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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Sep 08 14:17:47 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 Sep, 2006

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

BGP routing table entries examined:                              197313
    Prefixes after maximum aggregation:                          107623
    Unique aggregates announced to Internet:                      95918
Total ASes present in the Internet Routing Table:                 23078
Origin-only ASes present in the Internet Routing Table:           20103
Origin ASes announcing only one prefix:                            9652
Transit ASes present in the Internet Routing Table:                2975
Transit-only ASes present in the Internet Routing Table:             64
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:                 2
    Unregistered ASNs in the Routing Table:                           2
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1580431436
    Equivalent to 94 /8s, 51 /16s and 120 /24s
    Percentage of available address space announced:               42.6
    Percentage of allocated address space announced:               60.5
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:       98476

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

Prefixes being announced by APNIC Region ASes:                    43293
    Total APNIC prefixes after maximum aggregation:               17399
Prefixes being announced from the APNIC address blocks:           40913
    Unique aggregates announced from the APNIC address blocks:    18468
APNIC Region origin ASes present in the Internet Routing Table:    2696
APNIC Region origin ASes announcing only one prefix:                764
APNIC Region transit ASes present in the Internet Routing Table:    404
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         24
Number of APNIC addresses announced to Internet:              262062176
    Equivalent to 15 /8s, 158 /16s and 192 /24s
    Percentage of available APNIC address space announced:         81.9

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:                     99748
    Total ARIN prefixes after maximum aggregation:                58992
Prefixes being announced from the ARIN address blocks:            73259
    Unique aggregates announced from the ARIN address blocks:     27654
ARIN Region origin ASes present in the Internet Routing Table:    10953
ARIN Region origin ASes announcing only one prefix:                4147
ARIN Region transit ASes present in the Internet Routing Table:    1011
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               296980224
    Equivalent to 17 /8s, 179 /16s and 143 /24s
    Percentage of available ARIN address space announced:          77.0

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:                     39668
    Total RIPE prefixes after maximum aggregation:                26501
Prefixes being announced from the RIPE address blocks:            36571
    Unique aggregates announced from the RIPE address blocks:     24728
RIPE Region origin ASes present in the Internet Routing Table:     8485
RIPE Region origin ASes announcing only one prefix:                4455
RIPE Region transit ASes present in the Internet Routing Table:    1376
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               263694052
    Equivalent to 15 /8s, 183 /16s and 166 /24s
    Percentage of available RIPE address space announced:          71.4

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:                   12328
    Total LACNIC prefixes after maximum aggregation:               3816
Prefixes being announced from the LACNIC address blocks:          10357
    Unique aggregates announced from the LACNIC address blocks:    6073
LACNIC Region origin ASes present in the Internet Routing Table:    720
LACNIC Region origin ASes announcing only one prefix:               240
LACNIC Region transit ASes present in the Internet Routing Table:   127
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              32428544
    Equivalent to 1 /8s, 238 /16s and 210 /24s
    Percentage of available LACNIC address space announced:        48.3

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:                   2274
    Total AfriNIC prefixes after maximum aggregation:               915
Prefixes being announced from the AfriNIC address blocks:          1597
    Unique aggregates announced from the AfriNIC address blocks:   1015
AfriNIC Region origin ASes present in the Internet Routing Table:   160
AfriNIC Region origin ASes announcing only one prefix:               46
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      3.4
    Max AfriNIC Region AS path length visible:                       11
Number of AfriNIC addresses announced to Internet:              4243968
    Equivalent to 0 /8s, 64 /16s and 194 /24s
    Percentage of available AfriNIC address space announced:       12.6

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     1303       8126         238   CHINANET-BACKBONE
 4755      985        255          68   Videsh Sanchar Nigam Ltd. Aut
 9583      952        109          15   Sify Limited
 9498      848        212          71   BHARTI BT INTERNET LTD.
 4766      736       4436         307   Korea Telecom (KIX)
 1221      610       1780         468   Telstra Pty Ltd
 7545      538        124          73   TPG Internet Pty Ltd
17488      529         33          11   Hathway IP Over Cable Interne
17676      498      10933          62   Softbank BB Corp.
 9443      450        111          83   Primus Telecommunications
18101      448         85          18   Reliance Infocom Ltd Internet
17849      424         31         127   Telecommunications Technology
 4802      409         84         149   Wantree Development
 4812      394        732          60   China Telecom (Shanghai)
17974      374        129          12   PT TELEKOMUNIKASI INDONESIA
17557      354         28         172   Pakistan Telecom
 2907      337       1734         312   SINET Japan
 4837      323       3555         138   chinanet IDC center beijing n
10139      323         23           6   Meridian Telekoms
 7474      289        210         224   SingTel Optus Pty Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1483       6275         957   AT&T WorldNet Services
 6197     1030        640         479   BellSouth Network Solutions, 
 4323      995        775         291   Time Warner Telecom
  721      971      21909         305   DLA Systems Automation Center
 2386      966        563         734   AT&T Data Communications Serv
18566      959        272           8   Covad Communications 
  701      946       6774         774   UUNET Technologies, Inc. 
  174      934       5769         877   Cogent Communications
 1239      844       2765         597   Sprint 
20115      742        663         386   Charter Communications 
19262      738       2264         188   Verizon Global Networks 
11492      731         90          14   Cable One 
22773      700       1744          46   Cox Communications, Inc.
  209      692       3646         547   Qwest 
 7011      667        206         420   Citizens Utilities 
  852      587       1068         383   Telus Advanced Communications
19916      565         49          54   OLM LLC 
  855      549        248          73   Canadian Research Network 
 5668      537        145          18   CenturyTel Internet Holdings,
 3602      511        125         104   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      552       1944         434   UUNET - Commercial IP service
 3301      314       1186         299   TeliaNet Sweden
 3320      298       5013         243   Deutsche Telekom AG
 8220      280        471         266   COLT Telecommunications
24863      259         42          14   LINKdotNET AS number
  680      248       2041         244   DFN-IP service G-WiN
 6746      243         90         222   Dynamic Network Technologies,
 3246      231        462         221   Song Networks
 1257      219        740         166   SWIPnet Swedish IP Network
 8708      216        278         203   Romania Data Systems S.A.
 3215      204       1760          98   France Telecom Transpac
 3269      202       2246          73   TELECOM ITALIA
 8551      202        182          27   Bezeq International
30890      199         18          81   SC Kappa Invexim SRL
 6830      194        879          43   UPC Distribution Services
 5416      180         12          11   BATELCO-BH
 8866      175         37          15   Bulgarian Telecommunication C
 3300      171        171          96   AUCS Communications Services 
  786      170       1778         170   The JANET IP Service
 3352      167       1671          31   Ibernet, Internet Access Netw

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      641       1811         225   UniNet S.A. de C.V. 
22047      454        206          11   VTR PUNTO NET S.A. 
11172      372         98          89   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
 6147      276        140          24   Telefonica Del Peru 
 6471      256         74          30   ENTEL CHILE S.A. 
14117      217         13           7   Telefonica del Sur S.A. 
 6503      184        167          84   AVANTEL, S.A. 
 7303      184         86          28   Telecom Argentina Stet-France
10481      181         72           8   Prima S.A. 
21826      140         18          26   INTERCABLE 
 7910      138          9          20   ANDINET ON LINE 
19169      136          9          26   Telconet 
11556      132         96           4   Cable-Wireless Panama 
19429      130         80          39   E.T.B. 
18822      129          8          10   TELEFONICA MANQUEHUE 
14522      117         18           9   SatNet S.A. 
 7738      113        410          20   Telecomunicacoes da Bahia S.A
14259      112         10          15   GTD Internet S.A. 
23216      111         21           9   RAMtelecom Telecomunicaciones

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      287        803         231   The Internet Solution 
 8452      175         60           7   TEDATA
 6713      144        135          11   Itissalat Al-MAGHRIB
15475      141         84           4   Nile Online
 2018      136        298         112   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       79        159          70   The Internetworking Company o
15706       52         12           4   Sudatel Internet Exchange Aut
 5713       36        293          32   Telkom SA Ltd 
33774       32          7          20   AS Number for Telecom Algeria
23889       27          8          11   MAURITIUS TELECOM
16637       25         19          23   Johnnic e-Ventures 
10798       23          1          14   Standard Bank of South Africa
12455       23          6           3   Jambonet Autonomous system
21280       23          4           4   Swift Global Kenya Ltd.Is an 
 8524       22          1           5   AUCEGYPT Autonomous System
21491       22         17           2   UTL On-line is RF broadband I
33766       21          2           1   Nyala Communications Pty Ltd 

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

  ASN   No of nets  Net Savings Description
 4134      1303        1065      CHINANET-BACKBONE
18566       959         951      Covad Communications 
 9583       952         937      Sify Limited
 4755       985         917      Videsh Sanchar Nigam Ltd. Aut
 9498       848         777      BHARTI BT INTERNET LTD.
11492       731         717      Cable One 
 4323       995         704      Time Warner Telecom
  721       971         666      DLA Systems Automation Center
22773       700         654      Cox Communications, Inc.
 6197      1030         551      BellSouth Network Solutions, 
19262       738         550      Verizon Global Networks 
 5668       537         519      CenturyTel Internet Holdings,
17488       529         518      Hathway IP Over Cable Interne
19916       565         511      OLM LLC 
  855       549         476      Canadian Research Network 
 7545       538         465      TPG Internet Pty Ltd
22047       454         443      VTR PUNTO NET S.A. 
17676       498         436      Softbank BB Corp.
15270       468         433      PaeTec.net -a division of Pae
18101       448         430      Reliance Infocom Ltd Internet

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

Bad AS  Designation  Network              Transit AS  Description
65128   PRIVATE       193.110.50.0/24      24652       Juniper Networks, Eu
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
198.18.0.0/15         8895     KACST/ISU Riyadh Autonomous S

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
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      /12:103     
/13:209     /14:381     /15:742     /16:8973    /17:3454    /18:5653    
/19:12209   /20:13804   /21:12101   /22:15301   /23:16565   /24:106487  
/25:418     /26:427     /27:183     /28:64      /29:42      /30:80      
/31:0       /32:46      

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

  ASN   No of nets  Total ann.   Description
18566      942           959      Covad Communications 
 6197      810          1030      BellSouth Network Solutions, 
 9583      782           952      Sify Limited
 7018      777          1483      AT&T WorldNet Services
11492      719           731      Cable One 
 2386      683           966      AT&T Data Communications Serv
 7011      573           667      Citizens Utilities 
19916      559           565      OLM LLC 
 4766      546           736      Korea Telecom (KIX)
 9498      504           848      BHARTI BT INTERNET LTD.
15270      437           468      PaeTec.net -a division of Pae
  855      423           549      Canadian Research Network 
 5668      420           537      CenturyTel Internet Holdings,
 4755      419           985      Videsh Sanchar Nigam Ltd. Aut
17849      412           424      Telecommunications Technology
 1239      406           844      Sprint 
 7066      386           489      Virginia Polytechnic Institut
 6517      383           416      Yipes Communications, Inc. 
18101      382           448      Reliance Infocom Ltd Internet
22773      370           700      Cox Communications, Inc.

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

   4:8         8:46       11:1        12:1615     13:1        15:16     
  16:3        17:3        18:4        20:41       24:821      25:1      
  32:60       38:255      40:55       41:16       44:3        47:6      
  52:4        55:1        56:3        57:25       58:228      59:265    
  60:167      61:911      62:895      63:1883     64:3075     65:2228   
  66:3070     67:647      68:651      69:1614     70:386      71:89     
  72:904      74:77       75:7        80:796      81:695      82:668    
  83:366      84:392      85:628      86:342      87:441      88:176    
  89:442     121:30      122:5       123:1       124:388     125:635    
 128:150     129:206     130:118     131:312     132:37      133:8      
 134:163     135:48      136:178     137:97      138:224     139:49     
 140:519     141:135     142:357     143:192     144:240     145:42     
 146:324     147:136     148:360     149:177     150:113     151:119    
 152:76      153:117     154:5       155:220     156:171     157:177    
 158:165     159:172     160:95      161:85      162:218     163:167    
 164:447     165:223     166:183     167:245     168:484     169:129    
 170:360     171:11      190:203     192:5734    193:3415    194:2725   
 195:2057    196:873     198:3894    199:3312    200:4664    201:927    
 202:6848    203:7154    204:3922    205:2049    206:2424    207:2949   
 208:2296    209:3502    210:2183    211:855     212:1283    213:1451   
 214:369     215:41      216:4053    217:1123    218:339     219:268    
 220:797     221:388     222:245    

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