[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 19 18:03:15 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 20 Jan, 2007

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

BGP routing table entries examined:                              208300
    Prefixes after maximum aggregation:                          112624
    Deaggregation factor:                                          1.85
    Unique aggregates announced to Internet:                     101475
Total ASes present in the Internet Routing Table:                 24172
Origin-only ASes present in the Internet Routing Table:           21051
Origin ASes announcing only one prefix:                           10192
Transit ASes present in the Internet Routing Table:                3121
Transit-only ASes present in the Internet Routing Table:             78
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:                 4
    Unregistered ASNs in the Routing Table:                           7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             27
Number of addresses announced to Internet:                   1660997452
    Equivalent to 99 /8s, 0 /16s and 207 /24s
    Percentage of available address space announced:               44.8
    Percentage of allocated address space announced:               63.6
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:      106510

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

Prefixes being announced by APNIC Region ASes:                    46255
    Total APNIC prefixes after maximum aggregation:               18724
    APNIC Deaggregation factor:                                    2.47
Prefixes being announced from the APNIC address blocks:           43822
    Unique aggregates announced from the APNIC address blocks:    19170
APNIC Region origin ASes present in the Internet Routing Table:    2827
APNIC Region origin ASes announcing only one prefix:                793
APNIC Region transit ASes present in the Internet Routing Table:    422
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              276302048
    Equivalent to 16 /8s, 120 /16s and 8 /24s
    Percentage of available APNIC address space announced:         86.4

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:                    102695
    Total ARIN prefixes after maximum aggregation:                60728
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:            75619
    Unique aggregates announced from the ARIN address blocks:     28899
ARIN Region origin ASes present in the Internet Routing Table:    11274
ARIN Region origin ASes announcing only one prefix:                4311
ARIN Region transit ASes present in the Internet Routing Table:    1039
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          21
Number of ARIN addresses announced to Internet:               313853056
    Equivalent to 18 /8s, 181 /16s and 4 /24s
    Percentage of available ARIN address space announced:          69.3

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:                     43136
    Total RIPE prefixes after maximum aggregation:                28202
    RIPE Deaggregation factor:                                     1.53
Prefixes being announced from the RIPE address blocks:            39854
    Unique aggregates announced from the RIPE address blocks:     26576
RIPE Region origin ASes present in the Internet Routing Table:     9058
RIPE Region origin ASes announcing only one prefix:                4785
RIPE Region transit ASes present in the Internet Routing Table:    1465
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE addresses announced to Internet:               286553764
    Equivalent to 17 /8s, 20 /16s and 118 /24s
    Percentage of available RIPE address space announced:          77.6

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:                   13696
    Total LACNIC prefixes after maximum aggregation:               4015
    LACNIC Deaggregation factor:                                   3.41
Prefixes being announced from the LACNIC address blocks:          11682
    Unique aggregates announced from the LACNIC address blocks:    7207
LACNIC Region origin ASes present in the Internet Routing Table:    759
LACNIC Region origin ASes announcing only one prefix:               248
LACNIC Region transit ASes present in the Internet Routing Table:   135
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              36298752
    Equivalent to 2 /8s, 41 /16s and 224 /24s
    Percentage of available LACNIC address space announced:        54.1

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:                   2515
    Total AfriNIC prefixes after maximum aggregation:               954
    AfriNIC Deaggregation factor:                                  2.64
Prefixes being announced from the AfriNIC address blocks:          1788
    Unique aggregates announced from the AfriNIC address blocks:   1150
AfriNIC Region origin ASes present in the Internet Routing Table:   175
AfriNIC Region origin ASes announcing only one prefix:               55
AfriNIC Region transit ASes present in the Internet Routing Table:   33
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              5369600
    Equivalent to 0 /8s, 81 /16s and 239 /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     1269       8655         268   CHINANET-BACKBONE
 4755     1091        383          75   Videsh Sanchar Nigam Ltd. Aut
 9583     1023         99          66   Sify Limited
 9498      929        467          64   BHARTI BT INTERNET LTD.
23577      774         34         702   KRNIC
 4766      760       4944         312   Korea Telecom (KIX)
17488      584         36          20   Hathway IP Over Cable Interne
 1221      570       1697         441   Telstra Pty Ltd
 7545      564        126          74   TPG Internet Pty Ltd
18101      511        103          27   Reliance Infocom Ltd Internet
17676      503      10935          66   Softbank BB Corp.
 9443      442        111          74   Primus Telecommunications
 4812      434        759          68   China Telecom (Shanghai)
 4802      361         86         150   Wantree Development
17974      357        129          14   PT TELEKOMUNIKASI INDONESIA
17557      353         35         171   Pakistan Telecom
17849      353         33          93   Telecommunications Technology
 4837      333       4071         146   chinanet IDC center beijing n
 2907      332       1749         309   SINET Japan
 7474      312        212         239   SingTel Optus Pty Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1548       6145         994   AT&T WorldNet Services
 2386     1109        586         735   AT&T Data Communications Serv
 4323     1066        820         299   Time Warner Telecom
 6197     1022        645         500   BellSouth Network Solutions, 
18566      986        272           8   Covad Communications 
  701      938       6692         751   UUNET Technologies, Inc. 
  174      934       6789         865   Cogent Communications
11492      910         99          14   Cable One 
 1239      827       2730         577   Sprint 
19262      792       2570         184   Verizon Global Networks 
20115      787        686         412   Charter Communications 
 7011      722        214         448   Citizens Utilities 
  209      717       3750         566   Qwest 
22773      716       1744          42   Cox Communications, Inc.
  721      708      21837         285   DLA Systems Automation Center
  852      609       1093         394   Telus Advanced Communications
 5668      568        161          19   CenturyTel Internet Holdings,
19916      568         49          54   OLM LLC 
  855      558        250          73   Canadian Research Network 
 6198      548        519         256   BellSouth Network Solutions, 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      547       1912         426   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         262   COLT Telecommunications
 6746      269         95         246   Dynamic Network Technologies,
  680      257       2044         251   DFN-IP service G-WiN
 3215      233       2136          96   France Telecom Transpac
 8708      233        283         220   Romania Data Systems S.A.
 1257      216       1069         172   SWIPnet Swedish IP Network
 3269      211       2375          74   TELECOM ITALIA
30890      211         18          91   SC Kappa Invexim SRL
 3246      207        354         197   Song Networks
 5416      205         13          13   BATELCO-BH
 8551      192        193          28   Bezeq International
20858      189         34           3   This AS will be used to conne
 3300      177        171          89   AUCS Communications Services 
 3352      177       1767          31   Ibernet, Internet Access Netw
12479      176        578           6   Uni2 Autonomous System
  786      171       1779         171   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      849       2015         203   UniNet S.A. de C.V. 
11830      482        299          19   Instituto Costarricense de El
11172      391        107          81   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      307        206          11   VTR PUNTO NET S.A. 
14117      259         16          13   Telefonica del Sur S.A. 
 6471      256         74          31   ENTEL CHILE S.A. 
 7303      231        103          33   Telecom Argentina Stet-France
 6147      224        182          20   Telefonica Del Peru 
 6503      217        170          92   AVANTEL, S.A. 
11556      212        105           7   Cable-Wireless Panama 
10481      181         72           8   Prima S.A. 
21826      157         21          36   INTERCABLE 
 7910      149         10          33   ANDINET ON LINE 
23216      147         19          43   RAMtelecom Telecomunicaciones
18822      145          9          10   TELEFONICA MANQUEHUE 
19169      141          9          24   Telconet 
19429      140         84          35   E.T.B. 
14522      135         21           8   SatNet S.A. 
 7738      116        442          21   Telecomunicacoes da Bahia 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      222         60           6   TEDATA
15475      154         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      106          6           4   EEPAD TISP TELECOM & INTERNET
 2905       85        176          74   The Internetworking Company o
24835       85         48           6   RAYA Telecom - Egypt
 2561       60          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
23889       50         13          15   MAURITIUS TELECOM
 5713       41        294          34   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 
33766       33          2           1   Nyala Communications Pty Ltd 
 8524       30          2           6   AUCEGYPT Autonomous System
33776       27          2           5   Starcomms Nigeria Limited
10798       23          1          14   Standard Bank of South Africa

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

  ASN   No of nets  Net Savings Description
 4755      1091        1016      Videsh Sanchar Nigam Ltd. Aut
 4134      1269        1001      CHINANET-BACKBONE
18566       986         978      Covad Communications 
 9583      1023         957      Sify Limited
11492       910         896      Cable One 
 9498       929         865      BHARTI BT INTERNET LTD.
 4323      1066         767      Time Warner Telecom
22773       716         674      Cox Communications, Inc.
 8151       849         646      UniNet S.A. de C.V. 
19262       792         608      Verizon Global Networks 
17488       584         564      Hathway IP Over Cable Interne
 5668       568         549      CenturyTel Internet Holdings,
 6197      1022         522      BellSouth Network Solutions, 
19916       568         514      OLM LLC 
 7545       564         490      TPG Internet Pty Ltd
  855       558         485      Canadian Research Network 
18101       511         484      Reliance Infocom Ltd Internet
15270       498         464      PaeTec.net -a division of Pae
11830       482         463      Instituto Costarricense de El
 4766       760         448      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
65313   PRIVATE       203.184.140.0/24      9304       Hutchison Telecom (H

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

Network            Origin AS  Description
7.1.1.0/24            1239     Sprint 
116.0.0.0/24         12654     RIPE NCC RIS Project
116.50.0.0/21        12654     RIPE NCC RIS Project
116.255.0.0/16       12654     RIPE NCC RIS Project
117.0.0.0/24         12654     RIPE NCC RIS Project
117.50.0.0/21        12654     RIPE NCC RIS Project
117.255.0.0/16       12654     RIPE NCC RIS Project
118.0.0.0/24         12654     RIPE NCC RIS Project
118.50.0.0/21        12654     RIPE NCC RIS Project
118.255.0.0/16       12654     RIPE NCC RIS Project
119.0.0.0/24         12654     RIPE NCC RIS Project
119.50.0.0/21        12654     RIPE NCC RIS Project
119.255.0.0/16       12654     RIPE NCC RIS Project
120.0.0.0/24         12654     RIPE NCC RIS Project
120.50.0.0/21        12654     RIPE NCC RIS Project
120.255.0.0/16       12654     RIPE NCC RIS Project
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      /11:32      /12:117     
/13:230     /14:412     /15:811     /16:9126    /17:3652    /18:5948    
/19:12921   /20:14539   /21:12987   /22:16561   /23:17804   /24:111456  
/25:626     /26:448     /27:360     /28:66      /29:39      /30:90      
/31:0       /32:33      

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

  ASN   No of nets  Total ann.   Description
18566      969           986      Covad Communications 
11492      896           910      Cable One 
 9583      852          1023      Sify Limited
 7018      848          1548      AT&T WorldNet Services
 2386      831          1109      AT&T Data Communications Serv
 6197      795          1022      BellSouth Network Solutions, 
23577      760           774      KRNIC
 7011      626           722      Citizens Utilities 
 9498      587           929      BHARTI BT INTERNET LTD.
 4766      569           760      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4755      500          1091      Videsh Sanchar Nigam Ltd. Aut
15270      466           498      PaeTec.net -a division of Pae
  855      456           558      Canadian Research Network 
18101      444           511      Reliance Infocom Ltd Internet
 5668      437           568      CenturyTel Internet Holdings,
 1239      412           827      Sprint 
17488      407           584      Hathway IP Over Cable Interne
33588      400           422      Bresnan Communications, LLC. 
 6517      388           414      Yipes Communications, Inc. 

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

   4:9         7:1         8:62        9:1        12:1661     13:1      
  15:15       16:3        17:3        18:5        20:36       24:871    
  25:1        32:55       38:276      40:56       41:61       44:2      
  47:10       52:4        55:1        56:3        57:24       58:295    
  59:376      60:199      61:953      62:1037     63:1901     64:3183   
  65:2312     66:3130     67:708      68:640      69:1722     70:416    
  71:133      72:1137     73:1        74:138      75:61       76:20     
  80:819      81:778      82:641      83:346      84:494      85:799    
  86:435      87:460      88:268      89:754      90:2        91:139    
  97:1       116:1       117:1       118:1       119:1       120:1      
 121:129     122:66      123:25      124:551     125:753     128:311    
 129:219     130:112     131:315     132:49      133:9       134:183    
 135:44      136:180     137:113     138:190     139:54      140:522    
 141:135     142:365     143:211     144:266     145:67      146:321    
 147:138     148:365     149:189     150:114     151:118     152:90     
 153:119     154:5       155:245     156:166     157:168     158:167    
 159:147     160:99      161:101     162:227     163:162     164:451    
 165:239     166:244     167:281     168:493     169:121     170:378    
 171:15      172:1       189:73      190:351     192:5737    193:3638   
 194:2913    195:2206    196:920     198:3784    199:3283    200:4610   
 201:959     202:7129    203:7261    204:3958    205:2095    206:2407   
 207:2895    208:2405    209:3563    210:2317    211:880     212:1306   
 213:1422    214:391     215:39      216:4103    217:1180    218:356    
 219:267     220:854     221:368     222:289    

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



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