[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Jan 27 05:02:25 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 27 Jan, 2007

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

BGP routing table entries examined:                              209098
    Prefixes after maximum aggregation:                          112768
    Deaggregation factor:                                          1.85
    Unique aggregates announced to Internet:                     101751
Total ASes present in the Internet Routing Table:                 24204
Origin-only ASes present in the Internet Routing Table:           21078
Origin ASes announcing only one prefix:                           10191
Transit ASes present in the Internet Routing Table:                3126
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:                                      32
    Max AS path prepend of ASN (20858)                               18
Prefixes from unregistered ASNs in the Routing Table:                 3
    Unregistered ASNs in the Routing Table:                           4
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1667168908
    Equivalent to 99 /8s, 94 /16s and 250 /24s
    Percentage of available address space announced:               45.0
    Percentage of allocated address space announced:               61.8
    Percentage of available address space allocated:               72.8
Total number of prefixes smaller than registry allocations:      107085

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

Prefixes being announced by APNIC Region ASes:                    46704
    Total APNIC prefixes after maximum aggregation:               18720
    APNIC Deaggregation factor:                                    2.49
Prefixes being announced from the APNIC address blocks:           44152
    Unique aggregates announced from the APNIC address blocks:    19260
APNIC Region origin ASes present in the Internet Routing Table:    2827
APNIC Region origin ASes announcing only one prefix:                787
APNIC Region transit ASes present in the Internet Routing Table:    420
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              281267552
    Equivalent to 16 /8s, 195 /16s and 205 /24s
    Percentage of available APNIC address space announced:         69.7

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:                    102763
    Total ARIN prefixes after maximum aggregation:                60807
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:            75685
    Unique aggregates announced from the ARIN address blocks:     29044
ARIN Region origin ASes present in the Internet Routing Table:    11294
ARIN Region origin ASes announcing only one prefix:                4324
ARIN Region transit ASes present in the Internet Routing Table:    1041
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          21
Number of ARIN addresses announced to Internet:               314814208
    Equivalent to 18 /8s, 195 /16s and 175 /24s
    Percentage of available ARIN address space announced:          69.5

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:                     43318
    Total RIPE prefixes after maximum aggregation:                28259
    RIPE Deaggregation factor:                                     1.53
Prefixes being announced from the RIPE address blocks:            40007
    Unique aggregates announced from the RIPE address blocks:     26608
RIPE Region origin ASes present in the Internet Routing Table:     9073
RIPE Region origin ASes announcing only one prefix:                4781
RIPE Region transit ASes present in the Internet Routing Table:    1467
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE addresses announced to Internet:               287181220
    Equivalent to 17 /8s, 30 /16s and 9 /24s
    Percentage of available RIPE address space announced:          77.8

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
                       40960-43007
RIPE Address Blocks    62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   13810
    Total LACNIC prefixes after maximum aggregation:               4028
    LACNIC Deaggregation factor:                                   3.43
Prefixes being announced from the LACNIC address blocks:          11834
    Unique aggregates announced from the LACNIC address blocks:    7250
LACNIC Region origin ASes present in the Internet Routing Table:    758
LACNIC Region origin ASes announcing only one prefix:               248
LACNIC Region transit ASes present in the Internet Routing Table:   133
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              36468224
    Equivalent to 2 /8s, 44 /16s and 118 /24s
    Percentage of available LACNIC address space announced:        54.3

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:                   2501
    Total AfriNIC prefixes after maximum aggregation:               953
    AfriNIC Deaggregation factor:                                  2.62
Prefixes being announced from the AfriNIC address blocks:          1769
    Unique aggregates announced from the AfriNIC address blocks:   1142
AfriNIC Region origin ASes present in the Internet Routing Table:   174
AfriNIC Region origin ASes announcing only one prefix:               51
AfriNIC Region transit ASes present in the Internet Routing Table:   32
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              5367552
    Equivalent to 0 /8s, 81 /16s and 231 /24s
    Percentage of available AfriNIC address space announced:       16.0

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     1279       8663         273   CHINANET-BACKBONE
 4755     1090        383          75   Videsh Sanchar Nigam Ltd. Aut
 9583     1030        109          16   Sify Limited
 9498      933        467          64   BHARTI BT INTERNET LTD.
23577      771         34         699   Korea Telecom (ATM-MPLS)
 4766      763       4944         313   Korea Telecom (KIX)
17488      588         37          20   Hathway IP Over Cable Interne
 1221      569       1697         440   Telstra Pty Ltd
 7545      558        126          72   TPG Internet Pty Ltd
18101      514        103          27   Reliance Infocom Ltd Internet
17676      503      10935          66   Softbank BB Corp.
 9443      442        111          74   Primus Telecommunications
 4812      435        763          69   China Telecom (Shanghai)
17974      364        129          14   PT TELEKOMUNIKASI INDONESIA
 4802      360         86         149   Wantree Development
17849      353         33          93   Telecommunications Technology
17557      349         34         168   Pakistan Telecom
 2907      335       1733         309   SINET Japan
 4837      334       4071         146   chinanet IDC center beijing n
 7474      315        212         244   SingTel Optus Pty Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1550       6127         996   AT&T WorldNet Services
 2386     1105        585         730   AT&T Data Communications Serv
 4323     1062        818         297   Time Warner Telecom
 6197     1023        647         501   BellSouth Network Solutions, 
18566      989        288           9   Covad Communications 
  701      938       6695         746   UUNET Technologies, Inc. 
  174      934       6789         864   Cogent Communications
11492      912         99          15   Cable One 
 1239      827       2729         577   Sprint 
19262      808       2576         180   Verizon Global Networks 
20115      795        689         412   Charter Communications 
 7011      731        218         454   Citizens Utilities 
22773      723       1872          41   Cox Communications, Inc.
  209      715       3750         563   Qwest 
  721      687      21836         280   DLA Systems Automation Center
  852      607       1093         393   Telus Advanced Communications
 5668      577        161          19   CenturyTel Internet Holdings,
19916      568         49          54   OLM LLC 
  855      565        250          73   Canadian Research Network 
 6198      552        521         258   BellSouth Network Solutions, 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      537       1898         425   UUNET - Commercial IP service
 3301      305       1199         287   TeliaNet Sweden
 3320      298       4993         249   Deutsche Telekom AG
24863      298         45          25   LINKdotNET AS number
 8220      271        474         263   COLT Telecommunications
 6746      270         95         247   Dynamic Network Technologies,
  680      257       2044         251   DFN-IP service G-WiN
 3215      237       2192          93   France Telecom Transpac
 8708      234        283         221   Romania Data Systems S.A.
 1257      224       1097         173   SWIPnet Swedish IP Network
 3269      213       2391          71   TELECOM ITALIA
30890      212         18          91   SC Kappa Invexim SRL
 3246      207        354         197   Song Networks
 5416      206         13           9   BATELCO-BH
 8551      192        193          28   Bezeq International
20858      189         34           3   This AS will be used to conne
 3352      182       1767          31   Ibernet, Internet Access Netw
 3300      178        171          89   AUCS Communications Services 
12479      176        578           6   Uni2 Autonomous System
  786      172       1779         172   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      910       2015         203   UniNet S.A. de C.V. 
11830      482        299          19   Instituto Costarricense de El
11172      385        113          83   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      307        206          11   VTR PUNTO NET S.A. 
 6471      254         74          30   ENTEL CHILE S.A. 
14117      238         16          13   Telefonica del Sur S.A. 
11556      235        116           6   Cable-Wireless Panama 
 7303      231        103          33   Telecom Argentina Stet-France
 6147      225        180          24   Telefonica Del Peru 
 6503      216        168          91   AVANTEL, S.A. 
10481      181         72           8   Prima S.A. 
21826      159         22          38   INTERCABLE 
 7910      152         11          32   ANDINET ON LINE 
23216      147         19          43   RAMtelecom Telecomunicaciones
20299      146         22          17   NEWCOM AMERICAS 
18822      145          9          10   TELEFONICA MANQUEHUE 
19169      141          9          24   Telconet 
19429      138         84          33   E.T.B. 
14522      136         21           8   SatNet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      290        868         232   The Internet Solution 
 8452      226         60           6   TEDATA
15475      153         84           4   Nile Online
 6713      144        135          11   Itissalat Al-MAGHRIB
 2018      138        309         113   Tertiary Education Network 
 5536      123          8          15   Internet Egypt Network
33783      112          6           5   EEPAD TISP TELECOM & INTERNET
24835       86         48           6   RAYA Telecom - Egypt
 2905       79        173          72   The Internetworking Company o
 2561       62          6           2   Egyptian Universities Network
15706       54         12           4   Sudatel Internet Exchange Aut
23889       53         16          13   MAURITIUS TELECOM
 5713       45        294          35   Telkom SA Ltd 
12455       39          6           3   Jambonet Autonomous system
33774       38         12          22   AS Number for Telecom Algeria
16637       33         21          25   Johnnic e-Ventures 
 8524       30          2           6   AUCEGYPT Autonomous System
33776       27          2           5   Starcomms Nigeria Limited
10798       23          1          14   Standard Bank of South Africa
21280       23          4           4   Swift Global Kenya Ltd.Is an 

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

  ASN   No of nets  Net Savings Description
 4755      1090        1015      Videsh Sanchar Nigam Ltd. Aut
 9583      1030        1014      Sify Limited
 4134      1279        1006      CHINANET-BACKBONE
18566       989         980      Covad Communications 
11492       912         897      Cable One 
 9498       933         869      BHARTI BT INTERNET LTD.
 4323      1062         765      Time Warner Telecom
 8151       910         707      UniNet S.A. de C.V. 
22773       723         682      Cox Communications, Inc.
19262       808         628      Verizon Global Networks 
17488       588         568      Hathway IP Over Cable Interne
 5668       577         558      CenturyTel Internet Holdings,
 6197      1023         522      BellSouth Network Solutions, 
19916       568         514      OLM LLC 
  855       565         492      Canadian Research Network 
18101       514         487      Reliance Infocom Ltd Internet
 7545       558         486      TPG Internet Pty Ltd
15270       500         466      PaeTec.net -a division of Pae
11830       482         463      Instituto Costarricense de El
 4766       763         450      Korea Telecom (KIX)

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

Bad AS  Designation  Network              Transit AS  Description
23456   UNALLOCATED   203.10.62.0/24        1221       Telstra Pty Ltd
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com

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
180.190.0.0/16       24003     JUBILANT ORGANOSYS LTD., INDI
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       /9:10      /10:13      /11:33      /12:115     
/13:226     /14:414     /15:811     /16:9197    /17:3680    /18:5961    
/19:12943   /20:14559   /21:13000   /22:16650   /23:17873   /24:111872  
/25:663     /26:459     /27:373     /28:65      /29:39      /30:90      
/31:0       /32:33      

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

  ASN   No of nets  Total ann.   Description
18566      971           989      Covad Communications 
11492      898           912      Cable One 
 9583      859          1030      Sify Limited
 7018      855          1550      AT&T WorldNet Services
 2386      829          1105      AT&T Data Communications Serv
 6197      795          1023      BellSouth Network Solutions, 
23577      757           771      Korea Telecom (ATM-MPLS)
 7011      634           731      Citizens Utilities 
 9498      591           933      BHARTI BT INTERNET LTD.
 4766      571           763      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4755      499          1090      Videsh Sanchar Nigam Ltd. Aut
15270      468           500      PaeTec.net -a division of Pae
  855      464           565      Canadian Research Network 
18101      446           514      Reliance Infocom Ltd Internet
 5668      444           577      CenturyTel Internet Holdings,
17488      411           588      Hathway IP Over Cable Interne
 1239      408           827      Sprint 
33588      403           425      Bresnan Communications, LLC. 
 6198      390           552      BellSouth Network Solutions, 

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

   4:9         7:1         8:61        9:1        12:1658     13:1      
  15:15       16:3        17:3        18:5        20:36       24:873    
  25:1        32:54       38:278      40:57       41:66       44:2      
  47:10       52:4        55:1        56:3        57:25       58:292    
  59:376      60:203      61:953      62:1048     63:1901     64:3206   
  65:2300     66:3135     67:715      68:637      69:1715     70:426    
  71:133      72:1140     73:1        74:148      75:55       76:22     
  80:831      81:776      82:647      83:348      84:493      85:758    
  86:465      87:478      88:272      89:766      90:2        91:177    
  97:1       116:1       117:1       118:1       119:1       120:1      
 121:129     122:68      123:26      124:574     125:786     128:304    
 129:221     130:126     131:317     132:49      133:9       134:182    
 135:44      136:180     137:113     138:190     139:53      140:519    
 141:137     142:371     143:213     144:290     145:66      146:319    
 147:139     148:366     149:190     150:115     151:117     152:90     
 153:119     154:5       155:250     156:125     157:172     158:170    
 159:147     160:98      161:88      162:228     163:162     164:450    
 165:288     166:246     167:281     168:495     169:121     170:379    
 171:15      172:1       189:131     190:356     192:5741    193:3656   
 194:2916    195:2214    196:897     198:3772    199:3274    200:4641   
 201:963     202:7176    203:7288    204:3960    205:2087    206:2434   
 207:2893    208:2432    209:3573    210:2342    211:880     212:1303   
 213:1418    214:395     215:39      216:4060    217:1179    218:358    
 219:268     220:845     221:369     222:277    

End of report
Report Website: http://thyme.apnic.net



More information about the AusNOG mailing list