[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Sep 1 04:12:25 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 01 Sep, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/09/01/0400

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

BGP routing table entries examined:                              229742
    Prefixes after maximum aggregation:                          119898
    Deaggregation factor:                                          1.92
    Unique aggregates announced to Internet:                     110820
Total ASes present in the Internet Routing Table:                 26109
    Prefixes per ASN:                                              8.80
Origin-only ASes present in the Internet Routing Table:           22732
Origin ASes announcing only one prefix:                           11081
Transit ASes present in the Internet Routing Table:                3377
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:                                      20
    Max AS path prepend of ASN (35389)                               16
Prefixes from unregistered ASNs in the Routing Table:                10
    Unregistered ASNs in the Routing Table:                           6
Prefixes from 32-bit ASNs in the Routing Table:                       6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             11
Number of addresses announced to Internet:                   1756836704
    Equivalent to 104 /8s, 183 /16s and 51 /24s
    Percentage of available address space announced:               47.4
    Percentage of allocated address space announced:               62.1
    Percentage of available address space allocated:               76.4
Total number of prefixes smaller than registry allocations:      121719

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

Prefixes being announced by APNIC Region ASes:                    53719
    Total APNIC prefixes after maximum aggregation:               20575
    APNIC Deaggregation factor:                                    2.61
Prefixes being announced from the APNIC address blocks:           50635
    Unique aggregates announced from the APNIC address blocks:    21459
APNIC Region origin ASes present in the Internet Routing Table:    3046
    APNIC Prefixes per ASN:                                       16.62
APNIC Region origin ASes announcing only one prefix:                809
APNIC Region transit ASes present in the Internet Routing Table:    467
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              313653792
    Equivalent to 18 /8s, 177 /16s and 250 /24s
    Percentage of available APNIC address space announced:         77.7

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:                    108857
    Total ARIN prefixes after maximum aggregation:                62963
    ARIN Deaggregation factor:                                     1.73
Prefixes being announced from the ARIN address blocks:            80198
    Unique aggregates announced from the ARIN address blocks:     31899
ARIN Region origin ASes present in the Internet Routing Table:    11791
    ARIN Prefixes per ASN:                                         6.80
ARIN Region origin ASes announcing only one prefix:                4522
ARIN Region transit ASes present in the Internet Routing Table:    1091
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          14
Number of ARIN addresses announced to Internet:               343064576
    Equivalent to 20 /8s, 114 /16s and 192 /24s
    Percentage of available ARIN address space announced:          75.7

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:                     48026
    Total RIPE prefixes after maximum aggregation:                30905
    RIPE Deaggregation factor:                                     1.55
Prefixes being announced from the RIPE address blocks:            44417
    Unique aggregates announced from the RIPE address blocks:     29477
RIPE Region origin ASes present in the Internet Routing Table:    10130
    RIPE Prefixes per ASN:                                         4.38
RIPE Region origin ASes announcing only one prefix:                5399
RIPE Region transit ASes present in the Internet Routing Table:    1605
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               325697152
    Equivalent to 19 /8s, 105 /16s and 190 /24s
    Percentage of available RIPE address space announced:          74.7

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, 80/4, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   16441
    Total LACNIC prefixes after maximum aggregation:               4422
    LACNIC Deaggregation factor:                                   3.72
Prefixes being announced from the LACNIC address blocks:          14536
    Unique aggregates announced from the LACNIC address blocks:    7794
LACNIC Region origin ASes present in the Internet Routing Table:    858
    LACNIC Prefixes per ASN:                                      16.94
LACNIC Region origin ASes announcing only one prefix:               282
LACNIC Region transit ASes present in the Internet Routing Table:   144
Average LACNIC Region AS path length visible:                       3.9
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              42168064
    Equivalent to 2 /8s, 131 /16s and 111 /24s
    Percentage of available LACNIC address space announced:        62.8

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:                   2683
    Total AfriNIC prefixes after maximum aggregation:              1021
    AfriNIC Deaggregation factor:                                  2.63
Prefixes being announced from the AfriNIC address blocks:          2261
    Unique aggregates announced from the AfriNIC address blocks:   1335
AfriNIC Region origin ASes present in the Internet Routing Table:   206
    AfriNIC Prefixes per ASN:                                     10.98
AfriNIC Region origin ASes announcing only one prefix:               69
AfriNIC Region transit ASes present in the Internet Routing Table:   36
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              7426304
    Equivalent to 0 /8s, 113 /16s and 81 /24s
    Percentage of available AfriNIC address space announced:       22.1

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
 4755     1345        383          74   Videsh Sanchar Nigam Ltd. Aut
 9583     1134        100         106   Sify Limited
 4134     1071      11178         289   CHINANET-BACKBONE
 9498      997        532          66   BHARTI BT INTERNET LTD.
 4766      803       5441         319   Korea Telecom (KIX)
17488      796         52          55   Hathway IP Over Cable Interne
23577      786         34         682   Korea Telecom (ATM-MPLS)
 7545      729        159         121   TPG Internet Pty Ltd
18101      595        119          50   Reliance Infocom Ltd Internet
 4812      547        968          96   China Telecom (Shanghai)
 1221      542       1951         424   Telstra Pty Ltd
 4668      516         68          10   LG-EDS Systems Inc.
17676      503      10919          64   Softbank BB Corp.
 4808      483        779         114   CNCGROUP IP network: China169
 9443      464        122          77   Primus Telecommunications
 4802      432        116         158   Wantree Development
 7474      378        216         267   SingTel Optus Pty Ltd
17974      373        130          13   PT TELEKOMUNIKASI INDONESIA
 4837      366       5104         167   chinanet IDC center beijing n
 9829      363        258          14   BSNL National Internet Backbo

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1475       6074         993   AT&T WorldNet Services
 4323     1324        992         373   Time Warner Telecom
 2386     1214        618         748   AT&T Data Communications Serv
11492     1137        110          11   Cable One 
 6478     1132        324         169   AT&T Worldnet Services 
 6197     1028        718         511   BellSouth Network Solutions, 
18566     1022        288           9   Covad Communications 
  174      975       6780         863   Cogent Communications
  701      938       6577         716   UUNET Technologies, Inc. 
 7011      919        278         549   Citizens Utilities 
20115      817        751         436   Charter Communications 
 1239      802       2718         563   Sprint 
19262      775       2745         184   Verizon Global Networks 
22773      762       2149          50   Cox Communications, Inc.
  209      739       3836         584   Qwest 
 5668      657        176          23   CenturyTel Internet Holdings,
 6517      590        165          37   Yipes Communications, Inc. 
 3356      587      10811         344   Level 3 Communications, LLC 
  852      576       1095         361   Telus Advanced Communications
15270      574        160          38   PaeTec.net -a division of Pae

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      492       1923         394   UUNET - Commercial IP service
24863      367         57          40   LINKdotNET AS number
 9116      346        168          26   Goldenlines main autonomous s
 3301      314       1456         294   TeliaNet Sweden
 3320      314       6035         261   Deutsche Telekom AG
 6746      287        130         263   Dynamic Network Technologies,
  680      269       2045         257   DFN-IP service G-WiN
 8708      262        420         241   Romania Data Systems S.A.
 8220      260        445         243   COLT Telecommunications
 3215      258       2424          98   France Telecom Transpac
 8551      248        244          28   Bezeq International
 3352      227       1868          38   Ibernet, Internet Access Netw
 5089      222       1658          54   NTL Group Limited
 3269      221       2775          73   TELECOM ITALIA
 9121      214       1441          24   TTnet Autonomous System
 3292      195       1379         175   TDC Tele Danmark
 1257      192       1195         170   SWIPnet Swedish IP Network
 3300      192        172          92   AUCS Communications Services 
12479      192        578           6   Uni2 Autonomous System
 3246      187        253         177   Song Networks

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      904       1974         205   UniNet S.A. de C.V. 
11830      517        299           9   Instituto Costarricense de El
16814      426         26           9   NSS, S.A. 
11172      371        114          57   Servicios Alestra S.A de C.V 
 7303      339        177          45   Telecom Argentina Stet-France
14522      333         28           7   SatNet S.A. 
 6471      322         75          33   ENTEL CHILE S.A. 
22047      318        246          13   VTR PUNTO NET S.A. 
14117      281         19          15   Telefonica del Sur S.A. 
10481      278        104           9   Prima S.A. 
11556      235        128           3   Cable-Wireless Panama 
 6147      227        178          24   Telefonica Del Peru 
10620      223         62          23   TVCABLE BOGOTA 
 6503      201        170          82   AVANTEL, S.A. 
23216      196         16          44   RAMtelecom Telecomunicaciones
20299      180         25          31   NEWCOM AMERICAS 
 8163      177         11           6   METROTEL REDES S.A. 
 7738      169        506          23   Telecomunicacoes da Bahia S.A
21826      168         30          59   INTERCABLE 
19169      165         12          17   Telconet 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      283        868         224   The Internet Solution 
 8452      222        188           7   TEDATA
 2018      148        301         115   Tertiary Education Network 
 6713      142        135          11   Itissalat Al-MAGHRIB
33783      126          8          11   EEPAD TISP TELECOM & INTERNET
 5536      124          8          10   Internet Egypt Network
33776      100          6           3   Starcomms Nigeria Limited
24835       87         48           6   RAYA Telecom - Egypt
15475       75         84           4   Nile Online
 2905       74        174          71   The Internetworking Company o
23889       69         24          15   MAURITIUS TELECOM
 2561       62          6           2   Egyptian Universities Network
33774       47         29          25   AS Number for Telecom Algeria
 5713       46        294          36   Telkom SA Ltd 
16637       46         21          29   Johnnic e-Ventures 
 8524       31          2          10   AUCEGYPT Autonomous System
12455       29          6           3   Jambonet Autonomous system
21280       29          4           4   Swift Global Kenya Ltd.Is an 
10798       27         16           1   Standard Bank of South Africa
21491       24         17           2   UTL On-line is RF broadband I

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

  ASN   No of nets  Net Savings Description
 4755      1345        1271      Videsh Sanchar Nigam Ltd. Aut
11492      1137        1126      Cable One 
 9583      1134        1028      Sify Limited
18566      1022        1013      Covad Communications 
 6478      1132         963      AT&T Worldnet Services 
 4323      1324         951      Time Warner Telecom
 9498       997         931      BHARTI BT INTERNET LTD.
 4134      1071         782      CHINANET-BACKBONE
17488       796         741      Hathway IP Over Cable Interne
22773       762         712      Cox Communications, Inc.
 8151       904         699      UniNet S.A. de C.V. 
 5668       657         634      CenturyTel Internet Holdings,
 7545       729         608      TPG Internet Pty Ltd
19262       775         591      Verizon Global Networks 
 6517       590         553      Yipes Communications, Inc. 
18101       595         545      Reliance Infocom Ltd Internet
15270       574         536      PaeTec.net -a division of Pae
 6197      1028         517      BellSouth Network Solutions, 
19916       568         517      OLM LLC 
11830       517         508      Instituto Costarricense de El

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

Bad AS  Designation  Network              Transit AS  Description
64250   RESERVED      122.171.0.0/24        9498       BHARTI BT INTERNET L
64250   RESERVED      122.171.1.0/24        9498       BHARTI BT INTERNET L
64586   PRIVATE       192.170.73.0/24       4845       Chung Hsiao East Roa
64501   RESERVED      195.189.160.0/24     35041       Crystone Autonomous 
64586   PRIVATE       202.165.137.0/24      4845       Chung Hsiao East Roa
64586   PRIVATE       202.165.140.0/24      4845       Chung Hsiao East Roa
64586   PRIVATE       202.165.141.0/24      4845       Chung Hsiao East Roa
64586   PRIVATE       202.165.142.0/24      4845       Chung Hsiao East Roa
64586   PRIVATE       202.165.143.0/24      4845       Chung Hsiao East Roa
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE

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      /11:38      /12:134     
/13:260     /14:471     /15:919     /16:9620    /17:4069    /18:6596    
/19:13963   /20:16197   /21:14868   /22:19127   /23:20067   /24:120967  
/25:772     /26:1030    /27:505     /28:84      /29:5       /30:0       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6478     1131          1132      AT&T Worldnet Services 
11492     1129          1137      Cable One 
18566     1004          1022      Covad Communications 
 9583      968          1134      Sify Limited
 2386      907          1214      AT&T Data Communications Serv
 7018      816          1475      AT&T WorldNet Services
 7011      813           919      Citizens Utilities 
 6197      781          1028      BellSouth Network Solutions, 
23577      777           786      Korea Telecom (ATM-MPLS)
 4755      727          1345      Videsh Sanchar Nigam Ltd. Aut
 9498      669           997      BHARTI BT INTERNET LTD.
17488      619           796      Hathway IP Over Cable Interne
 4766      601           803      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4323      557          1324      Time Warner Telecom
 6517      556           590      Yipes Communications, Inc. 
15270      538           574      PaeTec.net -a division of Pae
 5668      522           657      CenturyTel Internet Holdings,
 4668      506           516      LG-EDS Systems Inc.
18101      500           595      Reliance Infocom Ltd Internet

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

   4:8         7:1         8:86       12:1810     13:1        15:19     
  16:3        17:3        18:13       20:36       24:967      25:1      
  32:56       33:3        38:349      40:60       41:321      44:2      
  47:4        52:4        55:3        56:3        57:25       58:471    
  59:386      60:367      61:1016     62:927      63:2002     64:3189   
  65:2369     66:3402     67:804      68:658      69:1969     70:448    
  71:105      72:1396     73:2        74:642      75:262      76:128    
  77:330      78:48       80:826      81:826      82:576      83:357    
  84:607      85:805      86:340      87:488      88:279      89:973    
  90:25       91:522      97:5       116:315     117:154     118:9      
 121:270     122:595     123:170     124:644     125:988     128:274    
 129:216     130:139     131:363     132:55      133:9       134:197    
 135:34      136:189     137:81      138:153     139:72      140:499    
 141:173     142:379     143:255     144:299     145:46      146:329    
 147:123     148:412     149:148     150:110     151:159     152:87     
 153:119     154:3       155:260     156:160     157:214     158:158    
 159:171     160:113     161:96      162:175     163:180     164:476    
 165:394     166:275     167:297     168:515     169:123     170:387    
 171:22      172:2       189:71      190:1005    192:5742    193:3972   
 194:3191    195:2296    196:974     198:3823    199:3283    200:5094   
 201:1184    202:7371    203:7710    204:3928    205:1972    206:2418   
 207:2840    208:2815    209:3479    210:2458    211:1087    212:1314   
 213:1482    214:413     215:41      216:3987    217:1191    218:325    
 219:382     220:1028    221:415     222:262    

End of report



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