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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Dec 08 13:51:09 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 09 Dec, 2006

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

BGP routing table entries examined:                              205342
    Prefixes after maximum aggregation:                          111720
    Unique aggregates announced to Internet:                     100595
Total ASes present in the Internet Routing Table:                 23878
Origin-only ASes present in the Internet Routing Table:           20804
Origin ASes announcing only one prefix:                           10054
Transit ASes present in the Internet Routing Table:                3074
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:                                      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:                   1644568620
    Equivalent to 98 /8s, 6 /16s and 32 /24s
    Percentage of available address space announced:               44.4
    Percentage of allocated address space announced:               62.9
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:      104160

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

Prefixes being announced by APNIC Region ASes:                    45563
    Total APNIC prefixes after maximum aggregation:               18743
Prefixes being announced from the APNIC address blocks:           43141
    Unique aggregates announced from the APNIC address blocks:    19599
APNIC Region origin ASes present in the Internet Routing Table:    2793
APNIC Region origin ASes announcing only one prefix:                793
APNIC Region transit ASes present in the Internet Routing Table:    416
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              271634400
    Equivalent to 16 /8s, 48 /16s and 207 /24s
    Percentage of available APNIC address space announced:         84.9

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:                    101573
    Total ARIN prefixes after maximum aggregation:                60333
Prefixes being announced from the ARIN address blocks:            74756
    Unique aggregates announced from the ARIN address blocks:     28433
ARIN Region origin ASes present in the Internet Routing Table:    11210
ARIN Region origin ASes announcing only one prefix:                4268
ARIN Region transit ASes present in the Internet Routing Table:    1032
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               311174400
    Equivalent to 18 /8s, 140 /16s and 37 /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:                     42355
    Total RIPE prefixes after maximum aggregation:                27711
Prefixes being announced from the RIPE address blocks:            39176
    Unique aggregates announced from the RIPE address blocks:     26125
RIPE Region origin ASes present in the Internet Routing Table:     8877
RIPE Region origin ASes announcing only one prefix:                4695
RIPE Region transit ASes present in the Internet Routing Table:    1434
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               280016644
    Equivalent to 16 /8s, 176 /16s and 183 /24s
    Percentage of available RIPE address space announced:          75.9

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:                   13354
    Total LACNIC prefixes after maximum aggregation:               3985
Prefixes being announced from the LACNIC address blocks:          11406
    Unique aggregates announced from the LACNIC address blocks:    6970
LACNIC Region origin ASes present in the Internet Routing Table:    750
LACNIC Region origin ASes announcing only one prefix:               249
LACNIC Region transit ASes present in the Internet Routing Table:   132
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              35325440
    Equivalent to 2 /8s, 27 /16s and 6 /24s
    Percentage of available LACNIC address space announced:        52.6

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:                   2496
    Total AfriNIC prefixes after maximum aggregation:               948
Prefixes being announced from the AfriNIC address blocks:          1738
    Unique aggregates announced from the AfriNIC address blocks:   1106
AfriNIC Region origin ASes present in the Internet Routing Table:   170
AfriNIC Region origin ASes announcing only one prefix:               49
AfriNIC Region transit ASes present in the Internet Routing Table:   31
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              4780800
    Equivalent to 0 /8s, 72 /16s and 243 /24s
    Percentage of available AfriNIC address space announced:       14.2

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     1235       8526         249   CHINANET-BACKBONE
 4755     1047        384          69   Videsh Sanchar Nigam Ltd. Aut
 9583     1001         86         278   Sify Limited
 9498      892        212          65   BHARTI BT INTERNET LTD.
23577      775         35         705   KRNIC
 4766      745       4945         306   Korea Telecom (KIX)
 1221      583       1698         447   Telstra Pty Ltd
17488      556         35          20   Hathway IP Over Cable Interne
 7545      551        126          74   TPG Internet Pty Ltd
17676      501      10934          65   Softbank BB Corp.
18101      490         87          23   Reliance Infocom Ltd Internet
 9443      442        111          74   Primus Telecommunications
 9942      437         81         131   COMindico Australia
 4812      430        753          65   China Telecom (Shanghai)
17849      423         36         126   Telecommunications Technology
 4802      409         86         149   Wantree Development
17974      369        129          12   PT TELEKOMUNIKASI INDONESIA
17557      366         31         176   Pakistan Telecom
 2907      332       1749         309   SINET Japan
 4837      327       3844         143   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1553       6186         982   AT&T WorldNet Services
 2386     1108        586         738   AT&T Data Communications Serv
 4323     1052        803         296   Time Warner Telecom
 6197     1020        638         505   BellSouth Network Solutions, 
18566      981        272           8   Covad Communications 
  174      970       6826         883   Cogent Communications
  701      951       6707         767   UUNET Technologies, Inc. 
11492      825         98          11   Cable One 
 1239      823       2728         583   Sprint 
  721      819      21889         296   DLA Systems Automation Center
19262      784       2454         178   Verizon Global Networks 
20115      735        633         416   Charter Communications 
22773      712       1744          41   Cox Communications, Inc.
  209      709       3762         559   Qwest 
 7011      693        211         430   Citizens Utilities 
  852      596       1091         389   Telus Advanced Communications
19916      567         48          57   OLM LLC 
 6198      549        527         256   BellSouth Network Solutions, 
 5668      545        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      546       1928         425   UUNET - Commercial IP service
 3301      309       1199         293   TeliaNet Sweden
 3320      297       4992         245   Deutsche Telekom AG
24863      291         44          26   LINKdotNET AS number
 8220      273        474         263   COLT Telecommunications
 6746      261         92         238   Dynamic Network Technologies,
  680      252       2041         248   DFN-IP service G-WiN
 3215      230       2104          96   France Telecom Transpac
 8708      228        281         215   Romania Data Systems S.A.
 1257      219       1073         172   SWIPnet Swedish IP Network
 9116      216        134          23   Goldenlines main autonomous s
 3269      208       2357          75   TELECOM ITALIA
30890      206         18          86   SC Kappa Invexim SRL
 5416      204         13          13   BATELCO-BH
 3246      202        353         192   Song Networks
 8551      200        198          23   Bezeq International
 6830      183        823          39   UPC Distribution Services
 3300      177        171          95   AUCS Communications Services 
  786      172       1795         172   The JANET IP Service
 3352      172       1751          30   Ibernet, Internet Access Netw

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      777       1940         208   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      254         16          13   Telefonica del Sur S.A. 
 7303      227        102          35   Telecom Argentina Stet-France
 6503      210        170          94   AVANTEL, S.A. 
 6147      207        150          20   Telefonica Del Peru 
11556      204        101           6   Cable-Wireless Panama 
10481      181         72           8   Prima S.A. 
21826      153         20          37   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      290        868         232   The Internet Solution 
 8452      218         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       84        175          73   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       39          6           3   Jambonet Autonomous system
33774       38         12          22   AS Number for Telecom Algeria
23889       37         10          15   MAURITIUS TELECOM
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      1235         986      CHINANET-BACKBONE
 4755      1047         978      Videsh Sanchar Nigam Ltd. Aut
18566       981         973      Covad Communications 
 9498       892         827      BHARTI BT INTERNET LTD.
11492       825         814      Cable One 
 4323      1052         756      Time Warner Telecom
 9583      1001         723      Sify Limited
22773       712         671      Cox Communications, Inc.
19262       784         606      Verizon Global Networks 
 8151       777         569      UniNet S.A. de C.V. 
17488       556         536      Hathway IP Over Cable Interne
 5668       545         526      CenturyTel Internet Holdings,
  721       819         523      DLA Systems Automation Center
 6197      1020         515      BellSouth Network Solutions, 
19916       567         510      OLM LLC 
 7545       551         477      TPG Internet Pty Ltd
18101       490         467      Reliance Infocom Ltd Internet
  855       539         466      Canadian Research Network 
11830       484         465      Instituto Costarricense de El
15270       492         458      PaeTec.net -a division of Pae

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      /12:112     
/13:226     /14:401     /15:797     /16:9099    /17:3643    /18:5850    
/19:12704   /20:14320   /21:12781   /22:16225   /23:17799   /24:109640  
/25:618     /26:459     /27:360     /28:75      /29:45      /30:91      
/31:0       /32:25      

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

  ASN   No of nets  Total ann.   Description
18566      964           981      Covad Communications 
 9583      835          1001      Sify Limited
 7018      831          1553      AT&T WorldNet Services
 2386      825          1108      AT&T Data Communications Serv
11492      811           825      Cable One 
 6197      796          1020      BellSouth Network Solutions, 
23577      761           775      KRNIC
 7011      598           693      Citizens Utilities 
19916      562           567      OLM LLC 
 4766      556           745      Korea Telecom (KIX)
 9498      547           892      BHARTI BT INTERNET LTD.
 4755      469          1047      Videsh Sanchar Nigam Ltd. Aut
15270      462           492      PaeTec.net -a division of Pae
  855      436           539      Canadian Research Network 
18101      422           490      Reliance Infocom Ltd Internet
 5668      419           545      CenturyTel Internet Holdings,
17849      409           423      Telecommunications Technology
 1239      404           823      Sprint 
 6198      388           549      BellSouth Network Solutions, 
33588      387           410      Bresnan Communications, LLC. 

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

   4:9         8:61        9:1        12:1647     13:1        15:15     
  16:3        17:3        18:4        20:39       24:831      25:1      
  32:55       38:267      40:56       41:47       44:2        47:10     
  52:4        53:1        55:1        56:3        57:24       58:269    
  59:348      60:221      61:951      62:1058     63:1884     64:3177   
  65:2287     66:3120     67:680      68:658      69:1708     70:402    
  71:114      72:1023     74:112      75:42       76:15       77:2      
  80:818      81:776      82:641      83:387      84:478      85:728    
  86:419      87:441      88:261      89:651      90:1        91:95     
  97:1       121:77      122:41      123:3       124:474     125:742    
 128:309     129:207     130:128     131:319     132:48      133:9      
 134:177     135:41      136:179     137:114     138:189     139:48     
 140:522     141:135     142:345     143:215     144:255     145:67     
 146:323     147:139     148:367     149:172     150:110     151:118    
 152:82      153:116     154:5       155:262     156:148     157:151    
 158:167     159:139     160:98      161:80      162:218     163:158    
 164:237     165:238     166:244     167:278     168:478     169:123    
 170:382     171:12      172:1       189:27      190:288     192:5745   
 193:3600    194:2838    195:2169    196:912     198:3791    199:3296   
 200:4594    201:936     202:7006    203:7225    204:3959    205:2096   
 206:2420    207:2905    208:2347    209:3564    210:2219    211:855    
 212:1355    213:1461    214:386     215:39      216:4093    217:1150   
 218:333     219:259     220:803     221:378     222:248    

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