[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 6 18:03:43 UTC 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 07 Jul, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/07/07/0400

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

BGP routing table entries examined:                              224940
    Prefixes after maximum aggregation:                          118452
    Deaggregation factor:                                          1.90
    Unique aggregates announced to Internet:                     109238
Total ASes present in the Internet Routing Table:                 25608
    Prefixes per ASN:                                              8.78
Origin-only ASes present in the Internet Routing Table:           22305
Origin ASes announcing only one prefix:                           10844
Transit ASes present in the Internet Routing Table:                3303
Transit-only ASes present in the Internet Routing Table:             71
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      21
    Max AS path prepend of ASN (35389)                               16
Prefixes from unregistered ASNs in the Routing Table:                 5
    Unregistered ASNs in the Routing Table:                           8
Prefixes from 32-bit ASNs in the Routing Table:                       5
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             11
Number of addresses announced to Internet:                   1732627296
    Equivalent to 103 /8s, 69 /16s and 203 /24s
    Percentage of available address space announced:               46.7
    Percentage of allocated address space announced:               61.9
    Percentage of available address space allocated:               75.5
Total number of prefixes smaller than registry allocations:      118245

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

Prefixes being announced by APNIC Region ASes:                    52740
    Total APNIC prefixes after maximum aggregation:               20549
    APNIC Deaggregation factor:                                    2.57
Prefixes being announced from the APNIC address blocks:           49622
    Unique aggregates announced from the APNIC address blocks:    21775
APNIC Region origin ASes present in the Internet Routing Table:    2997
    APNIC Prefixes per ASN:                                       16.56
APNIC Region origin ASes announcing only one prefix:                802
APNIC Region transit ASes present in the Internet Routing Table:    456
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         21
Number of APNIC addresses announced to Internet:              301953440
    Equivalent to 17 /8s, 255 /16s and 113 /24s
    Percentage of available APNIC address space announced:         74.8

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, 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:                    107095
    Total ARIN prefixes after maximum aggregation:                62227
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:            78778
    Unique aggregates announced from the ARIN address blocks:     31062
ARIN Region origin ASes present in the Internet Routing Table:    11665
    ARIN Prefixes per ASN:                                         6.75
ARIN Region origin ASes announcing only one prefix:                4495
ARIN Region transit ASes present in the Internet Routing Table:    1062
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               338547520
    Equivalent to 20 /8s, 45 /16s and 211 /24s
    Percentage of available ARIN address space announced:          74.7

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:                     47138
    Total RIPE prefixes after maximum aggregation:                30397
    RIPE Deaggregation factor:                                     1.55
Prefixes being announced from the RIPE address blocks:            43530
    Unique aggregates announced from the RIPE address blocks:     28835
RIPE Region origin ASes present in the Internet Routing Table:     9860
    RIPE Prefixes per ASN:                                         4.41
RIPE Region origin ASes announcing only one prefix:                5223
RIPE Region transit ASes present in the Internet Routing Table:    1570
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               321193280
    Equivalent to 19 /8s, 37 /16s and 5 /24s
    Percentage of available RIPE address space announced:          79.8

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:                   15414
    Total LACNIC prefixes after maximum aggregation:               4257
    LACNIC Deaggregation factor:                                   3.62
Prefixes being announced from the LACNIC address blocks:          13442
    Unique aggregates announced from the LACNIC address blocks:    7607
LACNIC Region origin ASes present in the Internet Routing Table:    821
    LACNIC Prefixes per ASN:                                      16.37
LACNIC Region origin ASes announcing only one prefix:               266
LACNIC Region transit ASes present in the Internet Routing Table:   144
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              40256000
    Equivalent to 2 /8s, 102 /16s and 66 /24s
    Percentage of available LACNIC address space announced:        60.0

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:                   2546
    Total AfriNIC prefixes after maximum aggregation:              1012
    AfriNIC Deaggregation factor:                                  2.52
Prefixes being announced from the AfriNIC address blocks:          2033
    Unique aggregates announced from the AfriNIC address blocks:   1243
AfriNIC Region origin ASes present in the Internet Routing Table:   193
    AfriNIC Prefixes per ASN:                                     10.53
AfriNIC Region origin ASes announcing only one prefix:               58
AfriNIC Region transit ASes present in the Internet Routing Table:   36
Average AfriNIC Region AS path length visible:                      3.7
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              6277888
    Equivalent to 0 /8s, 95 /16s and 203 /24s
    Percentage of available AfriNIC address space announced:       18.7

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     1349      10237         282   CHINANET-BACKBONE
 4755     1265        382          71   Videsh Sanchar Nigam Ltd. Aut
 9583     1112         79         396   Sify Limited
 9498      993        469          66   BHARTI BT INTERNET LTD.
23577      800         34         693   Korea Telecom (ATM-MPLS)
 4766      781       4927         314   Korea Telecom (KIX)
17488      712         46          52   Hathway IP Over Cable Interne
 7545      688        151         115   TPG Internet Pty Ltd
18101      563        117          36   Reliance Infocom Ltd Internet
 1221      545       1950         425   Telstra Pty Ltd
 4812      527        903          92   China Telecom (Shanghai)
 4668      510         68          10   LG-EDS Systems Inc.
17676      504      10935          65   Softbank BB Corp.
 9443      470        122          77   Primus Telecommunications
 4802      411        105         151   Wantree Development
 7474      409        218         269   SingTel Optus Pty Ltd
17974      370        130          13   PT TELEKOMUNIKASI INDONESIA
 2907      362       1701         302   SINET Japan
 9829      362        258          14   BSNL National Internet Backbo
17557      351         41         171   Pakistan Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1451       6057         985   AT&T WorldNet Services
 4323     1321       1038         369   Time Warner Telecom
 2386     1212        616         754   AT&T Data Communications Serv
 6478     1128        368         147   AT&T Worldnet Services 
11492     1095        107          24   Cable One 
 6197     1027        717         509   BellSouth Network Solutions, 
18566     1012        288           9   Covad Communications 
  174      965       6778         864   Cogent Communications
  701      946       6597         721   UUNET Technologies, Inc. 
 7011      851        252         537   Citizens Utilities 
 1239      812       2734         580   Sprint 
20115      798        728         424   Charter Communications 
19262      777       2724         200   Verizon Global Networks 
  209      748       3859         581   Qwest 
22773      733       1892          46   Cox Communications, Inc.
 5668      616        169          21   CenturyTel Internet Holdings,
 7029      614        488          79   Alltel Information Services, 
  855      575        254          73   Canadian Research Network 
  852      572       1089         362   Telus Advanced Communications
 6198      568        613         260   BellSouth Network Solutions, 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 2119      514       1075         136   Telenor Internet Access
  702      503       1930         402   UUNET - Commercial IP service
24863      356         56          37   LINKdotNET AS number
 3301      310       1455         290   TeliaNet Sweden
 3320      310       6034         257   Deutsche Telekom AG
 6746      280        129         256   Dynamic Network Technologies,
 5089      268       1658          53   NTL Group Limited
  680      263       2044         255   DFN-IP service G-WiN
 9116      260        136          25   Goldenlines main autonomous s
 3215      255       2376          96   France Telecom Transpac
 8708      250        420         239   Romania Data Systems S.A.
 8220      248        444         240   COLT Telecommunications
 8551      223        213          28   Bezeq International
 3269      222       2775          74   TELECOM ITALIA
 3352      219       1864          41   Ibernet, Internet Access Netw
 9121      210       1441          24   TTnet Autonomous System
 1257      195       1196         173   SWIPnet Swedish IP Network
 3246      194        328         184   Song Networks
12479      190        578           6   Uni2 Autonomous System
 3300      185        172          91   AUCS Communications Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      856       1917         208   UniNet S.A. de C.V. 
11830      483        299           9   Instituto Costarricense de El
11172      373        116          63   Servicios Alestra S.A de C.V 
16814      361         22           8   NSS, S.A. 
22047      313        238          12   VTR PUNTO NET S.A. 
 7303      300        145          32   Telecom Argentina Stet-France
 6471      295         74          33   ENTEL CHILE S.A. 
14117      279         19          15   Telefonica del Sur S.A. 
11556      231        128           4   Cable-Wireless Panama 
 6147      225        172          27   Telefonica Del Peru 
 6503      208        172          85   AVANTEL, S.A. 
10620      207         59          14   TVCABLE BOGOTA 
23216      195         16          43   RAMtelecom Telecomunicaciones
10481      181         72           8   Prima S.A. 
14522      176         28           7   SatNet S.A. 
 8163      173         11           7   METROTEL REDES S.A. 
 7738      156        506          23   Telecomunicacoes da Bahia S.A
21826      156         27          59   INTERCABLE 
 7910      155         11          30   ANDINET ON LINE 
19169      153         10          31   Telconet 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        867         220   The Internet Solution 
 8452      211        188           7   TEDATA
 6713      142        135          11   Itissalat Al-MAGHRIB
 2018      136        301         111   Tertiary Education Network 
33783      124          8          12   EEPAD TISP TELECOM & INTERNET
 5536      123          8          15   Internet Egypt Network
24835       86         48           6   RAYA Telecom - Egypt
 2905       77        174          73   The Internetworking Company o
15475       76         84           4   Nile Online
 2561       62          6           2   Egyptian Universities Network
15706       56         12           4   Sudatel Internet Exchange Aut
23889       49         16          14   MAURITIUS TELECOM
 5713       45        294          35   Telkom SA Ltd 
33774       43         29          24   AS Number for Telecom Algeria
16637       37         21          29   Johnnic e-Ventures 
12455       35          6           3   Jambonet Autonomous system
33776       35          2           3   Starcomms Nigeria Limited
 8524       32          2           8   AUCEGYPT Autonomous System
21280       28          4           4   Swift Global Kenya Ltd.Is an 
10798       24          2          15   Standard Bank of South Africa

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

  ASN   No of nets  Net Savings Description
 4755      1265        1194      Videsh Sanchar Nigam Ltd. Aut
11492      1095        1071      Cable One 
 4134      1349        1067      CHINANET-BACKBONE
18566      1012        1003      Covad Communications 
 6478      1128         981      AT&T Worldnet Services 
 4323      1321         952      Time Warner Telecom
 9498       993         927      BHARTI BT INTERNET LTD.
 9583      1112         716      Sify Limited
22773       733         687      Cox Communications, Inc.
17488       712         660      Hathway IP Over Cable Interne
 8151       856         648      UniNet S.A. de C.V. 
 5668       616         595      CenturyTel Internet Holdings,
19262       777         577      Verizon Global Networks 
 7545       688         573      TPG Internet Pty Ltd
 7029       614         535      Alltel Information Services, 
18101       563         527      Reliance Infocom Ltd Internet
 6517       561         525      Yipes Communications, Inc. 
 6197      1027         518      BellSouth Network Solutions, 
19916       568         517      OLM LLC 
15270       555         517      PaeTec.net -a division of Pae

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

Bad AS  Designation  Network              Transit AS  Description
65332   PRIVATE       63.166.106.192/27     1803       SPRINT 
38347   UNALLOCATED   116.212.160.0/21      9389       BEIJING SHENZHOU GRE
38347   UNALLOCATED   116.212.168.0/21      9389       BEIJING SHENZHOU GRE
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 
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        /8:18       /9:9       /10:15      /11:36      /12:127     
/13:251     /14:464     /15:897     /16:9540    /17:4008    /18:6496    
/19:13704   /20:15962   /21:14303   /22:18729   /23:19656   /24:118349  
/25:791     /26:991     /27:480     /28:77      /29:10      /30:14      
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
 6478     1118          1128      AT&T Worldnet Services 
11492     1086          1095      Cable One 
18566      994          1012      Covad Communications 
 9583      954          1112      Sify Limited
 2386      904          1212      AT&T Data Communications Serv
23577      791           800      Korea Telecom (ATM-MPLS)
 7018      789          1451      AT&T WorldNet Services
 6197      780          1027      BellSouth Network Solutions, 
 7011      750           851      Citizens Utilities 
 9498      663           993      BHARTI BT INTERNET LTD.
 4755      660          1265      Videsh Sanchar Nigam Ltd. Aut
 4766      588           781      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4323      553          1321      Time Warner Telecom
17488      535           712      Hathway IP Over Cable Interne
 6517      527           561      Yipes Communications, Inc. 
15270      519           555      PaeTec.net -a division of Pae
 4668      500           510      LG-EDS Systems Inc.
 5668      480           616      CenturyTel Internet Holdings,
18101      478           563      Reliance Infocom Ltd Internet

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

   4:8         7:1         8:84        9:1        12:1811     15:19     
  16:3        17:3        18:11       20:37       24:936      25:1      
  32:50       33:3        38:332      40:61       41:180      44:2      
  47:3        52:4        55:3        56:3        57:25       58:425    
  59:391      60:319      61:985      62:876      63:1965     64:3111   
  65:2347     66:3298     67:747      68:627      69:1895     70:434    
  71:106      72:1341     73:2        74:564      75:265      76:72     
  77:265      78:18       80:842      81:813      82:673      83:384    
  84:480      85:854      86:341      87:449      88:283      89:885    
  90:7        91:408      97:6        98:4       116:246     117:45     
 121:219     122:571     123:122     124:834     125:948     128:291    
 129:214     130:139     131:362     132:54      133:9       134:195    
 135:38      136:181     137:81      138:149     139:73      140:480    
 141:173     142:374     143:243     144:297     145:43      146:325    
 147:120     148:404     149:145     150:113     151:160     152:92     
 153:126     154:4       155:254     156:153     157:212     158:157    
 159:158     160:105     161:92      162:222     163:180     164:466    
 165:416     166:294     167:287     168:504     169:120     170:406    
 171:18      172:1       189:62      190:710     192:5749    193:3896   
 194:3166    195:2250    196:929     198:3804    199:3268    200:4912   
 201:1093    202:7360    203:7556    204:3955    205:2025    206:2406   
 207:2833    208:2705    209:3501    210:2451    211:967     212:1307   
 213:1467    214:399     215:42      216:4008    217:1149    218:359    
 219:384     220:980     221:414     222:264    

End of report



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