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Weekly Routing Table Report

  • From: Routing Table Analysis
  • Date: Fri Dec 09 13:13:10 2005

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 10 Dec, 2005

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

BGP routing table entries examined:                              176382
    Prefixes after maximum aggregation:                           99292
    Unique aggregates announced to Internet:                      85551
Total ASes present in the Internet Routing Table:                 21109
Origin-only ASes present in the Internet Routing Table:           18376
Origin ASes announcing only one prefix:                            8708
Transit ASes present in the Internet Routing Table:                2733
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      20
Prefixes from unregistered ASNs in the Routing Table:                10
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1487247552
    Equivalent to 88 /8s, 165 /16s and 152 /24s
    Percentage of available address space announced:               40.1
    Percentage of allocated address space announced:               60.4
    Percentage of available address space allocated:               66.4
Total number of prefixes smaller than registry allocations:       84709

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

Prefixes being announced by APNIC Region ASes:                    37050
    Total APNIC prefixes after maximum aggregation:               15698
Prefixes being announced from the APNIC address blocks:           34782
    Unique aggregates announced from the APNIC address blocks:    16957
APNIC Region origin ASes present in the Internet Routing Table:    2433
APNIC Region origin ASes announcing only one prefix:                701
APNIC Region transit ASes present in the Internet Routing Table:    367
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              208250048
    Equivalent to 12 /8s, 105 /16s and 164 /24s
    Percentage of available APNIC address space announced:         77.3

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, 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:                     93025
    Total ARIN prefixes after maximum aggregation:                56083
Prefixes being announced from the ARIN address blocks:            72439
    Unique aggregates announced from the ARIN address blocks:     27647
ARIN Region origin ASes present in the Internet Routing Table:    10395
ARIN Region origin ASes announcing only one prefix:                3871
ARIN Region transit ASes present in the Internet Routing Table:     958
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               278863872
    Equivalent to 16 /8s, 159 /16s and 32 /24s
    Percentage of available ARIN address space announced:          69.3

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:                     34544
    Total RIPE prefixes after maximum aggregation:                23346
Prefixes being announced from the RIPE address blocks:            31538
    Unique aggregates announced from the RIPE address blocks:     21154
RIPE Region origin ASes present in the Internet Routing Table:     7406
RIPE Region origin ASes announcing only one prefix:                3881
RIPE Region transit ASes present in the Internet Routing Table:    1225
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               226658368
    Equivalent to 13 /8s, 130 /16s and 136 /24s
    Percentage of available RIPE address space announced:          67.5

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:                    9937
    Total LACNIC prefixes after maximum aggregation:               3316
Prefixes being announced from the LACNIC address blocks:           8216
    Unique aggregates announced from the LACNIC address blocks:    4798
LACNIC Region origin ASes present in the Internet Routing Table:    657
LACNIC Region origin ASes announcing only one prefix:               209
LACNIC Region transit ASes present in the Internet Routing Table:   122
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              22984448
    Equivalent to 1 /8s, 94 /16s and 183 /24s
    Percentage of available LACNIC address space announced:        34.2

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:                   1820
    Total AfriNIC prefixes after maximum aggregation:               849
Prefixes being announced from the AfriNIC address blocks:          1172
    Unique aggregates announced from the AfriNIC address blocks:    831
AfriNIC Region origin ASes present in the Internet Routing Table:   144
AfriNIC Region origin ASes announcing only one prefix:               46
AfriNIC Region transit ASes present in the Internet Routing Table:   23
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2892800
    Equivalent to 0 /8s, 44 /16s and 36 /24s
    Percentage of available AfriNIC address space announced:        8.6

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     1006       6463         203   CHINANET-BACKBONE
 9583      836         77          12   Sify Limited
 4755      749        259          72   Videsh Sanchar Nigam Ltd. Aut
 1221      671       1366         482   Telstra Pty Ltd
 4766      653       3927         287   Korea Telecom (KIX)
 7545      510        108          70   TPG Internet Pty Ltd
17676      470       6819         100   Softbank BB Corp.
17488      430         26          11   Hathway IP Over Cable Interne
 9498      412        216          67   BHARTI BT INTERNET LTD.
 9443      401         88          86   Primus Telecommunications
 4802      346         74         159   Wantree Development
 2907      340       1764         317   SINET Japan
 9929      331        217          49   China Netcom Corp.
17557      329         24         160   Pakistan Telecom
18302      329        152          25   SK Global co., Ltd
 7474      325        225         224   SingTel Optus Pty Ltd
17974      280         65          16   PT TELEKOMUNIKASI INDONESIA
18101      280         68          19   Reliance Infocom Ltd Internet
 9837      274         78         173   Powertel Ltd
 9800      255        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1471       6305         967   AT&T WorldNet Services
 4323     1190        706         231   Time Warner Telecom
  174     1058       5827         976   Cogent Communications
  721     1054      21922         308   DLA Systems Automation Center
  701      987       8118         830   UUNET Technologies, Inc. 
 6197      971        434         505   BellSouth Network Solutions, 
 2386      915        531         688   AT&T Data Communications Serv
18566      882        240           7   Covad Communications 
 1239      839       2800         593   Sprint 
20115      657        535         343   Charter Communications 
  209      656       3606         520   Qwest 
11492      632         89          11   Cable One 
22773      590       1477          29   Cox Communications, Inc.
  852      573       1092         381   Telus Advanced Communications
19262      569       1608         140   Verizon Global Networks 
  855      564        247          66   Canadian Research Network 
19916      563         49          54   OLM LLC 
 3602      532        126         103   Sprint Canada, Inc. 
 3356      531      10619         411   Level 3 Communications, LLC 
 6478      503       1434         281   AT&T Worldnet Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      603       1958         477   UUNET - Commercial IP service
 3301      306       1085         292   TeliaNet Sweden
 3320      287       3231         242   Deutsche Telekom AG
 8220      271        474         266   COLT Telecommunications
  680      244       2040         238   DFN-IP service G-WiN
 8708      233        274         215   Romania Data Systems S.A.
 3246      226        469         219   Song Networks
 6746      201         51         172   Dynamic Network Technologies,
 1257      189        712         170   SWIPnet Swedish IP Network
 3269      182       1829          68   TELECOM ITALIA
 5515      180        840         127   Sonera Solution Autonomous Sy
  786      174       1795         174   The JANET IP Service
 5400      166        317         136   BT Ignite European Backbone
 8866      163         37           9   Bulgarian Telecommunication C
 6830      161        669          33   UPC Distribution Services
 3300      159        169          93   AUCS Communications Services 
12479      157        322           5   Uni2 Autonomous System
24863      156         38           9   LINKdotNET AS number
 3215      155       1323          79   France Telecom Transpac
 9121      149        417          23   TTnet Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      393        707         168   UniNet S.A. de C.V. 
16814      295         18           7   NSS, S.A. 
11172      289        106          74   Servicios Alestra S.A de C.V 
19632      198         14           5   Metropolis Intercom S.A. 
14117      184         11           6   Telefonica del Sur S.A. 
22047      179        128           7   VTR PUNTO NET S.A. 
13999      175         52           9   Mega Cable S.A. de C.V. 
 7303      152         72          19   Telecom Argentina Stet-France
 6147      150        118          21   Telefonica Del Peru 
11664      139         22          13   Keytech SA 
11556      132         64           3   Cable-Wireless Panama 
19169      127          8          20   Telconet 
10481      121         48           8   Prima S.A. 
 6503      114        148          75   AVANTEL, S.A. 
18822      114          8          11   TELEFONICA MANQUEHUE 
 5639      112         12           9   Telecommunications Services o
21826      112         14          18   INTERCABLE 
 6505      106         88          79   Global One Communicaoes Ltda 
11311       99          8          10   Sinectis S.A. 
 4270       94         17           9   Red de Interconexion Universi

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      271        812         229   The Internet Solution 
 8452      147         44           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
15475      102         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
 6713       69         71          10   Itissalat Al-MAGHRIB
20928       61         16           2   Noor Advanced Technologies AS
24835       59         34           6   RAYA Telecom - Egypt
 5713       38        151          34   Telkom SA Ltd 
33774       33          4          24   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
 8524       23          1           4   AUCEGYPT Autonomous System
16637       23         10          21   Johnnic e-Ventures 
23889       23          5           9   MAURITIUS TELECOM
10798       22          1          13   Standard Bank of South Africa
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      1190         959      Time Warner Telecom
18566       882         875      Covad Communications 
 9583       836         824      Sify Limited
 4134      1006         803      CHINANET-BACKBONE
  721      1054         746      DLA Systems Automation Center
 4755       749         677      Videsh Sanchar Nigam Ltd. Aut
11492       632         621      Cable One 
22773       590         561      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       564         498      Canadian Research Network 
 6197       971         466      BellSouth Network Solutions, 
 5668       492         445      CenturyTel Internet Holdings,
 7545       510         440      TPG Internet Pty Ltd
19262       569         429      Verizon Global Networks 
 3602       532         429      Sprint Canada, Inc. 
17488       430         419      Hathway IP Over Cable Interne
17676       470         370      Softbank BB Corp.
 4766       653         366      Korea Telecom (KIX)
 6467       411         363      E.Spire Communications, Inc. 
 9498       412         345      BHARTI BT INTERNET LTD.

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      28947       CJSC InT, Ekaterinbu
38972   UNALLOCATED   80.251.151.0/24      28947       CJSC InT, Ekaterinbu
38972   UNALLOCATED   80.251.152.0/23      28947       CJSC InT, Ekaterinbu
24413   UNALLOCATED   202.46.32.0/19       17623       China Netcom Corp.
24408   UNALLOCATED   203.119.26.0/24       9800       CHINA UNICOM
24408   UNALLOCATED   203.119.27.0/24       9800       CHINA UNICOM
24408   UNALLOCATED   203.119.28.0/24       9800       CHINA UNICOM
24406   UNALLOCATED   203.119.29.0/24       4808       CNCGROUP IP network:

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        /8:19       /9:5       /10:8       /11:19      /12:86      
/13:190     /14:343     /15:669     /16:8614    /17:2910    /18:4916    
/19:11092   /20:12229   /21:10298   /22:13543   /23:14675   /24:95835   
/25:352     /26:271     /27:207     /28:25      /29:12      /30:30      
/31:3       /32:31      

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

  ASN   No of nets  Total ann.   Description
18566      866           882      Covad Communications 
 6197      785           971      BellSouth Network Solutions, 
 7018      726          1471      AT&T WorldNet Services
 9583      659           836      Sify Limited
 2386      637           915      AT&T Data Communications Serv
11492      623           632      Cable One 
 4323      570          1190      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      458           653      Korea Telecom (KIX)
  855      436           564      Canadian Research Network 
 7011      402           466      Citizens Utilities 
  702      386           603      UUNET - Commercial IP service
 5668      384           492      CenturyTel Internet Holdings,
 1239      364           839      Sprint 
 6198      354           493      BellSouth Network Solutions, 
15270      325           352      PaeTec.net -a division of Pae
 6517      322           347      Yipes Communications, Inc. 
22773      305           590      Cox Communications, Inc.
13609      298           340      Choice One Communications Inc
18302      298           329      SK Global co., Ltd

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

   4:3         8:40       12:1626     13:1        15:11       16:3      
  17:3        18:3        20:42       24:711      30:2        32:73     
  38:186      40:54       44:3        47:3        52:4        55:1      
  56:3        57:34       58:99       59:109      60:166      61:813    
  62:812      63:1893     64:2918     65:2141     66:2902     67:597    
  68:686      69:1340     70:246      71:38       72:482      73:8      
  80:685      81:606      82:508      83:328      84:336      85:395    
  86:222      87:115     125:137     128:150     129:167     130:100    
 131:304     132:34      133:1       134:151     135:45      136:173    
 137:63      138:175     139:76      140:447     141:146     142:404    
 143:148     144:220     145:34      146:304     147:134     148:272    
 149:187     150:109     151:72      152:115     153:94      154:5      
 155:181     156:90      157:120     158:148     159:174     160:85     
 161:74      162:242     163:176     164:184     165:180     166:147    
 167:241     168:469     169:142     170:308     171:12      192:5762   
 193:3335    194:2436    195:1666    196:714     198:3911    199:3263   
 200:4236    201:471     202:6353    203:6611    204:3835    205:2078   
 206:2430    207:2920    208:2026    209:3436    210:1779    211:804    
 212:1242    213:1387    214:313     215:39      216:3763    217:1170   
 218:226     219:128     220:544     221:331     222:135    

End of report




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