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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Jun 02 15:00:45 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 03 Jun, 2006

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

BGP routing table entries examined:                              189556
    Prefixes after maximum aggregation:                          104446
    Unique aggregates announced to Internet:                      92837
Total ASes present in the Internet Routing Table:                 22345
Origin-only ASes present in the Internet Routing Table:           19435
Origin ASes announcing only one prefix:                            9305
Transit ASes present in the Internet Routing Table:                2910
Transit-only ASes present in the Internet Routing Table:             57
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      20
    Max AS path prepend of ASN (34527)                               16
Prefixes from unregistered ASNs in the Routing Table:                 4
    Unregistered ASNs in the Routing Table:                           4
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1542073064
    Equivalent to 91 /8s, 234 /16s and 42 /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:       93923

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

Prefixes being announced by APNIC Region ASes:                    40372
    Total APNIC prefixes after maximum aggregation:               16801
Prefixes being announced from the APNIC address blocks:           38110
    Unique aggregates announced from the APNIC address blocks:    18501
APNIC Region origin ASes present in the Internet Routing Table:    2583
APNIC Region origin ASes announcing only one prefix:                736
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:              227213152
    Equivalent to 13 /8s, 138 /16s and 255 /24s
    Percentage of available APNIC address space announced:         71.0

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:                     97628
    Total ARIN prefixes after maximum aggregation:                57717
Prefixes being announced from the ARIN address blocks:            71597
    Unique aggregates announced from the ARIN address blocks:     26551
ARIN Region origin ASes present in the Internet Routing Table:    10749
ARIN Region origin ASes announcing only one prefix:                4048
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:               293134848
    Equivalent to 17 /8s, 120 /16s and 226 /24s
    Percentage of available ARIN address space announced:          76.0

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:                     37920
    Total RIPE prefixes after maximum aggregation:                25349
Prefixes being announced from the RIPE address blocks:            34923
    Unique aggregates announced from the RIPE address blocks:     23582
RIPE Region origin ASes present in the Internet Routing Table:     8105
RIPE Region origin ASes announcing only one prefix:                4243
RIPE Region transit ASes present in the Internet Routing Table:    1343
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               252114564
    Equivalent to 15 /8s, 6 /16s and 246 /24s
    Percentage of available RIPE address space announced:          79.1

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:                   11448
    Total LACNIC prefixes after maximum aggregation:               3681
Prefixes being announced from the LACNIC address blocks:           9542
    Unique aggregates announced from the LACNIC address blocks:    5519
LACNIC Region origin ASes present in the Internet Routing Table:    694
LACNIC Region origin ASes announcing only one prefix:               231
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:                        17
Number of LACNIC addresses announced to Internet:              27208448
    Equivalent to 1 /8s, 159 /16s and 43 /24s
    Percentage of available LACNIC address space announced:        40.5

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:                   2184
    Total AfriNIC prefixes after maximum aggregation:               898
Prefixes being announced from the AfriNIC address blocks:          1505
    Unique aggregates announced from the AfriNIC address blocks:    960
AfriNIC Region origin ASes present in the Internet Routing Table:   157
AfriNIC Region origin ASes announcing only one prefix:               47
AfriNIC Region transit ASes present in the Internet Routing Table:   27
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC addresses announced to Internet:              4108288
    Equivalent to 0 /8s, 62 /16s and 176 /24s
    Percentage of available AfriNIC address space announced:       12.2

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     1203       7140         222   CHINANET-BACKBONE
 9583      900        109          16   Sify Limited
 4755      868        257          67   Videsh Sanchar Nigam Ltd. Aut
 4766      690       4435         304   Korea Telecom (KIX)
 1221      613       1668         471   Telstra Pty Ltd
 9498      566        211          67   BHARTI BT INTERNET LTD.
 7545      534        124          70   TPG Internet Pty Ltd
17488      514         32           9   Hathway IP Over Cable Interne
17676      486       7029         110   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
18101      411         85          24   Reliance Infocom Ltd Internet
17557      391         30         178   Pakistan Telecom
 4802      377         80         172   Wantree Development
17849      359         22         114   Telecommunications Technology
17974      350        119          17   PT TELEKOMUNIKASI INDONESIA
 2907      334       1733         311   SINET Japan
 9929      325        221          57   China Netcom Corp.
 7474      298        211         228   SingTel Optus Pty Ltd
 9800      274        410          67   CHINA UNICOM
 9837      267         78         160   Powertel Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1492       6216         953   AT&T WorldNet Services
 4323     1303        739         260   Time Warner Telecom
  721     1013      21977         309   DLA Systems Automation Center
 6197     1008        625         471   BellSouth Network Solutions, 
  174      968       5787         904   Cogent Communications
  701      947       6782         781   UUNET Technologies, Inc. 
19029      947        151         109   New Edge Networks 
18566      942        272           8   Covad Communications 
 2386      891        523         686   AT&T Data Communications Serv
 1239      844       2789         599   Sprint 
20115      709        613         379   Charter Communications 
19262      708       2106         173   Verizon Global Networks 
  209      706       3687         550   Qwest 
22773      661       1741          40   Cox Communications, Inc.
 7011      637        218         415   Citizens Utilities 
11492      631         87          21   Cable One 
  852      580       1084         381   Telus Advanced Communications
 6478      572       1543         339   AT&T Worldnet Services 
19916      563         49          54   OLM LLC 
  855      553        244          64   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      575       1951         453   UUNET - Commercial IP service
 3352      309       1644          30   Ibernet, Internet Access Netw
 3301      305       1327         292   TeliaNet Sweden
 3320      287       3989         240   Deutsche Telekom AG
 8220      277        471         265   COLT Telecommunications
  680      245       2025         242   DFN-IP service G-WiN
 6746      240         90         214   Dynamic Network Technologies,
 3246      235        504         225   Song Networks
 8708      216        275         201   Romania Data Systems S.A.
24863      212         42          10   LINKdotNET AS number
 3215      200       1680          93   France Telecom Transpac
 8551      200        198          24   Bezeq International
 3269      198       2134          72   TELECOM ITALIA
 1257      190        740         166   SWIPnet Swedish IP Network
30890      190         17          71   SC Kappa Invexim SRL
 8866      180         37          15   Bulgarian Telecommunication C
 5400      172        348         141   BT Ignite European Backbone
 6830      172        781          36   UPC Distribution Services
 9121      172        931          28   TTnet Autonomous System
  786      170       1762         170   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      706       1082         224   UniNet S.A. de C.V. 
22047      418        158          11   VTR PUNTO NET S.A. 
11172      351        110          83   Servicios Alestra S.A de C.V 
16814      330         20           8   NSS, S.A. 
 6147      262        126          22   Telefonica Del Peru 
14117      201         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      172         80          25   Telecom Argentina Stet-France
 6503      133        150          81   AVANTEL, S.A. 
21826      133         17          23   INTERCABLE 
11556      132         80           4   Cable-Wireless Panama 
19169      129          8          21   Telconet 
14259      119         10          15   GTD Internet S.A. 
14522      113         16           5   SatNet S.A. 
23216      113         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      285        803         233   The Internet Solution 
 8452      167         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      117         50           7   RAYA Telecom - Egypt
33783      104          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
20928       58         16           2   Noor Advanced Technologies AS
15475       54         84           4   Nile Online
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       24         14          22   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      1303        1043      Time Warner Telecom
 4134      1203         981      CHINANET-BACKBONE
18566       942         934      Covad Communications 
 9583       900         884      Sify Limited
19029       947         838      New Edge Networks 
 4755       868         801      Videsh Sanchar Nigam Ltd. Aut
  721      1013         704      DLA Systems Automation Center
22773       661         621      Cox Communications, Inc.
11492       631         610      Cable One 
 6197      1008         537      BellSouth Network Solutions, 
19262       708         535      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       530         507      CenturyTel Internet Holdings,
17488       514         505      Hathway IP Over Cable Interne
 9498       566         499      BHARTI BT INTERNET LTD.
  855       553         489      Canadian Research Network 
 8151       706         482      UniNet S.A. de C.V. 
 7545       534         464      TPG Internet Pty Ltd
 3602       526         421      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
64515   PRIVATE       203.126.13.0/25       7610       SINGAPORE ADVANCE RE
64515   PRIVATE       203.126.13.128/26     7610       SINGAPORE ADVANCE RE

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     /15:705     /16:8836    /17:3237    /18:5367    
/19:11704   /20:13212   /21:11503   /22:14688   /23:15831   /24:102689  
/25:367     /26:290     /27:186     /28:65      /29:71      /30:48      
/31:0       /32:41      

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

  ASN   No of nets  Total ann.   Description
18566      925           942      Covad Communications 
19029      878           947      New Edge Networks 
 6197      793          1008      BellSouth Network Solutions, 
 7018      782          1492      AT&T WorldNet Services
 9583      729           900      Sify Limited
 4323      636          1303      Time Warner Telecom
11492      622           631      Cable One 
 2386      614           891      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      546           637      Citizens Utilities 
 4766      500           690      Korea Telecom (KIX)
  855      427           553      Canadian Research Network 
 5668      413           530      CenturyTel Internet Holdings,
15270      401           432      PaeTec.net -a division of Pae
 1239      391           844      Sprint 
 6517      363           394      Yipes Communications, Inc. 
17849      359           359      Telecommunications Technology
  702      358           575      UUNET - Commercial IP service
 6198      355           508      BellSouth Network Solutions, 
 8151      349           706      UniNet S.A. de C.V. 

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

   4:9         8:42       11:1        12:1625     13:1        15:14     
  16:3        17:3        18:4        20:43       24:741      25:1      
  32:58       38:228      40:54       41:3        44:3        47:6      
  52:4        55:1        56:3        57:25       58:180      59:202    
  60:183      61:866      62:749      63:1914     64:3182     65:2254   
  66:3053     67:613      68:668      69:1523     70:371      71:80     
  72:745      74:39       80:777      81:657      82:585      83:393    
  84:388      85:538      86:386      87:355      88:86       89:236    
 124:292     125:473     128:157     129:190     130:116     131:317    
 132:33      133:8       134:159     135:48      136:178     137:78     
 138:206     139:61      140:470     141:129     142:382     143:165    
 144:223     145:39      146:327     147:136     148:318     149:188    
 150:114     151:94      152:69      153:107     154:5       155:202    
 156:99      157:150     158:167     159:172     160:89      161:76     
 162:245     163:147     164:178     165:198     166:166     167:244    
 168:490     169:128     170:339     171:14      183:1       190:75     
 192:5745    193:3369    194:2634    195:1884    196:852     198:3905   
 199:3219    200:4467    201:965     202:6661    203:6970    204:3778   
 205:2049    206:2413    207:2896    208:2127    209:3785    210:1956   
 211:676     212:1259    213:1458    214:367     215:40      216:4156   
 217:1158    218:287     219:226     220:714     221:357     222:159    


End of report




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