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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Jun 09 14:11:44 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 10 Jun, 2006

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

BGP routing table entries examined:                              190168
    Prefixes after maximum aggregation:                          104652
    Unique aggregates announced to Internet:                      93198
Total ASes present in the Internet Routing Table:                 22396
Origin-only ASes present in the Internet Routing Table:           19479
Origin ASes announcing only one prefix:                            9338
Transit ASes present in the Internet Routing Table:                2917
Transit-only ASes present in the Internet Routing Table:             60
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:                 7
    Unregistered ASNs in the Routing Table:                           5
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1543668456
    Equivalent to 92 /8s, 2 /16s and 130 /24s
    Percentage of available address space announced:               41.6
    Percentage of allocated address space announced:               60.2
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       94114

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

Prefixes being announced by APNIC Region ASes:                    40710
    Total APNIC prefixes after maximum aggregation:               16880
Prefixes being announced from the APNIC address blocks:           38424
    Unique aggregates announced from the APNIC address blocks:    18579
APNIC Region origin ASes present in the Internet Routing Table:    2598
APNIC Region origin ASes announcing only one prefix:                747
APNIC Region transit ASes present in the Internet Routing Table:    398
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         18
Number of APNIC addresses announced to Internet:              227781728
    Equivalent to 13 /8s, 147 /16s and 172 /24s
    Percentage of available APNIC address space announced:         71.2

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:                     97710
    Total ARIN prefixes after maximum aggregation:                57771
Prefixes being announced from the ARIN address blocks:            71728
    Unique aggregates announced from the ARIN address blocks:     26653
ARIN Region origin ASes present in the Internet Routing Table:    10759
ARIN Region origin ASes announcing only one prefix:                4051
ARIN Region transit ASes present in the Internet Routing Table:     993
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               293558272
    Equivalent to 17 /8s, 127 /16s and 88 /24s
    Percentage of available ARIN address space announced:          76.1

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:                     38053
    Total RIPE prefixes after maximum aggregation:                25405
Prefixes being announced from the RIPE address blocks:            35075
    Unique aggregates announced from the RIPE address blocks:     23703
RIPE Region origin ASes present in the Internet Routing Table:     8129
RIPE Region origin ASes announcing only one prefix:                4266
RIPE Region transit ASes present in the Internet Routing Table:    1342
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               252474756
    Equivalent to 15 /8s, 12 /16s and 117 /24s
    Percentage of available RIPE address space announced:          79.2

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:                   11498
    Total LACNIC prefixes after maximum aggregation:               3701
Prefixes being announced from the LACNIC address blocks:           9595
    Unique aggregates announced from the LACNIC address blocks:    5546
LACNIC Region origin ASes present in the Internet Routing Table:    695
LACNIC Region origin ASes announcing only one prefix:               229
LACNIC Region transit ASes present in the Internet Routing Table:   133
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              27317760
    Equivalent to 1 /8s, 160 /16s and 214 /24s
    Percentage of available LACNIC address space announced:        40.7

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:                   2190
    Total AfriNIC prefixes after maximum aggregation:               895
Prefixes being announced from the AfriNIC address blocks:          1501
    Unique aggregates announced from the AfriNIC address blocks:    961
AfriNIC Region origin ASes present in the Internet Routing Table:   155
AfriNIC Region origin ASes announcing only one prefix:               45
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:                       16
Number of AfriNIC addresses announced to Internet:              4113152
    Equivalent to 0 /8s, 62 /16s and 195 /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     1242       7204         228   CHINANET-BACKBONE
 4755      931        259          74   Videsh Sanchar Nigam Ltd. Aut
 9583      903        109          16   Sify Limited
 4766      690       4435         304   Korea Telecom (KIX)
 1221      613       1668         471   Telstra Pty Ltd
 9498      571        211          67   BHARTI BT INTERNET LTD.
 7545      544        124          70   TPG Internet Pty Ltd
17488      519         32          10   Hathway IP Over Cable Interne
17676      486       7029         110   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
18101      414         85          24   Reliance Infocom Ltd Internet
17557      397         31         178   Pakistan Telecom
 4802      378         80         167   Wantree Development
17849      359         22         114   Telecommunications Technology
17974      347        129          14   PT TELEKOMUNIKASI INDONESIA
 2907      336       1733         312   SINET Japan
 9929      326        222          58   China Netcom Corp.
 7474      298        211         228   SingTel Optus Pty Ltd
 9800      275        410          67   CHINA UNICOM
 4837      266       2994         112   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1480       6151         945   AT&T WorldNet Services
 4323     1310        740         259   Time Warner Telecom
  721     1014      21998         313   DLA Systems Automation Center
 6197     1005        625         471   BellSouth Network Solutions, 
  174      969       5787         904   Cogent Communications
19029      945        151         108   New Edge Networks 
18566      943        272           8   Covad Communications 
  701      940       6753         776   UUNET Technologies, Inc. 
 2386      894        557         687   AT&T Data Communications Serv
 1239      846       2789         600   Sprint 
20115      713        617         381   Charter Communications 
  209      707       3687         551   Qwest 
19262      667       2103         183   Verizon Global Networks 
22773      664       1741          40   Cox Communications, Inc.
 7011      638        218         415   Citizens Utilities 
11492      622         87          22   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      573       1951         451   UUNET - Commercial IP service
 3301      305       1327         292   TeliaNet Sweden
 3352      305       1644          30   Ibernet, Internet Access Netw
 3320      287       3989         240   Deutsche Telekom AG
 8220      274        470         262   COLT Telecommunications
  680      245       2025         242   DFN-IP service G-WiN
 6746      238         90         212   Dynamic Network Technologies,
 3246      236        504         226   Song Networks
 8708      216        275         201   Romania Data Systems S.A.
24863      214         42          11   LINKdotNET AS number
 3269      201       2182          72   TELECOM ITALIA
 3215      200       1680          93   France Telecom Transpac
 8551      200        198          24   Bezeq International
30890      193         17          71   SC Kappa Invexim SRL
 1257      190        740         166   SWIPnet Swedish IP Network
 8866      180         37          15   Bulgarian Telecommunication C
 6830      172        781          36   UPC Distribution Services
  786      171       1778         171   The JANET IP Service
 5400      171        348         140   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      705       1082         224   UniNet S.A. de C.V. 
22047      419        158          11   VTR PUNTO NET S.A. 
11172      352        110          84   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
 6147      267        134          22   Telefonica Del Peru 
14117      201         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      175         81          25   Telecom Argentina Stet-France
 6503      136        151          82   AVANTEL, S.A. 
21826      133         17          23   INTERCABLE 
11556      132         80           4   Cable-Wireless Panama 
19169      126          8          26   Telconet 
14259      119         10          15   GTD Internet S.A. 
14522      115         18           9   SatNet S.A. 
23216      114         21           9   RAMtelecom Telecomunicaciones
19429      110         60          44   E.T.B. 
 6505      109         88          79   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
 5639      103         12           9   Telecommunications Services o
18822       98          7           9   TELEFONICA MANQUEHUE 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      286        803         234   The Internet Solution 
 8452      166         60           7   TEDATA
 6713      147        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      104          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
15475       61         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
12455       26          6           3   Jambonet Autonomous system
23889       26          8          11   MAURITIUS TELECOM
16637       25         18          23   Johnnic e-Ventures 
 8524       22          1           5   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
21280       21          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      1310        1051      Time Warner Telecom
 4134      1242        1014      CHINANET-BACKBONE
18566       943         935      Covad Communications 
 9583       903         887      Sify Limited
 4755       931         857      Videsh Sanchar Nigam Ltd. Aut
19029       945         837      New Edge Networks 
  721      1014         701      DLA Systems Automation Center
22773       664         624      Cox Communications, Inc.
11492       622         600      Cable One 
 6197      1005         534      BellSouth Network Solutions, 
19916       563         509      OLM LLC 
17488       519         509      Hathway IP Over Cable Interne
 5668       529         506      CenturyTel Internet Holdings,
 9498       571         504      BHARTI BT INTERNET LTD.
  855       550         486      Canadian Research Network 
19262       667         484      Verizon Global Networks 
 8151       705         481      UniNet S.A. de C.V. 
 7545       544         474      TPG Internet Pty Ltd
 3602       525         421      Sprint Canada, Inc. 
22047       419         408      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
64515   PRIVATE       203.126.13.0/25       7610       SINGAPORE ADVANCE RE
64515   PRIVATE       203.126.13.128/26     7610       SINGAPORE ADVANCE RE
65280   PRIVATE       203.197.161.0/24      4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.14.0/24       4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.21.0/24       4755       Videsh Sanchar Nigam

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        /8:18       /9:9       /10:9       /11:28      /12:92      
/13:200     /14:360     /15:704     /16:8855    /17:3247    /18:5351    
/19:11723   /20:13263   /21:11524   /22:14724   /23:15902   /24:103048  
/25:387     /26:314     /27:182     /28:69      /29:67      /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      790          1005      BellSouth Network Solutions, 
 7018      780          1480      AT&T WorldNet Services
 9583      733           903      Sify Limited
 4323      641          1310      Time Warner Telecom
 2386      613           894      AT&T Data Communications Serv
11492      613           622      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      403           434      PaeTec.net -a division of Pae
 1239      390           846      Sprint 
 4755      365           931      Videsh Sanchar Nigam Ltd. Aut
 6517      364           395      Yipes Communications, Inc. 
17849      359           359      Telecommunications Technology
  702      356           573      UUNET - Commercial IP service
 6198      354           508      BellSouth Network Solutions, 

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

   4:9         8:42       11:1        12:1618     13:1        15:15     
  16:3        17:3        18:4        20:41       24:734      25:1      
  32:57       38:229      40:54       41:3        44:3        47:6      
  52:4        55:1        56:3        57:25       58:183      59:217    
  60:182      61:863      62:775      63:1911     64:3173     65:2181   
  66:3061     67:613      68:663      69:1531     70:376      71:80     
  72:756      74:40       80:788      81:647      82:594      83:401    
  84:387      85:543      86:390      87:358      88:96       89:240    
 124:295     125:494     128:158     129:190     130:78      131:318    
 132:33      133:8       134:157     135:48      136:178     137:82     
 138:206     139:62      140:469     141:130     142:379     143:165    
 144:223     145:40      146:329     147:136     148:318     149:188    
 150:112     151:94      152:69      153:107     154:5       155:202    
 156:98      157:146     158:168     159:173     160:89      161:76     
 162:245     163:150     164:179     165:208     166:168     167:246    
 168:491     169:128     170:338     171:14      183:1       190:75     
 192:5744    193:3368    194:2640    195:1909    196:855     198:3910   
 199:3214    200:4487    201:978     202:6698    203:7034    204:3901   
 205:2033    206:2421    207:2901    208:2128    209:3776    210:1973   
 211:683     212:1259    213:1469    214:364     215:40      216:4177   
 217:1156    218:291     219:232     220:717     221:360     222:158    


End of report




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