[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Apr 22 04:10:06 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 22 Apr, 2006

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

BGP routing table entries examined:                              187104
    Prefixes after maximum aggregation:                          103330
    Unique aggregates announced to Internet:                      91523
Total ASes present in the Internet Routing Table:                 21984
Origin-only ASes present in the Internet Routing Table:           19122
Origin ASes announcing only one prefix:                            9094
Transit ASes present in the Internet Routing Table:                2862
Transit-only ASes present in the Internet Routing Table:             61
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      29
Prefixes from unregistered ASNs in the Routing Table:                 5
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             11
Number of addresses announced to Internet:                   1509815456
    Equivalent to 89 /8s, 253 /16s and 244 /24s
    Percentage of available address space announced:               40.7
    Percentage of allocated address space announced:               60.1
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       92315

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

Prefixes being announced by APNIC Region ASes:                    39292
    Total APNIC prefixes after maximum aggregation:               16461
Prefixes being announced from the APNIC address blocks:           37000
    Unique aggregates announced from the APNIC address blocks:    18194
APNIC Region origin ASes present in the Internet Routing Table:    2545
APNIC Region origin ASes announcing only one prefix:                718
APNIC Region transit ASes present in the Internet Routing Table:    393
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              222429920
    Equivalent to 13 /8s, 66 /16s and 2 /24s
    Percentage of available APNIC address space announced:         69.5

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:                     97380
    Total ARIN prefixes after maximum aggregation:                57484
Prefixes being announced from the ARIN address blocks:            76450
    Unique aggregates announced from the ARIN address blocks:     29408
ARIN Region origin ASes present in the Internet Routing Table:    10646
ARIN Region origin ASes announcing only one prefix:                3990
ARIN Region transit ASes present in the Internet Routing Table:     987
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          26
Number of ARIN addresses announced to Internet:               295772672
    Equivalent to 17 /8s, 161 /16s and 34 /24s
    Percentage of available ARIN address space announced:          73.5

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:                     37242
    Total RIPE prefixes after maximum aggregation:                24873
Prefixes being announced from the RIPE address blocks:            34282
    Unique aggregates announced from the RIPE address blocks:     23106
RIPE Region origin ASes present in the Internet Routing Table:     7902
RIPE Region origin ASes announcing only one prefix:                4119
RIPE Region transit ASes present in the Internet Routing Table:    1299
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               245870016
    Equivalent to 14 /8s, 167 /16s and 173 /24s
    Percentage of available RIPE address space announced:          73.3

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:                   11058
    Total LACNIC prefixes after maximum aggregation:               3610
Prefixes being announced from the LACNIC address blocks:           9199
    Unique aggregates announced from the LACNIC address blocks:    5411
LACNIC Region origin ASes present in the Internet Routing Table:    680
LACNIC Region origin ASes announcing only one prefix:               221
LACNIC Region transit ASes present in the Internet Routing Table:   129
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC addresses announced to Internet:              26513152
    Equivalent to 1 /8s, 148 /16s and 143 /24s
    Percentage of available LACNIC address space announced:        39.5

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:                   2127
    Total AfriNIC prefixes after maximum aggregation:               902
Prefixes being announced from the AfriNIC address blocks:          1460
    Unique aggregates announced from the AfriNIC address blocks:    955
AfriNIC Region origin ASes present in the Internet Routing Table:   152
AfriNIC Region origin ASes announcing only one prefix:               46
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      3.4
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC addresses announced to Internet:              4043776
    Equivalent to 0 /8s, 61 /16s and 180 /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     1081       7069         217   CHINANET-BACKBONE
 9583      890        109          16   Sify Limited
 4755      766        257          67   Videsh Sanchar Nigam Ltd. Aut
 4766      681       4436         304   Korea Telecom (KIX)
 1221      621       1557         475   Telstra Pty Ltd
 9498      571        212          72   BHARTI BT INTERNET LTD.
 7545      527        108          69   TPG Internet Pty Ltd
17488      501         31           7   Hathway IP Over Cable Interne
17676      484       6997         107   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
 4802      382         81         176   Wantree Development
18101      340         69          18   Reliance Infocom Ltd Internet
17849      339         22         114   Telecommunications Technology
 2907      336       1749         312   SINET Japan
 9929      322        221          57   China Netcom Corp.
17557      317         27         161   Pakistan Telecom
17974      308        120          27   PT TELEKOMUNIKASI INDONESIA
 7474      296        210         228   SingTel Optus Pty Ltd
 9800      270        410          67   CHINA UNICOM
 9837      265         77         161   Powertel Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1507       6254         979   AT&T WorldNet Services
 4323     1264        733         251   Time Warner Telecom
 6197     1010        618         475   BellSouth Network Solutions, 
  721     1008      21961         305   DLA Systems Automation Center
  174      962       5787         910   Cogent Communications
19029      946        151         111   New Edge Networks 
  701      935       8031         777   UUNET Technologies, Inc. 
18566      935        272           8   Covad Communications 
 2386      878        537         670   AT&T Data Communications Serv
 1239      849       2804         603   Sprint 
  209      718       3615         560   Qwest 
19262      686       1990         163   Verizon Global Networks 
20115      681        596         363   Charter Communications 
22773      648       1735          40   Cox Communications, Inc.
 7011      631        217         412   Citizens Utilities 
11492      627         86          20   Cable One 
 6198      592        534         236   BellSouth Network Solutions, 
  852      582       1085         384   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      553        244          63   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      579       1951         455   UUNET - Commercial IP service
 3352      309       1596          32   Ibernet, Internet Access Netw
 3301      308       1071         292   TeliaNet Sweden
 8220      293        474         271   COLT Telecommunications
 3320      287       3989         238   Deutsche Telekom AG
  680      245       2025         242   DFN-IP service G-WiN
 3246      232        504         222   Song Networks
 6746      228         89         202   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        710         171   SWIPnet Swedish IP Network
 3269      195       2070          74   TELECOM ITALIA
 3215      194       1630          92   France Telecom Transpac
 8866      177         37          15   Bulgarian Telecommunication C
  786      171       1778         171   The JANET IP Service
 5400      171        363         140   BT Ignite European Backbone
 9121      168        931          27   TTnet Autonomous System
 6830      167        765          35   UPC Distribution Services
30890      163         15          61   SC Kappa Invexim SRL

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      696       1067         227   UniNet S.A. de C.V. 
22047      408        158          11   VTR PUNTO NET S.A. 
11172      322        110          84   Servicios Alestra S.A de C.V 
16814      314         20           8   NSS, S.A. 
14117      189         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      159         75          20   Telecom Argentina Stet-France
 6147      153        124          23   Telefonica Del Peru 
21826      133         16          21   INTERCABLE 
 5639      132         12           9   Telecommunications Services o
11556      132         80           4   Cable-Wireless Panama 
19169      125          8          28   Telconet 
 6503      122        149          75   AVANTEL, S.A. 
14259      114         10          12   GTD Internet S.A. 
23216      107         21           8   RAMtelecom Telecomunicaciones
 6505      106         88          78   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
19429      102         57          43   E.T.B. 
18822       97          6           8   TELEFONICA MANQUEHUE 
 7315       96          6           3   Grupo Rey Moreno 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        803         233   The Internet Solution 
 8452      169         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      118         50           7   RAYA Telecom - Egypt
33783       93          6          12   EEPAD TISP TELECOM & INTERNET
 2905       74        155          67   The Internetworking Company o
15475       65         84           4   Nile Online
20928       57         16           2   Noor Advanced Technologies AS
12455       43          6           6   Jambonet Autonomous system
 5713       39        294          35   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
33774       29          7          20   AS Number for Telecom Algeria
23889       26          8          11   MAURITIUS TELECOM
 8524       24          1           4   AUCEGYPT Autonomous System
16637       24         14          22   Johnnic e-Ventures 
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      1264        1013      Time Warner Telecom
18566       935         927      Covad Communications 
 9583       890         874      Sify Limited
 4134      1081         864      CHINANET-BACKBONE
19029       946         835      New Edge Networks 
  721      1008         703      DLA Systems Automation Center
 4755       766         699      Videsh Sanchar Nigam Ltd. Aut
22773       648         608      Cox Communications, Inc.
11492       627         607      Cable One 
 6197      1010         535      BellSouth Network Solutions, 
19262       686         523      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       535         505      CenturyTel Internet Holdings,
 9498       571         499      BHARTI BT INTERNET LTD.
17488       501         494      Hathway IP Over Cable Interne
  855       553         490      Canadian Research Network 
 8151       696         469      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 ASNs (Global)
----------------------------------

Bad AS  Designation  Network              Transit AS  Description
65241   PRIVATE       65.90.71.0/24        10794       Bank of America 
65005   PRIVATE       159.153.148.0/22     24989       IX Europe Frankfurt 
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com
64624   PRIVATE       204.114.220.0/24     18113       Pfizer Pte Ltd Singa
64624   PRIVATE       204.114.221.0/24     18113       Pfizer Pte Ltd Singa

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

Network            Origin AS  Description
121.128.0.0/11        4766     Korea Telecom (KIX)
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        /8:17       /9:9       /10:9       /11:28      /12:88      
/13:198     /14:358     /15:698     /16:8795    /17:3181    /18:5235    
/19:11561   /20:13040   /21:11270   /22:14474   /23:15542   /24:101557  
/25:372     /26:252     /27:221     /28:63      /29:70      /30:34      
/31:0       /32:32      

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

  ASN   No of nets  Total ann.   Description
18566      918           935      Covad Communications 
19029      881           946      New Edge Networks 
 6197      798          1010      BellSouth Network Solutions, 
 7018      795          1507      AT&T WorldNet Services
 9583      719           890      Sify Limited
11492      618           627      Cable One 
 4323      607          1264      Time Warner Telecom
 2386      598           878      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      540           631      Citizens Utilities 
 4766      491           681      Korea Telecom (KIX)
 7757      459           477      AT&T Broadband 
 6198      443           592      BellSouth Network Solutions, 
  855      428           553      Canadian Research Network 
 5668      416           535      CenturyTel Internet Holdings,
 1239      378           849      Sprint 
15270      374           405      PaeTec.net -a division of Pae
  702      360           579      UUNET - Commercial IP service
 6517      355           384      Yipes Communications, Inc. 
 8151      340           696      UniNet S.A. de C.V. 

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

   4:3         8:40       12:1627     13:1        15:12       16:3      
  17:3        18:4        20:43       24:882      25:1        30:2      
  32:66       38:211      40:54       44:3        47:6        52:4      
  55:1        56:3        57:31       58:145      59:195      60:174    
  61:829      62:765      63:1925     64:3124     65:2235     66:3065   
  67:630      68:684      69:1479     70:337      71:76       72:696    
  73:23       74:29       80:775      81:629      82:617      83:384    
  84:378      85:523      86:346      87:318      88:72       89:148    
 124:224     125:368     128:161     129:176     130:107     131:317    
 132:31      133:8       134:160     135:46      136:177     137:71     
 138:198     139:66      140:463     141:134     142:388     143:161    
 144:225     145:42      146:325     147:134     148:322     149:186    
 150:114     151:81      152:64      153:107     154:6       155:196    
 156:96      157:142     158:165     159:171     160:87      161:73     
 162:253     163:145     164:179     165:192     166:163     167:245    
 168:477     169:134     170:331     171:12      172:1       183:1      
 190:95      192:5765    193:3363    194:2587    195:1819    196:851    
 198:3868    199:3238    200:4352    201:852     202:6596    203:6805   
 204:3877    205:2094    206:2417    207:2931    208:2050    209:3842   
 210:1938    211:700     212:1254    213:1470    214:341     215:41     
 216:4123    217:1170    218:261     219:181     220:646     221:357    
 222:147    

End of report



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