[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Jun 2 04:03:33 EST 2007


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

For historical data, please see http://thyme.apnic.net.

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

Routing Table Report   04:00 +10GMT Sat 02 Jun, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/06/02/0400

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

BGP routing table entries examined:                              222527
    Prefixes after maximum aggregation:                          118143
    Deaggregation factor:                                          1.88
    Unique aggregates announced to Internet:                     107718
Total ASes present in the Internet Routing Table:                 25331
    Prefixes per ASN:                                              8.78
Origin-only ASes present in the Internet Routing Table:           22061
Origin ASes announcing only one prefix:                           10698
Transit ASes present in the Internet Routing Table:                3270
Transit-only ASes present in the Internet Routing Table:             79
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      22
    Max AS path prepend of ASN (35389)                               16
Prefixes from unregistered ASNs in the Routing Table:                 4
    Unregistered ASNs in the Routing Table:                           6
Prefixes from 32-bit ASNs in the Routing Table:                       7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1727916640
    Equivalent to 102 /8s, 253 /16s and 234 /24s
    Percentage of available address space announced:               46.6
    Percentage of allocated address space announced:               61.8
    Percentage of available address space allocated:               75.5
Total number of prefixes smaller than registry allocations:      116970

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

Prefixes being announced by APNIC Region ASes:                    51280
    Total APNIC prefixes after maximum aggregation:               20366
    APNIC Deaggregation factor:                                    2.52
Prefixes being announced from the APNIC address blocks:           48238
    Unique aggregates announced from the APNIC address blocks:    21361
APNIC Region origin ASes present in the Internet Routing Table:    2956
    APNIC Prefixes per ASN:                                       16.32
APNIC Region origin ASes announcing only one prefix:                791
APNIC Region transit ASes present in the Internet Routing Table:    449
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              296333216
    Equivalent to 17 /8s, 169 /16s and 175 /24s
    Percentage of available APNIC address space announced:         73.4

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, 116/6, 120/6, 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:                    106864
    Total ARIN prefixes after maximum aggregation:                62339
    ARIN Deaggregation factor:                                     1.71
Prefixes being announced from the ARIN address blocks:            78779
    Unique aggregates announced from the ARIN address blocks:     30822
ARIN Region origin ASes present in the Internet Routing Table:    11600
    ARIN Prefixes per ASN:                                         6.79
ARIN Region origin ASes announcing only one prefix:                4462
ARIN Region transit ASes present in the Internet Routing Table:    1055
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          21
Number of ARIN addresses announced to Internet:               334613120
    Equivalent to 19 /8s, 241 /16s and 202 /24s
    Percentage of available ARIN address space announced:          73.9

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, 96/6, 199/8, 204/6,
                       208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     46341
    Total RIPE prefixes after maximum aggregation:                30274
    RIPE Deaggregation factor:                                     1.53
Prefixes being announced from the RIPE address blocks:            42871
    Unique aggregates announced from the RIPE address blocks:     28438
RIPE Region origin ASes present in the Internet Routing Table:     9708
    RIPE Prefixes per ASN:                                         4.42
RIPE Region origin ASes announcing only one prefix:                5135
RIPE Region transit ASes present in the Internet Routing Table:    1557
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               310116352
    Equivalent to 18 /8s, 124 /16s and 0 /24s
    Percentage of available RIPE address space announced:          77.0

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
                       40960-44031
RIPE Address Blocks    62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
                       212/7 and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   15435
    Total LACNIC prefixes after maximum aggregation:               4150
    LACNIC Deaggregation factor:                                   3.72
Prefixes being announced from the LACNIC address blocks:          13551
    Unique aggregates announced from the LACNIC address blocks:    7305
LACNIC Region origin ASes present in the Internet Routing Table:    798
    LACNIC Prefixes per ASN:                                      16.98
LACNIC Region origin ASes announcing only one prefix:               256
LACNIC Region transit ASes present in the Internet Routing Table:   143
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        18
Number of LACNIC addresses announced to Internet:              39014144
    Equivalent to 2 /8s, 83 /16s and 79 /24s
    Percentage of available LACNIC address space announced:        58.1

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:                   2597
    Total AfriNIC prefixes after maximum aggregation:              1002
    AfriNIC Deaggregation factor:                                  2.59
Prefixes being announced from the AfriNIC address blocks:          1974
    Unique aggregates announced from the AfriNIC address blocks:   1180
AfriNIC Region origin ASes present in the Internet Routing Table:   189
    AfriNIC Prefixes per ASN:                                     10.44
AfriNIC Region origin ASes announcing only one prefix:               54
AfriNIC Region transit ASes present in the Internet Routing Table:   37
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              6123264
    Equivalent to 0 /8s, 93 /16s and 111 /24s
    Percentage of available AfriNIC address space announced:       18.2

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     1289       9975         279   CHINANET-BACKBONE
 4755     1225        382          72   Videsh Sanchar Nigam Ltd. Aut
 9583     1106         79         386   Sify Limited
 9498      984        469          68   BHARTI BT INTERNET LTD.
 4766      786       4943         312   Korea Telecom (KIX)
23577      779         35         706   Korea Telecom (ATM-MPLS)
17488      698         45          39   Hathway IP Over Cable Interne
 7545      628        142          78   TPG Internet Pty Ltd
18101      554        117          35   Reliance Infocom Ltd Internet
 1221      551       1954         425   Telstra Pty Ltd
 4668      507         68          10   LG-EDS Systems Inc.
17676      504      10935          65   Softbank BB Corp.
 9443      467        121          77   Primus Telecommunications
 4812      463        837          77   China Telecom (Shanghai)
 7474      410        218         269   SingTel Optus Pty Ltd
 4802      409         86         148   Wantree Development
 9829      362        258          15   BSNL National Internet Backbo
 2907      360       1700         302   SINET Japan
17557      357         41         170   Pakistan Telecom
17974      343        129          12   PT TELEKOMUNIKASI INDONESIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1501       6144         992   AT&T WorldNet Services
 4323     1274       1033         367   Time Warner Telecom
 2386     1153        597         760   AT&T Data Communications Serv
 6478     1078        354         179   AT&T Worldnet Services 
11492     1073        104          24   Cable One 
 6197     1041        707         509   BellSouth Network Solutions, 
18566     1010        288           9   Covad Communications 
  701      957       6614         733   UUNET Technologies, Inc. 
  174      955       6777         866   Cogent Communications
 1239      807       2731         573   Sprint 
20115      807        725         429   Charter Communications 
 7011      804        228         481   Citizens Utilities 
19262      775       2694         207   Verizon Global Networks 
  209      740       3836         581   Qwest 
22773      721       1892          44   Cox Communications, Inc.
 7029      604        488          80   Alltel Information Services, 
 5668      600        160          17   CenturyTel Internet Holdings,
 7385      598        166         465   Linkport Communications 
  852      589       1090         371   Telus Advanced Communications
  721      568      21659         266   DLA Systems Automation Center

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      519       1939         410   UUNET - Commercial IP service
 2119      509        918         381   Telenor Internet Access
24863      345         47          32   LINKdotNET AS number
 3301      310       1455         289   TeliaNet Sweden
 3320      303       4994         253   Deutsche Telekom AG
 6746      279        128         255   Dynamic Network Technologies,
  680      260       2044         251   DFN-IP service G-WiN
 8220      251        460         242   COLT Telecommunications
 3215      246       2280          94   France Telecom Transpac
 8708      237        416         230   Romania Data Systems S.A.
 5089      221       1658          53   NTL Group Limited
 3269      216       2647          74   TELECOM ITALIA
 3352      211       1863          34   Ibernet, Internet Access Netw
 9121      210       1441          24   TTnet Autonomous System
 8551      207        197          27   Bezeq International
 3246      200        334         190   Song Networks
 9116      198        136          25   Goldenlines main autonomous s
 1257      196       1196         174   SWIPnet Swedish IP Network
12479      185        578           6   Uni2 Autonomous System
30890      183         15          90   SC Kappa Invexim SRL

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1325       1855         209   UniNet S.A. de C.V. 
11830      483        299          19   Instituto Costarricense de El
11172      367        116          63   Servicios Alestra S.A de C.V 
16814      361         22           8   NSS, S.A. 
22047      317        238          12   VTR PUNTO NET S.A. 
 7303      288        143          29   Telecom Argentina Stet-France
 6471      268         74          32   ENTEL CHILE S.A. 
14117      244         17          14   Telefonica del Sur S.A. 
11556      229        128           3   Cable-Wireless Panama 
 6147      224        168          25   Telefonica Del Peru 
 6503      213        188          84   AVANTEL, S.A. 
20299      195         23          12   NEWCOM AMERICAS 
10620      187         53          25   TVCABLE BOGOTA 
10481      181         72           8   Prima S.A. 
14522      167         27           8   SatNet S.A. 
 7910      157         11          31   ANDINET ON LINE 
23216      157         19          42   RAMtelecom Telecomunicaciones
19429      155         95          44   E.T.B. 
21826      155         27          59   INTERCABLE 
 7738      144        474          22   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      277        866         219   The Internet Solution 
 8452      229        188           7   TEDATA
 6713      143        135          11   Itissalat Al-MAGHRIB
 2018      136        301         111   Tertiary Education Network 
15475      136         84           4   Nile Online
 5536      123          8          15   Internet Egypt Network
33783      120          8           9   EEPAD TISP TELECOM & INTERNET
24835       85         48           6   RAYA Telecom - Egypt
 2905       77        174          73   The Internetworking Company o
 2561       61          6           2   Egyptian Universities Network
15706       56         12           4   Sudatel Internet Exchange Aut
23889       49         16          13   MAURITIUS TELECOM
 5713       44        294          34   Telkom SA Ltd 
33774       42         13          23   AS Number for Telecom Algeria
16637       37         21          29   Johnnic e-Ventures 
 8524       32          2           8   AUCEGYPT Autonomous System
33776       31          2           6   Starcomms Nigeria Limited
21280       27          4           4   Swift Global Kenya Ltd.Is an 
33766       26          2           1   Nyala Communications Pty Ltd 
12455       25          6           3   Jambonet Autonomous system

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

  ASN   No of nets  Net Savings Description
 4755      1225        1153      Videsh Sanchar Nigam Ltd. Aut
 8151      1325        1116      UniNet S.A. de C.V. 
11492      1073        1049      Cable One 
 4134      1289        1010      CHINANET-BACKBONE
18566      1010        1001      Covad Communications 
 9498       984         916      BHARTI BT INTERNET LTD.
 4323      1274         907      Time Warner Telecom
 6478      1078         899      AT&T Worldnet Services 
 9583      1106         720      Sify Limited
22773       721         677      Cox Communications, Inc.
17488       698         659      Hathway IP Over Cable Interne
 5668       600         583      CenturyTel Internet Holdings,
19262       775         568      Verizon Global Networks 
 7545       628         550      TPG Internet Pty Ltd
 6197      1041         532      BellSouth Network Solutions, 
 7029       604         524      Alltel Information Services, 
18101       554         519      Reliance Infocom Ltd Internet
19916       568         517      OLM LLC 
15270       543         508      PaeTec.net -a division of Pae
  855       568         497      Canadian Research Network 

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

Bad AS  Designation  Network              Transit AS  Description
65019   PRIVATE       63.138.117.0/24      19034       Norcom Networks Corp
65332   PRIVATE       63.166.106.192/27     1803       SPRINT 
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE
22895   UNALLOCATED   216.174.38.0/24      19094       Adelphia Business So

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
7.1.1.0/24            1239     Sprint 
94.110.196.0/24      21161     Bechtle Autonomous System
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
172.33.1.0/24         7018     AT&T WorldNet Services
192.0.10.0/24         9498     BHARTI BT INTERNET LTD.
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 
192.153.136.0/21       721     DLA Systems Automation Center
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        /8:19       /9:9       /10:14      /11:35      /12:123     
/13:238     /14:452     /15:873     /16:9430    /17:3979    /18:6386    
/19:13513   /20:15516   /21:14079   /22:18333   /23:19506   /24:117823  
/25:780     /26:839     /27:478     /28:68      /29:9       /30:13      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
 6478     1068          1078      AT&T Worldnet Services 
11492     1064          1073      Cable One 
18566      992          1010      Covad Communications 
 9583      944          1106      Sify Limited
 2386      850          1153      AT&T Data Communications Serv
 7018      809          1501      AT&T WorldNet Services
 6197      795          1041      BellSouth Network Solutions, 
23577      765           779      Korea Telecom (ATM-MPLS)
 7011      705           804      Citizens Utilities 
 8151      704          1325      UniNet S.A. de C.V. 
 9498      654           984      BHARTI BT INTERNET LTD.
 4755      623          1225      Videsh Sanchar Nigam Ltd. Aut
 4766      593           786      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4323      522          1274      Time Warner Telecom
17488      519           698      Hathway IP Over Cable Interne
15270      510           543      PaeTec.net -a division of Pae
 4668      497           507      LG-EDS Systems Inc.
18101      470           554      Reliance Infocom Ltd Internet
  855      466           568      Canadian Research Network 

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

   4:9         7:1         8:74        9:1        12:1804     15:19     
  16:3        17:3        18:8        20:38       24:948      25:1      
  32:52       33:2        38:318      40:61       41:150      44:2      
  47:5        52:4        55:3        56:3        57:24       58:410    
  59:397      60:302      61:966      62:897      63:1974     64:3113   
  65:2359     66:3297     67:811      68:634      69:1873     70:521    
  71:107      72:1326     73:1        74:482      75:264      76:75     
  77:226      78:2        80:821      81:818      82:645      83:413    
  84:410      85:804      86:341      87:449      88:275      89:874    
  90:7        91:323      94:1        97:6        98:3       116:97     
 121:156     122:534     123:107     124:816     125:943     128:283    
 129:224     130:130     131:366     132:52      133:9       134:192    
 135:38      136:185     137:80      138:140     139:70      140:478    
 141:171     142:370     143:233     144:293     145:43      146:312    
 147:118     148:398     149:143     150:114     151:159     152:92     
 153:123     154:4       155:254     156:152     157:185     158:158    
 159:157     160:107     161:91      162:233     163:185     164:451    
 165:403     166:240     167:284     168:502     169:120     170:402    
 171:16      172:1       189:550     190:638     192:5771    193:3869   
 194:3143    195:2239    196:937     198:3749    199:3285    200:4837   
 201:1050    202:7326    203:7523    204:3972    205:2034    206:2362   
 207:2857    208:2705    209:3578    210:2470    211:967     212:1321   
 213:1469    214:408     215:40      216:4036    217:1158    218:352    
 219:381     220:958     221:401     222:263    

End of report



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