[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Feb 27 13:08:36 EST 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 at lists.apnic.net

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

Routing Table Report   04:00 +10GMT Sat 28 Feb, 2004

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

BGP routing table entries examined:                            133874
    Prefixes after maximum aggregation:                         81885
    Unique aggregates announced to Internet:                    56016
Total ASes present in the Internet Routing Table:               16723
Origin-only ASes present in the Internet Routing Table:         14506
Origin ASes announcing only one prefix:                          6702
Transit ASes present in the Internet Routing Table:              2217
Transit-only ASes present in the Internet Routing Table:           68
Average AS path length visible in the Internet Routing Table:     4.8
    Max AS path length visible:                                    31
Illegal AS announcements present in the Routing Table:             21
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           14
Number of addresses announced to Internet:                 1349061060
    Equivalent to 80 /8s, 105 /16s and 9 /24s
    Percentage of available address space announced:             36.4
    Percentage of allocated address space announced:             62.5
    Percentage of available address space allocated:             58.2
Total number of prefixes smaller than registry allocations:     59334

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

Prefixes being announced by APNIC Region ASes:                    25018
    Total APNIC prefixes after maximum aggregation:               13252
Prefixes being announced from the APNIC address blocks:           23409
    Unique aggregates announced from the APNIC address blocks:    13173
APNIC Region origin ASes present in the Internet Routing Table:    2006
APNIC Region origin ASes announcing only one prefix:                594
APNIC Region transit ASes present in the Internet Routing Table:    319
Average APNIC Region AS path length visible:                        4.9
    Max APNIC Region AS path length visible:                         19
Number of APNIC addresses announced to Internet:              145874560
    Equivalent to 8 /8s, 177 /16s and 222 /24s
    Percentage of available APNIC address space announced:       78.6

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

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

Prefixes being announced by ARIN Region ASes:                     77952
    Total ARIN prefixes after maximum aggregation:                48275
Prefixes being announced from the ARIN address blocks:            60255
    Unique aggregates announced from the ARIN address blocks:     14673
ARIN Region origin ASes present in the Internet Routing Table:     8976
ARIN Region origin ASes announcing only one prefix:                3177
ARIN Region transit ASes present in the Internet Routing Table:     882
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               249358336
    Equivalent to 14 /8s, 220 /16s and 232 /24s
    Percentage of available ARIN address space announced:          82.6

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 - 32767
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     24126
    Total RIPE prefixes after maximum aggregation:                17475
Prefixes being announced from the RIPE address blocks:            20980
    Unique aggregates announced from the RIPE address blocks:     11775
RIPE Region origin ASes present in the Internet Routing Table:     5215
RIPE Region origin ASes announcing only one prefix:                2806
RIPE Region transit ASes present in the Internet Routing Table:     897
Average RIPE Region AS path length visible:                         5.5
    Max RIPE Region AS path length visible:                          31
Number of RIPE addresses announced to Internet:               172105344
    Equivalent to 10 /8s, 66 /16s and 30 /24s
    Percentage of available RIPE address space announced:          78.9

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
RIPE Address Blocks    62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    5583
    Total LACNIC prefixes after maximum aggregation:               2209
Prefixes being announced from the LACNIC address blocks:           5311
    Unique aggregates announced from the LACNIC address blocks:    3216
LACNIC Region origin ASes present in the Internet Routing Table:    369
LACNIC Region origin ASes announcing only one prefix:               103
LACNIC Region transit ASes present in the Internet Routing Table:    72
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              14329344
    Equivalent to 0 /8s, 218 /16s and 166 /24s
    Percentage of available LACNIC address space announced:        42.7

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

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

Prefixes being announced by AfriNIC Region ASes:                   1175
    Total AfriNIC prefixes after maximum aggregation:               674
Prefixes being announced from the AfriNIC address blocks:           746
    Unique aggregates announced from the AfriNIC address blocks:    558
AfriNIC Region origin ASes present in the Internet Routing Table:    89
AfriNIC Region origin ASes announcing only one prefix:               22
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              1766400
    Equivalent to 0 /8s, 26 /16s and 244 /24s
    Percentage of available AfriNIC address space announced:       10.5

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221      897       1086         643   Telstra Pty Ltd
 4134      669       2491         118   Data Communications Bureau
 4766      430       2913         236   Korea Internet Exchange for "
 4755      361        130          59   Videsh Sanchar Nigam Ltd. Aut
 2907      359       1846         336   SINET Japan
 9583      350         42          24   Satyam Infoway Ltd.,
 9443      347         70          81   Primus Telecommunications
  703      339        374         262   UUNET
17557      332         24         162   Pakistan Telecom
 2764      296        274         241   connect.com.au pty ltd
17676      296       4364          37   XTAGE CORPORATION
 7474      269        303         209   Optus Communications Pty Ltd
 9942      231         70         132   COMindico Australia
 9929      228        155          30   China Netcom Corp.
 9800      215        347          55   CHINA UNICOM
 9498      190         30          36   BHARTI BT INTERNET LTD.
 4837      164       1571         102   chinanet IDC center beijing n
 9304      164        159          23   Hutchison Telecom (HK)
 4739      151         60         138   Commerical Internet eXchange 
 7633      149         23          42   Software Technology Parks of 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1402       7234         982   AT&T 
  701     1345       8611         961   UUNET Technologies, Inc. 
 1239      939       3081         655   Sprint 
 3356      839      10954         676   Level 3 Communications, LLC 
 6197      735        443         271   BellSouth Network Solutions, 
  209      717       3531         503   Qwest 
18566      691        192           9   Covad Communications 
 4323      690        543         203   Time Warner Communications, I
20115      616        343         339   Charter Communications 
 6198      546        354         196   BellSouth Network Solutions, 
  852      505       1123         400   Telus Advanced Communications
 7066      498        206         270   Virginia Polytechnic Institut
 7843      493        582         121   Adelphia Corp. 
 7132      467       7834         321   Southwestern Bell Internet Se
 2386      432        579         230   AT&T Data Communications Serv
  690      397         58         267   Merit Network 
 4355      397        323         103   EarthLink, Inc. 
19029      387        168         248   New Edge Networks 
27364      382         28          23   Armstrong Cable Services 
  376      381        359         114   Reseau Interordinateurs Scien

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      678       2052         564   UUNET - Commercial IP service
 3301      336       1178         315   TeliaNet Sweden
 3320      286       1965         234   Deutsche Telekom AG
 8220      264        411         252   COLT Internet - International
  680      242       2027         238   DFN-IP service G-WiN
  719      233        288         105   LANLINK autonomous system
 1257      229        506         190   SWIPnet Swedish IP Network
13083      216         51           8   Mannesmann Datenverarbeitung 
 3246      191        447         189   Song Networks
  786      175       1826         175   The JANET IP Service
 8708      172        111         162   Romania Data Systems S.A.
 5515      169        762         135   Sonera Solution Autonomous Sy
25186      165        185         108   France Telecom Transpac's Tra
 3215      163        800          77   France Telecom Transpac
 5400      151        223         134   BT Ignite European Backbone
 3303      148      37418         137   Swisscom Ltd
 6746      128         19         112   Dynamic Network Technologies,
 3269      125       1037          65   TELECOM ITALIA
12302      122         18          29   MobiFon S.A.
 2856      117       1294         107   BTnet UK Regional network

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      361        121          64   ImpSat
 8151      260        384         128   UniNet S.A. de C.V. 
11172      206         77          43   Servicios Alestra S.A de C.V 
16814      156         11           6   NSS, S.A. 
 6503      140        204          94   AVANTEL, S.A. 
 7303      136         51          31   Telecom Argentina Stet-France
 6505      131         90          91   Global One Communicaoes Ltda 
 6147      124         78          20   Telefonica Del Peru 
11556       88         73          25   Cable-Wireless Panama 
11992       79         25          29   Integrated Systems 
15311       79         18          38   Telefonica Empresas 
 6535       78          5          20   Chilesat Servicios  Empresari
 4270       71         18           9   Red de Interconexion Universi
11311       69          7          17   Sinectis S.A. 
 7080       66          4           2   Electronica y Comunicaciones 
14420       64          4          25   ANDINATEL S.A. 
 8065       62         16          23   Empresas Publicas de Medellin
27699       62        168          15   TELECOMUNICACOES DE SAO PAULO
 5639       61          7          12   Telecommunications Services o
10292       61          6          28   TELECOMMUNICATIONS OF JAMAICA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      254        632         219   The Internet Solution 
 5536      105          8           3   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       90        272          80   The Internetworking Company o
 2561       58          6           3   Egyptian Universities Network
11845       36          9          11   Data Pro Business Online 
 3208       32          2           1   ARN Network
 9129       31          3           4   UUNET Kenya
16637       25          9          18   Johnnic e-Ventures 
 5713       24         93          22   Telkom SA Ltd 
12455       24          4           2   Jambonet Autonomous system
24835       23         18           6   RAYA Telecom - Egypt
 6713       22         38           9   Itissalat Al-MAGHRIB
 8524       19          2           4   AUCEGYPT Autonomous System
10798       18          1          12   Standard Bank of South Africa
15706       16          2           3   Sudatel Internet Exchange Aut
15808       16          1           7   Communication Solutions Ltd i
12258       15          3          10   Vodacom Internet Company 
17148       14          1           8   First National Bank 
 8346       13          6          12   SONATEL-AS Autonomous System

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

  ASN   No of nets  Net Savings Description
18566       691         682      Covad Communications 
 4134       669         551      Data Communications Bureau
 4323       690         487      Time Warner Communications, I
 6197       735         464      BellSouth Network Solutions, 
  701      1345         384      UUNET Technologies, Inc. 
 7843       493         372      Adelphia Corp. 
27364       382         359      Armstrong Cable Services 
 6198       546         350      BellSouth Network Solutions, 
 5668       346         331      Century Telephone 
 9583       350         326      Satyam Infoway Ltd.,
22909       344         323      Comcast Cable Corporation 
22773       347         311      Cox Communications, Inc. Atla
 4755       361         302      Videsh Sanchar Nigam Ltd. Aut
 6140       361         297      ImpSat
 4355       397         294      EarthLink, Inc. 
 1239       939         284      Sprint 
 6347       365         284      SAVVIS Communications Corpora
20115       616         277      Charter Communications 
  376       381         267      Reseau Interordinateurs Scien
 9443       347         266      Primus Telecommunications

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

Bad AS  Designation  Network              Transit AS  Description
65412   PRIVATE       64.70.42.0/24         3561       Cable & Wireless USA
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
18412   UNALLOCATED   211.77.0.0/19         9674       Far EastTone Telecom
65412   PRIVATE       211.161.0.0/21        4847       China Networks Inter
65412   PRIVATE       211.161.8.0/21        4847       China Networks Inter
65412   PRIVATE       211.161.32.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.34.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.36.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.38.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.40.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.42.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.44.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.46.0/23       4847       China Networks Inter
65412   PRIVATE       211.161.80.0/21       4847       China Networks Inter
65412   PRIVATE       211.161.88.0/21       4847       China Networks Inter
65412   PRIVATE       220.113.0.0/21        4847       China Networks Inter
65412   PRIVATE       220.113.8.0/21        4847       China Networks Inter
65412   PRIVATE       220.113.16.0/21       4847       China Networks Inter
65412   PRIVATE       220.113.24.0/21       4847       China Networks Inter
65412   PRIVATE       220.113.32.0/21       4847       China Networks Inter
65412   PRIVATE       220.113.40.0/21       4847       China Networks Inter

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

Network            Origin AS  Description
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
192.43.230.0/24       4738     South Australian Academic Res
192.44.0.0/19          702     UUNET - Commercial IP service
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 
192.136.79.0/24        719     LANLINK autonomous system
192.172.0.0/19         568     DISO-UNRRA 

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:28       /9:4       /10:6       /11:15      /12:59      
/13:106     /14:290     /15:508     /16:7589    /17:1897    /18:3484    
/19:9003    /20:9361    /21:6829    /22:9642    /23:11207   /24:73139   
/25:195     /26:285     /27:160     /28:28      /29:8       /30:16      
/31:0       /32:15      

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

  ASN   No of nets  Total ann.   Description
18566      674           691      Covad Communications 
 6197      576           735      BellSouth Network Solutions, 
 7018      498          1402      AT&T 
 3356      452           839      Level 3 Communications, LLC 
  702      413           678      UUNET - Commercial IP service
 6198      394           546      BellSouth Network Solutions, 
 7066      392           498      Virginia Polytechnic Institut
20115      382           616      Charter Communications 
  701      376          1345      UUNET Technologies, Inc. 
27364      375           382      Armstrong Cable Services 
  690      360           397      Merit Network 
 1239      335           939      Sprint 
 5668      305           346      Century Telephone 
 4766      255           430      Korea Internet Exchange for "
19029      255           387      New Edge Networks 
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      234           286      Deutsche Telekom AG
 6517      225           247      Yipes Communications, Inc. 
 6386      223           249      bellsouth.net, inc. 
13609      220           260      Choice One Communications Inc

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

   4:3        12:776      13:1        15:4        16:1        17:3      
  20:6        24:827      32:84       38:51       40:26       44:2      
  55:1        56:1        57:13       61:378      62:466      63:1830   
  64:1848     65:1913     66:2352     67:277      68:615      69:422    
  80:478      81:221      82:86       83:8       128:140     129:255    
 130:40      131:79      132:16      134:175     135:16      136:185    
 137:107     138:151     139:42      140:152     141:135     142:106    
 143:48      144:78      145:37      146:285     147:75      148:366    
 149:85      150:124     151:62      152:215     153:60      154:1      
 155:126     156:66      157:50      158:149     159:140     160:51     
 161:54      162:376     163:74      164:329     165:162     166:99     
 167:212     168:188     169:106     170:296     171:8       192:5536   
 193:2590    194:2000    195:1329    196:525     198:3629    199:2955   
 200:3163    201:7       202:4452    203:5462    204:2991    205:1998   
 206:2267    207:2596    208:2375    209:2850    210:1113    211:463    
 212:900     213:1079    214:25      215:26      216:3300    217:853    
 218:148     219:97      220:171     221:19      222:6      

End of report



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