Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 16 18:02:28 UTC 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 17 Jun, 2006

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

BGP routing table entries examined:                              190702
    Prefixes after maximum aggregation:                          104856
    Unique aggregates announced to Internet:                      93265
Total ASes present in the Internet Routing Table:                 22466
Origin-only ASes present in the Internet Routing Table:           19551
Origin ASes announcing only one prefix:                            9367
Transit ASes present in the Internet Routing Table:                2915
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:                                      24
    Max AS path prepend of ASN (34527)                               16
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:              9
Number of addresses announced to Internet:                   1534135784
    Equivalent to 91 /8s, 113 /16s and 13 /24s
    Percentage of available address space announced:               41.4
    Percentage of allocated address space announced:               59.9
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       94488

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

Prefixes being announced by APNIC Region ASes:                    40854
    Total APNIC prefixes after maximum aggregation:               16870
Prefixes being announced from the APNIC address blocks:           38588
    Unique aggregates announced from the APNIC address blocks:    18534
APNIC Region origin ASes present in the Internet Routing Table:    2608
APNIC Region origin ASes announcing only one prefix:                747
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:                         18
Number of APNIC addresses announced to Internet:              233227360
    Equivalent to 13 /8s, 230 /16s and 196 /24s
    Percentage of available APNIC address space announced:         72.9

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:                     97971
    Total ARIN prefixes after maximum aggregation:                57841
Prefixes being announced from the ARIN address blocks:            71955
    Unique aggregates announced from the ARIN address blocks:     26768
ARIN Region origin ASes present in the Internet Routing Table:    10771
ARIN Region origin ASes announcing only one prefix:                4056
ARIN Region transit ASes present in the Internet Routing Table:     984
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               294035456
    Equivalent to 17 /8s, 134 /16s and 160 /24s
    Percentage of available ARIN address space announced:          76.2

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, 39936-40959
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:                     38101
    Total RIPE prefixes after maximum aggregation:                25513
Prefixes being announced from the RIPE address blocks:            35116
    Unique aggregates announced from the RIPE address blocks:     23752
RIPE Region origin ASes present in the Internet Routing Table:     8167
RIPE Region origin ASes announcing only one prefix:                4291
RIPE Region transit ASes present in the Internet Routing Table:    1354
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               254016900
    Equivalent to 15 /8s, 35 /16s and 253 /24s
    Percentage of available RIPE address space announced:          79.7

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
                       40960-41983
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:                   11558
    Total LACNIC prefixes after maximum aggregation:               3731
Prefixes being announced from the LACNIC address blocks:           9689
    Unique aggregates announced from the LACNIC address blocks:    5515
LACNIC Region origin ASes present in the Internet Routing Table:    699
LACNIC Region origin ASes announcing only one prefix:               230
LACNIC Region transit ASes present in the Internet Routing Table:   132
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              27422976
    Equivalent to 1 /8s, 162 /16s and 113 /24s
    Percentage of available LACNIC address space announced:        40.9

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:                   2216
    Total AfriNIC prefixes after maximum aggregation:               901
Prefixes being announced from the AfriNIC address blocks:          1516
    Unique aggregates announced from the AfriNIC address blocks:    965
AfriNIC Region origin ASes present in the Internet Routing Table:   157
AfriNIC Region origin ASes announcing only one prefix:               43
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:                       11
Number of AfriNIC addresses announced to Internet:              4141312
    Equivalent to 0 /8s, 63 /16s and 49 /24s
    Percentage of available AfriNIC address space announced:       12.3

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     1244       7244         229   CHINANET-BACKBONE
 4755      936        258          74   Videsh Sanchar Nigam Ltd. Aut
 9583      902        109          16   Sify Limited
 4766      690       4435         304   Korea Telecom (KIX)
 9498      656        211          67   BHARTI BT INTERNET LTD.
 1221      612       1652         471   Telstra Pty Ltd
 7545      546        124          70   TPG Internet Pty Ltd
17488      519         32          10   Hathway IP Over Cable Interne
17676      488       7061         109   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
18101      413         85          24   Reliance Infocom Ltd Internet
17557      402         31         180   Pakistan Telecom
 4802      381         80         168   Wantree Development
17974      381        129          14   PT TELEKOMUNIKASI INDONESIA
 9929      338        254          59   China Netcom Corp.
 2907      335       1733         311   SINET Japan
17849      302         23         103   Telecommunications Technology
 7474      299        211         228   SingTel Optus Pty Ltd
 9800      276        410          67   CHINA UNICOM
 4837      272       2995         118   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1477       6275         951   AT&T WorldNet Services
 4323     1317        743         261   Time Warner Telecom
  721     1016      21982         312   DLA Systems Automation Center
 6197     1011        629         473   BellSouth Network Solutions, 
  174      966       5787         903   Cogent Communications
19029      945        151         108   New Edge Networks 
18566      943        272           8   Covad Communications 
  701      938       6753         774   UUNET Technologies, Inc. 
 2386      911        560         704   AT&T Data Communications Serv
 1239      847       2788         599   Sprint 
20115      713        617         381   Charter Communications 
19262      710       2105         183   Verizon Global Networks 
  209      707       3687         550   Qwest 
22773      666       1741          40   Cox Communications, Inc.
 7011      638        218         414   Citizens Utilities 
11492      632         87          23   Cable One 
  852      584       1084         382   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      550        244          64   Canadian Research Network 
 5668      529        147          23   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      572       1951         451   UUNET - Commercial IP service
 3301      306       1343         293   TeliaNet Sweden
 3352      306       1643          30   Ibernet, Internet Access Netw
 3320      289       3989         242   Deutsche Telekom AG
 8220      274        470         262   COLT Telecommunications
  680      245       2025         242   DFN-IP service G-WiN
 3246      237        504         227   Song Networks
 6746      237         90         212   Dynamic Network Technologies,
24863      216         42          11   LINKdotNET AS number
 8708      215        275         201   Romania Data Systems S.A.
 3269      201       2182          72   TELECOM ITALIA
 8551      201        198          24   Bezeq International
 3215      198       1680          93   France Telecom Transpac
30890      194         17          72   SC Kappa Invexim SRL
 1257      193        741         165   SWIPnet Swedish IP Network
 8866      183         37          15   Bulgarian Telecommunication C
 6830      172        781          36   UPC Distribution Services
  786      171       1778         171   The JANET IP Service
 5400      170        348         139   BT Ignite European Backbone
 9121      169        931          28   TTnet Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      707       1083         225   UniNet S.A. de C.V. 
22047      418        174          11   VTR PUNTO NET S.A. 
11172      350        110          84   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
 6147      267        134          22   Telefonica Del Peru 
14117      205         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      175         81          25   Telecom Argentina Stet-France
 6503      135        151          81   AVANTEL, S.A. 
21826      133         17          23   INTERCABLE 
11556      132         80           4   Cable-Wireless Panama 
19169      127          8          25   Telconet 
14259      119         10          15   GTD Internet S.A. 
19429      118         64          41   E.T.B. 
14522      115         18           9   SatNet S.A. 
23216      114         21           9   RAMtelecom Telecomunicaciones
 6505      108         88          78   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
 5639      103         12           9   Telecommunications Services o
 7738      100        410          20   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      286        803         234   The Internet Solution 
 8452      168         60           7   TEDATA
 6713      154        135          11   Itissalat Al-MAGHRIB
 2018      131        314         105   Tertiary Education Network 
 5536      121          8          18   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      105          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
15475       62         84           4   Nile Online
20928       59         16           2   Noor Advanced Technologies AS
15706       44          8           3   Sudatel Internet Exchange Aut
 5713       39        294          35   Telkom SA Ltd 
33774       31          7          21   AS Number for Telecom Algeria
23889       26          8          11   MAURITIUS TELECOM
12455       25          6           3   Jambonet Autonomous system
16637       25         18          23   Johnnic e-Ventures 
 8524       22          1           5   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
21280       22          4           4   Swift Global Kenya Ltd.Is an 
33766       21          2           1   Nyala Communications Pty Ltd 

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

  ASN   No of nets  Net Savings Description
 4323      1317        1056      Time Warner Telecom
 4134      1244        1015      CHINANET-BACKBONE
18566       943         935      Covad Communications 
 9583       902         886      Sify Limited
 4755       936         862      Videsh Sanchar Nigam Ltd. Aut
19029       945         837      New Edge Networks 
  721      1016         704      DLA Systems Automation Center
22773       666         626      Cox Communications, Inc.
11492       632         609      Cable One 
 9498       656         589      BHARTI BT INTERNET LTD.
 6197      1011         538      BellSouth Network Solutions, 
19262       710         527      Verizon Global Networks 
19916       563         509      OLM LLC 
17488       519         509      Hathway IP Over Cable Interne
 5668       529         506      CenturyTel Internet Holdings,
  855       550         486      Canadian Research Network 
 8151       707         482      UniNet S.A. de C.V. 
 7545       546         476      TPG Internet Pty Ltd
 3602       526         422      Sprint Canada, Inc. 
22047       418         407      VTR PUNTO NET S.A. 

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

Bad AS  Designation  Network              Transit AS  Description
65128   PRIVATE       193.110.50.0/24      24652       Juniper Networks, Eu
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
192.172.0.0/19         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       /10:10      /11:28      /12:93      
/13:201     /14:362     /15:709     /16:8854    /17:3258    /18:5376    
/19:11748   /20:13273   /21:11583   /22:14854   /23:15937   /24:103253  
/25:388     /26:335     /27:182     /28:67      /29:73      /30:51      
/31:0       /32:41      

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

  ASN   No of nets  Total ann.   Description
18566      926           943      Covad Communications 
19029      876           945      New Edge Networks 
 6197      794          1011      BellSouth Network Solutions, 
 7018      783          1477      AT&T WorldNet Services
 9583      733           902      Sify Limited
 4323      642          1317      Time Warner Telecom
 2386      630           911      AT&T Data Communications Serv
11492      623           632      Cable One 
19916      557           563      OLM LLC 
 7011      547           638      Citizens Utilities 
 4766      500           690      Korea Telecom (KIX)
  855      424           550      Canadian Research Network 
 5668      412           529      CenturyTel Internet Holdings,
15270      404           435      PaeTec.net -a division of Pae
 1239      391           847      Sprint 
 9498      369           656      BHARTI BT INTERNET LTD.
 4755      368           936      Videsh Sanchar Nigam Ltd. Aut
 6517      364           395      Yipes Communications, Inc. 
  702      355           572      UUNET - Commercial IP service
 6198      353           507      BellSouth Network Solutions, 

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

   4:9         8:42       12:1618     13:1        15:16       16:3      
  17:3        18:4        20:41       24:749      25:1        32:58     
  38:230      40:54       41:3        44:3        47:6        52:4      
  55:1        56:3        57:25       58:184      59:231      60:184    
  61:859      62:776      63:1886     64:3184     65:2188     66:3075   
  67:615      68:666      69:1534     70:381      71:81       72:776    
  74:42       80:789      81:644      82:600      83:397      84:385    
  85:547      86:346      87:361      88:106      89:262     121:1      
 122:2       123:1       124:277     125:512     128:156     129:188    
 130:118     131:317     132:33      133:8       134:158     135:43     
 136:178     137:80      138:206     139:62      140:470     141:133    
 142:380     143:166     144:223     145:40      146:318     147:136    
 148:317     149:188     150:113     151:93      152:69      153:107    
 154:5       155:202     156:98      157:146     158:169     159:172    
 160:91      161:76      162:244     163:150     164:180     165:211    
 166:171     167:244     168:492     169:128     170:336     171:14     
 183:1       190:75      192:5735    193:3374    194:2643    195:1917   
 196:856     198:3912    199:3224    200:4489    201:979     202:6671   
 203:7019    204:3903    205:2054    206:2425    207:2908    208:2117   
 209:3780    210:1975    211:689     212:1266    213:1462    214:364    
 215:40      216:4236    217:1151    218:296     219:232     220:720    
 221:359     222:186    

End of report



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