Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 7 18:02:31 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 08 Jul, 2006

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

BGP routing table entries examined:                              191740
    Prefixes after maximum aggregation:                          105525
    Unique aggregates announced to Internet:                      93774
Total ASes present in the Internet Routing Table:                 22613
Origin-only ASes present in the Internet Routing Table:           19679
Origin ASes announcing only one prefix:                            9443
Transit ASes present in the Internet Routing Table:                2934
Transit-only ASes present in the Internet Routing Table:             66
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:                           2
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1540931304
    Equivalent to 91 /8s, 216 /16s and 190 /24s
    Percentage of available address space announced:               41.6
    Percentage of allocated address space announced:               60.1
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       94814

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

Prefixes being announced by APNIC Region ASes:                    41334
    Total APNIC prefixes after maximum aggregation:               16992
Prefixes being announced from the APNIC address blocks:           39038
    Unique aggregates announced from the APNIC address blocks:    18380
APNIC Region origin ASes present in the Internet Routing Table:    2619
APNIC Region origin ASes announcing only one prefix:                739
APNIC Region transit ASes present in the Internet Routing Table:    399
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         18
Number of APNIC addresses announced to Internet:              235934304
    Equivalent to 14 /8s, 16 /16s and 18 /24s
    Percentage of available APNIC address space announced:         73.8

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:                     97821
    Total ARIN prefixes after maximum aggregation:                58116
Prefixes being announced from the ARIN address blocks:            71625
    Unique aggregates announced from the ARIN address blocks:     27058
ARIN Region origin ASes present in the Internet Routing Table:    10823
ARIN Region origin ASes announcing only one prefix:                4089
ARIN Region transit ASes present in the Internet Routing Table:     992
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               295333632
    Equivalent to 17 /8s, 154 /16s and 111 /24s
    Percentage of available ARIN address space announced:          76.5

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, 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:                     38397
    Total RIPE prefixes after maximum aggregation:                25770
Prefixes being announced from the RIPE address blocks:            35459
    Unique aggregates announced from the RIPE address blocks:     23944
RIPE Region origin ASes present in the Internet Routing Table:     8242
RIPE Region origin ASes announcing only one prefix:                4334
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:                          20
Number of RIPE addresses announced to Internet:               255785604
    Equivalent to 15 /8s, 62 /16s and 250 /24s
    Percentage of available RIPE address space announced:          80.2

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:                   11893
    Total LACNIC prefixes after maximum aggregation:               3747
Prefixes being announced from the LACNIC address blocks:           9961
    Unique aggregates announced from the LACNIC address blocks:    5631
LACNIC Region origin ASes present in the Internet Routing Table:    706
LACNIC Region origin ASes announcing only one prefix:               237
LACNIC Region transit ASes present in the Internet Routing Table:   131
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              28361472
    Equivalent to 1 /8s, 176 /16s and 195 /24s
    Percentage of available LACNIC address space announced:        42.3

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:                   2293
    Total AfriNIC prefixes after maximum aggregation:               900
Prefixes being announced from the AfriNIC address blocks:          1540
    Unique aggregates announced from the AfriNIC address blocks:    956
AfriNIC Region origin ASes present in the Internet Routing Table:   157
AfriNIC Region origin ASes announcing only one prefix:               44
AfriNIC Region transit ASes present in the Internet Routing Table:   26
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       11
Number of AfriNIC addresses announced to Internet:              4172800
    Equivalent to 0 /8s, 63 /16s and 172 /24s
    Percentage of available AfriNIC address space announced:       12.4

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     1245       7478         229   CHINANET-BACKBONE
 4755      947        257          74   Videsh Sanchar Nigam Ltd. Aut
 9583      908        109          15   Sify Limited
 9498      713        211          68   BHARTI BT INTERNET LTD.
 4766      689       4435         303   Korea Telecom (KIX)
 1221      610       1668         468   Telstra Pty Ltd
 7545      547        124          73   TPG Internet Pty Ltd
17488      519         32          17   Hathway IP Over Cable Interne
17676      490       7093         110   Softbank BB Corp.
 9443      452        111          83   Primus Telecommunications
18101      422         85          24   Reliance Infocom Ltd Internet
17974      404        129          14   PT TELEKOMUNIKASI INDONESIA
17849      388         28         122   Telecommunications Technology
 4802      381         81         168   Wantree Development
17557      381         30         172   Pakistan Telecom
 2907      335       1733         311   SINET Japan
 9929      330        255          61   China Netcom Corp.
 7474      298        211         228   SingTel Optus Pty Ltd
 4837      280       3085         123   chinanet IDC center beijing n
10139      278         19           5   Meridian Telekoms

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1482       6262         945   AT&T WorldNet Services
 4323     1334        747         266   Time Warner Telecom
  721     1028      21998         315   DLA Systems Automation Center
 6197     1015        636         477   BellSouth Network Solutions, 
  174      962       5771         894   Cogent Communications
  701      947       6754         780   UUNET Technologies, Inc. 
18566      945        272           8   Covad Communications 
 2386      918        558         710   AT&T Data Communications Serv
 1239      848       2793         602   Sprint 
19262      723       2188         191   Verizon Global Networks 
20115      714        620         382   Charter Communications 
  209      697       3681         550   Qwest 
22773      674       1741          40   Cox Communications, Inc.
11492      654         89          10   Cable One 
 7011      651        218         413   Citizens Utilities 
 6198      599        568         236   BellSouth Network Solutions, 
  852      582       1084         382   Telus Advanced Communications
  855      573        247          74   Canadian Research Network 
19916      563         49          54   OLM LLC 
 5668      531        147          23   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      565       1932         444   UUNET - Commercial IP service
 3301      316       1187         301   TeliaNet Sweden
 3352      304       1639          33   Ibernet, Internet Access Netw
 3320      279       3988         235   Deutsche Telekom AG
 8220      279        471         265   COLT Telecommunications
  680      246       2041         243   DFN-IP service G-WiN
 6746      234         89         209   Dynamic Network Technologies,
 3246      230        463         220   Song Networks
24863      216         42          11   LINKdotNET AS number
 8708      215        276         204   Romania Data Systems S.A.
 8551      209        198          29   Bezeq International
30890      205         18          79   SC Kappa Invexim SRL
 3215      204       1760          97   France Telecom Transpac
 3269      201       2182          72   TELECOM ITALIA
 1257      194        741         166   SWIPnet Swedish IP Network
 8866      187         37          15   Bulgarian Telecommunication C
 6830      175        813          37   UPC Distribution Services
  786      169       1778         169   The JANET IP Service
 3300      169        171          98   AUCS Communications Services 
12479      160        322           5   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      694       1159         222   UniNet S.A. de C.V. 
22047      432        206          11   VTR PUNTO NET S.A. 
11172      354        113          85   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
 6147      267        134          22   Telefonica Del Peru 
 6471      221         74          28   ENTEL CHILE S.A. 
14117      207         13           7   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 6503      180        151          83   AVANTEL, S.A. 
 7303      177         82          27   Telecom Argentina Stet-France
21826      133         17          23   INTERCABLE 
11556      132         80           4   Cable-Wireless Panama 
19169      129          8          26   Telconet 
19429      129         68          43   E.T.B. 
14522      128         18           9   SatNet S.A. 
14259      119         10          15   GTD Internet S.A. 
23216      114         21           9   RAMtelecom Telecomunicaciones
 5639      109         12           9   Telecommunications Services o
 6505      109         88          79   Global One Communicaoes Ltda 
 7738      106        410          20   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      287        803         234   The Internet Solution 
 8452      168         60           7   TEDATA
 6713      154        135          11   Itissalat Al-MAGHRIB
 2018      131        314         105   Tertiary Education Network 
15475      125         84           4   Nile Online
 5536      121          8          18   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      105          6           2   EEPAD TISP TELECOM & INTERNET
 2905       69        139          60   The Internetworking Company o
20928       60         16           3   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
16637       25         18          23   Johnnic e-Ventures 
10798       23          1          14   Standard Bank of South Africa
12455       23          6           3   Jambonet Autonomous system
21280       23          4           4   Swift Global Kenya Ltd.Is an 
23889       23          7          12   MAURITIUS TELECOM
 8524       22          1           5   AUCEGYPT Autonomous System
33766       21          2           1   Nyala Communications Pty Ltd 

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

  ASN   No of nets  Net Savings Description
 4323      1334        1068      Time Warner Telecom
 4134      1245        1016      CHINANET-BACKBONE
18566       945         937      Covad Communications 
 9583       908         893      Sify Limited
 4755       947         873      Videsh Sanchar Nigam Ltd. Aut
  721      1028         713      DLA Systems Automation Center
 9498       713         645      BHARTI BT INTERNET LTD.
11492       654         644      Cable One 
22773       674         634      Cox Communications, Inc.
 6197      1015         538      BellSouth Network Solutions, 
19262       723         532      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       531         508      CenturyTel Internet Holdings,
17488       519         502      Hathway IP Over Cable Interne
  855       573         499      Canadian Research Network 
 7545       547         474      TPG Internet Pty Ltd
 8151       694         472      UniNet S.A. de C.V. 
 3602       525         421      Sprint Canada, Inc. 
22047       432         421      VTR PUNTO NET S.A. 
15270       440         407      PaeTec.net -a division of Pae

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
198.18.1.0/24         3301     TeliaNet Sweden

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      /11:26      /12:93      
/13:202     /14:365     /15:715     /16:8879    /17:3298    /18:5423    
/19:11838   /20:13451   /21:11734   /22:14860   /23:16024   /24:103705  
/25:385     /26:292     /27:179     /28:67      /29:73      /30:53      
/31:0       /32:42      

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

  ASN   No of nets  Total ann.   Description
18566      928           945      Covad Communications 
 6197      795          1015      BellSouth Network Solutions, 
 7018      791          1482      AT&T WorldNet Services
 9583      738           908      Sify Limited
 4323      648          1334      Time Warner Telecom
11492      642           654      Cable One 
 2386      637           918      AT&T Data Communications Serv
 7011      559           651      Citizens Utilities 
19916      557           563      OLM LLC 
 4766      500           689      Korea Telecom (KIX)
  855      447           573      Canadian Research Network 
 6198      441           599      BellSouth Network Solutions, 
 9498      415           713      BHARTI BT INTERNET LTD.
 5668      414           531      CenturyTel Internet Holdings,
15270      409           440      PaeTec.net -a division of Pae
 1239      390           848      Sprint 
17849      382           388      Telecommunications Technology
 4755      380           947      Videsh Sanchar Nigam Ltd. Aut
 6517      373           406      Yipes Communications, Inc. 
22773      354           674      Cox Communications, Inc.

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

   4:9         8:42       11:1        12:1616     13:1        15:15     
  16:3        17:3        18:4        20:40       24:776      25:1      
  32:58       38:231      40:54       41:3        44:3        47:6      
  52:4        55:1        56:3        57:24       58:192      59:242    
  60:189      61:866      62:800      63:1885     64:3172     65:2244   
  66:3120     67:620      68:676      69:1520     70:390      71:85     
  72:799      74:53       75:1        80:783      81:657      82:635    
  83:392      84:382      85:565      86:362      87:389      88:110    
  89:317     121:1       122:2       123:1       124:263     125:544    
 128:146     129:184     130:119     131:313     132:34      133:8      
 134:160     135:48      136:178     137:82      138:206     139:53     
 140:489     141:134     142:384     143:170     144:225     145:40     
 146:318     147:137     148:342     149:191     150:114     151:93     
 152:69      153:106     154:5       155:206     156:186     157:145    
 158:167     159:171     160:91      161:77      162:246     163:159    
 164:235     165:218     166:173     167:243     168:498     169:128    
 170:351     171:14      183:1       190:83      192:5732    193:3366   
 194:2649    195:1952    196:870     198:3959    199:3236    200:4620   
 201:985     202:6727    203:7054    204:3895    205:2051    206:2424   
 207:2913    208:2183    209:3396    210:2026    211:713     212:1239   
 213:1435    214:367     215:41      216:4005    217:1174    218:294    
 219:226     220:733     221:356     222:189    

End of report



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