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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Jun 30 14:08:32 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@lists.apnic.net

If you have any comments please contact Philip Smith <pfs@cisco.com>.

Routing Table Report   04:00 +10GMT Sat 01 Jul, 2006

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

BGP routing table entries examined:                              191157
    Prefixes after maximum aggregation:                          105349
    Unique aggregates announced to Internet:                      93642
Total ASes present in the Internet Routing Table:                 22571
Origin-only ASes present in the Internet Routing Table:           19635
Origin ASes announcing only one prefix:                            9426
Transit ASes present in the Internet Routing Table:                2936
Transit-only ASes present in the Internet Routing Table:             63
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      24
    Max AS path prepend of ASN (32609)                               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:                   1538359784
    Equivalent to 91 /8s, 177 /16s and 129 /24s
    Percentage of available address space announced:               41.5
    Percentage of allocated address space announced:               60.0
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       94478

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

Prefixes being announced by APNIC Region ASes:                    41147
    Total APNIC prefixes after maximum aggregation:               16948
Prefixes being announced from the APNIC address blocks:           38854
    Unique aggregates announced from the APNIC address blocks:    18463
APNIC Region origin ASes present in the Internet Routing Table:    2619
APNIC Region origin ASes announcing only one prefix:                745
APNIC Region transit ASes present in the Internet Routing Table:    397
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         18
Number of APNIC addresses announced to Internet:              234924896
    Equivalent to 14 /8s, 0 /16s and 171 /24s
    Percentage of available APNIC address space announced:         73.5

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:                     97722
    Total ARIN prefixes after maximum aggregation:                58080
Prefixes being announced from the ARIN address blocks:            71582
    Unique aggregates announced from the ARIN address blocks:     27003
ARIN Region origin ASes present in the Internet Routing Table:    10808
ARIN Region origin ASes announcing only one prefix:                4083
ARIN Region transit ASes present in the Internet Routing Table:     991
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          19
Number of ARIN addresses announced to Internet:               294963200
    Equivalent to 17 /8s, 148 /16s and 200 /24s
    Percentage of available ARIN address space announced:          76.4

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:                     38343
    Total RIPE prefixes after maximum aggregation:                25693
Prefixes being announced from the RIPE address blocks:            35391
    Unique aggregates announced from the RIPE address blocks:     23902
RIPE Region origin ASes present in the Internet Routing Table:     8219
RIPE Region origin ASes announcing only one prefix:                4320
RIPE Region transit ASes present in the Internet Routing Table:    1357
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               255037316
    Equivalent to 15 /8s, 51 /16s and 143 /24s
    Percentage of available RIPE address space announced:          80.0

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:                   11678
    Total LACNIC prefixes after maximum aggregation:               3726
Prefixes being announced from the LACNIC address blocks:           9808
    Unique aggregates announced from the LACNIC address blocks:    5588
LACNIC Region origin ASes present in the Internet Routing Table:    705
LACNIC Region origin ASes announcing only one prefix:               235
LACNIC Region transit ASes present in the Internet Routing Table:   135
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              28064256
    Equivalent to 1 /8s, 172 /16s and 58 /24s
    Percentage of available LACNIC address space announced:        41.8

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:                   2265
    Total AfriNIC prefixes after maximum aggregation:               902
Prefixes being announced from the AfriNIC address blocks:          1522
    Unique aggregates announced from the AfriNIC address blocks:    951
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:   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:              4157952
    Equivalent to 0 /8s, 63 /16s and 114 /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     1243       7294         224   CHINANET-BACKBONE
 4755      945        258          75   Videsh Sanchar Nigam Ltd. Aut
 9583      917        109          15   Sify Limited
 4766      689       4435         303   Korea Telecom (KIX)
 9498      681        211          68   BHARTI BT INTERNET LTD.
 1221      613       1668         470   Telstra Pty Ltd
 7545      547        124          71   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      421         85          24   Reliance Infocom Ltd Internet
17557      383         30         173   Pakistan Telecom
 4802      382         81         169   Wantree Development
17974      382        129          14   PT TELEKOMUNIKASI INDONESIA
 2907      335       1733         311   SINET Japan
 9929      330        255          61   China Netcom Corp.
 7474      297        211         227   SingTel Optus Pty Ltd
10139      283         19           5   Meridian Telekoms
 4837      280       3085         123   chinanet IDC center beijing n
 9800      276        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1482       6262         944   AT&T WorldNet Services
 4323     1330        745         266   Time Warner Telecom
  721     1022      21998         314   DLA Systems Automation Center
 6197     1013        636         481   BellSouth Network Solutions, 
  174      960       5771         894   Cogent Communications
18566      945        272           8   Covad Communications 
  701      944       6754         779   UUNET Technologies, Inc. 
 2386      917        560         711   AT&T Data Communications Serv
 1239      843       2782         599   Sprint 
19262      719       2168         188   Verizon Global Networks 
20115      713        619         381   Charter Communications 
  209      699       3683         552   Qwest 
22773      670       1741          40   Cox Communications, Inc.
 7011      647        217         411   Citizens Utilities 
11492      642         89          10   Cable One 
 6198      600        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      529        147          23   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      566       1948         445   UUNET - Commercial IP service
 3301      312       1327         297   TeliaNet Sweden
 3352      305       1643          30   Ibernet, Internet Access Netw
 3320      284       3988         238   Deutsche Telekom AG
 8220      276        470         265   COLT Telecommunications
  680      246       2041         243   DFN-IP service G-WiN
 6746      239         90         214   Dynamic Network Technologies,
 3246      230        463         220   Song Networks
24863      215         42          10   LINKdotNET AS number
 8708      214        276         203   Romania Data Systems S.A.
 8551      209        198          29   Bezeq International
 3215      202       1728          96   France Telecom Transpac
 3269      202       2184          73   TELECOM ITALIA
30890      199         18          76   SC Kappa Invexim SRL
 1257      194        741         166   SWIPnet Swedish IP Network
 8866      187         37          15   Bulgarian Telecommunication C
 6830      175        813          37   UPC Distribution Services
 3300      169        171          98   AUCS Communications Services 
  786      166       1762         166   The JANET IP Service
12479      161        322           5   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      714       1114         225   UniNet S.A. de C.V. 
22047      419        174          11   VTR PUNTO NET S.A. 
11172      354        111          84   Servicios Alestra S.A de C.V 
16814      328         20           7   NSS, S.A. 
 6147      267        134          22   Telefonica Del Peru 
14117      207         13           7   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 6503      180        151          84   AVANTEL, S.A. 
 7303      176         82          25   Telecom Argentina Stet-France
21826      133         17          23   INTERCABLE 
11556      132         80           4   Cable-Wireless Panama 
19429      129         68          42   E.T.B. 
19169      128          8          24   Telconet 
14259      119         10          15   GTD Internet S.A. 
14522      117         18           9   SatNet S.A. 
23216      115         21           9   RAMtelecom Telecomunicaciones
 6505      109         88          79   Global One Communicaoes Ltda 
 7738      106        410          20   Telecomunicacoes da Bahia S.A
 7910      105          7          10   ANDINET ON LINE 
 5639      103         12           9   Telecommunications Services o

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 
 5536      120          8          21   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
15475      113         84           4   Nile Online
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 
12455       23          6           3   Jambonet Autonomous system
21280       23          4           4   Swift Global Kenya Ltd.Is an 
23889       23          8          11   MAURITIUS TELECOM
 8524       22          1           5   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
33766       21          2           1   Nyala Communications Pty Ltd 

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

  ASN   No of nets  Net Savings Description
 4323      1330        1064      Time Warner Telecom
 4134      1243        1019      CHINANET-BACKBONE
18566       945         937      Covad Communications 
 9583       917         902      Sify Limited
 4755       945         870      Videsh Sanchar Nigam Ltd. Aut
  721      1022         708      DLA Systems Automation Center
11492       642         632      Cable One 
22773       670         630      Cox Communications, Inc.
 9498       681         613      BHARTI BT INTERNET LTD.
 6197      1013         532      BellSouth Network Solutions, 
19262       719         531      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       529         506      CenturyTel Internet Holdings,
17488       519         502      Hathway IP Over Cable Interne
  855       573         499      Canadian Research Network 
 8151       714         489      UniNet S.A. de C.V. 
 7545       547         476      TPG Internet Pty Ltd
 3602       525         421      Sprint Canada, Inc. 
22047       419         408      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

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     /14:364     /15:714     /16:8861    /17:3283    /18:5413    
/19:11801   /20:13418   /21:11686   /22:14848   /23:15929   /24:103384  
/25:389     /26:295     /27:179     /28:65      /29:74      /30:56      
/31:0       /32:40      

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

  ASN   No of nets  Total ann.   Description
18566      928           945      Covad Communications 
 6197      793          1013      BellSouth Network Solutions, 
 7018      791          1482      AT&T WorldNet Services
 9583      747           917      Sify Limited
 4323      644          1330      Time Warner Telecom
 2386      634           917      AT&T Data Communications Serv
11492      630           642      Cable One 
19916      557           563      OLM LLC 
 7011      556           647      Citizens Utilities 
 4766      500           689      Korea Telecom (KIX)
  855      447           573      Canadian Research Network 
 6198      442           600      BellSouth Network Solutions, 
 5668      412           529      CenturyTel Internet Holdings,
15270      409           440      PaeTec.net -a division of Pae
 1239      388           843      Sprint 
 9498      383           681      BHARTI BT INTERNET LTD.
 4755      376           945      Videsh Sanchar Nigam Ltd. Aut
 6517      367           398      Yipes Communications, Inc. 
22773      352           670      Cox Communications, Inc.
  702      351           566      UUNET - Commercial IP service

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

   4:9         8:42       12:1611     13:1        15:16       16:3      
  17:3        18:4        20:41       24:768      25:1        32:58     
  38:229      40:54       41:3        44:3        47:6        52:4      
  55:1        56:3        57:26       58:184      59:246      60:184    
  61:848      62:807      63:1890     64:3172     65:2246     66:3119   
  67:619      68:675      69:1523     70:387      71:85       72:798    
  74:50       75:1        80:778      81:647      82:629      83:393    
  84:374      85:560      86:390      87:378      88:108      89:300    
 121:2       122:2       123:1       124:176     125:529     128:140    
 129:189     130:119     131:312     132:34      133:8       134:160    
 135:48      136:178     137:83      138:207     139:55      140:485    
 141:136     142:385     143:168     144:224     145:39      146:320    
 147:137     148:342     149:191     150:114     151:94      152:69     
 153:106     154:5       155:206     156:183     157:145     158:167    
 159:171     160:90      161:77      162:245     163:159     164:184    
 165:211     166:172     167:243     168:493     169:128     170:352    
 171:14      183:1       190:81      192:5729    193:3365    194:2649   
 195:1934    196:854     198:3957    199:3232    200:4508    201:996    
 202:6718    203:7064    204:3898    205:2044    206:2429    207:2923   
 208:2161    209:3392    210:2061    211:707     212:1221    213:1486   
 214:363     215:41      216:4012    217:1168    218:294     219:240    
 220:731     221:362     222:188    

End of report




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