[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Jan 29 04:06:14 EAT 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 at lists.apnic.net

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

Routing Table Report   04:00 +10GMT Sat 29 Jan, 2005

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

BGP routing table entries examined:                              154984
    Prefixes after maximum aggregation:                           90381
    Unique aggregates announced to Internet:                      74096
Total ASes present in the Internet Routing Table:                 18880
Origin-only ASes present in the Internet Routing Table:           16393
Origin ASes announcing only one prefix:                            7690
Transit ASes present in the Internet Routing Table:                2487
Transit-only ASes present in the Internet Routing Table:             80
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      22
Prefixes from unregistered ASNs in the Routing Table:                 6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             19
Number of addresses announced to Internet:                   1370739756
    Equivalent to 81 /8s, 179 /16s and 212 /24s
    Percentage of available address space announced:               37.0
    Percentage of allocated address space announced:               58.5
    Percentage of available address space allocated:               63.2
Total number of prefixes smaller than registry allocations:       72278

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

Prefixes being announced by APNIC Region ASes:                    30715
    Total APNIC prefixes after maximum aggregation:               14875
Prefixes being announced from the APNIC address blocks:           28751
    Unique aggregates announced from the APNIC address blocks:    14553
APNIC Region origin ASes present in the Internet Routing Table:    2194
APNIC Region origin ASes announcing only one prefix:                649
APNIC Region transit ASes present in the Internet Routing Table:    326
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              172218240
    Equivalent to 10 /8s, 67 /16s and 215 /24s
    Percentage of available APNIC address space announced:         63.9

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
                       23552-24575
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:                     86924
    Total ARIN prefixes after maximum aggregation:                52224
Prefixes being announced from the ARIN address blocks:            66269
    Unique aggregates announced from the ARIN address blocks:     23997
ARIN Region origin ASes present in the Internet Routing Table:     9828
ARIN Region origin ASes announcing only one prefix:                3564
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:               240024576
    Equivalent to 14 /8s, 78 /16s and 124 /24s
    Percentage of available ARIN address space announced:          71.5

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:                     29197
    Total RIPE prefixes after maximum aggregation:                20200
Prefixes being announced from the RIPE address blocks:            26172
    Unique aggregates announced from the RIPE address blocks:     17218
RIPE Region origin ASes present in the Internet Routing Table:     6269
RIPE Region origin ASes announcing only one prefix:                3332
RIPE Region transit ASes present in the Internet Routing Table:    1067
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               187084864
    Equivalent to 11 /8s, 38 /16s and 176 /24s
    Percentage of available RIPE address space announced:          65.6

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:                    6812
    Total LACNIC prefixes after maximum aggregation:               2382
Prefixes being announced from the LACNIC address blocks:           6691
    Unique aggregates announced from the LACNIC address blocks:    4033
LACNIC Region origin ASes present in the Internet Routing Table:    416
LACNIC Region origin ASes announcing only one prefix:               121
LACNIC Region transit ASes present in the Internet Routing Table:    83
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC addresses announced to Internet:              17316608
    Equivalent to 1 /8s, 8 /16s and 59 /24s
    Percentage of available LACNIC address space announced:        51.6

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

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

Prefixes being announced by AfriNIC Region ASes:                   1330
    Total AfriNIC prefixes after maximum aggregation:               700
Prefixes being announced from the AfriNIC address blocks:           873
    Unique aggregates announced from the AfriNIC address blocks:    692
AfriNIC Region origin ASes present in the Internet Routing Table:    96
AfriNIC Region origin ASes announcing only one prefix:               24
AfriNIC Region transit ASes present in the Internet Routing Table:   13
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2107648
    Equivalent to 0 /8s, 32 /16s and 41 /24s
    Percentage of available AfriNIC address space announced:       12.6

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      886       4624         173   Data Communications Bureau
 1221      785       1183         560   Telstra Pty Ltd
 4766      582       3414         279   Korea Internet Exchange for "
 9583      569         48          11   Satyam Infoway Ltd.,
 4755      460        178         101   Videsh Sanchar Nigam Ltd. Aut
17676      393       5900          61   XTAGE CORPORATION
 9443      362         71          77   Primus Telecommunications
 2907      353       1856         326   SINET Japan
 9929      350        164          35   China Netcom Corp.
17557      303         22         149   Pakistan Telecom
10036      294         27         270   C&M Communication Co. Ltd.
 7545      279         86          67   TPG Internet Pty Ltd
 7474      277        296         207   Optus Communications Pty Ltd
 2764      273        254         220   connect.com.au pty ltd
  703      271        340         212   UUNET
 9800      238        383          76   CHINA UNICOM
 4808      235        172         129   CHINANET core WAN North
 9498      234         81          53   BHARTI BT INTERNET LTD.
 4802      231         28         140   Wantree Development
 7563      225         48         159   Korea Internet Infrastructure

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1457       6607         976   AT&T WorldNet Services
  721     1122      21787         314   DLA Systems Automation Center
  701     1063       8335         911   UUNET Technologies, Inc. 
 1239      926       2880         616   Sprint 
 6197      838        378         400   BellSouth Network Solutions, 
 4323      837        672         218   Time Warner Telecom
 2386      813        505         601   AT&T Data Communications Serv
18566      766        208           6   Covad Communications 
  209      664       3404         503   Qwest 
 7015      596        212          22   AT&T Broadband 
 3356      591      10867         436   Level 3 Communications, LLC 
20115      569        474         303   Charter Communications 
 3561      560       2370         415   Cable & Wireless USA 
  852      525       1126         399   Telus Advanced Communications
 6478      501        819          96   AT&T Worldnet Services 
 3602      492        120          94   Sprint Canada, Inc. 
27364      460         44          19   Armstrong Cable Services 
 6198      456        488         200   BellSouth Network Solutions, 
 7132      452       8395         381   SBC Internet Services
22773      436       1085          19   Cox Communications, Inc. Atla

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      619       2023         511   UUNET - Commercial IP service
 3320      291       2992         227   Deutsche Telekom AG
 3301      287       1112         275   TeliaNet Sweden
 8220      275        466         268   COLT Internet - International
  680      253       2041         239   DFN-IP service G-WiN
 3246      225        471         220   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 8708      210        119         191   Romania Data Systems S.A.
 1257      205        708         171   SWIPnet Swedish IP Network
 5515      187        842         135   Sonera Solution Autonomous Sy
 3215      186       1022          79   France Telecom Transpac
  786      176       1794         176   The JANET IP Service
 6746      176         47         140   Dynamic Network Technologies,
 8866      166         19          23   Bulgarian Telecommunication C
 3269      161       1392          71   TELECOM ITALIA
 3300      161        165          81   AUCS Communications Services 
  719      158        322         104   LANLINK autonomous system
 5400      141        219         124   BT Ignite European Backbone
25186      140        122          99   France Telecom Transpac's Tra
 3303      130        577         125   Swisscom Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      357        140          69   ImpSat
 8151      335        489         142   UniNet S.A. de C.V. 
16814      234         14           6   NSS, S.A. 
11172      212         99          54   Servicios Alestra S.A de C.V 
 6147      189        102          20   Telefonica Del Peru 
11664      158         19          24   Keytech SA 
 7303      149         68          22   Telecom Argentina Stet-France
 6505      133         90          90   Global One Communicaoes Ltda 
 6503      116        147          81   AVANTEL, S.A. 
14117      114          7           5   Telefonica del Sur S.A. 
11992      107          9          31   Integrated Systems 
11556       97         48           3   Cable-Wireless Panama 
13999       89         52           9   Mega Cable S.A. de C.V. 
14420       87          6          42   ANDINATEL S.A. 
11311       86          8          22   Sinectis S.A. 
 6535       85          7          23   Chilesat Servicios  Empresari
10481       83         32           7   Prima S.A. 
 4270       81         18           9   Red de Interconexion Universi
 5639       81          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      113         16           4   Internet Egypt Network
 2018      102        297          98   Tertiary Education Network 
20928       84         16           2   Noor Advanced Technologies AS
 2905       77        272          70   The Internetworking Company o
24835       56         34           6   RAYA Telecom - Egypt
 8452       46         20           5   TEDATA
 6713       34         38           9   Itissalat Al-MAGHRIB
 9129       33          3           2   UUNET Kenya
12455       28          7           4   Jambonet Autonomous system
 5713       27        141          24   Telkom SA Ltd 
 8524       23          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       18          2           3   Swift Global Kenya Ltd.Is an 
15706       15          4           2   Sudatel Internet Exchange Aut
21491       15          1           3   UTL On-line is RF broadband I
 8346       14          7          14   SONATEL-AS Autonomous System
15808       13          1           2   Communication Solutions Ltd i

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

  ASN   No of nets  Net Savings Description
  721      1122         808      DLA Systems Automation Center
18566       766         760      Covad Communications 
 4134       886         713      Data Communications Bureau
 4323       837         619      Time Warner Telecom
 7015       596         574      AT&T Broadband 
 9583       569         558      Satyam Infoway Ltd.,
27364       460         441      Armstrong Cable Services 
 6197       838         438      BellSouth Network Solutions, 
22773       436         417      Cox Communications, Inc. Atla
 5668       431         414      Century Telephone 
 6478       501         405      AT&T Worldnet Services 
 3602       492         398      Sprint Canada, Inc. 
 4755       460         359      Videsh Sanchar Nigam Ltd. Aut
22909       423         358      Comcast Cable Corporation 
 6467       366         335      E.Spire Communications, Inc. 
17676       393         332      XTAGE CORPORATION
 9929       350         315      China Netcom Corp.
 1239       926         310      Sprint 
 4766       582         303      Korea Internet Exchange for "
13609       335         300      Choice One Communications Inc

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

Bad AS  Designation  Network              Transit AS  Description
64826   PRIVATE       64.200.250.0/23       7911       Williams Communicati
64513   PRIVATE       149.117.96.0/24        577       Bell Advanced Commun
26422   UNALLOCATED   196.46.184.0/22       3741       The Internet Solutio
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
172.212.0.0/16        1668     GNN Hosting Service 
172.213.0.0/16        1668     GNN Hosting Service 
172.214.0.0/16        1668     GNN Hosting Service 
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       /11:14      /12:61      
/13:143     /14:314     /15:574     /16:8279    /17:2384    /18:4070    
/19:10046   /20:10613   /21:8393    /22:11673   /23:12907   /24:84525   
/25:296     /26:266     /27:128     /28:63      /29:33      /30:127     
/31:0       /32:46      

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

  ASN   No of nets  Total ann.   Description
18566      751           766      Covad Communications 
 6197      683           838      BellSouth Network Solutions, 
 7018      621          1457      AT&T WorldNet Services
 2386      586           813      AT&T Data Communications Serv
 7015      564           596      AT&T Broadband 
27364      445           460      Armstrong Cable Services 
 4766      398           582      Korea Internet Exchange for "
 9583      398           569      Satyam Infoway Ltd.,
  702      377           619      UUNET - Commercial IP service
 5668      371           431      Century Telephone 
 1239      367           926      Sprint 
 6198      328           456      BellSouth Network Solutions, 
10036      294           294      C&M Communication Co. Ltd.
13609      292           335      Choice One Communications Inc
 4323      282           837      Time Warner Telecom
 6517      281           303      Yipes Communications, Inc. 
 6467      277           366      E.Spire Communications, Inc. 
 9929      275           350      China Netcom Corp.
  701      263          1063      UUNET Technologies, Inc. 
11456      263           308      Carolina Online, Inc. 

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

   4:4         8:9        12:1487     13:1        15:6        16:2      
  17:3        18:4        20:4        24:1006     32:68       33:3      
  38:90       40:55       44:3        47:2        52:3        55:2      
  56:3        57:22       59:2        60:12       61:632      62:511    
  63:1836     64:2561     65:2098     66:2587     67:484      68:495    
  69:892      70:54       71:2        72:47       80:557      81:501    
  82:362      83:232      84:101      85:81      128:126     129:167    
 130:89      131:194     132:37      134:144     135:30      136:208    
 137:76      138:181     139:47      140:191     141:102     142:139    
 143:121     144:248     145:45      146:281     147:97      148:262    
 149:161     150:94      151:62      152:111     153:71      154:2      
 155:136     156:70      157:75      158:149     159:163     160:67     
 161:61      162:413     163:84      164:212     165:157     166:127    
 167:223     168:382     169:131     170:316     171:8       192:5646   
 193:3072    194:2252    195:1574    196:602     198:3850    199:3229   
 200:3941    201:43      202:5205    203:5887    204:3596    205:2009   
 206:2315    207:2648    208:2104    209:3060    210:1555    211:767    
 212:1146    213:1270    214:239     215:31      216:3703    217:1088   
 218:187     219:125     220:341     221:79      222:77     

End of report


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