Merit Network
Can't find what you're looking for? Search the Mail Archives.
  About Merit   Services   Network   Resources & Support   Network Research   News   Events   Home

Discussion Communities: Merit Network Email List Archives

North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Weekly Routing Table Report

  • From: Routing Table Analysis
  • Date: Fri Nov 04 13:08:30 2005

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 05 Nov, 2005

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

BGP routing table entries examined:                              174456
    Prefixes after maximum aggregation:                           98564
    Unique aggregates announced to Internet:                      84241
Total ASes present in the Internet Routing Table:                 20824
Origin-only ASes present in the Internet Routing Table:           18114
Origin ASes announcing only one prefix:                            8589
Transit ASes present in the Internet Routing Table:                2710
Transit-only ASes present in the Internet Routing Table:             75
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      21
Prefixes from unregistered ASNs in the Routing Table:                 3
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1456349792
    Equivalent to 86 /8s, 206 /16s and 34 /24s
    Percentage of available address space announced:               39.3
    Percentage of allocated address space announced:               59.2
    Percentage of available address space allocated:               66.4
Total number of prefixes smaller than registry allocations:       83872

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

Prefixes being announced by APNIC Region ASes:                    36216
    Total APNIC prefixes after maximum aggregation:               15817
Prefixes being announced from the APNIC address blocks:           33991
    Unique aggregates announced from the APNIC address blocks:    16836
APNIC Region origin ASes present in the Internet Routing Table:    2382
APNIC Region origin ASes announcing only one prefix:                692
APNIC Region transit ASes present in the Internet Routing Table:    364
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              204610688
    Equivalent to 12 /8s, 50 /16s and 28 /24s
    Percentage of available APNIC address space announced:         75.9

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, 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:                     92801
    Total ARIN prefixes after maximum aggregation:                55759
Prefixes being announced from the ARIN address blocks:            72330
    Unique aggregates announced from the ARIN address blocks:     27244
ARIN Region origin ASes present in the Internet Routing Table:    10312
ARIN Region origin ASes announcing only one prefix:                3824
ARIN Region transit ASes present in the Internet Routing Table:     958
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               274040064
    Equivalent to 16 /8s, 85 /16s and 133 /24s
    Percentage of available ARIN address space announced:          68.1

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:                     33836
    Total RIPE prefixes after maximum aggregation:                22889
Prefixes being announced from the RIPE address blocks:            30852
    Unique aggregates announced from the RIPE address blocks:     20640
RIPE Region origin ASes present in the Internet Routing Table:     7266
RIPE Region origin ASes announcing only one prefix:                3822
RIPE Region transit ASes present in the Internet Routing Table:    1203
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               222461184
    Equivalent to 13 /8s, 66 /16s and 125 /24s
    Percentage of available RIPE address space announced:          66.3

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:                    9789
    Total LACNIC prefixes after maximum aggregation:               3276
Prefixes being announced from the LACNIC address blocks:           8091
    Unique aggregates announced from the LACNIC address blocks:    4703
LACNIC Region origin ASes present in the Internet Routing Table:    648
LACNIC Region origin ASes announcing only one prefix:               209
LACNIC Region transit ASes present in the Internet Routing Table:   122
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC addresses announced to Internet:              22486272
    Equivalent to 1 /8s, 87 /16s and 29 /24s
    Percentage of available LACNIC address space announced:        33.5

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:                   1807
    Total AfriNIC prefixes after maximum aggregation:               823
Prefixes being announced from the AfriNIC address blocks:          1128
    Unique aggregates announced from the AfriNIC address blocks:    829
AfriNIC Region origin ASes present in the Internet Routing Table:   141
AfriNIC Region origin ASes announcing only one prefix:               42
AfriNIC Region transit ASes present in the Internet Routing Table:   19
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2849536
    Equivalent to 0 /8s, 43 /16s and 123 /24s
    Percentage of available AfriNIC address space announced:        8.5

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     1002       6327         214   CHINANET-BACKBONE
 9583      819         77          12   Sify Limited
 1221      747       1342         516   Telstra Pty Ltd
 4755      746        259          67   Videsh Sanchar Nigam Ltd. Aut
 4766      619       3927         287   Korea Telecom (KIX)
 7545      511        108          71   TPG Internet Pty Ltd
17676      470       6819         100   Softbank BB Corp.
 9443      392         87          78   Primus Telecommunications
 9498      388        211          58   BHARTI BT INTERNET LTD.
17488      366         22          10   Hathway IP Over Cable Interne
 2907      339       1763         316   SINET Japan
 4802      335         73         153   Wantree Development
 7474      332        258         228   SingTel Optus Pty Ltd
17557      332         24         162   Pakistan Telecom
 9929      326        216          46   China Netcom Corp.
18302      296        109         169   SK Global co., Ltd
 9837      275         79         176   Powertel Ltd
17974      274         65          16   PT TELEKOMUNIKASI INDONESIA
18101      267         68          19   Reliance Infocom Ltd Internet
 9800      253        394          66   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1473       6325         968   AT&T WorldNet Services
 4323     1194        706         233   Time Warner Telecom
  721     1071      21938         308   DLA Systems Automation Center
  174     1041       5846         981   Cogent Communications
  701     1004       8154         844   UUNET Technologies, Inc. 
 6197      959        407         498   BellSouth Network Solutions, 
 2386      928        545         692   AT&T Data Communications Serv
18566      870        240           7   Covad Communications 
 1239      845       2849         594   Sprint 
  209      653       3605         517   Qwest 
20115      640        519         336   Charter Communications 
11492      591         81           9   Cable One 
  852      573       1093         381   Telus Advanced Communications
 3602      568        131         109   Sprint Canada, Inc. 
19916      563         49          54   OLM LLC 
  855      562        247          65   Canadian Research Network 
22773      547       1356          28   Cox Communications, Inc.
 3356      530      10638         406   Level 3 Communications, LLC 
19262      529       1541         130   Verizon Global Networks 
 6478      492       1299         275   AT&T Worldnet Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      611       1961         479   UUNET - Commercial IP service
 3301      305       1085         291   TeliaNet Sweden
 3320      286       3231         241   Deutsche Telekom AG
 8220      270        475         265   COLT Telecommunications
  680      244       2040         239   DFN-IP service G-WiN
 8708      238        274         223   Romania Data Systems S.A.
 3246      228        475         221   Song Networks
 6746      199         51         170   Dynamic Network Technologies,
 1257      190        712         168   SWIPnet Swedish IP Network
 5515      182        840         128   Sonera Solution Autonomous Sy
 3269      180       1765          68   TELECOM ITALIA
  786      175       1795         175   The JANET IP Service
 5400      166        317         136   BT Ignite European Backbone
 6830      161        669          33   UPC Distribution Services
 3300      159        170          91   AUCS Communications Services 
 8866      156         37           9   Bulgarian Telecommunication C
25186      148        211         104   France Telecom Transpac's Tra
 3215      144       1237          78   France Telecom Transpac
24863      143         37           6   LINKdotNET AS number
12479      140        322           5   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      386        642         165   UniNet S.A. de C.V. 
16814      296         18           7   NSS, S.A. 
11172      279         88          68   Servicios Alestra S.A de C.V 
11664      201         22          28   Keytech SA 
19632      196         14           5   Metropolis Intercom S.A. 
14117      184         11           6   Telefonica del Sur S.A. 
22047      170        128           7   VTR PUNTO NET S.A. 
 6147      161        118          21   Telefonica Del Peru 
 7303      144         68          16   Telecom Argentina Stet-France
11556      130         64           3   Cable-Wireless Panama 
13999      126         52           9   Mega Cable S.A. de C.V. 
19169      124          8          26   Telconet 
 6505      121         89          85   Global One Communicaoes Ltda 
10481      121         48           8   Prima S.A. 
18822      112          7          13   TELEFONICA MANQUEHUE 
 5639      111         12           9   Telecommunications Services o
21826      111         14          19   INTERCABLE 
 6503      108        147          75   AVANTEL, S.A. 
11311       99          8          10   Sinectis S.A. 
23216       92         23          12   RAMtelecom Telecomunicaciones

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      270        708         228   The Internet Solution 
 8452      136         44           7   TEDATA
 5536      123          8          12   Internet Egypt Network
 2018       93        295          85   Tertiary Education Network 
15475       82         84           4   Nile Online
 2905       78        211          71   The Internetworking Company o
 6713       71         71          10   Itissalat Al-MAGHRIB
20928       61         16           2   Noor Advanced Technologies AS
24835       58         34           6   RAYA Telecom - Egypt
 5713       37        149          33   Telkom SA Ltd 
12455       35          6           3   Jambonet Autonomous system
15706       31          8           3   Sudatel Internet Exchange Aut
33774       31          3          22   AS Number for Telecom Algeria
16637       24         10          21   Johnnic e-Ventures 
 8524       23          1           4   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
21280       21          4           4   Swift Global Kenya Ltd.Is an 
23889       20          5           9   MAURITIUS TELECOM
12258       17          3          11   Vodacom Internet Company 
15804       17          2           1   AS of The Way Out Internet So

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

  ASN   No of nets  Net Savings Description
 4323      1194         961      Time Warner Telecom
18566       870         863      Covad Communications 
 9583       819         807      Sify Limited
 4134      1002         788      CHINANET-BACKBONE
  721      1071         763      DLA Systems Automation Center
 4755       746         679      Videsh Sanchar Nigam Ltd. Aut
11492       591         582      Cable One 
22773       547         519      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       562         497      Canadian Research Network 
 6197       959         461      BellSouth Network Solutions, 
 3602       568         459      Sprint Canada, Inc. 
 5668       472         446      CenturyTel Internet Holdings,
 7545       511         440      TPG Internet Pty Ltd
19262       529         399      Verizon Global Networks 
17676       470         370      Softbank BB Corp.
17488       366         356      Hathway IP Over Cable Interne
 6467       397         349      E.Spire Communications, Inc. 
  812       368         343      Rogers WAVE 
 4766       619         332      Korea Telecom (KIX)

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

Bad AS  Designation  Network              Transit AS  Description
65003   PRIVATE       57.250.244.0/24      13879       SITA-EQUANT 
24413   UNALLOCATED   202.46.32.0/19       17623       China Netcom Corp.
18428   UNALLOCATED   203.91.0.0/24         9505       Taiwan Internet Gate

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       /9:5       /10:8       /11:17      /12:80      
/13:184     /14:339     /15:656     /16:8598    /17:2861    /18:4819    
/19:10958   /20:12025   /21:10139   /22:13383   /23:14532   /24:94929   
/25:326     /26:277     /27:188     /28:32      /29:11      /30:39      
/31:3       /32:29      

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

  ASN   No of nets  Total ann.   Description
18566      854           870      Covad Communications 
 6197      781           959      BellSouth Network Solutions, 
 7018      721          1473      AT&T WorldNet Services
 9583      642           819      Sify Limited
 2386      641           928      AT&T Data Communications Serv
11492      583           591      Cable One 
 4323      571          1194      Time Warner Telecom
19916      557           563      OLM LLC 
  855      434           562      Canadian Research Network 
 4766      425           619      Korea Telecom (KIX)
 7011      397           457      Citizens Utilities 
  702      390           611      UUNET - Commercial IP service
 5668      374           472      CenturyTel Internet Holdings,
 1239      360           845      Sprint 
 6198      352           480      BellSouth Network Solutions, 
 6517      323           349      Yipes Communications, Inc. 
15270      314           341      PaeTec.net -a division of Pae
13609      292           333      Choice One Communications Inc
  701      282          1004      UUNET Technologies, Inc. 
18302      281           296      SK Global co., Ltd

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

   4:3         8:30       12:1615     13:1        15:11       16:3      
  17:3        18:3        20:41       24:695      30:2        32:68     
  38:169      40:54       44:3        47:3        52:4        55:1      
  56:3        57:35       58:97       59:90       60:147      61:787    
  62:784      63:1906     64:2974     65:2128     66:2949     67:681    
  68:655      69:1317     70:221      71:39       72:444      80:662    
  81:596      82:494      83:310      84:330      85:380      86:170    
  87:86      125:30      128:157     129:168     130:96      131:306    
 132:36      133:1       134:147     135:40      136:168     137:70     
 138:170     139:70      140:433     141:142     142:401     143:143    
 144:219     145:34      146:299     147:131     148:269     149:197    
 150:109     151:69      152:111     153:94      154:5       155:144    
 156:79      157:117     158:148     159:178     160:87      161:76     
 162:236     163:147     164:190     165:185     166:155     167:251    
 168:455     169:144     170:310     171:12      190:1       192:5735   
 193:3351    194:2430    195:1593    196:703     198:3914    199:3256   
 200:4253    201:415     202:6179    203:6546    204:3818    205:2043   
 206:2447    207:2889    208:2031    209:3479    210:1753    211:839    
 212:1216    213:1345    214:311     215:41      216:3880    217:1159   
 218:211     219:130     220:510     221:300     222:128    

End of report




Discussion Communities


About Merit | Services | Network | Resources & Support | Network Research
News | Events | Contact | Site Map | Merit Network Home


Merit Network, Inc.