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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Sep 29 14:09:33 2006

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@lists.apnic.net

For historical data, please see http://thyme.apnic.net.

If you have any comments please contact Philip Smith <pfs@cisco.com>.

Routing Table Report   04:00 +10GMT Sat 30 Sep, 2006

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

BGP routing table entries examined:                              199091
    Prefixes after maximum aggregation:                          108525
    Unique aggregates announced to Internet:                      96637
Total ASes present in the Internet Routing Table:                 23229
Origin-only ASes present in the Internet Routing Table:           20244
Origin ASes announcing only one prefix:                            9714
Transit ASes present in the Internet Routing Table:                2985
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      29
    Max AS path prepend of ASN (36728)                               27
Prefixes from unregistered ASNs in the Routing Table:                 2
    Unregistered ASNs in the Routing Table:                           3
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             10
Number of addresses announced to Internet:                   1593268492
    Equivalent to 94 /8s, 247 /16s and 89 /24s
    Percentage of available address space announced:               43.0
    Percentage of allocated address space announced:               61.0
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:       99681

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

Prefixes being announced by APNIC Region ASes:                    43613
    Total APNIC prefixes after maximum aggregation:               17518
Prefixes being announced from the APNIC address blocks:           41222
    Unique aggregates announced from the APNIC address blocks:    18560
APNIC Region origin ASes present in the Internet Routing Table:    2699
APNIC Region origin ASes announcing only one prefix:                752
APNIC Region transit ASes present in the Internet Routing Table:    406
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         24
Number of APNIC addresses announced to Internet:              262669664
    Equivalent to 15 /8s, 168 /16s and 5 /24s
    Percentage of available APNIC address space announced:         82.1

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, 121/8, 122/7, 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:                    100462
    Total ARIN prefixes after maximum aggregation:                59518
Prefixes being announced from the ARIN address blocks:            73762
    Unique aggregates announced from the ARIN address blocks:     27824
ARIN Region origin ASes present in the Internet Routing Table:    11016
ARIN Region origin ASes announcing only one prefix:                4180
ARIN Region transit ASes present in the Internet Routing Table:    1019
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               302082560
    Equivalent to 18 /8s, 1 /16s and 106 /24s
    Percentage of available ARIN address space announced:          78.3

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, 199/8, 204/6,
                       208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     40317
    Total RIPE prefixes after maximum aggregation:                26767
Prefixes being announced from the RIPE address blocks:            37266
    Unique aggregates announced from the RIPE address blocks:     25004
RIPE Region origin ASes present in the Internet Routing Table:     8553
RIPE Region origin ASes announcing only one prefix:                4489
RIPE Region transit ASes present in the Internet Routing Table:    1377
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               266490532
    Equivalent to 15 /8s, 226 /16s and 82 /24s
    Percentage of available RIPE address space announced:          72.2

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
                       40960-41983
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:                   12355
    Total LACNIC prefixes after maximum aggregation:               3804
Prefixes being announced from the LACNIC address blocks:          10360
    Unique aggregates announced from the LACNIC address blocks:    6145
LACNIC Region origin ASes present in the Internet Routing Table:    726
LACNIC Region origin ASes announcing only one prefix:               245
LACNIC Region transit ASes present in the Internet Routing Table:   129
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC addresses announced to Internet:              32790784
    Equivalent to 1 /8s, 244 /16s and 89 /24s
    Percentage of available LACNIC address space announced:        48.9

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:                   2342
    Total AfriNIC prefixes after maximum aggregation:               918
Prefixes being announced from the AfriNIC address blocks:          1638
    Unique aggregates announced from the AfriNIC address blocks:   1070
AfriNIC Region origin ASes present in the Internet Routing Table:   162
AfriNIC Region origin ASes announcing only one prefix:               48
AfriNIC Region transit ASes present in the Internet Routing Table:   26
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              4247296
    Equivalent to 0 /8s, 64 /16s and 207 /24s
    Percentage of available AfriNIC address space announced:       12.7

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     1239       8158         238   CHINANET-BACKBONE
 4755      999        255          66   Videsh Sanchar Nigam Ltd. Aut
 9583      954        108          58   Sify Limited
 9498      856        212          72   BHARTI BT INTERNET LTD.
 4766      741       4436         307   Korea Telecom (KIX)
 1221      608       1780         466   Telstra Pty Ltd
 7545      540        124          74   TPG Internet Pty Ltd
17488      534         33          12   Hathway IP Over Cable Interne
17676      499      10933          63   Softbank BB Corp.
18101      456         87          19   Reliance Infocom Ltd Internet
 9443      454        111          74   Primus Telecommunications
 9942      424         77         124   COMindico Australia
17849      424         31         127   Telecommunications Technology
 4802      411         86         150   Wantree Development
 4812      407        741          63   China Telecom (Shanghai)
17974      371        129          12   PT TELEKOMUNIKASI INDONESIA
17557      363         30         176   Pakistan Telecom
 2907      337       1734         313   SINET Japan
 4837      323       3554         139   chinanet IDC center beijing n
10139      315         23           6   Meridian Telekoms

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1539       6257         992   AT&T WorldNet Services
 2386     1168        594         843   AT&T Data Communications Serv
 6197     1027        643         478   BellSouth Network Solutions, 
 4323     1021        782         290   Time Warner Telecom
  174      979       6825         902   Cogent Communications
  721      964      21893         305   DLA Systems Automation Center
18566      964        272           8   Covad Communications 
  701      952       6742         781   UUNET Technologies, Inc. 
 1239      837       2763         588   Sprint 
11492      750         90          13   Cable One 
19262      747       2340         188   Verizon Global Networks 
20115      743        666         387   Charter Communications 
22773      713       1744          46   Cox Communications, Inc.
  209      705       3631         554   Qwest 
 7011      665        208         419   Citizens Utilities 
  852      589       1070         386   Telus Advanced Communications
 6478      588       1269         382   AT&T Worldnet Services 
19916      565         49          54   OLM LLC 
  855      552        249          74   Canadian Research Network 
 5668      537        145          18   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      544       1928         424   UUNET - Commercial IP service
 3301      314       1186         298   TeliaNet Sweden
 3320      297       5013         242   Deutsche Telekom AG
 8220      278        455         264   COLT Telecommunications
24863      273         41          30   LINKdotNET AS number
  680      252       2041         247   DFN-IP service G-WiN
 6746      240         90         219   Dynamic Network Technologies,
 3246      228        469         218   Song Networks
 1257      221        740         168   SWIPnet Swedish IP Network
 8708      219        278         206   Romania Data Systems S.A.
 3215      209       1832          96   France Telecom Transpac
 3269      203       2261          73   TELECOM ITALIA
 8551      199        182          29   Bezeq International
 9116      199        134          23   Goldenlines main autonomous s
 6830      198        879          43   UPC Distribution Services
30890      192         17          82   SC Kappa Invexim SRL
 8866      186         37          15   Bulgarian Telecommunication C
 5416      181         12          11   BATELCO-BH
 3300      174        171          97   AUCS Communications Services 
  786      171       1779         171   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      633       1811         225   UniNet S.A. de C.V. 
11172      373         98          86   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      303        206          11   VTR PUNTO NET S.A. 
 6147      263        140          24   Telefonica Del Peru 
 6471      255         74          30   ENTEL CHILE S.A. 
14117      229         15           8   Telefonica del Sur S.A. 
 7303      204         90          27   Telecom Argentina Stet-France
 6503      183        168          84   AVANTEL, S.A. 
10481      181         72           8   Prima S.A. 
11830      165        298          25   Instituto Costarricense de El
23216      146         21          10   RAMtelecom Telecomunicaciones
21826      144         18          29   INTERCABLE 
 7910      139          9          14   ANDINET ON LINE 
19169      136          9          21   Telconet 
19429      136         83          38   E.T.B. 
11556      132         96           4   Cable-Wireless Panama 
18822      129          8          10   TELEFONICA MANQUEHUE 
14522      116         18           9   SatNet S.A. 
 7738      113        410          20   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      289        803         233   The Internet Solution 
 8452      173         60           7   TEDATA
 6713      144        135          11   Itissalat Al-MAGHRIB
15475      142         84           4   Nile Online
 2018      134        297         111   Tertiary Education Network 
 5536      121          8          18   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      107          6           2   EEPAD TISP TELECOM & INTERNET
 2905       80        159          71   The Internetworking Company o
 2561       55          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
12455       38          6           3   Jambonet Autonomous system
 5713       36        293          32   Telkom SA Ltd 
33774       32          7          20   AS Number for Telecom Algeria
21280       26          4           4   Swift Global Kenya Ltd.Is an 
23889       26          8          11   MAURITIUS TELECOM
16637       24         19          23   Johnnic e-Ventures 
10798       23          1          14   Standard Bank of South Africa
21491       23         17           2   UTL On-line is RF broadband I
 8524       22          1           5   AUCEGYPT Autonomous System

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

  ASN   No of nets  Net Savings Description
 4134      1239        1001      CHINANET-BACKBONE
18566       964         956      Covad Communications 
 4755       999         933      Videsh Sanchar Nigam Ltd. Aut
 9583       954         896      Sify Limited
 9498       856         784      BHARTI BT INTERNET LTD.
11492       750         737      Cable One 
 4323      1021         731      Time Warner Telecom
22773       713         667      Cox Communications, Inc.
  721       964         659      DLA Systems Automation Center
19262       747         559      Verizon Global Networks 
 6197      1027         549      BellSouth Network Solutions, 
17488       534         522      Hathway IP Over Cable Interne
 5668       537         519      CenturyTel Internet Holdings,
19916       565         511      OLM LLC 
  855       552         478      Canadian Research Network 
 7545       540         466      TPG Internet Pty Ltd
18101       456         437      Reliance Infocom Ltd Internet
17676       499         436      Softbank BB Corp.
 4766       741         434      Korea Telecom (KIX)
15270       467         432      PaeTec.net -a division of Pae

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

Bad AS  Designation  Network              Transit AS  Description
65001   PRIVATE       88.213.181.0/24      28929       Tiziano D'Inca' - AS
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com

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

Network            Origin AS  Description
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
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.84.205.0/24        719     LANLINK autonomous system
192.172.0.0/19         721     DLA Systems Automation Center
192.249.0.0/20        3450     University of Tennessee, Knox

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       /10:13      /11:31      /12:106     
/13:212     /14:384     /15:762     /16:9022    /17:3494    /18:5705    
/19:12297   /20:13887   /21:12252   /22:15548   /23:16940   /24:107129  
/25:430     /26:413     /27:194     /28:66      /29:41      /30:89      
/31:0       /32:49      

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

  ASN   No of nets  Total ann.   Description
18566      947           964      Covad Communications 
 2386      884          1168      AT&T Data Communications Serv
 7018      807          1539      AT&T WorldNet Services
 6197      806          1027      BellSouth Network Solutions, 
 9583      786           954      Sify Limited
11492      738           750      Cable One 
 7011      572           665      Citizens Utilities 
19916      559           565      OLM LLC 
 4766      550           741      Korea Telecom (KIX)
 9498      513           856      BHARTI BT INTERNET LTD.
15270      436           467      PaeTec.net -a division of Pae
  855      432           552      Canadian Research Network 
 4755      431           999      Videsh Sanchar Nigam Ltd. Aut
 5668      419           537      CenturyTel Internet Holdings,
17849      412           424      Telecommunications Technology
 1239      406           837      Sprint 
18101      389           456      Reliance Infocom Ltd Internet
22773      373           713      Cox Communications, Inc.
33588      370           391      Bresnan Communications, LLC. 
17488      354           534      Hathway IP Over Cable Interne

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

   4:8         8:52       12:1654     13:1        15:16       16:3      
  17:3        18:4        20:41       24:829      25:1        32:57     
  38:254      40:56       41:19       44:3        47:7        52:4      
  53:1        55:1        56:3        57:25       58:223      59:268    
  60:168      61:896      62:973      63:1899     64:3109     65:2249   
  66:3047     67:644      68:657      69:1649     70:391      71:89     
  72:942      74:81       75:7        80:804      81:695      82:602    
  83:375      84:399      85:663      86:423      87:465      88:195    
  89:474     121:35      122:14      123:1       124:374     125:646    
 128:283     129:229     130:120     131:309     132:34      133:9      
 134:167     135:51      136:177     137:87      138:223     139:47     
 140:523     141:134     142:361     143:188     144:237     145:42     
 146:319     147:137     148:363     149:177     150:115     151:120    
 152:76      153:121     154:5       155:230     156:159     157:164    
 158:155     159:173     160:98      161:84      162:217     163:152    
 164:231     165:224     166:239     167:249     168:485     169:129    
 170:377     171:11      172:1       190:222     192:5733    193:3488   
 194:2722    195:2085    196:905     198:3894    199:3331    200:4445   
 201:992     202:6907    203:7175    204:3932    205:2095    206:2428   
 207:2951    208:2314    209:3503    210:2175    211:838     212:1349   
 213:1500    214:382     215:40      216:4049    217:1129    218:341    
 219:261     220:795     221:385     222:232    

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




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