[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Jul 17 04:05:41 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 17 Jul, 2004

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

BGP routing table entries examined:                              142439
    Prefixes after maximum aggregation:                           85533
    Unique aggregates announced to Internet:                      68001
Total ASes present in the Internet Routing Table:                 17594
Origin-only ASes present in the Internet Routing Table:           15254
Origin ASes announcing only one prefix:                            7148
Transit ASes present in the Internet Routing Table:                2340
Transit-only ASes present in the Internet Routing Table:             70
Average AS path length visible in the Internet Routing Table:       4.8
    Max AS path length visible:                                      26
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:             20
Number of addresses announced to Internet:                   1305064604
    Equivalent to 77 /8s, 201 /16s and 180 /24s
    Percentage of available address space announced:               35.2
    Percentage of allocated address space announced:               57.8
    Percentage of available address space allocated:               60.9
Total number of prefixes smaller than registry allocations:       65451

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

Prefixes being announced by APNIC Region ASes:                    27295
    Total APNIC prefixes after maximum aggregation:               13989
Prefixes being announced from the APNIC address blocks:           25516
    Unique aggregates announced from the APNIC address blocks:    13954
APNIC Region origin ASes present in the Internet Routing Table:    2065
APNIC Region origin ASes announcing only one prefix:                622
APNIC Region transit ASes present in the Internet Routing Table:    331
Average APNIC Region AS path length visible:                        4.9
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              153246656
    Equivalent to 9 /8s, 34 /16s and 91 /24s
    Percentage of available APNIC address space announced:         69.9

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:                     81443
    Total ARIN prefixes after maximum aggregation:                50032
Prefixes being announced from the ARIN address blocks:            63209
    Unique aggregates announced from the ARIN address blocks:     21963
ARIN Region origin ASes present in the Internet Routing Table:     9321
ARIN Region origin ASes announcing only one prefix:                3339
ARIN Region transit ASes present in the Internet Routing Table:     914
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               227454496
    Equivalent to 13 /8s, 142 /16s and 174 /24s
    Percentage of available ARIN address space announced:          75.3

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, 70/8, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     26333
    Total RIPE prefixes after maximum aggregation:                18587
Prefixes being announced from the RIPE address blocks:            23122
    Unique aggregates announced from the RIPE address blocks:     14755
RIPE Region origin ASes present in the Internet Routing Table:     5665
RIPE Region origin ASes announcing only one prefix:                3055
RIPE Region transit ASes present in the Internet Routing Table:     980
Average RIPE Region AS path length visible:                         5.4
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               169022912
    Equivalent to 10 /8s, 19 /16s and 21 /24s
    Percentage of available RIPE address space announced:          59.3

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:                    6172
    Total LACNIC prefixes after maximum aggregation:               2244
Prefixes being announced from the LACNIC address blocks:           5843
    Unique aggregates announced from the LACNIC address blocks:    3580
LACNIC Region origin ASes present in the Internet Routing Table:    381
LACNIC Region origin ASes announcing only one prefix:               110
LACNIC Region transit ASes present in the Internet Routing Table:    73
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC addresses announced to Internet:              15305728
    Equivalent to 0 /8s, 233 /16s and 140 /24s
    Percentage of available LACNIC address space announced:        45.6

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

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

Prefixes being announced by AfriNIC Region ASes:                   1193
    Total AfriNIC prefixes after maximum aggregation:               681
Prefixes being announced from the AfriNIC address blocks:           811
    Unique aggregates announced from the AfriNIC address blocks:    640
AfriNIC Region origin ASes present in the Internet Routing Table:    92
AfriNIC Region origin ASes announcing only one prefix:               22
AfriNIC Region transit ASes present in the Internet Routing Table:   13
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              1901568
    Equivalent to 0 /8s, 29 /16s and 4 /24s
    Percentage of available AfriNIC address space announced:       11.3

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221      821       1057         591   Telstra Pty Ltd
 4134      808       4078         148   Data Communications Bureau
 4766      498       2895         263   Korea Internet Exchange for "
 9583      492         40         106   Satyam Infoway Ltd.,
 4755      402        134          58   Videsh Sanchar Nigam Ltd. Aut
 9443      353         69          78   Primus Telecommunications
 2907      351       1840         325   SINET Japan
17676      341       5084          33   XTAGE CORPORATION
 9929      327        157          32   China Netcom Corp.
  703      320        343         249   UUNET
17557      320         22         164   Pakistan Telecom
 2764      289        258         236   connect.com.au pty ltd
 7474      265        269         205   Optus Communications Pty Ltd
 9942      230         71         128   COMindico Australia
 4802      226         25         141   Wantree Development
 9800      225        369          62   CHINA UNICOM
 9498      220         48          50   BHARTI BT INTERNET LTD.
17633      202         54           8   ASN for Shandong Provincial N
10036      198         18         179   C&M Communication Co. Ltd.
 4837      191       2019         105   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1422       6877         990   AT&T 
  701     1299       8442         930   UUNET Technologies, Inc. 
 6347      963        396         102   SAVVIS Communications Corpora
 1239      939       2889         631   Sprint 
 3356      893      10932         674   Level 3 Communications, LLC 
 4323      740        570         209   Time Warner Communications, I
18566      726        192           8   Covad Communications 
 6197      717        527         281   BellSouth Network Solutions, 
  209      610       3435         499   Qwest 
20115      566        376         291   Charter Communications 
 7843      515        669         130   Adelphia Corp. 
 6198      512        396         214   BellSouth Network Solutions, 
  852      510       1142         398   Telus Advanced Communications
 7132      478       7889         362   Southwestern Bell Internet Se
  721      474      15394         339   DLA Systems Automation Center
 2386      407        533         227   AT&T Data Communications Serv
22909      399        828          23   Comcast Cable Corporation 
 4355      391        323         101   EarthLink, Inc. 
  705      388        128         264   UUNET Technologies, Inc. 
  376      385        359         112   Reseau Interordinateurs Scien

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      650       2039         542   UUNET - Commercial IP service
 3320      299       2463         239   Deutsche Telekom AG
 3301      282       1098         271   TeliaNet Sweden
 8220      277        433         264   COLT Internet - International
 1257      251        747         186   SWIPnet Swedish IP Network
  680      244       2025         239   DFN-IP service G-WiN
13083      216         51           8   Mannesmann Datenverarbeitung 
 3246      213        479         210   Song Networks
 5515      200        842         146   Sonera Solution Autonomous Sy
 8708      191        112         177   Romania Data Systems S.A.
 3215      182        895          70   France Telecom Transpac
25186      172        156         114   France Telecom Transpac's Tra
  786      171       1778         171   The JANET IP Service
 6746      158         29         128   Dynamic Network Technologies,
  719      150        288         102   LANLINK autonomous system
 5400      145        207         120   BT Ignite European Backbone
 3269      134       1099          64   TELECOM ITALIA
 3303      130        609         129   Swisscom Ltd
 8866      130         14          11   Bulgarian Telecommunication C
12302      128         18          32   MobiFon S.A.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
11172      354         96          56   Servicios Alestra S.A de C.V 
 6140      334        140          65   ImpSat
 8151      276        389         128   UniNet S.A. de C.V. 
16814      203         13           7   NSS, S.A. 
 6147      186         86          20   Telefonica Del Peru 
 6505      134         90          92   Global One Communicaoes Ltda 
 6503      129        202          87   AVANTEL, S.A. 
 7303      118         54          17   Telecom Argentina Stet-France
11992       91          9          29   Integrated Systems 
11556       87         57          24   Cable-Wireless Panama 
 6535       81          5          16   Chilesat Servicios  Empresari
14420       79          5          29   ANDINATEL S.A. 
15311       75         19          37   Telefonica Empresas 
11311       73          7          18   Sinectis S.A. 
14535       72          6           5   Techtel S.A. 
 5639       71          8           8   Telecommunications Services o
 4270       70         18           9   Red de Interconexion Universi
14117       69          5           4   Telefonica del Sur S.A. 
10292       67          6          26   TELECOMMUNICATIONS OF JAMAICA
11340       67          5          36   Red Universitaria Nacional 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      252        632         219   The Internet Solution 
 5536      111         16           4   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       91        276          80   The Internetworking Company o
11845       39          9          11   Data Pro Business Online 
20928       35         16           1   Noor Advanced Technologies AS
24835       31         18           6   RAYA Telecom - Egypt
16637       29          9          23   Johnnic e-Ventures 
 6713       26         38           9   Itissalat Al-MAGHRIB
 9129       26          3           4   UUNET Kenya
 5713       25        125          23   Telkom SA Ltd 
 8524       25          2           4   AUCEGYPT Autonomous System
14988       25         16           1   Botswana Telecommunications C
12455       23          4           2   Jambonet Autonomous system
10798       18          1          12   Standard Bank of South Africa
15706       17          4           4   Sudatel Internet Exchange Aut
12258       15          3          10   Vodacom Internet Company 
 8346       13          6          12   SONATEL-AS Autonomous System
17148       13          1           7   First National Bank 
 2609       12         26           4   Tunisia BackBone AS

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

  ASN   No of nets  Net Savings Description
 6347       963         861      SAVVIS Communications Corpora
18566       726         718      Covad Communications 
 4134       808         660      Data Communications Bureau
 4323       740         531      Time Warner Communications, I
 6197       717         436      BellSouth Network Solutions, 
 9583       492         386      Satyam Infoway Ltd.,
 7843       515         385      Adelphia Corp. 
22909       399         376      Comcast Cable Corporation 
  701      1299         369      UUNET Technologies, Inc. 
 5668       381         363      Century Telephone 
27364       379         359      Armstrong Cable Services 
 4755       402         344      Videsh Sanchar Nigam Ltd. Aut
 6467       366         334      E.Spire Communications, Inc. 
22773       383         327      Cox Communications, Inc. Atla
 1239       939         308      Sprint 
17676       341         308      XTAGE CORPORATION
 6198       512         298      BellSouth Network Solutions, 
11172       354         298      Servicios Alestra S.A de C.V 
 9929       327         295      China Netcom Corp.
 4355       391         290      EarthLink, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
18416   UNALLOCATED   61.56.96.0/24         9919       New Century InfoComm
18416   UNALLOCATED   61.56.96.0/20         9919       New Century InfoComm
18416   UNALLOCATED   61.56.97.0/24         9919       New Century InfoComm
18416   UNALLOCATED   61.56.98.0/24         9919       New Century InfoComm
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
18412   UNALLOCATED   211.77.0.0/19         9674       Far EastTone Telecom
63330   RESERVED      213.8.224.0/23        5486       Euronet Digital Comm
63330   RESERVED      213.8.226.0/23        5486       Euronet Digital Comm

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
156.154.16.0/22       7786     Lockheed Martin IMS 
158.0.0.0/13           721     DLA Systems Automation Center
164.234.0.0/18         721     DLA Systems Automation Center
164.234.0.0/16         721     DLA Systems Automation Center
192.43.230.0/24       4738     South Australian Academic Res
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 
192.136.79.0/24        719     LANLINK autonomous system
192.145.251.0/24     17832     National Computeriztion Agenc
192.172.0.0/19         721     DLA Systems Automation Center
192.172.11.0/24        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        /8:19       /9:3       /10:6       /11:15      /12:61      
/13:127     /14:302     /15:528     /16:7898    /17:2113    /18:3690    
/19:9553    /20:10041   /21:7377    /22:10326   /23:11882   /24:77846   
/25:222     /26:202     /27:108     /28:28      /29:15      /30:67      
/31:0       /32:10      

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

  ASN   No of nets  Total ann.   Description
 6347      742           963      SAVVIS Communications Corpora
18566      709           726      Covad Communications 
 6197      545           717      BellSouth Network Solutions, 
 7018      543          1422      AT&T 
 3356      501           893      Level 3 Communications, LLC 
  702      399           650      UUNET - Commercial IP service
 6198      381           512      BellSouth Network Solutions, 
 1239      375           939      Sprint 
  701      370          1299      UUNET Technologies, Inc. 
27364      366           379      Armstrong Cable Services 
 9583      337           492      Satyam Infoway Ltd.,
 5668      334           381      Century Telephone 
 4766      316           498      Korea Internet Exchange for "
20115      300           566      Charter Communications 
 6467      266           366      E.Spire Communications, Inc. 
 9929      259           327      China Netcom Corp.
14824      253           277      NewSouth Communications Corp.
 3320      248           299      Deutsche Telekom AG
13609      245           288      Choice One Communications Inc
25844      245           245      Skadden, Arps, Slate, Meagher

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

   4:3        12:833      13:1        15:5        16:2        17:3      
  20:7        24:760      32:65       33:2        38:74       40:54     
  44:4        55:1        56:3        57:16       60:4        61:443    
  62:506      63:1869     64:2067     65:2034     66:2723     67:330    
  68:502      69:643      70:64       80:576      81:344      82:187    
  83:107      84:6       128:145     129:171     130:80      131:183    
 132:23      133:1       134:178     135:17      136:178     137:54     
 138:170     139:35      140:166     141:106     142:119     143:60     
 144:102     145:42      146:288     147:88      148:417     149:110    
 150:93      151:71      152:160     153:64      154:2       155:148    
 156:57      157:63      158:139     159:148     160:52      161:66     
 162:382     163:78      164:186     165:164     166:109     167:216    
 168:231     169:110     170:284     171:8       192:5557    193:2824   
 194:2066    195:1384    196:575     198:3644    199:3099    200:3598   
 201:9       202:4733    203:5648    204:3121    205:2091    206:2262   
 207:2508    208:2193    209:3052    210:1453    211:573     212:996    
 213:1189    214:70      215:30      216:3755    217:973     218:166    
 219:119     220:227     221:31      222:98     

End of report


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