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Weekly Routing Table Report
From: Routing Table Analysis <cscora () apnic net>
Date: Sat, 14 Jan 2006 04:06:46 +1000 (EST)


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 14 Jan, 2006

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

BGP routing table entries examined:                              178241
    Prefixes after maximum aggregation:                          100088
    Unique aggregates announced to Internet:                      86613
Total ASes present in the Internet Routing Table:                 21314
Origin-only ASes present in the Internet Routing Table:           18535
Origin ASes announcing only one prefix:                            8793
Transit ASes present in the Internet Routing Table:                2779
Transit-only ASes present in the Internet Routing Table:             70
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      25
Prefixes from unregistered ASNs in the Routing Table:                 6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1479800576
    Equivalent to 88 /8s, 51 /16s and 247 /24s
    Percentage of available address space announced:               39.9
    Percentage of allocated address space announced:               58.9
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       86075

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

Prefixes being announced by APNIC Region ASes:                    37421
    Total APNIC prefixes after maximum aggregation:               15858
Prefixes being announced from the APNIC address blocks:           35204
    Unique aggregates announced from the APNIC address blocks:    17260
APNIC Region origin ASes present in the Internet Routing Table:    2459
APNIC Region origin ASes announcing only one prefix:                695
APNIC Region transit ASes present in the Internet Routing Table:    380
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              210417088
    Equivalent to 12 /8s, 138 /16s and 181 /24s
    Percentage of available APNIC address space announced:         65.8

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911
APNIC Address Blocks   58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
                       210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     93767
    Total ARIN prefixes after maximum aggregation:                56293
Prefixes being announced from the ARIN address blocks:            73107
    Unique aggregates announced from the ARIN address blocks:     28060
ARIN Region origin ASes present in the Internet Routing Table:    10429
ARIN Region origin ASes announcing only one prefix:                3880
ARIN Region transit ASes present in the Internet Routing Table:     964
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               282273280
    Equivalent to 16 /8s, 211 /16s and 38 /24s
    Percentage of available ARIN address space announced:          70.1

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  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, 29696-30719, 31744-33791
                       35840-36863
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
                       198/7, 204/6, 208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     35082
    Total RIPE prefixes after maximum aggregation:                23659
Prefixes being announced from the RIPE address blocks:            32064
    Unique aggregates announced from the RIPE address blocks:     21437
RIPE Region origin ASes present in the Internet Routing Table:     7550
RIPE Region origin ASes announcing only one prefix:                3961
RIPE Region transit ASes present in the Internet Routing Table:    1246
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          25
Number of RIPE addresses announced to Internet:               229596032
    Equivalent to 13 /8s, 175 /16s and 91 /24s
    Percentage of available RIPE address space announced:          68.4

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks    62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   10127
    Total LACNIC prefixes after maximum aggregation:               3418
Prefixes being announced from the LACNIC address blocks:           8320
    Unique aggregates announced from the LACNIC address blocks:    4826
LACNIC Region origin ASes present in the Internet Routing Table:    662
LACNIC Region origin ASes announcing only one prefix:               213
LACNIC Region transit ASes present in the Internet Routing Table:   124
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC addresses announced to Internet:              23623168
    Equivalent to 1 /8s, 104 /16s and 118 /24s
    Percentage of available LACNIC address space announced:        35.2

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  189/8, 190/8, 200/7

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

Prefixes being announced by AfriNIC Region ASes:                   1838
    Total AfriNIC prefixes after maximum aggregation:               860
Prefixes being announced from the AfriNIC address blocks:          1197
    Unique aggregates announced from the AfriNIC address blocks:    843
AfriNIC Region origin ASes present in the Internet Routing Table:   143
AfriNIC Region origin ASes announcing only one prefix:               44
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2972672
    Equivalent to 0 /8s, 45 /16s and 92 /24s
    Percentage of available AfriNIC address space announced:        8.9

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      995       6450         206   CHINANET-BACKBONE
 9583      837        109          14   Sify Limited
 4755      777        258          63   Videsh Sanchar Nigam Ltd. Aut
 4766      717       3929         300   Korea Telecom (KIX)
 1221      665       1364         471   Telstra Pty Ltd
 7545      514        108          70   TPG Internet Pty Ltd
 9498      495        211          68   BHARTI BT INTERNET LTD.
17676      477       6901         102   Softbank BB Corp.
17488      436         26           9   Hathway IP Over Cable Interne
 9443      399         89          85   Primus Telecommunications
 4802      356         74         160   Wantree Development
 2907      338       1763         315   SINET Japan
 9929      332        217          50   China Netcom Corp.
 7474      329        227         227   SingTel Optus Pty Ltd
18101      326         68          23   Reliance Infocom Ltd Internet
17974      310         73          36   PT TELEKOMUNIKASI INDONESIA
17557      306         24         160   Pakistan Telecom
 4780      283        226          16   Digital United Inc.
 9837      271         78         169   Powertel Ltd
 9800      256        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1471       6297         959   AT&T WorldNet Services
 4323     1202        723         235   Time Warner Telecom
  174     1042       5825         959   Cogent Communications
  721     1031      21938         308   DLA Systems Automation Center
 6197      970        435         505   BellSouth Network Solutions, 
  701      969       8099         812   UUNET Technologies, Inc. 
18566      891        272           8   Covad Communications 
 2386      876        500         684   AT&T Data Communications Serv
 1239      850       2805         606   Sprint 
  209      661       3606         529   Qwest 
20115      657        537         339   Charter Communications 
11492      642         89          12   Cable One 
22773      606       1478          33   Cox Communications, Inc.
19262      596       1719         146   Verizon Global Networks 
  852      570       1092         379   Telus Advanced Communications
  855      563        243          65   Canadian Research Network 
19916      563         49          54   OLM LLC 
 6478      528       1454         291   AT&T Worldnet Services 
 3602      522        127         106   Sprint Canada, Inc. 
 3356      518      10601         398   Level 3 Communications, LLC 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      587       1953         465   UUNET - Commercial IP service
 3352      303       1500          34   Ibernet, Internet Access Netw
 3301      302       1071         288   TeliaNet Sweden
 3320      285       3485         239   Deutsche Telekom AG
 8220      274        474         268   COLT Telecommunications
  680      244       2024         238   DFN-IP service G-WiN
 3246      227        487         217   Song Networks
 8708      221        274         205   Romania Data Systems S.A.
 6746      211         52         183   Dynamic Network Technologies,
 1257      189        712         169   SWIPnet Swedish IP Network
 3269      185       1925          70   TELECOM ITALIA
 5515      180        840         127   Sonera Solution Autonomous Sy
  786      173       1794         173   The JANET IP Service
 8866      173         37          11   Bulgarian Telecommunication C
 5400      168        328         137   BT Ignite European Backbone
24863      166         38           9   LINKdotNET AS number
 3215      163       1326          82   France Telecom Transpac
 6830      162        669          33   UPC Distribution Services
 3300      159        169          90   AUCS Communications Services 
12479      157        322           5   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      545        808         211   UniNet S.A. de C.V. 
22047      380        141          43   VTR PUNTO NET S.A. 
16814      295         18           7   NSS, S.A. 
11172      294        109          76   Servicios Alestra S.A de C.V 
14117      184         11           6   Telefonica del Sur S.A. 
13999      175         52           9   Mega Cable S.A. de C.V. 
 7303      153         73          18   Telecom Argentina Stet-France
 6147      150        118          21   Telefonica Del Peru 
11556      130         64           3   Cable-Wireless Panama 
19169      123          8          30   Telconet 
10481      121         48           8   Prima S.A. 
 6503      115        148          76   AVANTEL, S.A. 
21826      113         14          19   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      107         88          80   Global One Communicaoes Ltda 
11311      101          8          14   Sinectis S.A. 
18822       99          8          10   TELEFONICA MANQUEHUE 
 7315       96          6           3   Grupo Rey Moreno 
14522       95         12           8   SatNet S.A. 
 4270       93         17           9   Red de Interconexion Universi

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      273        812         230   The Internet Solution 
 8452      142         60           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
15475      101         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
 6713       71         71          10   Itissalat Al-MAGHRIB
24835       67         34           6   RAYA Telecom - Egypt
20928       61         16           2   Noor Advanced Technologies AS
 5713       39        167          35   Telkom SA Ltd 
33774       35          5          26   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
23889       25          7          10   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
16637       22         10          20   Johnnic e-Ventures 
21280       22          4           4   Swift Global Kenya Ltd.Is an 
12455       18          6           5   Jambonet Autonomous system
12258       17          3          11   Vodacom Internet Company 
15808       17          2           2   Communication Solutions Ltd i

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

  ASN   No of nets  Net Savings Description
 4323      1202         967      Time Warner Telecom
18566       891         883      Covad Communications 
 9583       837         823      Sify Limited
 4134       995         789      CHINANET-BACKBONE
  721      1031         723      DLA Systems Automation Center
 4755       777         714      Videsh Sanchar Nigam Ltd. Aut
11492       642         630      Cable One 
22773       606         573      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       563         498      Canadian Research Network 
 5668       514         490      CenturyTel Internet Holdings,
 6197       970         465      BellSouth Network Solutions, 
19262       596         450      Verizon Global Networks 
 7545       514         444      TPG Internet Pty Ltd
 9498       495         427      BHARTI BT INTERNET LTD.
17488       436         427      Hathway IP Over Cable Interne
 4766       717         417      Korea Telecom (KIX)
 3602       522         416      Sprint Canada, Inc. 
17676       477         375      Softbank BB Corp.
 6467       399         353      E.Spire Communications, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
38976   UNALLOCATED   62.192.224.0/19      21166       Satgate autonomous s
38976   UNALLOCATED   62.192.232.0/24      21166       Satgate autonomous s
38972   UNALLOCATED   80.251.144.0/21       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.151.0/24       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.152.0/23       6828       Ekaterinburg Telegra
29544   UNALLOCATED   82.151.64.0/19       12956       Telefonica Data Auto

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

Network            Origin AS  Description
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
192.43.230.0/24       7575     Australian Academic and Rease
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.172.0.0/19         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        /8:18       /9:5       /10:8       /11:20      /12:87      
/13:196     /14:346     /15:677     /16:8640    /17:2950    /18:4967    
/19:11193   /20:12345   /21:10557   /22:13631   /23:14839   /24:96822   
/25:306     /26:250     /27:199     /28:63      /29:26      /30:54      
/31:3       /32:39      

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

  ASN   No of nets  Total ann.   Description
18566      874           891      Covad Communications 
 6197      784           970      BellSouth Network Solutions, 
 7018      745          1471      AT&T WorldNet Services
 9583      658           837      Sify Limited
11492      633           642      Cable One 
 2386      610           876      AT&T Data Communications Serv
 4323      577          1202      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      517           717      Korea Telecom (KIX)
  855      435           563      Canadian Research Network 
 5668      403           514      CenturyTel Internet Holdings,
 7011      399           465      Citizens Utilities 
  702      371           587      UUNET - Commercial IP service
 1239      363           850      Sprint 
 6198      358           493      BellSouth Network Solutions, 
 6517      335           362      Yipes Communications, Inc. 
15270      330           357      PaeTec.net -a division of Pae
22773      313           606      Cox Communications, Inc.
13609      290           332      Choice One Communications Inc
  701      280           969      UUNET Technologies, Inc. 

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

   4:3         8:43       12:1630     13:1        15:11       16:3      
  17:3        18:4        20:42       24:719      25:1        30:2      
  32:67       38:186      40:54       44:3        47:3        52:4      
  55:1        56:3        57:34       58:113      59:155      60:179    
  61:817      62:779      63:1886     64:2942     65:2150     66:2967   
  67:586      68:696      69:1368     70:272      71:45       72:566    
  73:19       80:726      81:590      82:506      83:352      84:339    
  85:404      86:263      87:133      88:17      124:1       125:173    
 128:148     129:172     130:101     131:309     132:32      133:1      
 134:151     135:46      136:169     137:65      138:179     139:89     
 140:447     141:136     142:404     143:146     144:228     145:39     
 146:311     147:134     148:327     149:188     150:113     151:72     
 152:115     153:98      154:6       155:183     156:91      157:119    
 158:151     159:174     160:87      161:68      162:250     163:175    
 164:168     165:171     166:147     167:237     168:478     169:139    
 170:309     171:12      192:5752    193:3348    194:2463    195:1718   
 196:721     198:3903    199:3275    200:4154    201:550     202:6385   
 203:6684    204:3823    205:2082    206:2427    207:2918    208:2010   
 209:3451    210:1840    211:794     212:1238    213:1444    214:318    
 215:40      216:3805    217:1150    218:230     219:134     220:641    
 221:333     222:145    

End of report


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