[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat May 5 04:03:15 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 05 May, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/05/05/0400

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

BGP routing table entries examined:                              219628
    Prefixes after maximum aggregation:                          116935
    Deaggregation factor:                                          1.88
    Unique aggregates announced to Internet:                     106618
Total ASes present in the Internet Routing Table:                 25093
    Prefixes per ASN:                                              8.75
Origin-only ASes present in the Internet Routing Table:           21855
Origin ASes announcing only one prefix:                           10575
Transit ASes present in the Internet Routing Table:                3238
Transit-only ASes present in the Internet Routing Table:             77
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      21
    Max AS path prepend of ASN (20858)                               18
Prefixes from unregistered ASNs in the Routing Table:                 6
    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:                   1715790016
    Equivalent to 102 /8s, 68 /16s and 224 /24s
    Percentage of available address space announced:               46.3
    Percentage of allocated address space announced:               62.8
    Percentage of available address space allocated:               73.7
Total number of prefixes smaller than registry allocations:      114921

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

Prefixes being announced by APNIC Region ASes:                    50596
    Total APNIC prefixes after maximum aggregation:               20195
    APNIC Deaggregation factor:                                    2.51
Prefixes being announced from the APNIC address blocks:           47584
    Unique aggregates announced from the APNIC address blocks:    21230
APNIC Region origin ASes present in the Internet Routing Table:    2933
    APNIC Prefixes per ASN:                                       16.22
APNIC Region origin ASes announcing only one prefix:                788
APNIC Region transit ASes present in the Internet Routing Table:    440
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              292731328
    Equivalent to 17 /8s, 114 /16s and 185 /24s
    Percentage of available APNIC address space announced:         72.5

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:                    106199
    Total ARIN prefixes after maximum aggregation:                61978
    ARIN Deaggregation factor:                                     1.71
Prefixes being announced from the ARIN address blocks:            78168
    Unique aggregates announced from the ARIN address blocks:     30453
ARIN Region origin ASes present in the Internet Routing Table:    11538
    ARIN Prefixes per ASN:                                         6.77
ARIN Region origin ASes announcing only one prefix:                4425
ARIN Region transit ASes present in the Internet Routing Table:    1056
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          21
Number of ARIN addresses announced to Internet:               331984768
    Equivalent to 19 /8s, 201 /16s and 175 /24s
    Percentage of available ARIN address space announced:          73.3

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:                     45303
    Total RIPE prefixes after maximum aggregation:                29640
    RIPE Deaggregation factor:                                     1.53
Prefixes being announced from the RIPE address blocks:            41854
    Unique aggregates announced from the RIPE address blocks:     27995
RIPE Region origin ASes present in the Internet Routing Table:     9570
    RIPE Prefixes per ASN:                                         4.37
RIPE Region origin ASes announcing only one prefix:                5051
RIPE Region transit ASes present in the Internet Routing Table:    1534
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               304882816
    Equivalent to 18 /8s, 44 /16s and 36 /24s
    Percentage of available RIPE address space announced:          75.7

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:                   14941
    Total LACNIC prefixes after maximum aggregation:               4105
    LACNIC Deaggregation factor:                                   3.64
Prefixes being announced from the LACNIC address blocks:          13030
    Unique aggregates announced from the LACNIC address blocks:    7169
LACNIC Region origin ASes present in the Internet Routing Table:    785
    LACNIC Prefixes per ASN:                                      16.60
LACNIC Region origin ASes announcing only one prefix:               254
LACNIC Region transit ASes present in the Internet Routing Table:   140
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        17
Number of LACNIC addresses announced to Internet:              38440704
    Equivalent to 2 /8s, 74 /16s and 143 /24s
    Percentage of available LACNIC address space announced:        57.3

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:                   2579
    Total AfriNIC prefixes after maximum aggregation:              1007
    AfriNIC Deaggregation factor:                                  2.56
Prefixes being announced from the AfriNIC address blocks:          1959
    Unique aggregates announced from the AfriNIC address blocks:   1193
AfriNIC Region origin ASes present in the Internet Routing Table:   189
    AfriNIC Prefixes per ASN:                                     10.37
AfriNIC Region origin ASes announcing only one prefix:               57
AfriNIC Region transit ASes present in the Internet Routing Table:   37
Average AfriNIC Region AS path length visible:                      3.7
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              6070016
    Equivalent to 0 /8s, 92 /16s and 159 /24s
    Percentage of available AfriNIC address space announced:       18.1

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     1282       9603         274   CHINANET-BACKBONE
 4755     1205        383          72   Videsh Sanchar Nigam Ltd. Aut
 9583     1108         79         381   Sify Limited
 9498      974        469          73   BHARTI BT INTERNET LTD.
 4766      784       4943         312   Korea Telecom (KIX)
23577      778         35         706   Korea Telecom (ATM-MPLS)
17488      672         44          34   Hathway IP Over Cable Interne
 7545      627        142          80   TPG Internet Pty Ltd
 1221      543       1954         421   Telstra Pty Ltd
18101      534        116          27   Reliance Infocom Ltd Internet
 4668      507         68          10   LG-EDS Systems Inc.
17676      504      10935          65   Softbank BB Corp.
 4812      465        799          75   China Telecom (Shanghai)
 9443      453        115          74   Primus Telecommunications
 7474      411        217         268   SingTel Optus Pty Ltd
 4802      359         86         148   Wantree Development
17557      359         35         170   Pakistan Telecom
 9829      354        273          10   BSNL National Internet Backbo
 4837      346       4725         160   chinanet IDC center beijing n
17974      344        129          12   PT TELEKOMUNIKASI INDONESIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1495       6134         986   AT&T WorldNet Services
 4323     1263       1023         361   Time Warner Telecom
 2386     1136        580         754   AT&T Data Communications Serv
 6478     1091        337         133   AT&T Worldnet Services 
11492     1049        103          20   Cable One 
 6197     1034        688         503   BellSouth Network Solutions, 
18566     1001        288           9   Covad Communications 
  174      968       6793         877   Cogent Communications
  701      958       6660         731   UUNET Technologies, Inc. 
20115      824        738         431   Charter Communications 
 1239      819       2717         580   Sprint 
 7011      790        226         471   Citizens Utilities 
19262      769       2596         208   Verizon Global Networks 
  209      731       3862         584   Qwest 
22773      710       1872          42   Cox Communications, Inc.
  721      601      21739         270   DLA Systems Automation Center
 5668      598        160          17   CenturyTel Internet Holdings,
  852      589       1096         371   Telus Advanced Communications
 7029      582        456          81   Alltel Information Services, 
  855      568        253          71   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      522       1941         416   UUNET - Commercial IP service
24863      344         47          30   LINKdotNET AS number
 3301      310       1455         290   TeliaNet Sweden
 3320      302       4993         250   Deutsche Telekom AG
 6746      275        128         252   Dynamic Network Technologies,
 8220      259        461         250   COLT Telecommunications
  680      257       2044         250   DFN-IP service G-WiN
 3215      240       2256          92   France Telecom Transpac
 8708      236        287         229   Romania Data Systems S.A.
 3352      224       1799          33   Ibernet, Internet Access Netw
 3269      214       2583          73   TELECOM ITALIA
 3246      208        340         198   Song Networks
 8551      206        196          30   Bezeq International
30890      205         17          95   SC Kappa Invexim SRL
20858      196         34           4   EgyNet
 1257      190       1180         168   SWIPnet Swedish IP Network
 9116      189        134          24   Goldenlines main autonomous s
 3300      185        171          90   AUCS Communications Services 
12479      185        578           6   Uni2 Autonomous System
  786      177       1795         177   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1179       1869         210   UniNet S.A. de C.V. 
11830      483        299          19   Instituto Costarricense de El
11172      364        116          63   Servicios Alestra S.A de C.V 
16814      362         22           8   NSS, S.A. 
22047      310        238          12   VTR PUNTO NET S.A. 
 7303      273        143          28   Telecom Argentina Stet-France
 6471      259         74          31   ENTEL CHILE S.A. 
14117      242         17          14   Telefonica del Sur S.A. 
11556      235        128           3   Cable-Wireless Panama 
 6147      221        166          25   Telefonica Del Peru 
 6503      215        172          86   AVANTEL, S.A. 
20299      192         23          14   NEWCOM AMERICAS 
10620      185         53          23   TVCABLE BOGOTA 
10481      181         72           8   Prima S.A. 
23216      157         19          42   RAMtelecom Telecomunicaciones
14522      155         25           7   SatNet S.A. 
21826      155         27          59   INTERCABLE 
 7910      154         11          29   ANDINET ON LINE 
19429      151         93          41   E.T.B. 
19169      143          9          26   Telconet 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      291        868         232   The Internet Solution 
 8452      228        188           7   TEDATA
 6713      143        135          11   Itissalat Al-MAGHRIB
 2018      137        309         112   Tertiary Education Network 
15475      129         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       81        174          73   The Internetworking Company o
 2561       55          6           2   Egyptian Universities Network
15706       51         12           4   Sudatel Internet Exchange Aut
23889       49         16          13   MAURITIUS TELECOM
 5713       44        294          34   Telkom SA Ltd 
33774       43         13          24   AS Number for Telecom Algeria
16637       33         21          25   Johnnic e-Ventures 
33776       31          2           6   Starcomms Nigeria Limited
 8524       30          2           6   AUCEGYPT Autonomous System
21280       29          4           4   Swift Global Kenya Ltd.Is an 
33766       29          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      1205        1133      Videsh Sanchar Nigam Ltd. Aut
11492      1049        1029      Cable One 
 4134      1282        1008      CHINANET-BACKBONE
18566      1001         992      Covad Communications 
 8151      1179         969      UniNet S.A. de C.V. 
 6478      1091         958      AT&T Worldnet Services 
 4323      1263         902      Time Warner Telecom
 9498       974         901      BHARTI BT INTERNET LTD.
 9583      1108         727      Sify Limited
22773       710         668      Cox Communications, Inc.
17488       672         638      Hathway IP Over Cable Interne
 5668       598         581      CenturyTel Internet Holdings,
19262       769         561      Verizon Global Networks 
 7545       627         547      TPG Internet Pty Ltd
 6197      1034         531      BellSouth Network Solutions, 
19916       568         517      OLM LLC 
18101       534         507      Reliance Infocom Ltd Internet
 7029       582         501      Alltel Information Services, 
  855       568         497      Canadian Research Network 
 4668       507         497      LG-EDS Systems Inc.

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

Bad AS  Designation  Network              Transit AS  Description
65332   PRIVATE       63.166.106.192/27     1803       SPRINT 
65242   PRIVATE       64.222.142.0/24      13674       Bell Atlantic Global
64858   PRIVATE       84.36.180.0/24       20858       EgyNet
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE
65534   PRIVATE       203.222.150.0/24      4817       Techex Primary Netbl
22895   UNALLOCATED   216.174.38.0/24      19094       Adelphia Business So

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

Network            Origin AS  Description
2.0.0.0/24           41856     Flagmanskaya Sluzhba Svyazi
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        /8:19       /9:9       /10:13      /11:34      /12:123     
/13:238     /14:450     /15:862     /16:9372    /17:3837    /18:6368    
/19:13452   /20:15279   /21:13824   /22:17896   /23:19200   /24:116510  
/25:759     /26:818     /27:491     /28:59      /29:6       /30:1       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6478     1082          1091      AT&T Worldnet Services 
11492     1035          1049      Cable One 
18566      983          1001      Covad Communications 
 9583      946          1108      Sify Limited
 2386      832          1136      AT&T Data Communications Serv
 7018      807          1495      AT&T WorldNet Services
 6197      795          1034      BellSouth Network Solutions, 
23577      764           778      Korea Telecom (ATM-MPLS)
 7011      693           790      Citizens Utilities 
 9498      638           974      BHARTI BT INTERNET LTD.
 4755      600          1205      Videsh Sanchar Nigam Ltd. Aut
 4766      590           784      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 8151      557          1179      UniNet S.A. de C.V. 
 4323      522          1263      Time Warner Telecom
 4668      496           507      LG-EDS Systems Inc.
15270      495           528      PaeTec.net -a division of Pae
17488      493           672      Hathway IP Over Cable Interne
  855      466           568      Canadian Research Network 
 5668      463           598      CenturyTel Internet Holdings,

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

   2:1         4:9         7:1         8:73        9:1        12:1805   
  15:19       16:3        17:3        18:8        20:37       24:927    
  25:1        32:53       38:306      40:60       41:127      44:2      
  47:4        52:4        55:2        56:3        57:26       58:391    
  59:371      60:272      61:930      62:970      63:1972     64:3073   
  65:2363     66:3261     67:806      68:636      69:1829     70:499    
  71:104      72:1314     73:1        74:414      75:258      76:45     
  77:145      80:858      81:805      82:600      83:373      84:435    
  85:750      86:360      87:464      88:264      89:851      90:7      
  91:272      97:6       116:55      121:175     122:520     123:97     
 124:798     125:926     128:278     129:219     130:123     131:347    
 132:52      133:11      134:193     135:39      136:183     137:78     
 138:197     139:65      140:477     141:164     142:371     143:234    
 144:289     145:43      146:323     147:145     148:400     149:142    
 150:116     151:158     152:92      153:120     154:4       155:252    
 156:155     157:185     158:160     159:156     160:105     161:89     
 162:234     163:176     164:452     165:405     166:234     167:279    
 168:491     169:118     170:400     171:16      172:1       189:396    
 190:600     192:5760    193:3806    194:3107    195:2213    196:951    
 198:3753    199:3300    200:4763    201:979     202:7240    203:7464   
 204:3953    205:2088    206:2358    207:2880    208:2665    209:3606   
 210:2478    211:937     212:1312    213:1460    214:408     215:41     
 216:3999    217:1139    218:356     219:356     220:949     221:408    
 222:269    

End of report



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