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 Jan 07 13:07:43 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 08 Jan, 2005

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

BGP routing table entries examined:                              153319
    Prefixes after maximum aggregation:                           89967
    Unique aggregates announced to Internet:                      73706
Total ASes present in the Internet Routing Table:                 18741
Origin-only ASes present in the Internet Routing Table:           16272
Origin ASes announcing only one prefix:                            7627
Transit ASes present in the Internet Routing Table:                2469
Transit-only ASes present in the Internet Routing Table:             78
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      20
Prefixes from unregistered ASNs in the Routing Table:                 7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1362623528
    Equivalent to 81 /8s, 55 /16s and 252 /24s
    Percentage of available address space announced:               36.8
    Percentage of allocated address space announced:               59.4
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       71007

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

Prefixes being announced by APNIC Region ASes:                    30236
    Total APNIC prefixes after maximum aggregation:               14760
Prefixes being announced from the APNIC address blocks:           28293
    Unique aggregates announced from the APNIC address blocks:    14546
APNIC Region origin ASes present in the Internet Routing Table:    2175
APNIC Region origin ASes announcing only one prefix:                643
APNIC Region transit ASes present in the Internet Routing Table:    329
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              171180032
    Equivalent to 10 /8s, 52 /16s and 0 /24s
    Percentage of available APNIC address space announced:         78.1

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
                       23552-24575
APNIC Address Blocks   58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     86049
    Total ARIN prefixes after maximum aggregation:                52107
Prefixes being announced from the ARIN address blocks:            65837
    Unique aggregates announced from the ARIN address blocks:     23938
ARIN Region origin ASes present in the Internet Routing Table:     9789
ARIN Region origin ASes announcing only one prefix:                3533
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:                          16
Number of ARIN addresses announced to Internet:               236672000
    Equivalent to 14 /8s, 27 /16s and 84 /24s
    Percentage of available ARIN address space announced:          70.5

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
                       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,
                       26624-27647,29695-30719, 31744-33791
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     28899
    Total RIPE prefixes after maximum aggregation:                20012
Prefixes being announced from the RIPE address blocks:            25851
    Unique aggregates announced from the RIPE address blocks:     17003
RIPE Region origin ASes present in the Internet Routing Table:     6194
RIPE Region origin ASes announcing only one prefix:                3307
RIPE Region transit ASes present in the Internet Routing Table:    1056
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               183979200
    Equivalent to 10 /8s, 247 /16s and 76 /24s
    Percentage of available RIPE address space announced:          64.5

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
                       2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-34815
RIPE Address Blocks    62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    6814
    Total LACNIC prefixes after maximum aggregation:               2387
Prefixes being announced from the LACNIC address blocks:           6668
    Unique aggregates announced from the LACNIC address blocks:    4044
LACNIC Region origin ASes present in the Internet Routing Table:    412
LACNIC Region origin ASes announcing only one prefix:               121
LACNIC Region transit ASes present in the Internet Routing Table:    77
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              17046016
    Equivalent to 1 /8s, 4 /16s and 26 /24s
    Percentage of available LACNIC address space announced:        50.8

LACNIC AS Blocks       26592-26623, 27648-28671
LACNIC Address Blocks  200/7

Emerging AfriNIC Region Analysis Summary
----------------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1314
    Total AfriNIC prefixes after maximum aggregation:               701
Prefixes being announced from the AfriNIC address blocks:           868
    Unique aggregates announced from the AfriNIC address blocks:    686
AfriNIC Region origin ASes present in the Internet Routing Table:    95
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              2103808
    Equivalent to 0 /8s, 32 /16s and 26 /24s
    Percentage of available AfriNIC address space announced:       12.5

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      876       4610         167   Data Communications Bureau
 1221      787       1184         562   Telstra Pty Ltd
 9583      581         47          29   Satyam Infoway Ltd.,
 4766      561       3413         275   Korea Internet Exchange for "
 4755      433        176          80   Videsh Sanchar Nigam Ltd. Aut
17676      390       5852          60   XTAGE CORPORATION
 9443      362         71          77   Primus Telecommunications
 9929      356        164          41   China Netcom Corp.
 2907      355       1856         328   SINET Japan
  703      320        343         252   UUNET
17557      307         22         150   Pakistan Telecom
10036      294         27         270   C&M Communication Co. Ltd.
 2764      283        256         226   connect.com.au pty ltd
 7474      272        267         202   Optus Communications Pty Ltd
 9800      238        383          76   CHINA UNICOM
 7545      232         86          66   TPG Internet Pty Ltd
 9498      232         81          53   BHARTI BT INTERNET LTD.
 4802      231         28         140   Wantree Development
 4814      226        232           6   China Telecom (Group)
 7563      226         48         158   Korea Internet Infrastructure

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1415       6587         962   AT&T WorldNet Services
  721     1099      21730         306   DLA Systems Automation Center
  701     1050       8327         904   UUNET Technologies, Inc. 
 1239      932       2881         623   Sprint 
 2386      847        523         601   AT&T Data Communications Serv
 4323      828        670         225   Time Warner Telecom
 6197      824        381         369   BellSouth Network Solutions, 
18566      760        208           6   Covad Communications 
  209      655       3439         501   Qwest 
 3356      610      10887         447   Level 3 Communications, LLC 
20115      568        470         302   Charter Communications 
 3561      549       2369         416   Cable & Wireless USA 
  852      527       1126         401   Telus Advanced Communications
 7843      483        730         100   Adelphia Corp. 
 6478      470        814          98   AT&T Worldnet Services 
 6198      450        388         200   BellSouth Network Solutions, 
 7132      449       8251         381   SBC Internet Services
27364      442         44          20   Armstrong Cable Services 
 5668      427         87          18   Century Telephone 
22909      419        907          65   Comcast Cable Corporation 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      623       2023         514   UUNET - Commercial IP service
 3320      292       2992         230   Deutsche Telekom AG
 3301      288       1112         276   TeliaNet Sweden
 8220      279        466         267   COLT Internet - International
21502      272         40           3   NUMERICABLE is a cabled netwo
  680      254       2041         240   DFN-IP service G-WiN
 3246      224        483         220   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 8708      207        119         190   Romania Data Systems S.A.
 1257      205        708         171   SWIPnet Swedish IP Network
 5515      193        842         140   Sonera Solution Autonomous Sy
  786      176       1794         176   The JANET IP Service
 3215      176        998          76   France Telecom Transpac
 6746      169         47         136   Dynamic Network Technologies,
 8866      163         18          21   Bulgarian Telecommunication C
  719      159        322         104   LANLINK autonomous system
 3269      158       1360          69   TELECOM ITALIA
 3300      152        165          77   AUCS Communications Services 
25186      145        138         101   France Telecom Transpac's Tra
 5400      136        216         118   BT Ignite European Backbone

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      355        140          69   ImpSat
 8151      329        473         141   UniNet S.A. de C.V. 
16814      234         14           6   NSS, S.A. 
11172      214         99          54   Servicios Alestra S.A de C.V 
11664      188         19          28   Keytech SA 
 6147      187        100          22   Telefonica Del Peru 
 7303      147         68          20   Telecom Argentina Stet-France
 6505      140         90          96   Global One Communicaoes Ltda 
 6503      124        147          83   AVANTEL, S.A. 
14117      114          7           5   Telefonica del Sur S.A. 
11992      106          9          31   Integrated Systems 
11556       97         48           3   Cable-Wireless Panama 
14420       87          6          42   ANDINATEL S.A. 
11311       86          8          22   Sinectis S.A. 
13999       85         52           9   Mega Cable S.A. de C.V. 
 6535       84          7          25   Chilesat Servicios  Empresari
10481       82         32           7   Prima S.A. 
 4270       81         18           9   Red de Interconexion Universi
 5639       79          8           8   Telecommunications Services o
15311       78         25          37   Telefonica Empresas 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      268        636         226   The Internet Solution 
 5536      114         16           4   Internet Egypt Network
 2018      102        297          98   Tertiary Education Network 
 2905       77        272          70   The Internetworking Company o
20928       76         16           2   Noor Advanced Technologies AS
24835       48         34           7   RAYA Telecom - Egypt
 8452       47         20           5   TEDATA
 6713       34         38           9   Itissalat Al-MAGHRIB
 9129       33          3           2   UUNET Kenya
 5713       27        141          24   Telkom SA Ltd 
12455       27          7           4   Jambonet Autonomous system
 8524       25          1           4   AUCEGYPT Autonomous System
16637       22         10          19   Johnnic e-Ventures 
10798       18          1          12   Standard Bank of South Africa
12258       18          3          12   Vodacom Internet Company 
21280       17          2           3   Swift Global Kenya Ltd.Is an 
 8346       15          7          14   SONATEL-AS Autonomous System
15706       15          4           2   Sudatel Internet Exchange Aut
21491       15          1           3   UTL On-line is RF broadband I
15808       13          1           2   Communication Solutions Ltd i

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

  ASN   No of nets  Net Savings Description
  721      1099         793      DLA Systems Automation Center
18566       760         754      Covad Communications 
 4134       876         709      Data Communications Bureau
 4323       828         603      Time Warner Telecom
 9583       581         552      Satyam Infoway Ltd.,
 6197       824         455      BellSouth Network Solutions, 
27364       442         422      Armstrong Cable Services 
 5668       427         409      Century Telephone 
22773       417         394      Cox Communications, Inc. Atla
 7843       483         383      Adelphia Corp. 
 6478       470         372      AT&T Worldnet Services 
22909       419         354      Comcast Cable Corporation 
 4755       433         353      Videsh Sanchar Nigam Ltd. Aut
 6467       372         341      E.Spire Communications, Inc. 
17676       390         330      XTAGE CORPORATION
 9929       356         315      China Netcom Corp.
 1239       932         309      Sprint 
13609       338         303      Choice One Communications Inc
 4766       561         286      Korea Internet Exchange for "
 6140       355         286      ImpSat

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

Bad AS  Designation  Network              Transit AS  Description
26422   UNALLOCATED   196.46.184.0/22       3741       The Internet Solutio
64512   PRIVATE       199.213.17.0/25      15296       Netera Alliance Inc.
64512   PRIVATE       199.213.17.128/25    15296       Netera Alliance Inc.
64512   PRIVATE       199.216.97.0/28      15296       Netera Alliance Inc.
65002   PRIVATE       208.179.184.0/24     11509       The Pajo Group 
65529   PRIVATE       216.21.199.0/24      14697       VDot.Net 
65529   PRIVATE       216.152.237.0/24     14697       VDot.Net 

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
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.83.16.0/20        5515     Sonera Solution Autonomous Sy
192.83.32.0/19        5515     Sonera Solution Autonomous Sy
192.83.96.0/22        5515     Sonera Solution Autonomous Sy
192.83.100.0/24       5515     Sonera Solution Autonomous Sy
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T WorldNet Services
192.136.79.0/24        719     LANLINK autonomous system
192.172.0.0/19         721     DLA Systems Automation Center
192.172.11.0/24        721     DLA Systems Automation Center
192.200.100.0/24      7018     AT&T WorldNet Services

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:3       /10:7       /11:15      /12:59      
/13:139     /14:313     /15:566     /16:8240    /17:2355    /18:4053    
/19:10054   /20:10639   /21:8207    /22:11372   /23:12909   /24:83467   
/25:252     /26:234     /27:127     /28:63      /29:37      /30:138     
/31:0       /32:51      

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

  ASN   No of nets  Total ann.   Description
18566      745           760      Covad Communications 
 6197      670           824      BellSouth Network Solutions, 
 2386      623           847      AT&T Data Communications Serv
 7018      580          1415      AT&T WorldNet Services
27364      427           442      Armstrong Cable Services 
 9583      405           581      Satyam Infoway Ltd.,
  702      380           623      UUNET - Commercial IP service
 4766      379           561      Korea Internet Exchange for "
 5668      370           427      Century Telephone 
 1239      369           932      Sprint 
 6198      327           450      BellSouth Network Solutions, 
13609      295           338      Choice One Communications Inc
10036      294           294      C&M Communication Co. Ltd.
 6517      289           313      Yipes Communications, Inc. 
 9929      285           356      China Netcom Corp.
 6467      283           372      E.Spire Communications, Inc. 
 4323      273           828      Time Warner Telecom
21502      269           272      NUMERICABLE is a cabled netwo
11456      259           304      Carolina Online, Inc. 
  701      254          1050      UUNET Technologies, Inc. 

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

   4:4         8:10       12:1460     13:1        15:5        16:2      
  17:3        18:4        20:4        24:720      32:77       33:3      
  38:87       40:55       44:3        47:2        52:3        55:2      
  56:3        57:21       59:1        60:12       61:676      62:523    
  63:1854     64:2521     65:2082     66:2491     67:480      68:521    
  69:857      70:52       71:1        72:24       80:529      81:626    
  82:381      83:213      84:80       85:41      128:120     129:166    
 130:91      131:193     132:35      134:144     135:30      136:188    
 137:68      138:159     139:36      140:190     141:108     142:133    
 143:124     144:164     145:41      146:282     147:87      148:263    
 149:128     150:93      151:62      152:115     153:70      154:2      
 155:134     156:61      157:69      158:148     159:162     160:63     
 161:60      162:383     163:85      164:214     165:160     166:126    
 167:224     168:366     169:131     170:313     171:8       192:5652   
 193:3036    194:2232    195:1543    196:602     198:3865    199:3245   
 200:3950    201:43      202:5064    203:5886    204:3564    205:2108   
 206:2299    207:2530    208:2090    209:3052    210:1539    211:732    
 212:1153    213:1259    214:233     215:31      216:3732    217:1080   
 218:173     219:87      220:319     221:97      222:38     

End of report




Discussion Communities


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


Merit Network, Inc.