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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Dec 01 13:40:30 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 [email protected]

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

If you have any comments please contact Philip Smith <[email protected]>.

Routing Table Report   04:00 +10GMT Sat 02 Dec, 2006

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

BGP routing table entries examined:                              205332
    Prefixes after maximum aggregation:                          111319
    Unique aggregates announced to Internet:                     100277
Total ASes present in the Internet Routing Table:                 23820
Origin-only ASes present in the Internet Routing Table:           20760
Origin ASes announcing only one prefix:                           10013
Transit ASes present in the Internet Routing Table:                3060
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:                                      29
    Max AS path prepend of ASN (36728)                               27
Prefixes from unregistered ASNs in the Routing Table:                 1
    Unregistered ASNs in the Routing Table:                           2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1642195372
    Equivalent to 97 /8s, 225 /16s and 233 /24s
    Percentage of available address space announced:               44.3
    Percentage of allocated address space announced:               62.9
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:      104338

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

Prefixes being announced by APNIC Region ASes:                    45512
    Total APNIC prefixes after maximum aggregation:               18619
Prefixes being announced from the APNIC address blocks:           43077
    Unique aggregates announced from the APNIC address blocks:    19414
APNIC Region origin ASes present in the Internet Routing Table:    2778
APNIC Region origin ASes announcing only one prefix:                782
APNIC Region transit ASes present in the Internet Routing Table:    411
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              270775520
    Equivalent to 16 /8s, 35 /16s and 180 /24s
    Percentage of available APNIC address space announced:         84.7

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, 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:                    101808
    Total ARIN prefixes after maximum aggregation:                60182
Prefixes being announced from the ARIN address blocks:            74992
    Unique aggregates announced from the ARIN address blocks:     28501
ARIN Region origin ASes present in the Internet Routing Table:    11192
ARIN Region origin ASes announcing only one prefix:                4257
ARIN Region transit ASes present in the Internet Routing Table:    1029
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               311376640
    Equivalent to 18 /8s, 143 /16s and 59 /24s
    Percentage of available ARIN address space announced:          68.7

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:                     42128
    Total RIPE prefixes after maximum aggregation:                27602
Prefixes being announced from the RIPE address blocks:            38996
    Unique aggregates announced from the RIPE address blocks:     26031
RIPE Region origin ASes present in the Internet Routing Table:     8851
RIPE Region origin ASes announcing only one prefix:                4682
RIPE Region transit ASes present in the Internet Routing Table:    1427
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          17
Number of RIPE addresses announced to Internet:               278929796
    Equivalent to 16 /8s, 160 /16s and 33 /24s
    Percentage of available RIPE address space announced:          75.6

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:                   13409
    Total LACNIC prefixes after maximum aggregation:               3975
Prefixes being announced from the LACNIC address blocks:          11385
    Unique aggregates announced from the LACNIC address blocks:    6917
LACNIC Region origin ASes present in the Internet Routing Table:    751
LACNIC Region origin ASes announcing only one prefix:               243
LACNIC Region transit ASes present in the Internet Routing Table:   134
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        17
Number of LACNIC addresses announced to Internet:              35219200
    Equivalent to 2 /8s, 25 /16s and 103 /24s
    Percentage of available LACNIC address space announced:        52.5

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:                   2473
    Total AfriNIC prefixes after maximum aggregation:               941
Prefixes being announced from the AfriNIC address blocks:          1707
    Unique aggregates announced from the AfriNIC address blocks:   1078
AfriNIC Region origin ASes present in the Internet Routing Table:   171
AfriNIC Region origin ASes announcing only one prefix:               49
AfriNIC Region transit ASes present in the Internet Routing Table:   27
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              4480768
    Equivalent to 0 /8s, 68 /16s and 95 /24s
    Percentage of available AfriNIC address space announced:       13.4

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     1231       8525         248   CHINANET-BACKBONE
 4755     1045        384          69   Videsh Sanchar Nigam Ltd. Aut
 9583      985         95         175   Sify Limited
 9498      893        212          62   BHARTI BT INTERNET LTD.
23577      777         35         707   KRNIC
 4766      744       4945         306   Korea Telecom (KIX)
 1221      581       1698         446   Telstra Pty Ltd
17488      556         35          20   Hathway IP Over Cable Interne
 7545      549        126          74   TPG Internet Pty Ltd
17676      501      10934          65   Softbank BB Corp.
18101      489         87          23   Reliance Infocom Ltd Internet
 9443      442        111          74   Primus Telecommunications
 9942      437         81         131   COMindico Australia
 4812      427        749          67   China Telecom (Shanghai)
17849      423         36         126   Telecommunications Technology
 4802      410         86         150   Wantree Development
17974      369        129          12   PT TELEKOMUNIKASI INDONESIA
17557      366         31         176   Pakistan Telecom
 2907      332       1749         309   SINET Japan
 4837      325       3652         141   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1551       6210         982   AT&T WorldNet Services
 2386     1108        570         736   AT&T Data Communications Serv
 4323     1046        805         297   Time Warner Telecom
 6197     1021        629         497   BellSouth Network Solutions, 
18566      979        272           8   Covad Communications 
  701      953       6707         774   UUNET Technologies, Inc. 
  174      945       6821         867   Cogent Communications
11492      839         98          14   Cable One 
  721      826      21905         298   DLA Systems Automation Center
 1239      822       2730         575   Sprint 
19262      786       2452         177   Verizon Global Networks 
20115      770        688         412   Charter Communications 
  209      712       3765         558   Qwest 
22773      710       1744          41   Cox Communications, Inc.
 7011      692        213         431   Citizens Utilities 
  852      596       1091         389   Telus Advanced Communications
19916      567         48          57   OLM LLC 
 6198      549        527         256   BellSouth Network Solutions, 
 5668      548        161          19   CenturyTel Internet Holdings,
  855      539        250          73   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      547       1928         426   UUNET - Commercial IP service
 3301      308       1215         292   TeliaNet Sweden
 3320      298       4992         246   Deutsche Telekom AG
24863      287         44          27   LINKdotNET AS number
 8220      272        472         262   COLT Telecommunications
 6746      260         92         237   Dynamic Network Technologies,
  680      250       2041         246   DFN-IP service G-WiN
 9116      231        134          23   Goldenlines main autonomous s
 8708      228        282         214   Romania Data Systems S.A.
 3215      223       2020          96   France Telecom Transpac
 1257      218       1073         172   SWIPnet Swedish IP Network
 3246      209        370         199   Song Networks
 3269      208       2357          75   TELECOM ITALIA
 5416      204         13          13   BATELCO-BH
30890      202         18          82   SC Kappa Invexim SRL
 8551      199        197          24   Bezeq International
 6830      184        823          39   UPC Distribution Services
 3300      177        171          95   AUCS Communications Services 
 3352      172       1751          30   Ibernet, Internet Access Netw
  786      171       1779         171   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      759       1922         208   UniNet S.A. de C.V. 
11830      484        299          19   Instituto Costarricense de El
11172      384        104          78   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      307        206          11   VTR PUNTO NET S.A. 
 6471      258         74          31   ENTEL CHILE S.A. 
14117      254         16          13   Telefonica del Sur S.A. 
 7303      225        101          37   Telecom Argentina Stet-France
 6147      209        148          23   Telefonica Del Peru 
11556      204        101           6   Cable-Wireless Panama 
 6503      202        170          93   AVANTEL, S.A. 
10481      181         72           8   Prima S.A. 
21826      150         20          39   INTERCABLE 
 7910      143         10          31   ANDINET ON LINE 
23216      143         19          43   RAMtelecom Telecomunicaciones
19169      139          9          22   Telconet 
19429      135         84          34   E.T.B. 
14522      131         20           9   SatNet S.A. 
18822      129          8          10   TELEFONICA MANQUEHUE 
 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      292        804         232   The Internet Solution 
 8452      221         60           7   TEDATA
15475      147         84           4   Nile Online
 6713      145        136          12   Itissalat Al-MAGHRIB
 2018      133        297         111   Tertiary Education Network 
 5536      123          8          15   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      110          6           4   EEPAD TISP TELECOM & INTERNET
 2905       83        173          71   The Internetworking Company o
 2561       57          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
 5713       40        294          33   Telkom SA Ltd 
12455       40          6           3   Jambonet Autonomous system
23889       35         10          14   MAURITIUS TELECOM
33774       34          8          21   AS Number for Telecom Algeria
16637       33         21          25   Johnnic e-Ventures 
 8524       31          2           5   AUCEGYPT Autonomous System
15804       27          2           1   AS of The Way Out Internet So
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
 4134      1231         983      CHINANET-BACKBONE
 4755      1045         976      Videsh Sanchar Nigam Ltd. Aut
18566       979         971      Covad Communications 
 9498       893         831      BHARTI BT INTERNET LTD.
11492       839         825      Cable One 
 9583       985         810      Sify Limited
 4323      1046         749      Time Warner Telecom
22773       710         669      Cox Communications, Inc.
19262       786         609      Verizon Global Networks 
 8151       759         551      UniNet S.A. de C.V. 
17488       556         536      Hathway IP Over Cable Interne
 5668       548         529      CenturyTel Internet Holdings,
  721       826         528      DLA Systems Automation Center
 6197      1021         524      BellSouth Network Solutions, 
19916       567         510      OLM LLC 
 7545       549         475      TPG Internet Pty Ltd
  855       539         466      Canadian Research Network 
18101       489         466      Reliance Infocom Ltd Internet
11830       484         465      Instituto Costarricense de El
15270       489         455      PaeTec.net -a division of Pae

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

Bad AS  Designation  Network              Transit AS  Description
64599   PRIVATE       64.200.115.0/24      32083       Omnispring 

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
176.16.0.0/16         7908     Comsat Argentina S.A. 
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 
192.172.0.0/19         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      /11:30      /12:111     
/13:223     /14:398     /15:794     /16:9109    /17:3622    /18:5839    
/19:12681   /20:14292   /21:12900   /22:16291   /23:17718   /24:109543  
/25:654     /26:475     /27:370     /28:75      /29:44      /30:88      
/31:0       /32:33      

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

  ASN   No of nets  Total ann.   Description
18566      962           979      Covad Communications 
 2386      826          1108      AT&T Data Communications Serv
 7018      826          1551      AT&T WorldNet Services
11492      825           839      Cable One 
 9583      819           985      Sify Limited
 6197      799          1021      BellSouth Network Solutions, 
23577      763           777      KRNIC
 7011      597           692      Citizens Utilities 
19916      562           567      OLM LLC 
 4766      555           744      Korea Telecom (KIX)
 9498      546           893      BHARTI BT INTERNET LTD.
 4755      468          1045      Videsh Sanchar Nigam Ltd. Aut
15270      459           489      PaeTec.net -a division of Pae
  855      436           539      Canadian Research Network 
 5668      423           548      CenturyTel Internet Holdings,
18101      421           489      Reliance Infocom Ltd Internet
17849      409           423      Telecommunications Technology
 1239      406           822      Sprint 
 6198      388           549      BellSouth Network Solutions, 
33588      388           411      Bresnan Communications, LLC. 

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

   4:9         8:67        9:1        12:1649     13:1        15:15     
  16:3        17:3        18:4        20:39       24:840      25:1      
  32:56       38:269      40:57       41:33       44:2        47:8      
  52:4        53:1        55:1        56:3        57:24       58:269    
  59:343      60:217      61:949      62:1059     63:1884     64:3173   
  65:2291     66:3119     67:674      68:658      69:1714     70:395    
  71:113      72:1023     74:112      75:34       76:14       80:817    
  81:759      82:641      83:381      84:484      85:755      86:420    
  87:434      88:277      89:635      90:1        91:100      97:1      
 121:77      122:32      123:3       124:470     125:736     128:309    
 129:206     130:126     131:322     132:48      133:9       134:178    
 135:42      136:179     137:115     138:187     139:48      140:523    
 141:135     142:346     143:213     144:253     145:67      146:329    
 147:139     148:360     149:172     150:109     151:118     152:82     
 153:110     154:5       155:262     156:148     157:163     158:166    
 159:139     160:98      161:86      162:217     163:162     164:237    
 165:236     166:244     167:274     168:487     169:123     170:394    
 171:12      172:1       189:12      190:312     192:5732    193:3583   
 194:2835    195:2147    196:909     198:3785    199:3286    200:4585   
 201:928     202:7006    203:7221    204:3946    205:2096    206:2415   
 207:2910    208:2333    209:3553    210:2230    211:861     212:1367   
 213:1463    214:382     215:39      216:4109    217:1148    218:335    
 219:250     220:815     221:367     222:250    

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