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Weekly Routing Table Report
From: Routing Table Analysis <cscora () apnic net>
Date: Sat, 4 Feb 2006 04:10:19 +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 04 Feb, 2006

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

BGP routing table entries examined:                              180632
    Prefixes after maximum aggregation:                          100801
    Unique aggregates announced to Internet:                      87940
Total ASes present in the Internet Routing Table:                 21423
Origin-only ASes present in the Internet Routing Table:           18625
Origin ASes announcing only one prefix:                            8836
Transit ASes present in the Internet Routing Table:                2798
Transit-only ASes present in the Internet Routing Table:             75
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      23
Prefixes from unregistered ASNs in the Routing Table:                 1
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1487343776
    Equivalent to 88 /8s, 167 /16s and 16 /24s
    Percentage of available address space announced:               40.1
    Percentage of allocated address space announced:               59.2
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       87709

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

Prefixes being announced by APNIC Region ASes:                    37914
    Total APNIC prefixes after maximum aggregation:               16015
Prefixes being announced from the APNIC address blocks:           35691
    Unique aggregates announced from the APNIC address blocks:    17449
APNIC Region origin ASes present in the Internet Routing Table:    2459
APNIC Region origin ASes announcing only one prefix:                686
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:                         21
Number of APNIC addresses announced to Internet:              211707872
    Equivalent to 12 /8s, 158 /16s and 103 /24s
    Percentage of available APNIC address space announced:         66.2

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:                     94993
    Total ARIN prefixes after maximum aggregation:                56485
Prefixes being announced from the ARIN address blocks:            74275
    Unique aggregates announced from the ARIN address blocks:     28409
ARIN Region origin ASes present in the Internet Routing Table:    10479
ARIN Region origin ASes announcing only one prefix:                3910
ARIN Region transit ASes present in the Internet Routing Table:     969
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               285983232
    Equivalent to 17 /8s, 11 /16s and 194 /24s
    Percentage of available ARIN address space announced:          71.0

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:                     35525
    Total RIPE prefixes after maximum aggregation:                23950
Prefixes being announced from the RIPE address blocks:            32560
    Unique aggregates announced from the RIPE address blocks:     21870
RIPE Region origin ASes present in the Internet Routing Table:     7596
RIPE Region origin ASes announcing only one prefix:                3977
RIPE Region transit ASes present in the Internet Routing Table:    1262
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               230751616
    Equivalent to 13 /8s, 192 /16s and 253 /24s
    Percentage of available RIPE address space announced:          68.8

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:                   10324
    Total LACNIC prefixes after maximum aggregation:               3474
Prefixes being announced from the LACNIC address blocks:           8523
    Unique aggregates announced from the LACNIC address blocks:    5126
LACNIC Region origin ASes present in the Internet Routing Table:    668
LACNIC Region origin ASes announcing only one prefix:               219
LACNIC Region transit ASes present in the Internet Routing Table:   121
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        23
Number of LACNIC addresses announced to Internet:              25056000
    Equivalent to 1 /8s, 126 /16s and 83 /24s
    Percentage of available LACNIC address space announced:        37.3

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:                   1871
    Total AfriNIC prefixes after maximum aggregation:               877
Prefixes being announced from the AfriNIC address blocks:          1235
    Unique aggregates announced from the AfriNIC address blocks:    872
AfriNIC Region origin ASes present in the Internet Routing Table:   146
AfriNIC Region origin ASes announcing only one prefix:               44
AfriNIC Region transit ASes present in the Internet Routing Table:   22
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              3041536
    Equivalent to 0 /8s, 46 /16s and 105 /24s
    Percentage of available AfriNIC address space announced:        9.1

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      982       6462         204   CHINANET-BACKBONE
 9583      849        109          15   Sify Limited
 4755      801        258          64   Videsh Sanchar Nigam Ltd. Aut
 4766      710       3927         301   Korea Telecom (KIX)
 1221      668       1428         476   Telstra Pty Ltd
 9498      519        211          71   BHARTI BT INTERNET LTD.
 7545      516        108          70   TPG Internet Pty Ltd
17676      480       6949         104   Softbank BB Corp.
17488      449         27           7   Hathway IP Over Cable Interne
 9443      411         94          85   Primus Telecommunications
 4802      370         75         161   Wantree Development
 2907      338       1763         315   SINET Japan
 9929      335        218          50   China Netcom Corp.
 7474      330        227         228   SingTel Optus Pty Ltd
18101      328         68          26   Reliance Infocom Ltd Internet
17974      315         77          37   PT TELEKOMUNIKASI INDONESIA
17557      311         25         161   Pakistan Telecom
 4780      282        226          16   Digital United Inc.
 9837      271         78         169   Powertel Ltd
 9800      259        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1466       6263         948   AT&T WorldNet Services
 4323     1208        720         236   Time Warner Telecom
  174     1032       5789         945   Cogent Communications
  721     1029      21970         310   DLA Systems Automation Center
 6197      987        621         458   BellSouth Network Solutions, 
  701      949       8064         792   UUNET Technologies, Inc. 
18566      901        272           8   Covad Communications 
 2386      884        501         691   AT&T Data Communications Serv
 1239      852       2792         601   Sprint 
  209      680       3606         537   Qwest 
20115      676        565         355   Charter Communications 
 6198      636        449         238   BellSouth Network Solutions, 
11492      628         81          12   Cable One 
22773      617       1478          37   Cox Communications, Inc.
19262      612       1768         149   Verizon Global Networks 
  855      573        243          65   Canadian Research Network 
  852      570       1092         379   Telus Advanced Communications
19916      563         49          54   OLM LLC 
 3602      521        127         106   Sprint Canada, Inc. 
 5668      516        143          24   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      587       1954         463   UUNET - Commercial IP service
 3301      304       1071         290   TeliaNet Sweden
 3352      303       1500          34   Ibernet, Internet Access Netw
 3320      280       3477         234   Deutsche Telekom AG
 8220      275        474         269   COLT Telecommunications
  680      242       2025         239   DFN-IP service G-WiN
 3246      228        487         219   Song Networks
 8708      222        274         206   Romania Data Systems S.A.
 6746      217         85         190   Dynamic Network Technologies,
 1257      195        712         173   SWIPnet Swedish IP Network
 3269      185       1925          70   TELECOM ITALIA
 5515      177        840         125   Sonera Solution Autonomous Sy
 8866      175         37          13   Bulgarian Telecommunication C
  786      173       1794         173   The JANET IP Service
 3215      169       1390          83   France Telecom Transpac
24863      168         38           9   LINKdotNET AS number
 5400      167        328         137   BT Ignite European Backbone
 3300      165        171          94   AUCS Communications Services 
 6830      160        669          33   UPC Distribution Services
12479      158        322           5   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      569       1048         217   UniNet S.A. de C.V. 
22047      383        142          10   VTR PUNTO NET S.A. 
11172      304        110          77   Servicios Alestra S.A de C.V 
16814      295         18           7   NSS, S.A. 
13999      187         51          26   Mega Cable S.A. de C.V. 
14117      184         11           6   Telefonica del Sur S.A. 
 7303      155         73          19   Telecom Argentina Stet-France
 6147      154        126          22   Telefonica Del Peru 
11556      130         64           3   Cable-Wireless Panama 
19169      123          8          30   Telconet 
10481      121         48           8   Prima S.A. 
 6503      118        148          79   AVANTEL, S.A. 
21826      115         15          21   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      107         88          79   Global One Communicaoes Ltda 
18822       99          8          10   TELEFONICA MANQUEHUE 
 7315       96          6           3   Grupo Rey Moreno 
19429       96         52          49   E.T.B. 
11311       95          8          23   Sinectis S.A. 
 4270       92         17           9   Red de Interconexion Universi

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      279        819         234   The Internet Solution 
 8452      159         60           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       67         71          10   Itissalat Al-MAGHRIB
20928       58         16           2   Noor Advanced Technologies AS
24835       55         34           6   RAYA Telecom - Egypt
 5713       38        166          34   Telkom SA Ltd 
33774       37          9          28   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
12455       28          6           5   Jambonet Autonomous system
23889       25          7          10   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
16637       23         10          21   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
 8346       21         14          18   SONATEL-AS Autonomous System
21280       21          4           4   Swift Global Kenya Ltd.Is an 
12258       17          3          11   Vodacom Internet Company 

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

  ASN   No of nets  Net Savings Description
 4323      1208         972      Time Warner Telecom
18566       901         893      Covad Communications 
 9583       849         834      Sify Limited
 4134       982         778      CHINANET-BACKBONE
 4755       801         737      Videsh Sanchar Nigam Ltd. Aut
  721      1029         719      DLA Systems Automation Center
11492       628         616      Cable One 
22773       617         580      Cox Communications, Inc.
 6197       987         529      BellSouth Network Solutions, 
19916       563         509      OLM LLC 
  855       573         508      Canadian Research Network 
 5668       516         492      CenturyTel Internet Holdings,
19262       612         463      Verizon Global Networks 
 9498       519         448      BHARTI BT INTERNET LTD.
 7545       516         446      TPG Internet Pty Ltd
 7757       461         442      AT&T Broadband 
17488       449         442      Hathway IP Over Cable Interne
 3602       521         415      Sprint Canada, Inc. 
  812       438         410      Rogers WAVE 
 4766       710         409      Korea Telecom (KIX)

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

Bad AS  Designation  Network              Transit AS  Description
65005   PRIVATE       159.153.148.0/22     24989       IX Europe Frankfurt 

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       /9:9       /10:8       /11:20      /12:87      
/13:199     /14:346     /15:688     /16:8689    /17:2993    /18:5030    
/19:11251   /20:12445   /21:10830   /22:13800   /23:15020   /24:98195   
/25:334     /26:286     /27:200     /28:62      /29:25      /30:55      
/31:3       /32:39      

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

  ASN   No of nets  Total ann.   Description
18566      884           901      Covad Communications 
 6197      783           987      BellSouth Network Solutions, 
 7018      748          1466      AT&T WorldNet Services
 9583      668           849      Sify Limited
11492      620           628      Cable One 
 2386      617           884      AT&T Data Communications Serv
 4323      582          1208      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      514           710      Korea Telecom (KIX)
 6198      501           636      BellSouth Network Solutions, 
  855      445           573      Canadian Research Network 
 7757      443           461      AT&T Broadband 
 7011      415           483      Citizens Utilities 
 5668      402           516      CenturyTel Internet Holdings,
  702      373           587      UUNET - Commercial IP service
 1239      368           852      Sprint 
 6517      343           369      Yipes Communications, Inc. 
15270      340           368      PaeTec.net -a division of Pae
22773      322           617      Cox Communications, Inc.
  812      317           438      Rogers WAVE 

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

   4:3         8:44       12:1633     13:1        15:12       16:3      
  17:3        18:4        20:43       24:861      25:1        30:2      
  32:66       38:194      40:54       44:3        47:3        52:4      
  55:1        56:3        57:34       58:117      59:167      60:179    
  61:826      62:768      63:1900     64:2970     65:2242     66:3062   
  67:577      68:665      69:1429     70:293      71:55       72:602    
  73:23       74:2        80:758      81:584      82:505      83:360    
  84:343      85:429      86:289      87:162      88:18       89:13     
 124:11      125:200     128:148     129:170     130:103     131:310    
 132:33      133:7       134:145     135:46      136:169     137:60     
 138:182     139:85      140:452     141:132     142:414     143:144    
 144:224     145:39      146:309     147:135     148:323     149:186    
 150:114     151:73      152:61      153:102     154:6       155:186    
 156:90      157:120     158:158     159:180     160:88      161:64     
 162:218     163:177     164:180     165:196     166:145     167:236    
 168:471     169:139     170:315     171:12      190:30      192:5760   
 193:3355    194:2491    195:1744    196:753     198:3897    199:3255   
 200:4246    201:577     202:6433    203:6773    204:3883    205:2102   
 206:2432    207:2927    208:1995    209:3534    210:1907    211:804    
 212:1280    213:1453    214:326     215:40      216:3871    217:1158   
 218:238     219:137     220:641     221:339     222:146    

End of report


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