[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 15 18:03:36 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 16 Jun, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/06/16/0400

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

BGP routing table entries examined:                              222914
    Prefixes after maximum aggregation:                          117940
    Deaggregation factor:                                          1.89
    Unique aggregates announced to Internet:                     108491
Total ASes present in the Internet Routing Table:                 25464
    Prefixes per ASN:                                              8.75
Origin-only ASes present in the Internet Routing Table:           22162
Origin ASes announcing only one prefix:                           10772
Transit ASes present in the Internet Routing Table:                3302
Transit-only ASes present in the Internet Routing Table:             75
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:                 5
    Unregistered ASNs in the Routing Table:                           7
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:             12
Number of addresses announced to Internet:                   1737995104
    Equivalent to 103 /8s, 151 /16s and 179 /24s
    Percentage of available address space announced:               46.9
    Percentage of allocated address space announced:               62.1
    Percentage of available address space allocated:               75.5
Total number of prefixes smaller than registry allocations:      116911

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

Prefixes being announced by APNIC Region ASes:                    52214
    Total APNIC prefixes after maximum aggregation:               20460
    APNIC Deaggregation factor:                                    2.55
Prefixes being announced from the APNIC address blocks:           49154
    Unique aggregates announced from the APNIC address blocks:    21596
APNIC Region origin ASes present in the Internet Routing Table:    2976
    APNIC Prefixes per ASN:                                       16.52
APNIC Region origin ASes announcing only one prefix:                796
APNIC Region transit ASes present in the Internet Routing Table:    457
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              299838112
    Equivalent to 17 /8s, 223 /16s and 42 /24s
    Percentage of available APNIC address space announced:         74.3

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:                    106469
    Total ARIN prefixes after maximum aggregation:                62049
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:            78328
    Unique aggregates announced from the ARIN address blocks:     31014
ARIN Region origin ASes present in the Internet Routing Table:    11628
    ARIN Prefixes per ASN:                                         6.74
ARIN Region origin ASes announcing only one prefix:                4468
ARIN Region transit ASes present in the Internet Routing Table:    1070
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               336093824
    Equivalent to 20 /8s, 8 /16s and 98 /24s
    Percentage of available ARIN address space announced:          74.2

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:                     46726
    Total RIPE prefixes after maximum aggregation:                30200
    RIPE Deaggregation factor:                                     1.55
Prefixes being announced from the RIPE address blocks:            43218
    Unique aggregates announced from the RIPE address blocks:     28664
RIPE Region origin ASes present in the Internet Routing Table:     9787
    RIPE Prefixes per ASN:                                         4.42
RIPE Region origin ASes announcing only one prefix:                5190
RIPE Region transit ASes present in the Internet Routing Table:    1567
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               315250688
    Equivalent to 18 /8s, 202 /16s and 88 /24s
    Percentage of available RIPE address space announced:          78.3

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:                   14923
    Total LACNIC prefixes after maximum aggregation:               4216
    LACNIC Deaggregation factor:                                   3.54
Prefixes being announced from the LACNIC address blocks:          12999
    Unique aggregates announced from the LACNIC address blocks:    7312
LACNIC Region origin ASes present in the Internet Routing Table:    806
    LACNIC Prefixes per ASN:                                      16.13
LACNIC Region origin ASes announcing only one prefix:               260
LACNIC Region transit ASes present in the Internet Routing Table:   138
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        18
Number of LACNIC addresses announced to Internet:              39271168
    Equivalent to 2 /8s, 87 /16s and 59 /24s
    Percentage of available LACNIC address space announced:        58.5

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:                   2573
    Total AfriNIC prefixes after maximum aggregation:              1005
    AfriNIC Deaggregation factor:                                  2.56
Prefixes being announced from the AfriNIC address blocks:          1988
    Unique aggregates announced from the AfriNIC address blocks:   1208
AfriNIC Region origin ASes present in the Internet Routing Table:   191
    AfriNIC Prefixes per ASN:                                     10.41
AfriNIC Region origin ASes announcing only one prefix:               58
AfriNIC Region transit ASes present in the Internet Routing Table:   38
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              6243584
    Equivalent to 0 /8s, 95 /16s and 69 /24s
    Percentage of available AfriNIC address space announced:       18.6

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       9973         279   CHINANET-BACKBONE
 4755     1230        382          71   Videsh Sanchar Nigam Ltd. Aut
 9583     1100         79         395   Sify Limited
 9498     1002        469          67   BHARTI BT INTERNET LTD.
 4766      787       4943         312   Korea Telecom (KIX)
23577      777         35         705   Korea Telecom (ATM-MPLS)
17488      701         46          40   Hathway IP Over Cable Interne
 7545      632        143          82   TPG Internet Pty Ltd
18101      558        117          35   Reliance Infocom Ltd Internet
 1221      550       1954         425   Telstra Pty Ltd
 4668      508         68          10   LG-EDS Systems Inc.
17676      504      10935          65   Softbank BB Corp.
 4812      465        843          80   China Telecom (Shanghai)
 9443      465        121          77   Primus Telecommunications
 7474      412        218         270   SingTel Optus Pty Ltd
 4802      408         86         147   Wantree Development
17974      371        129          12   PT TELEKOMUNIKASI INDONESIA
 9829      363        258          15   BSNL National Internet Backbo
 2907      360       1700         301   SINET Japan
17557      358         41         173   Pakistan Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1473       6112         974   AT&T WorldNet Services
 4323     1276       1034         366   Time Warner Telecom
 2386     1141        596         753   AT&T Data Communications Serv
 6478     1111        364         142   AT&T Worldnet Services 
11492     1083        106          22   Cable One 
 6197     1024        707         508   BellSouth Network Solutions, 
18566     1010        288           9   Covad Communications 
  174      956       6780         867   Cogent Communications
  701      953       6596         727   UUNET Technologies, Inc. 
 7011      840        234         531   Citizens Utilities 
 1239      806       2731         573   Sprint 
20115      800        730         426   Charter Communications 
19262      776       2703         202   Verizon Global Networks 
  209      745       3838         581   Qwest 
22773      721       1892          44   Cox Communications, Inc.
 5668      612        169          20   CenturyTel Internet Holdings,
 7029      599        488          80   Alltel Information Services, 
  852      589       1090         372   Telus Advanced Communications
  855      573        253          71   Canadian Research Network 
19916      568         49          51   OLM LLC 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      515       1938         406   UUNET - Commercial IP service
 2119      513       1075         135   Telenor Internet Access
24863      351         56          35   LINKdotNET AS number
 3301      308       1471         288   TeliaNet Sweden
 3320      307       6018         256   Deutsche Telekom AG
 6746      278        129         255   Dynamic Network Technologies,
  680      265       2044         256   DFN-IP service G-WiN
 3215      249       2296          95   France Telecom Transpac
 8220      248        444         240   COLT Telecommunications
 8708      237        416         230   Romania Data Systems S.A.
 5089      221       1658          53   NTL Group Limited
 3269      218       2679          75   TELECOM ITALIA
 3352      216       1864          37   Ibernet, Internet Access Netw
 9121      208       1441          23   TTnet Autonomous System
 8551      207        197          27   Bezeq International
 9116      199        136          25   Goldenlines main autonomous s
 1257      198       1196         176   SWIPnet Swedish IP Network
 3246      197        331         187   Song Networks
12479      189        578           6   Uni2 Autonomous System
 3300      181        171          88   AUCS Communications Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      844       1904         207   UniNet S.A. de C.V. 
11830      483        299          19   Instituto Costarricense de El
11172      371        116          63   Servicios Alestra S.A de C.V 
16814      361         22           8   NSS, S.A. 
22047      316        238          12   VTR PUNTO NET S.A. 
 7303      295        144          31   Telecom Argentina Stet-France
 6471      272         74          33   ENTEL CHILE S.A. 
14117      255         19          15   Telefonica del Sur S.A. 
11556      231        128           4   Cable-Wireless Panama 
 6147      223        168          25   Telefonica Del Peru 
 6503      211        188          84   AVANTEL, S.A. 
10620      207         59          14   TVCABLE BOGOTA 
10481      181         72           8   Prima S.A. 
14522      167         27           8   SatNet S.A. 
23216      163         19          42   RAMtelecom Telecomunicaciones
21826      157         27          59   INTERCABLE 
 7910      155         11          33   ANDINET ON LINE 
19429      152         79          41   E.T.B. 
20299      147         23          12   NEWCOM AMERICAS 
 7738      146        474          22   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      280        867         221   The Internet Solution 
 8452      214        188           7   TEDATA
 6713      142        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      119          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       48         16          13   MAURITIUS TELECOM
 5713       44        294          34   Telkom SA Ltd 
33774       43         29          24   AS Number for Telecom Algeria
16637       37         21          29   Johnnic e-Ventures 
33776       36          2           2   Starcomms Nigeria Limited
12455       34          6           3   Jambonet Autonomous system
 8524       32          2           8   AUCEGYPT Autonomous System
21280       27          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      1230        1159      Videsh Sanchar Nigam Ltd. Aut
11492      1083        1061      Cable One 
 4134      1289        1010      CHINANET-BACKBONE
18566      1010        1001      Covad Communications 
 6478      1111         969      AT&T Worldnet Services 
 9498      1002         935      BHARTI BT INTERNET LTD.
 4323      1276         910      Time Warner Telecom
 9583      1100         705      Sify Limited
22773       721         677      Cox Communications, Inc.
17488       701         661      Hathway IP Over Cable Interne
 8151       844         637      UniNet S.A. de C.V. 
 5668       612         592      CenturyTel Internet Holdings,
19262       776         574      Verizon Global Networks 
 7545       632         550      TPG Internet Pty Ltd
18101       558         523      Reliance Infocom Ltd Internet
 7029       599         519      Alltel Information Services, 
19916       568         517      OLM LLC 
 6197      1024         516      BellSouth Network Solutions, 
15270       546         511      PaeTec.net -a division of Pae
  855       573         502      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 
65001   PRIVATE       82.213.31.0/24       12975       PALTEL Autonomous Sy
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       /10:15      /11:35      /12:124     
/13:245     /14:463     /15:889     /16:9457    /17:4013    /18:6444    
/19:13611   /20:15718   /21:14184   /22:18453   /23:19509   /24:117366  
/25:803     /26:980     /27:475     /28:67      /29:10      /30:13      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
 6478     1101          1111      AT&T Worldnet Services 
11492     1074          1083      Cable One 
18566      992          1010      Covad Communications 
 9583      942          1100      Sify Limited
 2386      840          1141      AT&T Data Communications Serv
 7018      790          1473      AT&T WorldNet Services
 6197      777          1024      BellSouth Network Solutions, 
23577      763           777      Korea Telecom (ATM-MPLS)
 7011      742           840      Citizens Utilities 
 9498      672          1002      BHARTI BT INTERNET LTD.
 4755      631          1230      Videsh Sanchar Nigam Ltd. Aut
 4766      593           787      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4323      523          1276      Time Warner Telecom
17488      523           701      Hathway IP Over Cable Interne
15270      513           546      PaeTec.net -a division of Pae
 4668      498           508      LG-EDS Systems Inc.
 5668      477           612      CenturyTel Internet Holdings,
18101      474           558      Reliance Infocom Ltd Internet
  855      471           573      Canadian Research Network 

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

   4:9         7:1         8:81        9:1        12:1808     15:19     
  16:3        17:3        18:8        20:36       24:918      25:1      
  32:51       33:2        38:322      40:61       41:164      44:2      
  47:5        52:4        55:3        56:3        57:25       58:415    
  59:405      60:301      61:984      62:933      63:1968     64:3119   
  65:2356     66:3254     67:746      68:636      69:1879     70:429    
  71:112      72:1322     73:1        74:525      75:259      76:40     
  77:238      78:2        80:818      81:808      82:662      83:392    
  84:418      85:844      86:383      87:486      88:279      89:910    
  90:7        91:368      94:1        97:6        98:3       116:194    
 117:49      121:202     122:547     123:114     124:829     125:944    
 128:280     129:223     130:126     131:365     132:53      133:9      
 134:193     135:39      136:185     137:81      138:142     139:71     
 140:481     141:171     142:372     143:234     144:291     145:43     
 146:320     147:120     148:397     149:142     150:114     151:158    
 152:93      153:126     154:4       155:254     156:152     157:188    
 158:158     159:157     160:106     161:91      162:228     163:183    
 164:450     165:399     166:241     167:285     168:512     169:120    
 170:401     171:16      172:1       189:53      190:578     192:5767   
 193:3873    194:3150    195:2237    196:908     198:3753    199:3290   
 200:4850    201:1017    202:7371    203:7529    204:3963    205:2032   
 206:2338    207:2811    208:2641    209:3512    210:2457    211:956    
 212:1310    213:1481    214:413     215:40      216:4010    217:1145   
 218:358     219:384     220:976     221:409     222:261    

End of report



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