Home page logo
/

nanog logo nanog mailing list archives

Weekly Routing Table Report
From: Routing Table Analysis <cscora () apnic net>
Date: Sat, 18 Feb 2006 04:07:07 +1000 (EST)


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

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

Routing Table Report   04:00 +10GMT Sat 18 Feb, 2006

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

BGP routing table entries examined:                              181818
    Prefixes after maximum aggregation:                          101253
    Unique aggregates announced to Internet:                      88390
Total ASes present in the Internet Routing Table:                 21539
Origin-only ASes present in the Internet Routing Table:           18718
Origin ASes announcing only one prefix:                            8901
Transit ASes present in the Internet Routing Table:                2821
Transit-only ASes present in the Internet Routing Table:             71
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      25
Prefixes from unregistered ASNs in the Routing Table:                 8
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1497414880
    Equivalent to 89 /8s, 64 /16s and 188 /24s
    Percentage of available address space announced:               40.4
    Percentage of allocated address space announced:               59.6
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       88714

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

Prefixes being announced by APNIC Region ASes:                    38138
    Total APNIC prefixes after maximum aggregation:               16214
Prefixes being announced from the APNIC address blocks:           35865
    Unique aggregates announced from the APNIC address blocks:    17515
APNIC Region origin ASes present in the Internet Routing Table:    2471
APNIC Region origin ASes announcing only one prefix:                682
APNIC Region transit ASes present in the Internet Routing Table:    380
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         21
Number of APNIC addresses announced to Internet:              213143264
    Equivalent to 12 /8s, 180 /16s and 78 /24s
    Percentage of available APNIC address space announced:         66.6

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:                     95582
    Total ARIN prefixes after maximum aggregation:                56516
Prefixes being announced from the ARIN address blocks:            74869
    Unique aggregates announced from the ARIN address blocks:     28469
ARIN Region origin ASes present in the Internet Routing Table:    10520
ARIN Region origin ASes announcing only one prefix:                3939
ARIN Region transit ASes present in the Internet Routing Table:     964
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               287630592
    Equivalent to 17 /8s, 36 /16s and 229 /24s
    Percentage of available ARIN address space announced:          71.4

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
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
                       198/7, 204/6, 208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     35923
    Total RIPE prefixes after maximum aggregation:                24185
Prefixes being announced from the RIPE address blocks:            32944
    Unique aggregates announced from the RIPE address blocks:     22224
RIPE Region origin ASes present in the Internet Routing Table:     7661
RIPE Region origin ASes announcing only one prefix:                4015
RIPE Region transit ASes present in the Internet Routing Table:    1289
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               236823424
    Equivalent to 14 /8s, 29 /16s and 163 /24s
    Percentage of available RIPE address space announced:          70.6

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
RIPE Address Blocks    62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   10234
    Total LACNIC prefixes after maximum aggregation:               3455
Prefixes being announced from the LACNIC address blocks:           8426
    Unique aggregates announced from the LACNIC address blocks:    4988
LACNIC Region origin ASes present in the Internet Routing Table:    674
LACNIC Region origin ASes announcing only one prefix:               222
LACNIC Region transit ASes present in the Internet Routing Table:   120
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC addresses announced to Internet:              25451008
    Equivalent to 1 /8s, 132 /16s and 90 /24s
    Percentage of available LACNIC address space announced:        37.9

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:                   1928
    Total AfriNIC prefixes after maximum aggregation:               883
Prefixes being announced from the AfriNIC address blocks:          1293
    Unique aggregates announced from the AfriNIC address blocks:    886
AfriNIC Region origin ASes present in the Internet Routing Table:   147
AfriNIC Region origin ASes announcing only one prefix:               43
AfriNIC Region transit ASes present in the Internet Routing Table:   23
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              3779584
    Equivalent to 0 /8s, 57 /16s and 172 /24s
    Percentage of available AfriNIC address space announced:       11.3

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      996       6480         204   CHINANET-BACKBONE
 9583      852        109          15   Sify Limited
 4766      701       3927         301   Korea Telecom (KIX)
 4755      665        255          61   Videsh Sanchar Nigam Ltd. Aut
 1221      652       1428         468   Telstra Pty Ltd
 9498      535        211          73   BHARTI BT INTERNET LTD.
 7545      517        108          70   TPG Internet Pty Ltd
17488      515         31           7   Hathway IP Over Cable Interne
17676      480       6949         104   Softbank BB Corp.
 9443      411         94          85   Primus Telecommunications
 4802      367         75         159   Wantree Development
 2907      341       1763         318   SINET Japan
 9929      331        218          50   China Netcom Corp.
18101      326         68          26   Reliance Infocom Ltd Internet
17974      321         77          38   PT TELEKOMUNIKASI INDONESIA
17557      316         25         162   Pakistan Telecom
 7474      298        211         230   SingTel Optus Pty Ltd
 4780      281        226          16   Digital United Inc.
 9837      272         78         168   Powertel Ltd
 9800      260        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1467       6263         948   AT&T WorldNet Services
 4323     1208        711         235   Time Warner Telecom
  721      993      21921         302   DLA Systems Automation Center
  174      986       5787         928   Cogent Communications
 6197      985        458         511   BellSouth Network Solutions, 
  701      957       8065         792   UUNET Technologies, Inc. 
18566      909        272           8   Covad Communications 
 2386      888        505         664   AT&T Data Communications Serv
 1239      847       2790         607   Sprint 
19029      701        152         115   New Edge Networks 
  209      693       3607         542   Qwest 
20115      664        582         356   Charter Communications 
 6198      652        449         238   BellSouth Network Solutions, 
22773      632       1480          40   Cox Communications, Inc.
11492      628         81          12   Cable One 
19262      628       1831         156   Verizon Global Networks 
  852      572       1088         380   Telus Advanced Communications
  855      571        244          64   Canadian Research Network 
19916      563         49          54   OLM LLC 
 3602      522        127         106   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      586       1952         462   UUNET - Commercial IP service
 3301      305       1071         290   TeliaNet Sweden
 3352      303       1500          30   Ibernet, Internet Access Netw
 3320      281       3477         235   Deutsche Telekom AG
 8220      274        474         268   COLT Telecommunications
  680      243       2025         240   DFN-IP service G-WiN
 3246      229        487         219   Song Networks
 6746      224         86         196   Dynamic Network Technologies,
 8708      223        274         206   Romania Data Systems S.A.
 1257      204        712         173   SWIPnet Swedish IP Network
 8551      187        181          25   Bezeq International
 3269      186       1925          70   TELECOM ITALIA
 5515      176        839         124   Sonera Solution Autonomous Sy
 3215      174       1438          85   France Telecom Transpac
  786      173       1794         173   The JANET IP Service
 8866      171         37          12   Bulgarian Telecommunication C
24863      169         38           9   LINKdotNET AS number
 3300      166        171          94   AUCS Communications Services 
 5400      166        328         135   BT Ignite European Backbone
 6830      163        733          34   UPC Distribution Services

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      578       1051         219   UniNet S.A. de C.V. 
22047      383        142          10   VTR PUNTO NET S.A. 
11172      303        110          77   Servicios Alestra S.A de C.V 
16814      295         18           7   NSS, S.A. 
14117      184         11           6   Telefonica del Sur S.A. 
 7303      157         74          18   Telecom Argentina Stet-France
 6147      154        126          22   Telefonica Del Peru 
11556      130         64           3   Cable-Wireless Panama 
19169      123          8          30   Telconet 
10481      121         48           8   Prima S.A. 
21826      116         15          19   INTERCABLE 
 6503      114        149          81   AVANTEL, S.A. 
 5639      113         12           9   Telecommunications Services o
 6505      108         88          80   Global One Communicaoes Ltda 
23216      105         23          10   RAMtelecom Telecomunicaciones
18822       99          8          10   TELEFONICA MANQUEHUE 
25620       99          6           3   COTAS LTDA 
 7315       96          6           3   Grupo Rey Moreno 
14522       96         12           8   SatNet S.A. 
11311       95          8          23   Sinectis S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        819         234   The Internet Solution 
 8452      164         60           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
 6713      105        103          12   Itissalat Al-MAGHRIB
15475      103         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
24835       60         50           7   RAYA Telecom - Egypt
20928       58         16           2   Noor Advanced Technologies AS
 5713       39        294          35   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
33774       30          7          21   AS Number for Telecom Algeria
12455       27          6           3   Jambonet Autonomous system
23889       26          8          11   MAURITIUS TELECOM
 8524       24          1           4   AUCEGYPT Autonomous System
16637       23         10          21   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
 8346       21         14          18   SONATEL-AS Autonomous System
15804       17          2           1   AS of The Way Out Internet So
15808       17          2           2   Communication Solutions Ltd i

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

  ASN   No of nets  Net Savings Description
 4323      1208         973      Time Warner Telecom
18566       909         901      Covad Communications 
 9583       852         837      Sify Limited
 4134       996         792      CHINANET-BACKBONE
  721       993         691      DLA Systems Automation Center
11492       628         616      Cable One 
 4755       665         604      Videsh Sanchar Nigam Ltd. Aut
22773       632         592      Cox Communications, Inc.
19029       701         586      New Edge Networks 
19916       563         509      OLM LLC 
17488       515         508      Hathway IP Over Cable Interne
  855       571         507      Canadian Research Network 
 5668       517         492      CenturyTel Internet Holdings,
 6197       985         474      BellSouth Network Solutions, 
19262       628         472      Verizon Global Networks 
 9498       535         462      BHARTI BT INTERNET LTD.
 7545       517         447      TPG Internet Pty Ltd
 7757       462         443      AT&T Broadband 
 3602       522         416      Sprint Canada, Inc. 
 6198       652         414      BellSouth Network Solutions, 

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

Bad AS  Designation  Network              Transit AS  Description
33364   UNALLOCATED   65.111.76.0/24        7018       AT&T WorldNet Servic
65211   PRIVATE       125.64.3.0/24         4134       CHINANET-BACKBONE
65005   PRIVATE       159.153.148.0/22     24989       IX Europe Frankfurt 
65202   PRIVATE       195.47.234.0/24      23649       New Skies Satellites
65505   PRIVATE       206.252.200.192/27    8002       Stealth Communicatio
65518   PRIVATE       211.144.192.0/19     24421       *
64512   PRIVATE       218.108.0.0/16       24139       HANGZHOU DIGITAL TV 
64512   PRIVATE       218.109.0.0/16       24139       HANGZHOU DIGITAL TV 

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
192.43.230.0/24       7575     Australian Academic and Rease
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 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
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        /8:18       /9:9       /10:8       /11:23      /12:87      
/13:200     /14:350     /15:695     /16:8716    /17:3081    /18:5100    
/19:11307   /20:12612   /21:10851   /22:13891   /23:15052   /24:98843   
/25:353     /26:264     /27:201     /28:58      /29:24      /30:32      
/31:3       /32:40      

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

  ASN   No of nets  Total ann.   Description
18566      892           909      Covad Communications 
 6197      789           985      BellSouth Network Solutions, 
 7018      750          1467      AT&T WorldNet Services
 9583      672           852      Sify Limited
19029      623           701      New Edge Networks 
11492      620           628      Cable One 
 2386      617           888      AT&T Data Communications Serv
 4323      584          1208      Time Warner Telecom
19916      557           563      OLM LLC 
 6198      517           652      BellSouth Network Solutions, 
 4766      506           701      Korea Telecom (KIX)
 7011      446           516      Citizens Utilities 
 7757      444           462      AT&T Broadband 
  855      443           571      Canadian Research Network 
 5668      402           517      CenturyTel Internet Holdings,
  702      371           586      UUNET - Commercial IP service
 1239      368           847      Sprint 
15270      348           378      PaeTec.net -a division of Pae
 6517      340           369      Yipes Communications, Inc. 
22773      331           632      Cox Communications, Inc.

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

   4:3         8:40       12:1634     13:1        15:12       16:3      
  17:3        18:4        20:44       24:859      25:1        30:2      
  32:67       38:196      40:54       44:3        47:3        52:4      
  55:1        56:3        57:33       58:119      59:163      60:181    
  61:803      62:762      63:1903     64:3003     65:2240     66:3053   
  67:594      68:675      69:1433     70:310      71:50       72:618    
  73:23       74:6        80:750      81:584      82:516      83:370    
  84:347      85:444      86:312      87:169      88:22       89:31     
 124:19      125:267     128:152     129:174     130:106     131:313    
 132:32      133:7       134:146     135:47      136:168     137:60     
 138:191     139:87      140:475     141:133     142:413     143:144    
 144:223     145:38      146:304     147:133     148:327     149:185    
 150:113     151:75      152:61      153:103     154:6       155:184    
 156:96      157:123     158:158     159:180     160:87      161:68     
 162:220     163:143     164:167     165:201     166:147     167:235    
 168:470     169:140     170:321     171:12      172:1       190:30     
 192:5745    193:3392    194:2511    195:1774    196:762     198:3895   
 199:3240    200:4169    201:603     202:6425    203:6754    204:3885   
 205:2092    206:2410    207:2911    208:1992    209:3759    210:1944   
 211:823     212:1271    213:1474    214:332     215:41      216:4005   
 217:1172    218:239     219:145     220:642     221:346     222:154    


End of report


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]