[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Apr 29 04:08:00 EST 2006


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 29 Apr, 2006

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

BGP routing table entries examined:                              187662
    Prefixes after maximum aggregation:                          103564
    Unique aggregates announced to Internet:                      91730
Total ASes present in the Internet Routing Table:                 22024
Origin-only ASes present in the Internet Routing Table:           19168
Origin ASes announcing only one prefix:                            9112
Transit ASes present in the Internet Routing Table:                2856
Transit-only ASes present in the Internet Routing Table:             64
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      26
Prefixes from unregistered ASNs in the Routing Table:                 2
    Unregistered ASNs in the Routing Table:                           3
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             10
Number of addresses announced to Internet:                   1531037600
    Equivalent to 91 /8s, 65 /16s and 199 /24s
    Percentage of available address space announced:               41.3
    Percentage of allocated address space announced:               59.8
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       92560

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

Prefixes being announced by APNIC Region ASes:                    39444
    Total APNIC prefixes after maximum aggregation:               16495
Prefixes being announced from the APNIC address blocks:           37144
    Unique aggregates announced from the APNIC address blocks:    18237
APNIC Region origin ASes present in the Internet Routing Table:    2544
APNIC Region origin ASes announcing only one prefix:                715
APNIC Region transit ASes present in the Internet Routing Table:    390
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              224866528
    Equivalent to 13 /8s, 103 /16s and 48 /24s
    Percentage of available APNIC address space announced:         70.3

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, 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:                     97490
    Total ARIN prefixes after maximum aggregation:                57569
Prefixes being announced from the ARIN address blocks:            71609
    Unique aggregates announced from the ARIN address blocks:     26260
ARIN Region origin ASes present in the Internet Routing Table:    10653
ARIN Region origin ASes announcing only one prefix:                3984
ARIN Region transit ASes present in the Internet Routing Table:     982
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               288908288
    Equivalent to 17 /8s, 56 /16s and 100 /24s
    Percentage of available ARIN address space announced:          74.9

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, 64/5, 72/6, 76/8, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     37378
    Total RIPE prefixes after maximum aggregation:                24958
Prefixes being announced from the RIPE address blocks:            34408
    Unique aggregates announced from the RIPE address blocks:     23164
RIPE Region origin ASes present in the Internet Routing Table:     7926
RIPE Region origin ASes announcing only one prefix:                4142
RIPE Region transit ASes present in the Internet Routing Table:    1301
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               247025088
    Equivalent to 14 /8s, 185 /16s and 77 /24s
    Percentage of available RIPE address space announced:          77.5

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, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   11217
    Total LACNIC prefixes after maximum aggregation:               3641
Prefixes being announced from the LACNIC address blocks:           9325
    Unique aggregates announced from the LACNIC address blocks:    5400
LACNIC Region origin ASes present in the Internet Routing Table:    682
LACNIC Region origin ASes announcing only one prefix:               223
LACNIC Region transit ASes present in the Internet Routing Table:   129
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC addresses announced to Internet:              26742272
    Equivalent to 1 /8s, 152 /16s and 14 /24s
    Percentage of available LACNIC address space announced:        39.8

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:                   2131
    Total AfriNIC prefixes after maximum aggregation:               901
Prefixes being announced from the AfriNIC address blocks:          1457
    Unique aggregates announced from the AfriNIC address blocks:    948
AfriNIC Region origin ASes present in the Internet Routing Table:   155
AfriNIC Region origin ASes announcing only one prefix:               48
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC addresses announced to Internet:              4057344
    Equivalent to 0 /8s, 61 /16s and 233 /24s
    Percentage of available AfriNIC address space announced:       12.1

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     1124       7073         221   CHINANET-BACKBONE
 9583      896        109          16   Sify Limited
 4755      768        257          66   Videsh Sanchar Nigam Ltd. Aut
 4766      680       4436         307   Korea Telecom (KIX)
 1221      617       1556         472   Telstra Pty Ltd
 9498      576        212          72   BHARTI BT INTERNET LTD.
 7545      527        108          69   TPG Internet Pty Ltd
17488      501         31           7   Hathway IP Over Cable Interne
17676      486       7029         108   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
 4802      382         81         176   Wantree Development
17849      346         22         113   Telecommunications Technology
18101      340         69          18   Reliance Infocom Ltd Internet
 2907      336       1749         312   SINET Japan
17557      326         27         158   Pakistan Telecom
 9929      323        221          57   China Netcom Corp.
17974      307        120          28   PT TELEKOMUNIKASI INDONESIA
 7474      298        211         228   SingTel Optus Pty Ltd
 9800      274        410          67   CHINA UNICOM
 9837      265         78         158   Powertel Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1503       6252         977   AT&T WorldNet Services
 4323     1289        732         252   Time Warner Telecom
 6197     1008        618         472   BellSouth Network Solutions, 
  721     1004      21945         305   DLA Systems Automation Center
  174      962       5787         909   Cogent Communications
19029      953        151         111   New Edge Networks 
18566      936        272           8   Covad Communications 
  701      933       8030         773   UUNET Technologies, Inc. 
 2386      876        537         668   AT&T Data Communications Serv
 1239      844       2804         597   Sprint 
  209      717       3616         559   Qwest 
19262      691       2021         162   Verizon Global Networks 
20115      680        595         362   Charter Communications 
22773      654       1737          44   Cox Communications, Inc.
 7011      632        217         413   Citizens Utilities 
11492      629         86          20   Cable One 
  852      582       1085         384   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      550        244          63   Canadian Research Network 
 3602      538        127         109   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      580       1951         456   UUNET - Commercial IP service
 3352      310       1612          29   Ibernet, Internet Access Netw
 3301      309       1072         294   TeliaNet Sweden
 3320      289       3989         239   Deutsche Telekom AG
 8220      289        474         267   COLT Telecommunications
  680      245       2025         242   DFN-IP service G-WiN
 3246      231        504         221   Song Networks
 6746      226         88         201   Dynamic Network Technologies,
 8708      218        276         201   Romania Data Systems S.A.
24863      207         40           9   LINKdotNET AS number
 8551      202        198          24   Bezeq International
 1257      196        742         170   SWIPnet Swedish IP Network
 3215      196       1662          93   France Telecom Transpac
 3269      196       2070          73   TELECOM ITALIA
 8866      181         37          16   Bulgarian Telecommunication C
  786      171       1778         171   The JANET IP Service
 5400      171        363         140   BT Ignite European Backbone
 6830      169        765          35   UPC Distribution Services
 9121      168        931          27   TTnet Autonomous System
30890      163         15          62   SC Kappa Invexim SRL

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      701       1067         227   UniNet S.A. de C.V. 
22047      408        158          11   VTR PUNTO NET S.A. 
11172      323        110          84   Servicios Alestra S.A de C.V 
16814      316         20           8   NSS, S.A. 
 6147      261        124          23   Telefonica Del Peru 
14117      205         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      160         75          18   Telecom Argentina Stet-France
21826      133         16          19   INTERCABLE 
 5639      132         12           9   Telecommunications Services o
11556      132         80           4   Cable-Wireless Panama 
 6503      127        149          79   AVANTEL, S.A. 
19169      126          8          24   Telconet 
14259      114         10          12   GTD Internet S.A. 
23216      109         21           9   RAMtelecom Telecomunicaciones
 6505      106         88          78   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
19429      103         58          44   E.T.B. 
14522       99         13           7   SatNet S.A. 
14571       97         25           3   Internet Group do Brasil 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        803         233   The Internet Solution 
 8452      170         60           7   TEDATA
 6713      145        135          11   Itissalat Al-MAGHRIB
 2018      123        314         104   Tertiary Education Network 
 5536      121          8          18   Internet Egypt Network
24835      117         50           7   RAYA Telecom - Egypt
33783      105          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
15475       57         84           4   Nile Online
20928       57         16           2   Noor Advanced Technologies AS
12455       42          6           7   Jambonet Autonomous system
 5713       39        294          35   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
33774       30          7          20   AS Number for Telecom Algeria
 8524       24          1           4   AUCEGYPT Autonomous System
16637       24         14          22   Johnnic e-Ventures 
23889       23          6          16   MAURITIUS TELECOM
10798       22          1          13   Standard Bank of South Africa
 2561       19          6           2   Egyptian Universities Network
21491       19         17           2   UTL On-line is RF broadband I

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

  ASN   No of nets  Net Savings Description
 4323      1289        1037      Time Warner Telecom
18566       936         928      Covad Communications 
 4134      1124         903      CHINANET-BACKBONE
 9583       896         880      Sify Limited
19029       953         842      New Edge Networks 
 4755       768         702      Videsh Sanchar Nigam Ltd. Aut
  721      1004         699      DLA Systems Automation Center
22773       654         610      Cox Communications, Inc.
11492       629         609      Cable One 
 6197      1008         536      BellSouth Network Solutions, 
19262       691         529      Verizon Global Networks 
19916       563         509      OLM LLC 
 9498       576         504      BHARTI BT INTERNET LTD.
 5668       533         503      CenturyTel Internet Holdings,
17488       501         494      Hathway IP Over Cable Interne
  855       550         487      Canadian Research Network 
 8151       701         474      UniNet S.A. de C.V. 
 7545       527         458      TPG Internet Pty Ltd
 7757       477         458      AT&T Broadband 
 3602       538         429      Sprint Canada, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
65241   PRIVATE       65.90.71.0/24        10794       Bank of America 
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com

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
183.206.196.0/24      2188     FR-RENATER-ASTER
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 
192.84.205.0/24        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       /10:9       /11:28      /12:89      
/13:199     /14:361     /15:701     /16:8816    /17:3192    /18:5247    
/19:11601   /20:13076   /21:11333   /22:14521   /23:15601   /24:101786  
/25:382     /26:272     /27:225     /28:61      /29:70      /30:35      
/31:0       /32:30      

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

  ASN   No of nets  Total ann.   Description
18566      919           936      Covad Communications 
19029      884           953      New Edge Networks 
 6197      797          1008      BellSouth Network Solutions, 
 7018      797          1503      AT&T WorldNet Services
 9583      724           896      Sify Limited
 4323      631          1289      Time Warner Telecom
11492      620           629      Cable One 
 2386      596           876      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      541           632      Citizens Utilities 
 4766      490           680      Korea Telecom (KIX)
 7757      459           477      AT&T Broadband 
  855      425           550      Canadian Research Network 
 5668      414           533      CenturyTel Internet Holdings,
 1239      380           844      Sprint 
15270      376           407      PaeTec.net -a division of Pae
  702      360           580      UUNET - Commercial IP service
 6198      356           505      BellSouth Network Solutions, 
 6517      354           384      Yipes Communications, Inc. 
17849      346           346      Telecommunications Technology

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

   4:2         8:40       12:1629     13:1        15:12       16:3      
  17:3        18:4        20:43       24:887      25:1        30:2      
  32:58       38:208      40:54       41:1        44:3        45:2      
  47:6        52:4        55:1        56:3        57:31       58:150    
  59:185      60:177      61:831      62:765      63:1929     64:3158   
  65:2209     66:3091     67:598      68:677      69:1486     70:327    
  71:77       72:678      73:23       74:30       80:786      81:631    
  82:601      83:376      84:377      85:530      86:385      87:323    
  88:75       89:160     124:253     125:373     128:165     129:181    
 130:108     131:320     132:32      133:8       134:157     135:46     
 136:178     137:71      138:198     139:67      140:465     141:133    
 142:384     143:164     144:222     145:43      146:324     147:138    
 148:330     149:186     150:114     151:81      152:64      153:107    
 154:6       155:196     156:97      157:141     158:168     159:167    
 160:87      161:74      162:252     163:145     164:179     165:194    
 166:163     167:246     168:483     169:134     170:331     171:13     
 183:1       190:58      192:5775    193:3351    194:2597    195:1830   
 196:850     198:3906    199:3245    200:4430    201:911     202:6608   
 203:6823    204:3881    205:2090    206:2409    207:2936    208:2064   
 209:3795    210:1914    211:691     212:1260    213:1463    214:350    
 215:41      216:4103    217:1170    218:272     219:181     220:655    
 221:358     222:147    

End of report



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