[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Jul 10 04:06:25 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 10 Jul, 2004

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

BGP routing table entries examined:                              142432
    Prefixes after maximum aggregation:                           85368
    Unique aggregates announced to Internet:                      68367
Total ASes present in the Internet Routing Table:                 17570
Origin-only ASes present in the Internet Routing Table:           15228
Origin ASes announcing only one prefix:                            7144
Transit ASes present in the Internet Routing Table:                2342
Transit-only ASes present in the Internet Routing Table:             75
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:             19
Number of addresses announced to Internet:                   1301128680
    Equivalent to 77 /8s, 141 /16s and 165 /24s
    Percentage of available address space announced:               35.1
    Percentage of allocated address space announced:               57.6
    Percentage of available address space allocated:               60.9
Total number of prefixes smaller than registry allocations:       65398

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

Prefixes being announced by APNIC Region ASes:                    27304
    Total APNIC prefixes after maximum aggregation:               14033
Prefixes being announced from the APNIC address blocks:           25525
    Unique aggregates announced from the APNIC address blocks:    13976
APNIC Region origin ASes present in the Internet Routing Table:    2069
APNIC Region origin ASes announcing only one prefix:                623
APNIC Region transit ASes present in the Internet Routing Table:    333
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              151884992
    Equivalent to 9 /8s, 13 /16s and 148 /24s
    Percentage of available APNIC address space announced:         69.3

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:                     81553
    Total ARIN prefixes after maximum aggregation:                49875
Prefixes being announced from the ARIN address blocks:            63350
    Unique aggregates announced from the ARIN address blocks:     21888
ARIN Region origin ASes present in the Internet Routing Table:     9303
ARIN Region origin ASes announcing only one prefix:                3335
ARIN Region transit ASes present in the Internet Routing Table:     909
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               227346464
    Equivalent to 13 /8s, 141 /16s and 8 /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:                     26205
    Total RIPE prefixes after maximum aggregation:                18548
Prefixes being announced from the RIPE address blocks:            23016
    Unique aggregates announced from the RIPE address blocks:     15243
RIPE Region origin ASes present in the Internet Routing Table:     5652
RIPE Region origin ASes announcing only one prefix:                3051
RIPE Region transit ASes present in the Internet Routing Table:     984
Average RIPE Region AS path length visible:                         5.4
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               165957952
    Equivalent to 9 /8s, 228 /16s and 81 /24s
    Percentage of available RIPE address space announced:          58.2

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:                    6181
    Total LACNIC prefixes after maximum aggregation:               2228
Prefixes being announced from the LACNIC address blocks:           5871
    Unique aggregates announced from the LACNIC address blocks:    3609
LACNIC Region origin ASes present in the Internet Routing Table:    379
LACNIC Region origin ASes announcing only one prefix:               111
LACNIC Region transit ASes present in the Internet Routing Table:    71
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC addresses announced to Internet:              15293184
    Equivalent to 0 /8s, 233 /16s and 91 /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:                   1186
    Total AfriNIC prefixes after maximum aggregation:               684
Prefixes being announced from the AfriNIC address blocks:           783
    Unique aggregates announced from the AfriNIC address blocks:    617
AfriNIC Region origin ASes present in the Internet Routing Table:    92
AfriNIC Region origin ASes announcing only one prefix:               24
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              1892352
    Equivalent to 0 /8s, 28 /16s and 224 /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      824       1057         594   Telstra Pty Ltd
 4134      806       3752         146   Data Communications Bureau
 4766      497       2895         264   Korea Internet Exchange for "
 9583      486         39         103   Satyam Infoway Ltd.,
 4755      399        133          61   Videsh Sanchar Nigam Ltd. Aut
 9443      353         69          78   Primus Telecommunications
 2907      352       1840         326   SINET Japan
17676      341       5084          33   XTAGE CORPORATION
 9929      327        157          32   China Netcom Corp.
17557      321         22         164   Pakistan Telecom
  703      319        342         248   UUNET
 2764      288        258         236   connect.com.au pty ltd
 7474      267        269         207   Optus Communications Pty Ltd
 9942      230         71         128   COMindico Australia
 4802      226         25         141   Wantree Development
 9800      224        369          62   CHINA UNICOM
 9498      218         48          49   BHARTI BT INTERNET LTD.
10026      206         11         131   IXNet Hong Kong Limited
10036      198         18         179   C&M Communication Co. Ltd.
 4837      189       2019         105   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1443       6882         995   AT&T 
  701     1303       8440         935   UUNET Technologies, Inc. 
 6347      974        399          98   SAVVIS Communications Corpora
 1239      936       2889         630   Sprint 
 3356      891      10916         673   Level 3 Communications, LLC 
 4323      738        569         206   Time Warner Communications, I
18566      725        192           8   Covad Communications 
 6197      710        526         278   BellSouth Network Solutions, 
  209      613       3453         505   Qwest 
20115      563        374         289   Charter Communications 
 2548      549        899         131   Business Internet, Inc. 
 7843      515        669         130   Adelphia Corp. 
 6198      513        396         214   BellSouth Network Solutions, 
  852      511       1142         399   Telus Advanced Communications
  721      469      15375         339   DLA Systems Automation Center
 7132      466       7874         350   Southwestern Bell Internet Se
 2386      406        549         225   AT&T Data Communications Serv
22909      398        826          22   Comcast Cable Corporation 
 4355      391        323         101   EarthLink, Inc. 
  705      389        128         265   UUNET Technologies, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      648       2039         542   UUNET - Commercial IP service
 3320      297       2463         237   Deutsche Telekom AG
 3301      282       1098         271   TeliaNet Sweden
 8220      275        429         263   COLT Internet - International
 1257      248        498         196   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      190        112         176   Romania Data Systems S.A.
  719      181        288         103   LANLINK autonomous system
 3215      180        895          71   France Telecom Transpac
  786      174       1794         174   The JANET IP Service
25186      172        156         114   France Telecom Transpac's Tra
 6746      157         29         128   Dynamic Network Technologies,
 5400      145        205         120   BT Ignite European Backbone
 3269      135       1099          64   TELECOM ITALIA
 3303      130        609         129   Swisscom Ltd
 8866      128         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
 6140      369        140          65   ImpSat
11172      356         96          58   Servicios Alestra S.A de C.V 
 8151      275        389         127   UniNet S.A. de C.V. 
16814      219         14           8   NSS, S.A. 
 6147      187         86          20   Telefonica Del Peru 
 7303      148         54          27   Telecom Argentina Stet-France
 6505      134         90          92   Global One Communicaoes Ltda 
 6503      131        202          89   AVANTEL, S.A. 
11992       91          9          29   Integrated Systems 
11556       87         57          24   Cable-Wireless Panama 
 6535       81          5          16   Chilesat Servicios  Empresari
14420       78          5          28   ANDINATEL S.A. 
15311       75         19          37   Telefonica Empresas 
11311       72          7          17   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
14259       67          4           5   GTD Internet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      253        632         220   The Internet Solution 
 5536      111         16           4   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       90        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       30          9          23   Johnnic e-Ventures 
 9129       28          3           4   UUNET Kenya
 6713       26         38           9   Itissalat Al-MAGHRIB
 5713       25        125          23   Telkom SA Ltd 
14988       25         16           1   Botswana Telecommunications C
 8524       24          2           7   AUCEGYPT Autonomous System
12455       23          4           2   Jambonet Autonomous system
10798       18          1          12   Standard Bank of South Africa
15706       16          2           3   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       974         876      SAVVIS Communications Corpora
18566       725         717      Covad Communications 
 4134       806         660      Data Communications Bureau
 4323       738         532      Time Warner Communications, I
 6197       710         432      BellSouth Network Solutions, 
 2548       549         418      Business Internet, Inc. 
 7843       515         385      Adelphia Corp. 
 9583       486         383      Satyam Infoway Ltd.,
22909       398         376      Comcast Cable Corporation 
  701      1303         368      UUNET Technologies, Inc. 
 5668       380         362      Century Telephone 
27364       377         358      Armstrong Cable Services 
 4755       399         338      Videsh Sanchar Nigam Ltd. Aut
22773       383         327      Cox Communications, Inc. Atla
17676       341         308      XTAGE CORPORATION
 1239       936         306      Sprint 
 6467       337         305      E.Spire Communications, Inc. 
 6140       369         304      ImpSat
 6198       513         299      BellSouth Network Solutions, 
11172       356         298      Servicios Alestra S.A de C.V 

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
192.172.0.0/19         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        /8:18       /9:3       /10:6       /11:15      /12:59      
/13:127     /14:302     /15:524     /16:7896    /17:2098    /18:3683    
/19:9525    /20:10001   /21:7525    /22:10388   /23:11922   /24:77640   
/25:216     /26:214     /27:155     /28:24      /29:15      /30:66      
/31:0       /32:10      

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

  ASN   No of nets  Total ann.   Description
 6347      751           974      SAVVIS Communications Corpora
18566      708           725      Covad Communications 
 7018      558          1443      AT&T 
 6197      539           710      BellSouth Network Solutions, 
 3356      499           891      Level 3 Communications, LLC 
  702      396           648      UUNET - Commercial IP service
 6198      382           513      BellSouth Network Solutions, 
 1239      372           936      Sprint 
  701      367          1303      UUNET Technologies, Inc. 
27364      364           377      Armstrong Cable Services 
 5668      333           380      Century Telephone 
 9583      332           486      Satyam Infoway Ltd.,
 2548      330           549      Business Internet, Inc. 
 4766      316           497      Korea Internet Exchange for "
20115      297           563      Charter Communications 
 9929      259           327      China Netcom Corp.
14824      253           277      NewSouth Communications Corp.
 3320      246           297      Deutsche Telekom AG
13609      244           287      Choice One Communications Inc
25844      244           244      Skadden, Arps, Slate, Meagher

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

   4:3        12:829      13:1        15:5        16:2        17:3      
  20:8        24:763      32:65       33:2        38:73       40:54     
  44:4        55:1        56:3        57:15       61:456      62:508    
  63:1875     64:2037     65:2030     66:2664     67:339      68:500    
  69:623      70:64       80:564      81:337      82:184      83:98     
  84:5       128:148     129:175     130:80      131:187     132:23     
 134:177     135:17      136:178     137:54      138:168     139:35     
 140:166     141:122     142:118     143:60      144:100     145:41     
 146:288     147:77      148:417     149:107     150:94      151:71     
 152:162     153:64      154:2       155:145     156:60      157:55     
 158:140     159:148     160:52      161:64      162:381     163:77     
 164:186     165:164     166:105     167:219     168:228     169:111    
 170:286     171:8       192:5552    193:2808    194:2059    195:1385   
 196:553     198:3662    199:3112    200:3610    201:8       202:4731   
 203:5659    204:3133    205:2099    206:2270    207:2493    208:2196   
 209:3037    210:1448    211:571     212:994     213:1174    214:70     
 215:30      216:3722    217:974     218:171     219:118     220:233    
 221:31      222:62     

End of report


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