:    92
AfriNIC Region origin ASes announcing only one prefix:               21
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              1999104
    Equivalent to 0 /8s, 30 /16s and 129 /24s
    Percentage of available AfriNIC address space announced:       11.9

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      839       4389         159   Data Communications Bureau
 1221      809       1184         581   Telstra Pty Ltd
 4766      544       3408         266   Korea Internet Exchange for "
 9583      530         41         106   Satyam Infoway Ltd.,
17676      370       5532          52   XTAGE CORPORATION
 4755      367        133          48   Videsh Sanchar Nigam Ltd. Aut
 2907      354       1857         328   SINET Japan
 9443      354         69          80   Primus Telecommunications
 9929      344        161          33   China Netcom Corp.
  703      312        342         241   UUNET
17557      312         23         156   Pakistan Telecom
 2764      283        274         232   connect.com.au pty ltd
 7474      271        269         202   Optus Communications Pty Ltd
 9942      240         73         129   COMindico Australia
 4802      232         28         141   Wantree Development
 9800      230        374          67   CHINA UNICOM
 9498      228         49          48   BHARTI BT INTERNET LTD.
 7563      210         48         164   Korea Internet Infrastructure
17974      203         62          10   PT TELEKOMUNIKASI INDONESIA
 4837      202       2264         106   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1406       6760         980   AT&T WorldNet Services
  701     1269       8429         916   UUNET Technologies, Inc. 
 1239      940       2867         624   Sprint 
 3549      852        563         206   Global Crossing 
 2386      841        530         602   AT&T Data Communications Serv
 4323      796        637         218   Time Warner Telecom
 6197      776        365         349   BellSouth Network Solutions, 
18566      743        208           6   Covad Communications 
  721      720      21028         298   DLA Systems Automation Center
  209      629       3465         498   Qwest 
 3561      618       2494         426   Cable & Wireless USA 
 3356      587      10907         446   Level 3 Communications, LLC 
20115      587        425         300   Charter Communications 
  852      512       1142         398   Telus Advanced Communications
 7843      489        681          98   Adelphia Corp. 
 7132      435       8157         377   SBC Internet Services
  705      431        163         273   UUNET Technologies, Inc. 
 6198      430        396         200   BellSouth Network Solutions, 
22773      401        960          18   Cox Communications, Inc. Atla
 5668      398         87          18   Century Telephone 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      637       2031         527   UUNET - Commercial IP service
 3320      299       2470         237   Deutsche Telekom AG
 8220      282        461         268   COLT Internet - International
 3301      281       1100         271   TeliaNet Sweden
21502      268         40           3   NUMERICABLE is a cabled netwo
  680      251       2025         239   DFN-IP service G-WiN
 3246      218        476         215   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 1257      208        744         178   SWIPnet Swedish IP Network
 8708      205        113         182   Romania Data Systems S.A.
 5515      201        843         147   Sonera Solution Autonomous Sy
 3215      188        876          76   France Telecom Transpac
  786      176       1794         176   The JANET IP Service
  719      157        288         102   LANLINK autonomous system
 6746      151         29         128   Dynamic Network Technologies,
 8866      150         18          19   Bulgarian Telecommunication C
25186      149        154         106   France Telecom Transpac's Tra
 3269      147       1227          67   TELECOM ITALIA
 5400      147        207         119   BT Ignite European Backbone
 3303      146        609         129   Swisscom Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      367        138          68   ImpSat
 8151      303        439         129   UniNet S.A. de C.V. 
16814      212         13           7   NSS, S.A. 
11172      203         99          52   Servicios Alestra S.A de C.V 
 6147      193         90          20   Telefonica Del Peru 
11664      163         12          35   Keytech SA 
 6505      137         90          94   Global One Communicaoes Ltda 
 7303      129         58          23   Telecom Argentina Stet-France
 6503      127        164          86   AVANTEL, S.A. 
11992       90          9          31   Integrated Systems 
 6535       85          7          19   Chilesat Servicios  Empresari
11311       84          8          24   Sinectis S.A. 
10481       81         32           7   Prima S.A. 
11556       80         40           2   Cable-Wireless Panama 
14420       80          5          33   ANDINATEL S.A. 
 5639       77          8           8   Telecommunications Services o
15311       76         21          36   Telefonica Empresas 
10292       71          6          27   TELECOMMUNICATIONS OF JAMAICA
14117       71          6           4   Telefonica del Sur S.A. 
 4270       70         18           9   Red de Interconexion Universi

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      251        631         218   The Internet Solution 
 5536      114         16           4   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       92        276          81   The Internetworking Company o
20928       59         16           1   Noor Advanced Technologies AS
22750       50          3           2   >>UNKNOWN<<
 6713       31         42          10   Itissalat Al-MAGHRIB
 9129       31          3           4   UUNET Kenya
 5713       26        125          24   Telkom SA Ltd 
 8524       25          1           4   AUCEGYPT Autonomous System
14988       25         16           1   Botswana Telecommunications C
16637       24         10          19   Johnnic e-Ventures 
10798       18          1          12   Standard Bank of South Africa
12258       18          3          12   Vodacom Internet Company 
12455       17          4           2   Jambonet Autonomous system
21491       16          1           3   UTL On-line is RF broadband I
 8346       15          7          14   SONATEL-AS Autonomous System
15706       15          4           2   Sudatel Internet Exchange Aut
24835       15         18           5   RAYA Telecom - Egypt
21280       14          2           3   Swift Global Kenya Ltd.Is an 

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

  ASN   No of nets  Net Savings Description
18566       743         737      Covad Communications 
 4134       839         680      Data Communications Bureau
 3549       852         646      Global Crossing 
 4323       796         578      Time Warner Telecom
 6197       776         427      BellSouth Network Solutions, 
 9583       530         424      Satyam Infoway Ltd.,
  721       720         422      DLA Systems Automation Center
 7843       489         391      Adelphia Corp. 
22773       401         383      Cox Communications, Inc. Atla
 5668       398         380      Century Telephone 
27364       395         376      Armstrong Cable Services 
 6467       388         359      E.Spire Communications, Inc. 
  701      1269         353      UUNET Technologies, Inc. 
22909       381         347      Comcast Cable Corporation 
 4755       367         319      Videsh Sanchar Nigam Ltd. Aut
17676       370         318      XTAGE CORPORATION
 1239       940         316      Sprint 
 9929       344         311      China Netcom Corp.
 6140       367         299      ImpSat
 6478       370         296      AT&T Worldnet Services 

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

Bad AS  Designation  Network              Transit AS  Description
64512   PRIVATE       24.249.231.0/24      15218       COX Communications 
64512   PRIVATE       24.249.232.0/24      15218       COX Communications 
64512   PRIVATE       24.249.233.0/24      15218       COX Communications 
64512   PRIVATE       24.249.234.0/24      15218       COX Communications 
64512   PRIVATE       24.249.235.0/24      15218       COX Communications 
65010   PRIVATE       64.192.10.0/23        7911       Williams Communicati
65217   PRIVATE       192.102.236.0/24       217       University of Minnes
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
22750   UNALLOCATED   196.44.64.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.64.0/19        2905       The Internetworking 
22750   UNALLOCATED   196.44.65.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.66.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.67.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.68.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.69.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.70.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.71.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.72.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.73.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.74.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.75.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.76.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.77.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.78.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.79.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.80.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.81.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.82.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.83.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.84.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.85.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.86.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.87.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.88.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.89.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.90.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.91.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.92.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.93.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.94.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.95.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.224.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.224.0/20       2905       The Internetworking 
22750   UNALLOCATED   196.44.225.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.226.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.227.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.228.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.229.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.230.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.231.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.232.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.233.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.234.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.235.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.236.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.237.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.238.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.239.0/24       2905       The Internetworking 

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
111.0.0.0/24          7563     Korea Internet Infrastructure
132.0.0.0/10           721     DLA Systems Automation Center
137.0.0.0/13           721     DLA Systems Automation Center
158.0.0.0/13           721     DLA Systems Automation Center
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
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
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T WorldNet Services
192.136.79.0/24        719     LANLINK autonomous system
192.172.0.0/19         721     DLA Systems Automation Center
192.172.11.0/24        721     DLA Systems Automation Center

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:3       /10:6       /11:15      /12:62      
/13:133     /14:306     /15:546     /16:8084    /17:2240    /18:3882    
/19:9833    /20:10353   /21:7850    /22:10822   /23:12480   /24:81100   
/25:236     /26:207     /27:113     /28:51      /29:30      /30:97      
/31:0       /32:46      

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

  ASN   No of nets  Total ann.   Description
18566      728           743      Covad Communications 
 6197      627           776      BellSouth Network Solutions, 
 2386      607           841      AT&T Data Communications Serv
 7018      554          1406      AT&T WorldNet Services
 3549      450           852      Global Crossing 
  702      388           637      UUNET - Commercial IP service
27364      379           395      Armstrong Cable Services 
 1239      375           940      Sprint 
 9583      368           530      Satyam Infoway Ltd.,
 4766      363           544      Korea Internet Exchange for "
  701      352          1269      UUNET Technologies, Inc. 
 5668      346           398      Century Telephone 
 6198      316           430      BellSouth Network Solutions, 
20115      299           587      Charter Communications 
 6467      288           388      E.Spire Communications, Inc. 
 9929      275           344      China Netcom Corp.
 6517      265           292      Yipes Communications, Inc. 
13609      265           308      Choice One Communications Inc
21502      265           268      NUMERICABLE is a cabled netwo
 4323      248           796      Time Warner Telecom

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

   4:4         8:7        12:1402     13:1        15:5        16:2      
  17:3        18:1        20:6        24:717      32:66       33:2      
  38:78       40:54       44:3        47:2        52:3        55:1      
  56:3        57:17       60:6        61:520      62:494      63:1848   
  64:2541     65:2054     66:2506     67:389      68:546      69:717    
  70:79       80:523      81:553      82:313      83:172      84:32     
 111:1       128:121     129:169     130:87      131:186     132:35     
 134:187     135:17      136:176     137:55      138:182     139:36     
 140:187     141:107     142:123     143:64      144:159     145:42     
 146:323     147:94      148:326     149:108     150:87      151:65     
 152:153     153:67      154:2       155:127     156:58      157:73     
 158:142     159:162     160:55      161:68      162:374     163:80     
 164:211     165:161     166:118     167:223     168:356     169:120    
 170:267     171:9       192:5574    193:2903    194:2131    195:1499   
 196:644     198:3646    199:3290    200:3661    201:20      202:4872   
 203:5700    204:3333    205:2098    206:2443    207:2645    208:2280   
 209:3008    210:1485    211:639     212:1111    213:1195    214:133    
 215:31      216:3679    217:1035    218:175     219:101     220:256    
 221:37      222:43     

End of report




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