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Weekly Routing Table Report

  • From: Routing Table Analysis
  • Date: Fri Oct 08 14:11:19 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@lists.apnic.net

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

Routing Table Report   04:00 +10GMT Sat 09 Oct, 2004

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

BGP routing table entries examined:                              149020
    Prefixes after maximum aggregation:                           87919
    Unique aggregates announced to Internet:                      71042
Total ASes present in the Internet Routing Table:                 18195
Origin-only ASes present in the Internet Routing Table:           15790
Origin ASes announcing only one prefix:                            7393
Transit ASes present in the Internet Routing Table:                2405
Transit-only ASes present in the Internet Routing Table:             79
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      26
Prefixes from unregistered ASNs in the Routing Table:                58
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1344430884
    Equivalent to 80 /8s, 34 /16s and 99 /24s
    Percentage of available address space announced:               36.3
    Percentage of allocated address space announced:               58.6
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       68695

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

Prefixes being announced by APNIC Region ASes:                    28600
    Total APNIC prefixes after maximum aggregation:               14296
Prefixes being announced from the APNIC address blocks:           26765
    Unique aggregates announced from the APNIC address blocks:    14304
APNIC Region origin ASes present in the Internet Routing Table:    2146
APNIC Region origin ASes announcing only one prefix:                641
APNIC Region transit ASes present in the Internet Routing Table:    329
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         22
Number of APNIC addresses announced to Internet:              164575616
    Equivalent to 9 /8s, 207 /16s and 57 /24s
    Percentage of available APNIC address space announced:         75.1

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:                     85051
    Total ARIN prefixes after maximum aggregation:                51403
Prefixes being announced from the ARIN address blocks:            65114
    Unique aggregates announced from the ARIN address blocks:     22973
ARIN Region origin ASes present in the Internet Routing Table:     9604
ARIN Region origin ASes announcing only one prefix:                3450
ARIN Region transit ASes present in the Internet Routing Table:     931
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               233997056
    Equivalent to 13 /8s, 242 /16s and 131 /24s
    Percentage of available ARIN address space announced:          69.7

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:                     27632
    Total RIPE prefixes after maximum aggregation:                19190
Prefixes being announced from the RIPE address blocks:            24481
    Unique aggregates announced from the RIPE address blocks:     16076
RIPE Region origin ASes present in the Internet Routing Table:     5882
RIPE Region origin ASes announcing only one prefix:                3169
RIPE Region transit ASes present in the Internet Routing Table:    1018
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               173276096
    Equivalent to 10 /8s, 83 /16s and 251 /24s
    Percentage of available RIPE address space announced:          60.8

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:                    6457
    Total LACNIC prefixes after maximum aggregation:               2340
Prefixes being announced from the LACNIC address blocks:           6288
    Unique aggregates announced from the LACNIC address blocks:    3705
LACNIC Region origin ASes present in the Internet Routing Table:    393
LACNIC Region origin ASes announcing only one prefix:               113
LACNIC Region transit ASes present in the Internet Routing Table:    83
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        18
Number of LACNIC addresses announced to Internet:              16269568
    Equivalent to 0 /8s, 248 /16s and 65 /24s
    Percentage of available LACNIC address space announced:        48.5

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

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

Prefixes being announced by AfriNIC Region ASes:                   1272
    Total AfriNIC prefixes after maximum aggregation:               690
Prefixes being announced from the AfriNIC address blocks:           886
    Unique aggregates announced from the AfriNIC address blocks:    677
AfriNIC Region origin ASes present in the Internet Routing Table:    93
AfriNIC Region origin ASes announcing only one prefix:               20
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              2064640
    Equivalent to 0 /8s, 31 /16s and 129 /24s
    Percentage of available AfriNIC address space announced:       12.3

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      840       4391         160   Data Communications Bureau
 1221      809       1184         581   Telstra Pty Ltd
 4766      544       3407         266   Korea Internet Exchange for "
 9583      529         41         106   Satyam Infoway Ltd.,
17676      370       5532          52   XTAGE CORPORATION
 4755      367        132          51   Videsh Sanchar Nigam Ltd. Aut
 2907      354       1857         328   SINET Japan
 9443      353         69          79   Primus Telecommunications
 9929      344        161          33   China Netcom Corp.
17557      316         23         157   Pakistan Telecom
  703      311        342         240   UUNET
 2764      285        274         232   connect.com.au pty ltd
 7474      270        269         201   Optus Communications Pty Ltd
 9942      238         73         127   COMindico Australia
 4802      233         28         142   Wantree Development
 9800      230        374          67   CHINA UNICOM
 9498      224         49          48   BHARTI BT INTERNET LTD.
 7563      221         48         164   Korea Internet Infrastructure
10036      203         19         186   C&M Communication Co. Ltd.
17974      203         62          10   PT TELEKOMUNIKASI INDONESIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1411       6749         983   AT&T WorldNet Services
  701     1273       8450         919   UUNET Technologies, Inc. 
 1239      939       2867         624   Sprint 
 2386      845        532         606   AT&T Data Communications Serv
 3549      843        563         206   Global Crossing 
 6197      794        491         319   BellSouth Network Solutions, 
 4323      790        637         216   Time Warner Telecom
18566      743        208           6   Covad Communications 
  721      723      21028         298   DLA Systems Automation Center
 3356      647      10923         445   Level 3 Communications, LLC 
 3561      634       2513         432   Cable & Wireless USA 
  209      627       3465         495   Qwest 
20115      589        427         302   Charter Communications 
  852      512       1142         398   Telus Advanced Communications
 7843      493        691          98   Adelphia Corp. 
 7132      449       8288         377   SBC Internet Services
 6198      432        403         203   BellSouth Network Solutions, 
  705      429        163         271   UUNET Technologies, Inc. 
27364      411         36          19   Armstrong Cable Services 
22773      402        960          18   Cox Communications, Inc. Atla

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      629       2013         519   UUNET - Commercial IP service
 3320      301       2470         238   Deutsche Telekom AG
 3301      282       1100         272   TeliaNet Sweden
 8220      279        461         265   COLT Internet - International
21502      269         40           3   NUMERICABLE is a cabled netwo
  680      251       2025         239   DFN-IP service G-WiN
 3246      218        476         215   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 8708      207        114         183   Romania Data Systems S.A.
 1257      205        742         178   SWIPnet Swedish IP Network
 5515      201        843         147   Sonera Solution Autonomous Sy
  786      176       1794         176   The JANET IP Service
  719      157        288         102   LANLINK autonomous system
 3215      156        908          76   France Telecom Transpac
 6746      154         30         129   Dynamic Network Technologies,
 8866      151         18          19   Bulgarian Telecommunication C
25186      150        154         106   France Telecom Transpac's Tra
 3269      149       1259          67   TELECOM ITALIA
 5400      148        207         120   BT Ignite European Backbone
 3303      147        610         129   Swisscom Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      349        139          68   ImpSat
 8151      304        439         129   UniNet S.A. de C.V. 
16814      212         13           7   NSS, S.A. 
11172      205        100          54   Servicios Alestra S.A de C.V 
 6147      194         94          20   Telefonica Del Peru 
11664      171         13          26   Keytech SA 
 6505      137         90          94   Global One Communicaoes Ltda 
 7303      134         60          24   Telecom Argentina Stet-France
 6503      124        164          85   AVANTEL, S.A. 
11992      101          9          31   Integrated Systems 
11311       88          8          26   Sinectis S.A. 
 6535       85          7          19   Chilesat Servicios  Empresari
10481       81         32           7   Prima S.A. 
11556       81         41           3   Cable-Wireless Panama 
14420       80          5          33   ANDINATEL S.A. 
 4270       79         18           9   Red de Interconexion Universi
 5639       77          8           8   Telecommunications Services o
15311       76         21          36   Telefonica Empresas 
27716       74          9          12   Eveloz
14522       72          5           8   SatNet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      251        631         218   The Internet Solution 
 5536      113         16           4   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       93        276          81   The Internetworking Company o
20928       58         16           1   Noor Advanced Technologies AS
22750       50          3           2   >>UNKNOWN<<
24835       34         34           7   RAYA Telecom - Egypt
 9129       33          3           4   UUNET Kenya
 6713       31         42          10   Itissalat Al-MAGHRIB
 5713       26        125          24   Telkom SA Ltd 
 8524       25          1           4   AUCEGYPT Autonomous System
14988       24         16           1   Botswana Telecommunications C
16637       22         10          19   Johnnic e-Ventures 
10798       18          1          12   Standard Bank of South Africa
12258       18          3          12   Vodacom Internet Company 
12455       17          4           2   Jambonet Autonomous system
 8346       15          7          14   SONATEL-AS Autonomous System
15706       15          4           2   Sudatel Internet Exchange Aut
21491       15          1           4   UTL On-line is RF broadband I
21280       14          2           3   Swift Global Kenya Ltd.Is an 

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

  ASN   No of nets  Net Savings Description
18566       743         737      Covad Communications 
 4134       840         680      Data Communications Bureau
 3549       843         637      Global Crossing 
 4323       790         574      Time Warner Telecom
 6197       794         475      BellSouth Network Solutions, 
  721       723         425      DLA Systems Automation Center
 9583       529         423      Satyam Infoway Ltd.,
 7843       493         395      Adelphia Corp. 
27364       411         392      Armstrong Cable Services 
22773       402         384      Cox Communications, Inc. Atla
 5668       398         380      Century Telephone 
 6467       389         359      E.Spire Communications, Inc. 
  701      1273         354      UUNET Technologies, Inc. 
22909       383         353      Comcast Cable Corporation 
17676       370         318      XTAGE CORPORATION
 4755       367         316      Videsh Sanchar Nigam Ltd. Aut
 1239       939         315      Sprint 
 9929       344         311      China Netcom Corp.
 6478       379         300      AT&T Worldnet Services 
 4355       389         290      EarthLink, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
64512   PRIVATE       24.249.231.0/24      15218       COX Communications 
64512   PRIVATE       24.249.232.0/24      15218       COX Communications 
64512   PRIVATE       24.249.233.0/24      15218       COX Communications 
64512   PRIVATE       24.249.234.0/24      15218       COX Communications 
64512   PRIVATE       24.249.235.0/24      15218       COX Communications 
65006   PRIVATE       84.18.32.0/19        33831       *
65217   PRIVATE       192.102.236.0/24       217       University of Minnes
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
22750   UNALLOCATED   196.44.64.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.64.0/19        2905       The Internetworking 
22750   UNALLOCATED   196.44.65.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.66.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.67.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.68.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.69.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.70.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.71.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.72.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.73.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.74.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.75.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.76.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.77.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.78.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.79.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.80.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.81.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.82.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.83.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.84.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.85.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.86.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.87.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.88.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.89.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.90.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.91.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.92.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.93.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.94.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.95.0/24        2905       The Internetworking 
22750   UNALLOCATED   196.44.224.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.224.0/20       2905       The Internetworking 
22750   UNALLOCATED   196.44.225.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.226.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.227.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.228.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.229.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.230.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.231.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.232.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.233.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.234.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.235.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.236.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.237.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.238.0/24       2905       The Internetworking 
22750   UNALLOCATED   196.44.239.0/24       2905       The Internetworking 

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
111.0.0.0/24          7563     Korea Internet Infrastructure
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

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      /12:62      
/13:137     /14:308     /15:552     /16:8102    /17:2247    /18:3881    
/19:9700    /20:10370   /21:7877    /22:10881   /23:12542   /24:81493   
/25:233     /26:209     /27:113     /28:59      /29:48      /30:116     
/31:0       /32:47      

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

  ASN   No of nets  Total ann.   Description
18566      728           743      Covad Communications 
 6197      638           794      BellSouth Network Solutions, 
 2386      610           845      AT&T Data Communications Serv
 7018      561          1411      AT&T WorldNet Services
 3549      444           843      Global Crossing 
27364      395           411      Armstrong Cable Services 
  702      381           629      UUNET - Commercial IP service
 1239      376           939      Sprint 
 9583      368           529      Satyam Infoway Ltd.,
 4766      364           544      Korea Internet Exchange for "
  701      351          1273      UUNET Technologies, Inc. 
 5668      346           398      Century Telephone 
 6198      316           432      BellSouth Network Solutions, 
20115      299           589      Charter Communications 
 6467      286           389      E.Spire Communications, Inc. 
 9929      275           344      China Netcom Corp.
 6517      271           298      Yipes Communications, Inc. 
13609      266           309      Choice One Communications Inc
21502      266           269      NUMERICABLE is a cabled netwo
 3561      257           634      Cable & Wireless USA 

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

   4:4         8:8        12:1404     13:1        15:1        16:2      
  17:3        18:1        20:6        24:739      32:68       33:2      
  38:80       40:54       44:3        47:2        52:3        55:1      
  56:3        57:17       60:6        61:519      62:509      63:1833   
  64:2543     65:2072     66:2502     67:420      68:548      69:731    
  70:80       80:520      81:532      82:310      83:174      84:40     
 111:1       128:121     129:165     130:87      131:185     132:34     
 134:188     135:17      136:181     137:55      138:182     139:38     
 140:184     141:107     142:123     143:69      144:161     145:42     
 146:323     147:94      148:396     149:109     150:87      151:65     
 152:151     153:68      154:2       155:130     156:57      157:70     
 158:142     159:162     160:60      161:71      162:374     163:79     
 164:213     165:161     166:117     167:220     168:358     169:120    
 170:280     171:9       192:5571    193:2894    194:2136    195:1520   
 196:644     198:3676    199:3282    200:3772    201:20      202:4880   
 203:5710    204:3382    205:2099    206:2435    207:2647    208:2273   
 209:3004    210:1492    211:636     212:1115    213:1198    214:131    
 215:30      216:3688    217:1046    218:176     219:101     220:256    
 221:37      222:43     

End of report




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