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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Sep 15 14:12:58 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@lists.apnic.net

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

If you have any comments please contact Philip Smith <pfs@cisco.com>.

Routing Table Report   04:00 +10GMT Sat 16 Sep, 2006

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

BGP routing table entries examined:                              197928
    Prefixes after maximum aggregation:                          107946
    Unique aggregates announced to Internet:                      95928
Total ASes present in the Internet Routing Table:                 23141
Origin-only ASes present in the Internet Routing Table:           20180
Origin ASes announcing only one prefix:                            9686
Transit ASes present in the Internet Routing Table:                2961
Transit-only ASes present in the Internet Routing Table:             66
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:                           1
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1588413004
    Equivalent to 94 /8s, 173 /16s and 66 /24s
    Percentage of available address space announced:               42.9
    Percentage of allocated address space announced:               60.8
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:       99068

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

Prefixes being announced by APNIC Region ASes:                    43365
    Total APNIC prefixes after maximum aggregation:               17398
Prefixes being announced from the APNIC address blocks:           40969
    Unique aggregates announced from the APNIC address blocks:    18335
APNIC Region origin ASes present in the Internet Routing Table:    2695
APNIC Region origin ASes announcing only one prefix:                756
APNIC Region transit ASes present in the Internet Routing Table:    402
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         24
Number of APNIC addresses announced to Internet:              262327904
    Equivalent to 15 /8s, 162 /16s and 206 /24s
    Percentage of available APNIC address space announced:         82.0

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:                    100132
    Total ARIN prefixes after maximum aggregation:                59256
Prefixes being announced from the ARIN address blocks:            73331
    Unique aggregates announced from the ARIN address blocks:     27657
ARIN Region origin ASes present in the Internet Routing Table:    10980
ARIN Region origin ASes announcing only one prefix:                4159
ARIN Region transit ASes present in the Internet Routing Table:    1008
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               298082048
    Equivalent to 17 /8s, 196 /16s and 95 /24s
    Percentage of available ARIN address space announced:          77.2

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:                     39951
    Total RIPE prefixes after maximum aggregation:                26595
Prefixes being announced from the RIPE address blocks:            36913
    Unique aggregates announced from the RIPE address blocks:     24868
RIPE Region origin ASes present in the Internet Routing Table:     8518
RIPE Region origin ASes announcing only one prefix:                4480
RIPE Region transit ASes present in the Internet Routing Table:    1369
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               265855460
    Equivalent to 15 /8s, 216 /16s and 161 /24s
    Percentage of available RIPE address space announced:          72.0

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:                   12141
    Total LACNIC prefixes after maximum aggregation:               3778
Prefixes being announced from the LACNIC address blocks:          10178
    Unique aggregates announced from the LACNIC address blocks:    6089
LACNIC Region origin ASes present in the Internet Routing Table:    721
LACNIC Region origin ASes announcing only one prefix:               243
LACNIC Region transit ASes present in the Internet Routing Table:   125
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              32618752
    Equivalent to 1 /8s, 241 /16s and 185 /24s
    Percentage of available LACNIC address space announced:        48.6

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:                   2338
    Total AfriNIC prefixes after maximum aggregation:               919
Prefixes being announced from the AfriNIC address blocks:          1607
    Unique aggregates announced from the AfriNIC address blocks:   1017
AfriNIC Region origin ASes present in the Internet Routing Table:   161
AfriNIC Region origin ASes announcing only one prefix:               48
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      3.5
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              4244224
    Equivalent to 0 /8s, 64 /16s and 195 /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     1305       8118         239   CHINANET-BACKBONE
 4755      987        255          68   Videsh Sanchar Nigam Ltd. Aut
 9583      953        109          15   Sify Limited
 9498      850        212          71   BHARTI BT INTERNET LTD.
 4766      736       4436         307   Korea Telecom (KIX)
 1221      610       1780         468   Telstra Pty Ltd
 7545      537        124          72   TPG Internet Pty Ltd
17488      530         33          12   Hathway IP Over Cable Interne
17676      497      10933          62   Softbank BB Corp.
 9443      454        111          74   Primus Telecommunications
18101      453         85          18   Reliance Infocom Ltd Internet
17849      424         31         127   Telecommunications Technology
 4802      409         84         149   Wantree Development
 4812      396        741          60   China Telecom (Shanghai)
17974      374        129          12   PT TELEKOMUNIKASI INDONESIA
17557      353         28         168   Pakistan Telecom
 2907      337       1734         312   SINET Japan
10139      327         23           6   Meridian Telekoms
 4837      323       3555         138   chinanet IDC center beijing n
 7474      284        210         221   SingTel Optus Pty Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1494       6291         964   AT&T WorldNet Services
 2386     1029        569         778   AT&T Data Communications Serv
 6197     1029        640         479   BellSouth Network Solutions, 
 4323     1015        776         290   Time Warner Telecom
  721      977      21909         306   DLA Systems Automation Center
  174      972       6794         905   Cogent Communications
18566      961        272           8   Covad Communications 
  701      947       6743         775   UUNET Technologies, Inc. 
 1239      841       2765         591   Sprint 
19262      738       2280         189   Verizon Global Networks 
20115      738        660         384   Charter Communications 
11492      737         90          12   Cable One 
22773      702       1744          45   Cox Communications, Inc.
  209      689       3630         545   Qwest 
 7011      666        207         420   Citizens Utilities 
  852      588       1069         385   Telus Advanced Communications
 6478      577       1257         378   AT&T Worldnet Services 
19916      565         49          54   OLM LLC 
  855      545        248          69   Canadian Research Network 
 5668      537        145          18   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      546       1944         428   UUNET - Commercial IP service
 3301      315       1186         299   TeliaNet Sweden
 3320      297       5013         242   Deutsche Telekom AG
 8220      279        455         265   COLT Telecommunications
24863      268         42          14   LINKdotNET AS number
  680      248       2041         244   DFN-IP service G-WiN
 6746      244         90         223   Dynamic Network Technologies,
 3246      227        469         217   Song Networks
 9116      222        134          23   Goldenlines main autonomous s
 1257      221        740         168   SWIPnet Swedish IP Network
 8708      216        278         203   Romania Data Systems S.A.
 3215      208       1816          95   France Telecom Transpac
 3269      204       2262          74   TELECOM ITALIA
 8551      202        182          27   Bezeq International
30890      200         18          78   SC Kappa Invexim SRL
 6830      198        879          43   UPC Distribution Services
 8866      186         37          15   Bulgarian Telecommunication C
 5416      180         12          11   BATELCO-BH
 3300      177        172         100   AUCS Communications Services 
  786      172       1779         172   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      637       1811         226   UniNet S.A. de C.V. 
11172      372         98          89   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      303        206          11   VTR PUNTO NET S.A. 
 6147      277        142          23   Telefonica Del Peru 
 6471      256         74          30   ENTEL CHILE S.A. 
14117      217         13           7   Telefonica del Sur S.A. 
 7303      187         88          18   Telecom Argentina Stet-France
 6503      184        167          84   AVANTEL, S.A. 
10481      181         72           8   Prima S.A. 
21826      141         18          25   INTERCABLE 
 7910      138          9          20   ANDINET ON LINE 
19169      137          9          22   Telconet 
11556      132         96           4   Cable-Wireless Panama 
19429      132         81          39   E.T.B. 
18822      129          8          10   TELEFONICA MANQUEHUE 
14522      117         18           9   SatNet S.A. 
 7738      114        410          20   Telecomunicacoes da Bahia S.A
14259      112         10          15   GTD Internet S.A. 
23216      112         21           9   RAMtelecom Telecomunicaciones

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      290        803         231   The Internet Solution 
 8452      173         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       80        159          71   The Internetworking Company o
 2561       68          6           2   Egyptian Universities Network
15706       55         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

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

  ASN   No of nets  Net Savings Description
 4134      1305        1066      CHINANET-BACKBONE
18566       961         953      Covad Communications 
 9583       953         938      Sify Limited
 4755       987         919      Videsh Sanchar Nigam Ltd. Aut
 9498       850         779      BHARTI BT INTERNET LTD.
 4323      1015         725      Time Warner Telecom
11492       737         725      Cable One 
  721       977         671      DLA Systems Automation Center
22773       702         657      Cox Communications, Inc.
 6197      1029         550      BellSouth Network Solutions, 
19262       738         549      Verizon Global Networks 
 5668       537         519      CenturyTel Internet Holdings,
17488       530         518      Hathway IP Over Cable Interne
19916       565         511      OLM LLC 
  855       545         476      Canadian Research Network 
 7545       537         465      TPG Internet Pty Ltd
17676       497         435      Softbank BB Corp.
15270       470         435      PaeTec.net -a division of Pae
18101       453         435      Reliance Infocom Ltd Internet
 4766       736         429      Korea Telecom (KIX)

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

Bad AS  Designation  Network              Transit AS  Description
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      /12:104     
/13:212     /14:385     /15:756     /16:9010    /17:3460    /18:5668    
/19:12246   /20:13829   /21:12161   /22:15408   /23:16661   /24:106650  
/25:433     /26:441     /27:190     /28:66      /29:43      /30:87      
/31:0       /32:47      

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

  ASN   No of nets  Total ann.   Description
18566      944           961      Covad Communications 
 6197      808          1029      BellSouth Network Solutions, 
 9583      782           953      Sify Limited
 7018      780          1494      AT&T WorldNet Services
 2386      746          1029      AT&T Data Communications Serv
11492      725           737      Cable One 
 7011      571           666      Citizens Utilities 
19916      559           565      OLM LLC 
 4766      546           736      Korea Telecom (KIX)
 9498      506           850      BHARTI BT INTERNET LTD.
15270      439           470      PaeTec.net -a division of Pae
  855      424           545      Canadian Research Network 
 4755      421           987      Videsh Sanchar Nigam Ltd. Aut
 5668      420           537      CenturyTel Internet Holdings,
17849      412           424      Telecommunications Technology
 1239      408           841      Sprint 
18101      387           453      Reliance Infocom Ltd Internet
 7066      380           478      Virginia Polytechnic Institut
22773      369           702      Cox Communications, Inc.
33588      355           376      Bresnan Communications, LLC. 

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

   4:8         8:47       11:1        12:1635     13:1        15:16     
  16:3        17:3        18:4        20:41       24:822      25:1      
  32:60       38:253      40:55       41:17       44:3        47:6      
  52:4        55:1        56:3        57:25       58:234      59:265    
  60:182      61:898      62:904      63:1893     64:3072     65:2219   
  66:3070     67:655      68:653      69:1618     70:389      71:98     
  72:912      74:78       75:7        80:824      81:694      82:610    
  83:384      84:392      85:647      86:405      87:453      88:187    
  89:459     121:32      122:14      123:1       124:371     125:636    
 128:155     129:228     130:118     131:310     132:37      133:9      
 134:167     135:48      136:178     137:97      138:225     139:64     
 140:523     141:134     142:360     143:192     144:240     145:42     
 146:324     147:136     148:356     149:177     150:113     151:120    
 152:76      153:117     154:5       155:229     156:158     157:178    
 158:155     159:173     160:97      161:85      162:218     163:168    
 164:448     165:226     166:240     167:248     168:487     169:129    
 170:364     171:11      190:207     192:5744    193:3471    194:2731   
 195:2077    196:881     198:3891    199:3323    200:4453    201:924    
 202:6890    203:7131    204:3919    205:2088    206:2427    207:2929   
 208:2292    209:3477    210:2180    211:831     212:1317    213:1444   
 214:374     215:40      216:4036    217:1125    218:345     219:257    
 220:790     221:384     222:242    

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




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