Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 15 18:02:59 UTC 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 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 16 Dec, 2006

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

BGP routing table entries examined:                              206030
    Prefixes after maximum aggregation:                          111901
    Unique aggregates announced to Internet:                     100700
Total ASes present in the Internet Routing Table:                 23941
Origin-only ASes present in the Internet Routing Table:           20876
Origin ASes announcing only one prefix:                           10063
Transit ASes present in the Internet Routing Table:                3065
Transit-only ASes present in the Internet Routing Table:             75
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:                   1646316844
    Equivalent to 98 /8s, 32 /16s and 205 /24s
    Percentage of available address space announced:               44.4
    Percentage of allocated address space announced:               63.0
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:      104754

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

Prefixes being announced by APNIC Region ASes:                    45842
    Total APNIC prefixes after maximum aggregation:               18744
Prefixes being announced from the APNIC address blocks:           43401
    Unique aggregates announced from the APNIC address blocks:    19449
APNIC Region origin ASes present in the Internet Routing Table:    2801
APNIC Region origin ASes announcing only one prefix:                786
APNIC Region transit ASes present in the Internet Routing Table:    419
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              272165600
    Equivalent to 16 /8s, 56 /16s and 234 /24s
    Percentage of available APNIC address space announced:         85.1

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:                    101754
    Total ARIN prefixes after maximum aggregation:                60344
Prefixes being announced from the ARIN address blocks:            74962
    Unique aggregates announced from the ARIN address blocks:     28529
ARIN Region origin ASes present in the Internet Routing Table:    11230
ARIN Region origin ASes announcing only one prefix:                4289
ARIN Region transit ASes present in the Internet Routing Table:    1026
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               310834816
    Equivalent to 18 /8s, 134 /16s and 246 /24s
    Percentage of available ARIN address space announced:          68.6

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:                     42572
    Total RIPE prefixes after maximum aggregation:                27864
Prefixes being announced from the RIPE address blocks:            39409
    Unique aggregates announced from the RIPE address blocks:     26257
RIPE Region origin ASes present in the Internet Routing Table:     8912
RIPE Region origin ASes announcing only one prefix:                4689
RIPE Region transit ASes present in the Internet Routing Table:    1424
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          28
Number of RIPE addresses announced to Internet:               281495940
    Equivalent to 16 /8s, 199 /16s and 73 /24s
    Percentage of available RIPE address space announced:          76.3

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:                   13344
    Total LACNIC prefixes after maximum aggregation:               3998
Prefixes being announced from the LACNIC address blocks:          11398
    Unique aggregates announced from the LACNIC address blocks:    7012
LACNIC Region origin ASes present in the Internet Routing Table:    752
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:                       4.1
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              35443200
    Equivalent to 2 /8s, 28 /16s and 210 /24s
    Percentage of available LACNIC address space announced:        52.8

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:                   2517
    Total AfriNIC prefixes after maximum aggregation:               951
Prefixes being announced from the AfriNIC address blocks:          1749
    Unique aggregates announced from the AfriNIC address blocks:   1126
AfriNIC Region origin ASes present in the Internet Routing Table:   171
AfriNIC Region origin ASes announcing only one prefix:               51
AfriNIC Region transit ASes present in the Internet Routing Table:   30
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              4792320
    Equivalent to 0 /8s, 73 /16s and 32 /24s
    Percentage of available AfriNIC address space announced:       14.3

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     1243       8592         251   CHINANET-BACKBONE
 4755     1051        384          69   Videsh Sanchar Nigam Ltd. Aut
 9583     1030         96         147   Sify Limited
 9498      893        211          67   BHARTI BT INTERNET LTD.
23577      771         34         701   KRNIC
 4766      747       4946         307   Korea Telecom (KIX)
 1221      574       1698         443   Telstra Pty Ltd
17488      556         35          20   Hathway IP Over Cable Interne
 7545      553        126          74   TPG Internet Pty Ltd
17676      503      10935          66   Softbank BB Corp.
18101      479         87          22   Reliance Infocom Ltd Internet
 9443      442        111          74   Primus Telecommunications
 9942      435         81         130   COMindico Australia
 4812      432        757          66   China Telecom (Shanghai)
17849      411         36         126   Telecommunications Technology
 4802      403         86         146   Wantree Development
17557      370         36         178   Pakistan Telecom
17974      361        129          12   PT TELEKOMUNIKASI INDONESIA
 2907      332       1749         309   SINET Japan
 4837      329       3847         145   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1533       6158         994   AT&T WorldNet Services
 2386     1110        586         735   AT&T Data Communications Serv
 4323     1058        820         299   Time Warner Telecom
 6197     1020        638         505   BellSouth Network Solutions, 
18566      983        272           8   Covad Communications 
  174      969       6826         882   Cogent Communications
  701      942       6691         761   UUNET Technologies, Inc. 
 1239      825       2730         581   Sprint 
11492      819         98          12   Cable One 
19262      788       2480         182   Verizon Global Networks 
  721      771      21869         292   DLA Systems Automation Center
20115      766        666         405   Charter Communications 
22773      712       1744          41   Cox Communications, Inc.
  209      710       3731         560   Qwest 
 7011      695        211         431   Citizens Utilities 
  852      596       1091         387   Telus Advanced Communications
19916      567         48          57   OLM LLC 
 6198      550        535         257   BellSouth Network Solutions, 
 5668      546        161          19   CenturyTel Internet Holdings,
  855      538        250          73   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      546       1912         425   UUNET - Commercial IP service
 3301      309       1199         293   TeliaNet Sweden
 3320      296       4992         244   Deutsche Telekom AG
 8220      273        474         263   COLT Telecommunications
 6746      262         93         240   Dynamic Network Technologies,
  680      252       2041         248   DFN-IP service G-WiN
24863      247         43          28   LINKdotNET AS number
 9116      231        134          23   Goldenlines main autonomous s
 3215      230       2104          96   France Telecom Transpac
 8708      228        281         215   Romania Data Systems S.A.
 1257      218       1069         171   SWIPnet Swedish IP Network
30890      210         19          88   SC Kappa Invexim SRL
 3269      208       2357          75   TELECOM ITALIA
 5416      204         13          13   BATELCO-BH
 3246      202        353         192   Song Networks
 8551      199        197          24   Bezeq International
 3300      179        171          97   AUCS Communications Services 
 3352      174       1751          30   Ibernet, Internet Access Netw
 6830      174        695          38   UPC Distribution Services
  786      172       1795         172   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      775       1937         206   UniNet S.A. de C.V. 
11830      484        299          19   Instituto Costarricense de El
11172      385        104          74   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      255         16          13   Telefonica del Sur S.A. 
 7303      227        102          35   Telecom Argentina Stet-France
 6503      217        170          94   AVANTEL, S.A. 
 6147      209        150          20   Telefonica Del Peru 
11556      204        101           6   Cable-Wireless Panama 
10481      181         72           8   Prima S.A. 
21826      156         20          35   INTERCABLE 
23216      146         19          43   RAMtelecom Telecomunicaciones
 7910      144         10          31   ANDINET ON LINE 
19169      139          9          22   Telconet 
19429      138         84          34   E.T.B. 
14522      129         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      289        868         231   The Internet Solution 
 8452      224         60           7   TEDATA
15475      148         84           4   Nile Online
 6713      144        135          11   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      109          6           4   EEPAD TISP TELECOM & INTERNET
 2905       84        175          73   The Internetworking Company o
 2561       57          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
23889       50         13          18   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 
 8524       30          2           6   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      1243         992      CHINANET-BACKBONE
 4755      1051         982      Videsh Sanchar Nigam Ltd. Aut
18566       983         975      Covad Communications 
 9583      1030         883      Sify Limited
 9498       893         826      BHARTI BT INTERNET LTD.
11492       819         807      Cable One 
 4323      1058         759      Time Warner Telecom
22773       712         671      Cox Communications, Inc.
19262       788         606      Verizon Global Networks 
 8151       775         569      UniNet S.A. de C.V. 
17488       556         536      Hathway IP Over Cable Interne
 5668       546         527      CenturyTel Internet Holdings,
 6197      1020         515      BellSouth Network Solutions, 
19916       567         510      OLM LLC 
  721       771         479      DLA Systems Automation Center
 7545       553         479      TPG Internet Pty Ltd
  855       538         465      Canadian Research Network 
11830       484         465      Instituto Costarricense de El
15270       494         460      PaeTec.net -a division of Pae
18101       479         457      Reliance Infocom Ltd Internet

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

Bad AS  Designation  Network              Transit AS  Description
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
192.0.10.0/24         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 
192.172.0.0/19         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      /12:113     
/13:227     /14:405     /15:799     /16:9089    /17:3633    /18:5869    
/19:12759   /20:14415   /21:12876   /22:16327   /23:17841   /24:109930  
/25:621     /26:467     /27:361     /28:72      /29:44      /30:87      
/31:0       /32:23      

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

  ASN   No of nets  Total ann.   Description
18566      966           983      Covad Communications 
 9583      862          1030      Sify Limited
 2386      827          1110      AT&T Data Communications Serv
 7018      823          1533      AT&T WorldNet Services
11492      805           819      Cable One 
 6197      796          1020      BellSouth Network Solutions, 
23577      757           771      KRNIC
 7011      600           695      Citizens Utilities 
19916      562           567      OLM LLC 
 4766      556           747      Korea Telecom (KIX)
 9498      550           893      BHARTI BT INTERNET LTD.
 4755      470          1051      Videsh Sanchar Nigam Ltd. Aut
15270      464           494      PaeTec.net -a division of Pae
  855      435           538      Canadian Research Network 
 5668      420           546      CenturyTel Internet Holdings,
18101      413           479      Reliance Infocom Ltd Internet
 1239      407           825      Sprint 
17849      397           411      Telecommunications Technology
33588      392           415      Bresnan Communications, LLC. 
 6198      388           550      BellSouth Network Solutions, 

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

   4:9         8:61        9:1        12:1650     13:1        15:15     
  16:3        17:3        18:5        20:34       24:831      32:55     
  38:270      40:57       41:50       44:2        47:10       52:4      
  53:1        55:1        56:3        57:25       58:269      59:352    
  60:224      61:969      62:1037     63:1889     64:3203     65:2296   
  66:3134     67:684      68:653      69:1709     70:403      71:114    
  72:1049     74:117      75:49       76:13       80:815      81:782    
  82:652      83:395      84:486      85:759      86:412      87:434    
  88:253      89:670      90:2        91:98       97:1       121:98     
 122:42      123:3       124:490     125:731     128:309     129:219    
 130:131     131:318     132:48      133:9       134:177     135:42     
 136:180     137:113     138:189     139:49      140:529     141:135    
 142:347     143:212     144:255     145:67      146:321     147:141    
 148:370     149:169     150:110     151:118     152:88      153:117    
 154:5       155:246     156:146     157:151     158:166     159:141    
 160:99      161:88      162:225     163:158     164:235     165:237    
 166:243     167:272     168:479     169:123     170:387     171:12     
 172:1       189:30      190:298     192:5724    193:3619    194:2858   
 195:2165    196:921     198:3774    199:3260    200:4574    201:946    
 202:7057    203:7233    204:3950    205:2097    206:2419    207:2904   
 208:2349    209:3569    210:2230    211:876     212:1336    213:1452   
 214:386     215:39      216:4097    217:1158    218:340     219:263    
 220:811     221:385     222:255    

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



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