[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Dec 11 04:06:14 EAT 2004


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 at lists.apnic.net

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

Routing Table Report   04:00 +10GMT Sat 11 Dec, 2004

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

BGP routing table entries examined:                              152879
    Prefixes after maximum aggregation:                           89593
    Unique aggregates announced to Internet:                      73091
Total ASes present in the Internet Routing Table:                 18626
Origin-only ASes present in the Internet Routing Table:           16151
Origin ASes announcing only one prefix:                            7585
Transit ASes present in the Internet Routing Table:                2475
Transit-only ASes present in the Internet Routing Table:             76
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      17
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:             16
Number of addresses announced to Internet:                   1357811304
    Equivalent to 80 /8s, 238 /16s and 142 /24s
    Percentage of available address space announced:               36.6
    Percentage of allocated address space announced:               59.2
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       70601

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

Prefixes being announced by APNIC Region ASes:                    30023
    Total APNIC prefixes after maximum aggregation:               14602
Prefixes being announced from the APNIC address blocks:           28078
    Unique aggregates announced from the APNIC address blocks:    14488
APNIC Region origin ASes present in the Internet Routing Table:    2176
APNIC Region origin ASes announcing only one prefix:                647
APNIC Region transit ASes present in the Internet Routing Table:    332
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              168393472
    Equivalent to 10 /8s, 9 /16s and 123 /24s
    Percentage of available APNIC address space announced:         76.8

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:                     86261
    Total ARIN prefixes after maximum aggregation:                52104
Prefixes being announced from the ARIN address blocks:            66033
    Unique aggregates announced from the ARIN address blocks:     23747
ARIN Region origin ASes present in the Internet Routing Table:     9767
ARIN Region origin ASes announcing only one prefix:                3524
ARIN Region transit ASes present in the Internet Routing Table:     972
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               236478976
    Equivalent to 14 /8s, 24 /16s and 98 /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:                     28565
    Total RIPE prefixes after maximum aggregation:                19796
Prefixes being announced from the RIPE address blocks:            25446
    Unique aggregates announced from the RIPE address blocks:     16691
RIPE Region origin ASes present in the Internet Routing Table:     6109
RIPE Region origin ASes announcing only one prefix:                3274
RIPE Region transit ASes present in the Internet Routing Table:    1045
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          17
Number of RIPE addresses announced to Internet:               181889536
    Equivalent to 10 /8s, 215 /16s and 106 /24s
    Percentage of available RIPE address space announced:          63.8

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:                    6779
    Total LACNIC prefixes after maximum aggregation:               2394
Prefixes being announced from the LACNIC address blocks:           6606
    Unique aggregates announced from the LACNIC address blocks:    4042
LACNIC Region origin ASes present in the Internet Routing Table:    407
LACNIC Region origin ASes announcing only one prefix:               119
LACNIC Region transit ASes present in the Internet Routing Table:    82
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              16878848
    Equivalent to 1 /8s, 1 /16s and 141 /24s
    Percentage of available LACNIC address space announced:        50.3

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

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

Prefixes being announced by AfriNIC Region ASes:                   1243
    Total AfriNIC prefixes after maximum aggregation:               697
Prefixes being announced from the AfriNIC address blocks:           844
    Unique aggregates announced from the AfriNIC address blocks:    676
AfriNIC Region origin ASes present in the Internet Routing Table:    94
AfriNIC Region origin ASes announcing only one prefix:               21
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:                       12
Number of AfriNIC addresses announced to Internet:              2084096
    Equivalent to 0 /8s, 31 /16s and 205 /24s
    Percentage of available AfriNIC address space announced:       12.4

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      863       4413         165   Data Communications Bureau
 1221      796       1184         570   Telstra Pty Ltd
 9583      567         47          37   Satyam Infoway Ltd.,
 4766      548       3409         270   Korea Internet Exchange for "
 4755      415        142          79   Videsh Sanchar Nigam Ltd. Aut
17676      390       5852          60   XTAGE CORPORATION
 9443      356         69          80   Primus Telecommunications
 2907      354       1857         328   SINET Japan
 9929      353        163          39   China Netcom Corp.
  703      322        350         247   UUNET
17557      322         23         158   Pakistan Telecom
 2764      286        272         232   connect.com.au pty ltd
 7474      271        268         201   Optus Communications Pty Ltd
17974      249         62          10   PT TELEKOMUNIKASI INDONESIA
 9800      232        381          71   CHINA UNICOM
 4802      230         28         139   Wantree Development
 9498      227         81          52   BHARTI BT INTERNET LTD.
 7563      226         48         164   Korea Internet Infrastructure
 4780      216        225          26   Digital United Inc.
10036      216         20         198   C&M Communication Co. Ltd.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1429       6618         987   AT&T WorldNet Services
  701     1069       8382         883   UUNET Technologies, Inc. 
  721     1045      21808         297   DLA Systems Automation Center
 1239      931       2883         620   Sprint 
 2386      862        529         613   AT&T Data Communications Serv
 6197      822        384         354   BellSouth Network Solutions, 
 4323      809        670         220   Time Warner Telecom
18566      755        208           6   Covad Communications 
  209      653       3422         508   Qwest 
 3356      644      10930         459   Level 3 Communications, LLC 
20115      592        462         317   Charter Communications 
 3561      546       2369         415   Cable & Wireless USA 
  852      522       1142         404   Telus Advanced Communications
 7843      481        726          92   Adelphia Corp. 
 6478      461        806          96   AT&T Worldnet Services 
 7132      452       8292         384   SBC Internet Services
 6198      447        382         203   BellSouth Network Solutions, 
27364      441         36          19   Armstrong Cable Services 
 5668      422         87          18   Century Telephone 
22909      416        897          60   Comcast Cable Corporation 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      628       2023         519   UUNET - Commercial IP service
 3320      305       2997         242   Deutsche Telekom AG
 3301      279       1098         270   TeliaNet Sweden
 8220      279        464         264   COLT Internet - International
21502      272         40           3   NUMERICABLE is a cabled netwo
  680      251       2025         239   DFN-IP service G-WiN
 3246      224        482         220   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 1257      210        722         175   SWIPnet Swedish IP Network
 8708      201        116         186   Romania Data Systems S.A.
 5515      193        842         140   Sonera Solution Autonomous Sy
  786      176       1794         176   The JANET IP Service
 3215      172        990          75   France Telecom Transpac
 6746      167         46         135   Dynamic Network Technologies,
 8866      164         18          21   Bulgarian Telecommunication C
  719      159        322         104   LANLINK autonomous system
 3269      154       1329          68   TELECOM ITALIA
 3300      154        165          78   AUCS Communications Services 
25186      144        138         101   France Telecom Transpac's Tra
 3303      132        611         128   Swisscom Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      351        139          72   ImpSat
 8151      311        471         137   UniNet S.A. de C.V. 
16814      218         14           6   NSS, S.A. 
11172      215         99          55   Servicios Alestra S.A de C.V 
 6147      190         92          21   Telefonica Del Peru 
 7303      173         66          26   Telecom Argentina Stet-France
11664      171         14          20   Keytech SA 
 6505      138         90          95   Global One Communicaoes Ltda 
 6503      128        148          85   AVANTEL, S.A. 
11992      102          9          31   Integrated Systems 
14117       98          6           4   Telefonica del Sur S.A. 
11556       97         48           3   Cable-Wireless Panama 
11311       86          8          23   Sinectis S.A. 
14420       85          6          41   ANDINATEL S.A. 
 6535       84          7          25   Chilesat Servicios  Empresari
13999       83         52           9   Mega Cable S.A. de C.V. 
10481       82         32           7   Prima S.A. 
 4270       80         18           9   Red de Interconexion Universi
 5639       77          8           8   Telecommunications Services o
15311       77         23          37   Telefonica Empresas 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      269        636         226   The Internet Solution 
 5536      112         16           4   Internet Egypt Network
 2018      102        297          98   Tertiary Education Network 
 2905       75        271          68   The Internetworking Company o
20928       55         16           2   Noor Advanced Technologies AS
24835       42         34           7   RAYA Telecom - Egypt
 6713       34         38           9   Itissalat Al-MAGHRIB
 9129       32          3           2   UUNET Kenya
 5713       27        141          24   Telkom SA Ltd 
 8524       25          1           4   AUCEGYPT Autonomous System
12455       24          4           3   Jambonet 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 
 8452       17         20           5   TEDATA
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       14          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
18566       755         749      Covad Communications 
  721      1045         748      DLA Systems Automation Center
 4134       863         698      Data Communications Bureau
 4323       809         589      Time Warner Telecom
 9583       567         530      Satyam Infoway Ltd.,
 6197       822         468      BellSouth Network Solutions, 
27364       441         422      Armstrong Cable Services 
 5668       422         404      Century Telephone 
 7843       481         389      Adelphia Corp. 
22773       410         388      Cox Communications, Inc. Atla
 6478       461         365      AT&T Worldnet Services 
22909       416         356      Comcast Cable Corporation 
 6467       377         346      E.Spire Communications, Inc. 
 4755       415         336      Videsh Sanchar Nigam Ltd. Aut
17676       390         330      XTAGE CORPORATION
 9929       353         314      China Netcom Corp.
 1239       931         311      Sprint 
13609       328         294      Choice One Communications Inc
 4355       392         293      EarthLink, Inc. 
  376       399         285      Reseau Interordinateurs Scien

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
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 
65000   PRIVATE       217.68.56.0/22       29263       HAAGnet, municipalit

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      
/13:138     /14:313     /15:558     /16:8181    /17:2302    /18:4001    
/19:9977    /20:10557   /21:8138    /22:11262   /23:13017   /24:83421   
/25:267     /26:240     /27:124     /28:60      /29:40      /30:133     
/31:0       /32:47      

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

  ASN   No of nets  Total ann.   Description
18566      740           755      Covad Communications 
 6197      668           822      BellSouth Network Solutions, 
 2386      629           862      AT&T Data Communications Serv
 7018      583          1429      AT&T WorldNet Services
27364      427           441      Armstrong Cable Services 
 9583      397           567      Satyam Infoway Ltd.,
  702      384           628      UUNET - Commercial IP service
 1239      370           931      Sprint 
 4766      368           548      Korea Internet Exchange for "
 5668      365           422      Century Telephone 
 6198      326           447      BellSouth Network Solutions, 
 6467      287           377      E.Spire Communications, Inc. 
13609      286           328      Choice One Communications Inc
 9929      283           353      China Netcom Corp.
 6517      281           304      Yipes Communications, Inc. 
20115      271           592      Charter Communications 
21502      269           272      NUMERICABLE is a cabled netwo
 4323      259           809      Time Warner Telecom
11456      256           301      Carolina Online, Inc. 
  701      250          1069      UUNET Technologies, Inc. 

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

   4:4         8:10       12:1455     13:1        15:5        16:2      
  17:3        18:4        20:5        24:738      32:67       33:3      
  38:86       40:54       44:3        47:2        52:3        55:1      
  56:3        57:23       60:11       61:683      62:512      63:1848   
  64:2511     65:2080     66:2516     67:473      68:523      69:833    
  70:44       72:16       80:525      81:581      82:364      83:212    
  84:69       85:4       128:119     129:163     130:88      131:193    
 132:36      134:190     135:30      136:187     137:71      138:189    
 139:35      140:226     141:110     142:136     143:118     144:165    
 145:40      146:283     147:96      148:262     149:124     150:92     
 151:63      152:121     153:69      154:2       155:132     156:62     
 157:71      158:136     159:162     160:61      161:60      162:379    
 163:83      164:218     165:168     166:125     167:219     168:366    
 169:125     170:314     171:8       192:5669    193:2985    194:2213   
 195:1557    196:585     198:3899    199:3307    200:3937    201:30     
 202:5062    203:5864    204:3576    205:2097    206:2317    207:2587   
 208:2105    209:3073    210:1544    211:677     212:1171    213:1235   
 214:229     215:31      216:3735    217:1070    218:180     219:103    
 220:297     221:79      222:33     

End of report


More information about the afnog mailing list