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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Mar 09 13:05:59 2007

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 10 Mar, 2007

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

BGP routing table entries examined:                              214049
    Prefixes after maximum aggregation:                          114981
    Deaggregation factor:                                          1.86
    Unique aggregates announced to Internet:                     104232
Total ASes present in the Internet Routing Table:                 24567
Origin-only ASes present in the Internet Routing Table:           21391
Origin ASes announcing only one prefix:                           10326
Transit ASes present in the Internet Routing Table:                3176
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      32
    Max AS path prepend of ASN (35816)                               23
Prefixes from unregistered ASNs in the Routing Table:                 5
    Unregistered ASNs in the Routing Table:                           6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1685938700
    Equivalent to 100 /8s, 125 /16s and 98 /24s
    Percentage of available address space announced:               45.5
    Percentage of allocated address space announced:               62.5
    Percentage of available address space allocated:               72.8
Total number of prefixes smaller than registry allocations:      110890

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

Prefixes being announced by APNIC Region ASes:                    48817
    Total APNIC prefixes after maximum aggregation:               19649
    APNIC Deaggregation factor:                                    2.48
Prefixes being announced from the APNIC address blocks:           45908
    Unique aggregates announced from the APNIC address blocks:    20798
APNIC Region origin ASes present in the Internet Routing Table:    2888
APNIC Region origin ASes announcing only one prefix:                777
APNIC Region transit ASes present in the Internet Routing Table:    424
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              286620800
    Equivalent to 17 /8s, 21 /16s and 124 /24s
    Percentage of available APNIC address space announced:         71.0

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, 116/6, 120/6, 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:                    104481
    Total ARIN prefixes after maximum aggregation:                61409
    ARIN Deaggregation factor:                                     1.70
Prefixes being announced from the ARIN address blocks:            76505
    Unique aggregates announced from the ARIN address blocks:     29663
ARIN Region origin ASes present in the Internet Routing Table:    11386
ARIN Region origin ASes announcing only one prefix:                4353
ARIN Region transit ASes present in the Internet Routing Table:    1045
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          21
Number of ARIN addresses announced to Internet:               320403072
    Equivalent to 19 /8s, 24 /16s and 246 /24s
    Percentage of available ARIN address space announced:          70.7

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:                     44348
    Total RIPE prefixes after maximum aggregation:                28880
    RIPE Deaggregation factor:                                     1.54
Prefixes being announced from the RIPE address blocks:            41045
    Unique aggregates announced from the RIPE address blocks:     27236
RIPE Region origin ASes present in the Internet Routing Table:     9273
RIPE Region origin ASes announcing only one prefix:                4887
RIPE Region transit ASes present in the Internet Routing Table:    1504
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE addresses announced to Internet:               294072324
    Equivalent to 17 /8s, 135 /16s and 48 /24s
    Percentage of available RIPE address space announced:          79.7

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:                   13836
    Total LACNIC prefixes after maximum aggregation:               4072
    LACNIC Deaggregation factor:                                   3.40
Prefixes being announced from the LACNIC address blocks:          11897
    Unique aggregates announced from the LACNIC address blocks:    6823
LACNIC Region origin ASes present in the Internet Routing Table:    764
LACNIC Region origin ASes announcing only one prefix:               249
LACNIC Region transit ASes present in the Internet Routing Table:   137
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              37337600
    Equivalent to 2 /8s, 57 /16s and 186 /24s
    Percentage of available LACNIC address space announced:        55.6

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:                   2562
    Total AfriNIC prefixes after maximum aggregation:               969
    AfriNIC Deaggregation factor:                                  2.64
Prefixes being announced from the AfriNIC address blocks:          1864
    Unique aggregates announced from the AfriNIC address blocks:   1165
AfriNIC Region origin ASes present in the Internet Routing Table:   182
AfriNIC Region origin ASes announcing only one prefix:               59
AfriNIC Region transit ASes present in the Internet Routing Table:   35
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              5419776
    Equivalent to 0 /8s, 82 /16s and 179 /24s
    Percentage of available AfriNIC address space announced:       16.2

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     1285       9138         280   CHINANET-BACKBONE
 4755     1148        383          77   Videsh Sanchar Nigam Ltd. Aut
 9583     1079         78         365   Sify Limited
 9498      958        468          67   BHARTI BT INTERNET LTD.
23577      776         35         705   Korea Telecom (ATM-MPLS)
 4766      770       4943         311   Korea Telecom (KIX)
17488      612         40          28   Hathway IP Over Cable Interne
 7545      595        142          77   TPG Internet Pty Ltd
 1221      576       1957         450   Telstra Pty Ltd
18101      530        103          23   Reliance Infocom Ltd Internet
17676      503      10935          65   Softbank BB Corp.
 4668      454         68          10   LG-EDS Systems Inc.
 9443      454        111          74   Primus Telecommunications
 4812      442        786          70   China Telecom (Shanghai)
 7474      382        216         261   SingTel Optus Pty Ltd
 4802      360         86         149   Wantree Development
17557      351         34         172   Pakistan Telecom
 4837      341       4388         152   chinanet IDC center beijing n
17974      337        129          14   PT TELEKOMUNIKASI INDONESIA
 2907      336       1733         309   SINET Japan

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1502       6126         986   AT&T WorldNet Services
 4323     1333       1005         353   Time Warner Telecom
 6478     1130        433         189   AT&T Worldnet Services 
 2386     1094        566         738   AT&T Data Communications Serv
 6197     1030        675         498   BellSouth Network Solutions, 
18566      996        288           9   Covad Communications 
11492      992        101          21   Cable One 
  701      941       6697         746   UUNET Technologies, Inc. 
  174      939       6792         863   Cogent Communications
 1239      820       2716         575   Sprint 
20115      803        710         419   Charter Communications 
 7011      774        226         463   Citizens Utilities 
19262      756       2608         179   Verizon Global Networks 
22773      732       1872          41   Cox Communications, Inc.
  209      714       3745         568   Qwest 
  721      627      21772         275   DLA Systems Automation Center
  852      592       1088         378   Telus Advanced Communications
 5668      572        160          16   CenturyTel Internet Holdings,
19916      568         49          54   OLM LLC 
  855      565        250          71   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      539       1879         417   UUNET - Commercial IP service
24863      333         46          27   LINKdotNET AS number
 3301      311       1200         290   TeliaNet Sweden
 3320      299       4994         250   Deutsche Telekom AG
 8220      272        469         262   COLT Telecommunications
 6746      269         95         248   Dynamic Network Technologies,
  680      257       2044         251   DFN-IP service G-WiN
 5416      253         16          12   BATELCO-BH
 3215      236       2216          95   France Telecom Transpac
 8708      235        284         228   Romania Data Systems S.A.
 1257      224       1180         171   SWIPnet Swedish IP Network
 3269      217       2519          75   TELECOM ITALIA
 3246      206        355         196   Song Networks
30890      205         17          95   SC Kappa Invexim SRL
 8551      203        196          28   Bezeq International
20858      198         34           3   EgyNet
 3352      190       1783          33   Ibernet, Internet Access Netw
 3300      185        171          90   AUCS Communications Services 
12479      179        578           6   Uni2 Autonomous System
  786      174       1795         174   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1072       2036         209   UniNet S.A. de C.V. 
11830      482        299          19   Instituto Costarricense de El
11172      349        109          85   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      307        206          11   VTR PUNTO NET S.A. 
 6471      255         74          30   ENTEL CHILE S.A. 
 7303      255        142          23   Telecom Argentina Stet-France
14117      239         16          13   Telefonica del Sur S.A. 
11556      237        128           4   Cable-Wireless Panama 
 6147      230        182          20   Telefonica Del Peru 
 6503      206        171          78   AVANTEL, S.A. 
10481      181         72           8   Prima S.A. 
20299      173         25          23   NEWCOM AMERICAS 
21826      161         29          57   INTERCABLE 
23216      154         19          42   RAMtelecom Telecomunicaciones
 7910      151         10          40   ANDINET ON LINE 
18822      145          9          10   TELEFONICA MANQUEHUE 
10620      137         42          16   TVCABLE BOGOTA 
19169      126          8          38   Telconet 
 6505      116         89          81   Global One Communicaoes Ltda 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      290        868         232   The Internet Solution 
 8452      219         60           6   TEDATA
15475      159         84           4   Nile Online
 6713      143        135          11   Itissalat Al-MAGHRIB
 2018      138        309         113   Tertiary Education Network 
 5536      123          8          15   Internet Egypt Network
33783      110          6           5   EEPAD TISP TELECOM & INTERNET
24835       86         48           6   RAYA Telecom - Egypt
 2905       85        176          74   The Internetworking Company o
 2561       64          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
23889       49         16          13   MAURITIUS TELECOM
 5713       44        294          34   Telkom SA Ltd 
33774       37         10          23   AS Number for Telecom Algeria
16637       33         21          25   Johnnic e-Ventures 
33766       33          2           1   Nyala Communications Pty Ltd 
 8524       30          2           6   AUCEGYPT Autonomous System
21280       27          4           4   Swift Global Kenya Ltd.Is an 
33776       27          2           5   Starcomms Nigeria Limited
12455       26          6           3   Jambonet Autonomous system

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

  ASN   No of nets  Net Savings Description
 4755      1148        1071      Videsh Sanchar Nigam Ltd. Aut
 4134      1285        1005      CHINANET-BACKBONE
18566       996         987      Covad Communications 
 4323      1333         980      Time Warner Telecom
11492       992         971      Cable One 
 6478      1130         941      AT&T Worldnet Services 
 9498       958         891      BHARTI BT INTERNET LTD.
 8151      1072         863      UniNet S.A. de C.V. 
 9583      1079         714      Sify Limited
22773       732         691      Cox Communications, Inc.
17488       612         584      Hathway IP Over Cable Interne
19262       756         577      Verizon Global Networks 
 5668       572         556      CenturyTel Internet Holdings,
 6197      1030         532      BellSouth Network Solutions, 
 7545       595         518      TPG Internet Pty Ltd
19916       568         514      OLM LLC 
18101       530         507      Reliance Infocom Ltd Internet
  855       565         494      Canadian Research Network 
15270       510         476      PaeTec.net -a division of Pae
11830       482         463      Instituto Costarricense de El

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

Bad AS  Designation  Network              Transit AS  Description
65332   PRIVATE       63.166.106.192/27     1803       SPRINT 
65025   PRIVATE       91.135.111.0/24      16116       AS for GO Next.
64515   PRIVATE       195.47.27.0/24        6721       The Terminal Bar: In
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE
22895   UNALLOCATED   216.174.38.0/24      19094       Adelphia Business So

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
7.1.1.0/24            1239     Sprint 
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
180.190.0.0/16       24003     JUBILANT ORGANOSYS LTD., INDI
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 
192.153.136.0/21       721     DLA Systems Automation Center
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       /9:9       /10:12      /11:33      /12:119     
/13:229     /14:438     /15:839     /16:9282    /17:3774    /18:6187    
/19:13268   /20:14896   /21:13423   /22:17371   /23:18727   /24:113409  
/25:745     /26:576     /27:444     /28:68      /29:42      /30:98      
/31:0       /32:41      

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

  ASN   No of nets  Total ann.   Description
 6478     1084          1130      AT&T Worldnet Services 
11492      978           992      Cable One 
18566      978           996      Covad Communications 
 9583      920          1079      Sify Limited
 7018      817          1502      AT&T WorldNet Services
 2386      816          1094      AT&T Data Communications Serv
 6197      799          1030      BellSouth Network Solutions, 
23577      762           776      Korea Telecom (ATM-MPLS)
 7011      675           774      Citizens Utilities 
 9498      628           958      BHARTI BT INTERNET LTD.
 4766      578           770      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4755      549          1148      Videsh Sanchar Nigam Ltd. Aut
 4323      530          1333      Time Warner Telecom
15270      478           510      PaeTec.net -a division of Pae
  855      463           565      Canadian Research Network 
18101      460           530      Reliance Infocom Ltd Internet
 4668      445           454      LG-EDS Systems Inc.
 5668      444           572      CenturyTel Internet Holdings,
17488      434           612      Hathway IP Over Cable Interne

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

   4:9         7:1         8:65        9:1        12:1800     15:17     
  16:3        17:3        18:5        20:35       24:904      25:1      
  32:53       38:286      40:56       41:104      44:2        47:7      
  52:4        55:1        56:3        57:25       58:325      59:349    
  60:220      61:919      62:1041     63:1899     64:3034     65:2315   
  66:3165     67:746      68:652      69:1782     70:473      71:97     
  72:1226     73:1        74:245      75:82       76:10       77:90     
  80:840      81:780      82:662      83:362      84:502      85:749    
  86:440      87:492      88:245      89:824      90:18       91:217    
  97:1       121:141     122:346     123:55      124:768     125:811    
 128:278     129:238     130:125     131:348     132:49      133:10     
 134:188     135:36      136:181     137:86      138:194     139:56     
 140:472     141:142     142:371     143:212     144:270     145:43     
 146:320     147:145     148:381     149:185     150:116     151:118    
 152:94      153:118     154:5       155:246     156:155     157:172    
 158:169     159:150     160:104     161:91      162:232     163:174    
 164:452     165:385     166:239     167:283     168:514     169:120    
 170:389     171:15      172:1       189:239     190:364     192:5733   
 193:3730    194:3017    195:2182    196:917     198:3738    199:3282   
 200:4512    201:919     202:7186    203:7377    204:3960    205:2091   
 206:2445    207:2870    208:2471    209:3593    210:2392    211:936    
 212:1300    213:1415    214:409     215:39      216:4023    217:1157   
 218:351     219:274     220:871     221:371     222:264    

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