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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Mar 30 14:10:04 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 31 Mar, 2007

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

BGP routing table entries examined:                              216896
    Prefixes after maximum aggregation:                          116021
    Deaggregation factor:                                          1.87
    Unique aggregates announced to Internet:                     105580
Total ASes present in the Internet Routing Table:                 24788
Origin-only ASes present in the Internet Routing Table:           21588
Origin ASes announcing only one prefix:                           10438
Transit ASes present in the Internet Routing Table:                3200
Transit-only ASes present in the Internet Routing Table:             71
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      32
    Max AS path prepend of ASN (31269)                               23
Prefixes from unregistered ASNs in the Routing Table:                 4
    Unregistered ASNs in the Routing Table:                           5
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1696136904
    Equivalent to 101 /8s, 24 /16s and 254 /24s
    Percentage of available address space announced:               45.8
    Percentage of allocated address space announced:               62.9
    Percentage of available address space allocated:               72.8
Total number of prefixes smaller than registry allocations:      113042

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

Prefixes being announced by APNIC Region ASes:                    49774
    Total APNIC prefixes after maximum aggregation:               20064
    APNIC Deaggregation factor:                                    2.48
Prefixes being announced from the APNIC address blocks:           46835
    Unique aggregates announced from the APNIC address blocks:    21082
APNIC Region origin ASes present in the Internet Routing Table:    2911
APNIC Region origin ASes announcing only one prefix:                783
APNIC Region transit ASes present in the Internet Routing Table:    432
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              289521472
    Equivalent to 17 /8s, 65 /16s and 191 /24s
    Percentage of available APNIC address space announced:         71.7

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:                    105390
    Total ARIN prefixes after maximum aggregation:                61644
    ARIN Deaggregation factor:                                     1.71
Prefixes being announced from the ARIN address blocks:            77433
    Unique aggregates announced from the ARIN address blocks:     30092
ARIN Region origin ASes present in the Internet Routing Table:    11448
ARIN Region origin ASes announcing only one prefix:                4390
ARIN Region transit ASes present in the Internet Routing Table:    1049
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          21
Number of ARIN addresses announced to Internet:               323997824
    Equivalent to 19 /8s, 79 /16s and 208 /24s
    Percentage of available ARIN address space announced:          71.5

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:                     44789
    Total RIPE prefixes after maximum aggregation:                29241
    RIPE Deaggregation factor:                                     1.53
Prefixes being announced from the RIPE address blocks:            41313
    Unique aggregates announced from the RIPE address blocks:     27670
RIPE Region origin ASes present in the Internet Routing Table:     9394
RIPE Region origin ASes announcing only one prefix:                4949
RIPE Region transit ASes present in the Internet Routing Table:    1516
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE addresses announced to Internet:               296694528
    Equivalent to 17 /8s, 175 /16s and 51 /24s
    Percentage of available RIPE address space announced:          73.7

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, 92/7, 193/8, 194/7,
                       212/7 and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   14458
    Total LACNIC prefixes after maximum aggregation:               4089
    LACNIC Deaggregation factor:                                   3.54
Prefixes being announced from the LACNIC address blocks:          12533
    Unique aggregates announced from the LACNIC address blocks:    7058
LACNIC Region origin ASes present in the Internet Routing Table:    779
LACNIC Region origin ASes announcing only one prefix:               258
LACNIC Region transit ASes present in the Internet Routing Table:   136
Average LACNIC Region AS path length visible:                       4.2
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              38542336
    Equivalent to 2 /8s, 76 /16s and 28 /24s
    Percentage of available LACNIC address space announced:        57.4

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:                   2478
    Total AfriNIC prefixes after maximum aggregation:               977
    AfriNIC Deaggregation factor:                                  2.54
Prefixes being announced from the AfriNIC address blocks:          1883
    Unique aggregates announced from the AfriNIC address blocks:   1147
AfriNIC Region origin ASes present in the Internet Routing Table:   184
AfriNIC Region origin ASes announcing only one prefix:               58
AfriNIC Region transit ASes present in the Internet Routing Table:   37
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              5439488
    Equivalent to 0 /8s, 83 /16s and 0 /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     1286       9438         280   CHINANET-BACKBONE
 4755     1172        383          77   Videsh Sanchar Nigam Ltd. Aut
 9583     1104         78         376   Sify Limited
 9498      966        469          70   BHARTI BT INTERNET LTD.
 4766      784       4943         313   Korea Telecom (KIX)
23577      784         35         709   Korea Telecom (ATM-MPLS)
17488      624         41          31   Hathway IP Over Cable Interne
 7545      602        142          78   TPG Internet Pty Ltd
 1221      580       1973         454   Telstra Pty Ltd
18101      538        116          27   Reliance Infocom Ltd Internet
17676      503      10935          65   Softbank BB Corp.
 4668      502         68          10   LG-EDS Systems Inc.
 9443      454        111          74   Primus Telecommunications
 4812      451        791          72   China Telecom (Shanghai)
 7474      380        215         259   SingTel Optus Pty Ltd
 4802      360         86         149   Wantree Development
17557      360         35         175   Pakistan Telecom
 4837      343       4484         154   chinanet IDC center beijing n
17974      341        129          14   PT TELEKOMUNIKASI INDONESIA
 2907      338       1749         311   SINET Japan

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1493       6125         978   AT&T WorldNet Services
 4323     1268       1020         352   Time Warner Telecom
 2386     1090        558         732   AT&T Data Communications Serv
 6478     1077        331         153   AT&T Worldnet Services 
 6197     1029        676         498   BellSouth Network Solutions, 
11492     1017        102          12   Cable One 
18566      998        288           9   Covad Communications 
  701      952       6660         726   UUNET Technologies, Inc. 
  174      942       6791         860   Cogent Communications
 1239      820       2715         571   Sprint 
20115      809        720         426   Charter Communications 
 7011      780        225         462   Citizens Utilities 
19262      722       2582         162   Verizon Global Networks 
  209      721       3733         572   Qwest 
22773      693       1871          42   Cox Communications, Inc.
  721      620      21756         274   DLA Systems Automation Center
  852      590       1095         377   Telus Advanced Communications
 5668      581        160          17   CenturyTel Internet Holdings,
 7029      567        456          81   Alltel Information Services, 
19916      567         49          59   OLM LLC 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      521       1893         415   UUNET - Commercial IP service
24863      338         46          31   LINKdotNET AS number
 3301      310       1199         289   TeliaNet Sweden
 3320      302       4993         250   Deutsche Telekom AG
 6746      271         95         249   Dynamic Network Technologies,
 8220      268        468         258   COLT Telecommunications
  680      258       2044         251   DFN-IP service G-WiN
 5416      254         16          12   BATELCO-BH
 3215      239       2256          92   France Telecom Transpac
 8708      235        287         228   Romania Data Systems S.A.
 1257      222       1180         168   SWIPnet Swedish IP Network
 3269      215       2583          72   TELECOM ITALIA
 3246      208        356         197   Song Networks
 8551      206        196          30   Bezeq International
30890      206         17          96   SC Kappa Invexim SRL
20858      199         34           4   EgyNet
 3352      195       1795          36   Ibernet, Internet Access Netw
 3300      185        171          90   AUCS Communications Services 
12479      185        578           6   Uni2 Autonomous System
  786      175       1795         175   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1060       2008         209   UniNet S.A. de C.V. 
11830      483        299          19   Instituto Costarricense de El
11172      361        116          66   Servicios Alestra S.A de C.V 
16814      361         22           8   NSS, S.A. 
22047      307        206          11   VTR PUNTO NET S.A. 
 7303      262        142          23   Telecom Argentina Stet-France
 6471      256         74          30   ENTEL CHILE S.A. 
14117      241         17          14   Telefonica del Sur S.A. 
11556      237        128           4   Cable-Wireless Panama 
 6147      230        182          20   Telefonica Del Peru 
 6503      212        171          84   AVANTEL, S.A. 
20299      182         25          25   NEWCOM AMERICAS 
10481      181         72           8   Prima S.A. 
10620      163         48          21   TVCABLE BOGOTA 
21826      156         28          59   INTERCABLE 
23216      156         19          42   RAMtelecom Telecomunicaciones
 7910      154         11          29   ANDINET ON LINE 
19429      148         91          38   E.T.B. 
18822      146          9           6   TELEFONICA MANQUEHUE 
14522      145         22           5   SatNet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      291        868         232   The Internet Solution 
 8452      207         60           6   TEDATA
 6713      143        135          11   Itissalat Al-MAGHRIB
 2018      138        309         113   Tertiary Education Network 
15475      128         84           4   Nile Online
 5536      123          8          15   Internet Egypt Network
33783      111          6           5   EEPAD TISP TELECOM & INTERNET
 2905       85        176          74   The Internetworking Company o
24835       85         48           6   RAYA Telecom - Egypt
15706       55         12           4   Sudatel Internet Exchange Aut
23889       49         16          13   MAURITIUS TELECOM
 5713       44        294          34   Telkom SA Ltd 
33774       42         13          23   AS Number for Telecom Algeria
12455       34          6           3   Jambonet Autonomous system
16637       33         21          25   Johnnic e-Ventures 
33766       33          2           1   Nyala Communications Pty Ltd 
 8524       30          2           6   AUCEGYPT Autonomous System
33776       27          2           5   Starcomms Nigeria Limited
21280       25          4           4   Swift Global Kenya Ltd.Is an 
10798       23          1          14   Standard Bank of South Africa

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

  ASN   No of nets  Net Savings Description
 4755      1172        1095      Videsh Sanchar Nigam Ltd. Aut
 4134      1286        1006      CHINANET-BACKBONE
11492      1017        1005      Cable One 
18566       998         989      Covad Communications 
 6478      1077         924      AT&T Worldnet Services 
 4323      1268         916      Time Warner Telecom
 9498       966         896      BHARTI BT INTERNET LTD.
 8151      1060         851      UniNet S.A. de C.V. 
 9583      1104         728      Sify Limited
22773       693         651      Cox Communications, Inc.
17488       624         593      Hathway IP Over Cable Interne
 5668       581         564      CenturyTel Internet Holdings,
19262       722         560      Verizon Global Networks 
 6197      1029         531      BellSouth Network Solutions, 
 7545       602         524      TPG Internet Pty Ltd
18101       538         511      Reliance Infocom Ltd Internet
19916       567         508      OLM LLC 
  855       566         495      Canadian Research Network 
 4668       502         492      LG-EDS Systems Inc.
 7029       567         486      Alltel Information Services, 

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

Bad AS  Designation  Network              Transit AS  Description
65332   PRIVATE       63.166.106.192/27     1803       SPRINT 
65412   PRIVATE       124.254.58.0/23       7497       Computer Network Inf
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE
65412   PRIVATE       220.113.17.0/24       7497       Computer Network Inf

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      /11:32      /12:120     
/13:230     /14:442     /15:845     /16:9340    /17:3803    /18:6259    
/19:13409   /20:15005   /21:13598   /22:17626   /23:19002   /24:114859  
/25:778     /26:805     /27:491     /28:61      /29:40      /30:71      
/31:0       /32:40      

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

  ASN   No of nets  Total ann.   Description
 6478     1068          1077      AT&T Worldnet Services 
11492     1003          1017      Cable One 
18566      980           998      Covad Communications 
 9583      944          1104      Sify Limited
 7018      815          1493      AT&T WorldNet Services
 2386      812          1090      AT&T Data Communications Serv
 6197      796          1029      BellSouth Network Solutions, 
23577      770           784      Korea Telecom (ATM-MPLS)
 7011      683           780      Citizens Utilities 
 9498      629           966      BHARTI BT INTERNET LTD.
 4766      589           784      Korea Telecom (KIX)
 4755      569          1172      Videsh Sanchar Nigam Ltd. Aut
19916      562           567      OLM LLC 
 4323      527          1268      Time Warner Telecom
 4668      492           502      LG-EDS Systems Inc.
15270      484           516      PaeTec.net -a division of Pae
  855      464           566      Canadian Research Network 
18101      462           538      Reliance Infocom Ltd Internet
 5668      449           581      CenturyTel Internet Holdings,
17488      446           624      Hathway IP Over Cable Interne

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

   4:9         7:1         8:64        9:1        12:1793     15:19     
  16:3        17:3        18:8        20:36       24:934      25:1      
  32:53       38:291      40:56       41:111      44:2        47:4      
  52:4        55:1        56:3        57:25       58:355      59:359    
  60:224      61:905      62:1016     63:1973     64:3098     65:2316   
  66:3191     67:766      68:636      69:1792     70:489      71:110    
  72:1240     73:1        74:320      75:171      76:31       77:111    
  80:824      81:785      82:660      83:376      84:481      85:767    
  86:384      87:465      88:249      89:874      90:19       91:235    
  97:1        98:1       116:11      117:1       118:1       119:1      
 120:1       121:161     122:522     123:63      124:756     125:918    
 128:273     129:224     130:120     131:350     132:51      133:10     
 134:190     135:37      136:180     137:87      138:193     139:56     
 140:482     141:143     142:371     143:212     144:280     145:43     
 146:323     147:148     148:386     149:188     150:115     151:123    
 152:93      153:120     154:5       155:250     156:152     157:179    
 158:161     159:152     160:103     161:90      162:235     163:141    
 164:452     165:400     166:246     167:294     168:500     169:119    
 170:393     171:15      172:1       189:227     190:547     192:5735   
 193:3717    194:3061    195:2204    196:911     198:3735    199:3287   
 200:4607    201:1008    202:7243    203:7410    204:3972    205:2096   
 206:2415    207:2882    208:2599    209:3601    210:2396    211:931    
 212:1279    213:1422    214:410     215:39      216:3964    217:1174   
 218:355     219:298     220:905     221:389     222:272    

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