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Weekly Routing Table Report
From: Routing Table Analysis <cscora () apnic net>
Date: Sat, 7 Jan 2006 04:08:52 +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 07 Jan, 2006

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

BGP routing table entries examined:                              177730
    Prefixes after maximum aggregation:                           99948
    Unique aggregates announced to Internet:                      86379
Total ASes present in the Internet Routing Table:                 21282
Origin-only ASes present in the Internet Routing Table:           18508
Origin ASes announcing only one prefix:                            8776
Transit ASes present in the Internet Routing Table:                2774
Transit-only ASes present in the Internet Routing Table:             71
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:                   1477940032
    Equivalent to 88 /8s, 23 /16s and 147 /24s
    Percentage of available address space announced:               39.9
    Percentage of allocated address space announced:               60.0
    Percentage of available address space allocated:               66.4
Total number of prefixes smaller than registry allocations:       85680

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

Prefixes being announced by APNIC Region ASes:                    37230
    Total APNIC prefixes after maximum aggregation:               15820
Prefixes being announced from the APNIC address blocks:           35018
    Unique aggregates announced from the APNIC address blocks:    17190
APNIC Region origin ASes present in the Internet Routing Table:    2454
APNIC Region origin ASes announcing only one prefix:                696
APNIC Region transit ASes present in the Internet Routing Table:    379
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              210093248
    Equivalent to 12 /8s, 133 /16s and 196 /24s
    Percentage of available APNIC address space announced:         78.0

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:                     93656
    Total ARIN prefixes after maximum aggregation:                56229
Prefixes being announced from the ARIN address blocks:            72981
    Unique aggregates announced from the ARIN address blocks:     27906
ARIN Region origin ASes present in the Internet Routing Table:    10418
ARIN Region origin ASes announcing only one prefix:                3873
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:               281518336
    Equivalent to 16 /8s, 199 /16s and 161 /24s
    Percentage of available ARIN address space announced:          69.9

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:                     34867
    Total RIPE prefixes after maximum aggregation:                23618
Prefixes being announced from the RIPE address blocks:            31867
    Unique aggregates announced from the RIPE address blocks:     21439
RIPE Region origin ASes present in the Internet Routing Table:     7533
RIPE Region origin ASes announcing only one prefix:                3949
RIPE Region transit ASes present in the Internet Routing Table:    1239
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          25
Number of RIPE addresses announced to Internet:               229011648
    Equivalent to 13 /8s, 166 /16s and 112 /24s
    Percentage of available RIPE address space announced:          68.3

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:                   10115
    Total LACNIC prefixes after maximum aggregation:               3418
Prefixes being announced from the LACNIC address blocks:           8332
    Unique aggregates announced from the LACNIC address blocks:    4819
LACNIC Region origin ASes present in the Internet Routing Table:    660
LACNIC Region origin ASes announcing only one prefix:               211
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:              23553280
    Equivalent to 1 /8s, 103 /16s and 101 /24s
    Percentage of available LACNIC address space announced:        35.1

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:                   1856
    Total AfriNIC prefixes after maximum aggregation:               863
Prefixes being announced from the AfriNIC address blocks:          1209
    Unique aggregates announced from the AfriNIC address blocks:    857
AfriNIC Region origin ASes present in the Internet Routing Table:   145
AfriNIC Region origin ASes announcing only one prefix:               47
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:              2972416
    Equivalent to 0 /8s, 45 /16s and 91 /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       6453         206   CHINANET-BACKBONE
 9583      836         77          14   Sify Limited
 4755      770        258          64   Videsh Sanchar Nigam Ltd. Aut
 4766      705       3930         298   Korea Telecom (KIX)
 1221      667       1364         475   Telstra Pty Ltd
 7545      515        108          71   TPG Internet Pty Ltd
17676      478       6901         102   Softbank BB Corp.
17488      436         26           9   Hathway IP Over Cable Interne
 9498      401        211          71   BHARTI BT INTERNET LTD.
 9443      399         89          85   Primus Telecommunications
 4802      355         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
17557      307         24         161   Pakistan Telecom
18101      302         68          24   Reliance Infocom Ltd Internet
17974      301         72          31   PT TELEKOMUNIKASI INDONESIA
 4780      282        226          16   Digital United Inc.
 9837      270         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     1441       6311         942   AT&T WorldNet Services
 4323     1200        723         235   Time Warner Telecom
  174     1041       5825         959   Cogent Communications
  721     1031      21938         309   DLA Systems Automation Center
  701      973       8117         816   UUNET Technologies, Inc. 
 6197      969        435         505   BellSouth Network Solutions, 
 2386      913        516         685   AT&T Data Communications Serv
18566      888        240           7   Covad Communications 
 1239      846       2803         600   Sprint 
  209      660       3606         528   Qwest 
20115      656        536         338   Charter Communications 
11492      639         89          11   Cable One 
22773      601       1478          33   Cox Communications, Inc.
19262      592       1703         145   Verizon Global Networks 
  852      570       1092         379   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      562        243          65   Canadian Research Network 
 3602      523        127         106   Sprint Canada, Inc. 
 6478      523       1444         287   AT&T Worldnet Services 
 3356      519      10617         399   Level 3 Communications, LLC 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      589       1954         467   UUNET - Commercial IP service
 3301      304       1071         290   TeliaNet Sweden
 3320      285       3486         240   Deutsche Telekom AG
 8220      274        474         268   COLT Telecommunications
  680      244       2024         238   DFN-IP service G-WiN
 3246      227        486         220   Song Networks
 8708      222        274         206   Romania Data Systems S.A.
 6746      205         52         177   Dynamic Network Technologies,
 1257      189        712         169   SWIPnet Swedish IP Network
 3269      184       1893          69   TELECOM ITALIA
 5515      180        840         127   Sonera Solution Autonomous Sy
  786      173       1794         173   The JANET IP Service
 8866      172         37          11   Bulgarian Telecommunication C
 5400      166        328         135   BT Ignite European Backbone
24863      166         38           9   LINKdotNET AS number
 3215      162       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
25186      150        211         105   France Telecom Transpac's Tra

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      542        776         214   UniNet S.A. de C.V. 
22047      380        141          43   VTR PUNTO NET S.A. 
11172      293        109          77   Servicios Alestra S.A de C.V 
16814      293         18           6   NSS, S.A. 
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      126          8          29   Telconet 
10481      121         48           8   Prima S.A. 
 6503      115        148          77   AVANTEL, S.A. 
21826      113         14          19   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      107         88          80   Global One Communicaoes Ltda 
11311       99          8          10   Sinectis S.A. 
18822       99          8          10   TELEFONICA MANQUEHUE 
14522       97         12           8   SatNet S.A. 
 7315       96          6           3   Grupo Rey Moreno 
 4270       93         17           9   Red de Interconexion Universi

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      272        812         230   The Internet Solution 
 8452      147         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       65         34           6   RAYA Telecom - Egypt
20928       61         16           2   Noor Advanced Technologies AS
 5713       39        167          35   Telkom SA Ltd 
33774       33          4          24   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
23889       25          7          10   MAURITIUS TELECOM
21280       24          4           4   Swift Global Kenya Ltd.Is an 
 8524       23          1           4   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
16637       22         10          20   Johnnic e-Ventures 
 8346       19         14          18   SONATEL-AS Autonomous System
12455       19          6           5   Jambonet Autonomous system
12258       17          3          11   Vodacom Internet Company 

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

  ASN   No of nets  Net Savings Description
 4323      1200         965      Time Warner Telecom
18566       888         881      Covad Communications 
 9583       836         822      Sify Limited
 4134       995         789      CHINANET-BACKBONE
  721      1031         722      DLA Systems Automation Center
 4755       770         706      Videsh Sanchar Nigam Ltd. Aut
11492       639         628      Cable One 
22773       601         568      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       562         497      Canadian Research Network 
 5668       511         487      CenturyTel Internet Holdings,
 6197       969         464      BellSouth Network Solutions, 
19262       592         447      Verizon Global Networks 
 7545       515         444      TPG Internet Pty Ltd
17488       436         427      Hathway IP Over Cable Interne
 3602       523         417      Sprint Canada, Inc. 
 4766       705         407      Korea Telecom (KIX)
17676       478         376      Softbank BB Corp.
 6467       402         356      E.Spire Communications, Inc. 
  812       370         343      Rogers WAVE 

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      28947       CJSC InT, Ekaterinbu
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     /15:670     /16:8637    /17:2943    /18:4955    
/19:11189   /20:12306   /21:10503   /22:13598   /23:14742   /24:96569   
/25:344     /26:267     /27:199     /28:34      /29:12      /30:45      
/31:3       /32:34      

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

  ASN   No of nets  Total ann.   Description
18566      872           888      Covad Communications 
 6197      784           969      BellSouth Network Solutions, 
 7018      719          1441      AT&T WorldNet Services
 9583      657           836      Sify Limited
 2386      636           913      AT&T Data Communications Serv
11492      630           639      Cable One 
 4323      575          1200      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      508           705      Korea Telecom (KIX)
  855      434           562      Canadian Research Network 
 7011      403           469      Citizens Utilities 
 5668      400           511      CenturyTel Internet Holdings,
  702      373           589      UUNET - Commercial IP service
 1239      365           846      Sprint 
 6198      355           498      BellSouth Network Solutions, 
 6517      331           357      Yipes Communications, Inc. 
15270      329           356      PaeTec.net -a division of Pae
22773      311           601      Cox Communications, Inc.
13609      290           332      Choice One Communications Inc
  701      283           973      UUNET Technologies, Inc. 

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

   4:3         8:42       12:1628     13:1        15:11       16:3      
  17:3        18:3        20:42       24:715      25:1        30:2      
  32:68       38:186      40:54       44:3        47:3        52:4      
  55:1        56:3        57:33       58:110      59:120      60:174    
  61:770      62:781      63:1896     64:2936     65:2147     66:2997   
  67:594      68:696      69:1349     70:264      71:41       72:538    
  73:15       80:692      81:594      82:506      83:349      84:336    
  85:402      86:248      87:124     125:145     128:151     129:169    
 130:101     131:304     132:33      133:1       134:151     135:45     
 136:162     137:64      138:178     139:92      140:444     141:136    
 142:403     143:205     144:227     145:39      146:310     147:135    
 148:328     149:188     150:109     151:71      152:115     153:98     
 154:6       155:183     156:90      157:119     158:152     159:175    
 160:87      161:67      162:247     163:177     164:167     165:170    
 166:148     167:237     168:473     169:142     170:312     171:12     
 192:5743    193:3349    194:2460    195:1702    196:735     198:3896   
 199:3263    200:4173    201:547     202:6380    203:6671    204:3809   
 205:2095    206:2409    207:2918    208:2011    209:3455    210:1855   
 211:791     212:1242    213:1414    214:317     215:40      216:3827   
 217:1158    218:234     219:131     220:619     221:330     222:139    


End of report


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