[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Apr 16 14:05:46 EDT 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 Apr, 2004

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

BGP routing table entries examined:                            136651
    Prefixes after maximum aggregation:                         83006
    Unique aggregates announced to Internet:                    66172
Total ASes present in the Internet Routing Table:               17054
Origin-only ASes present in the Internet Routing Table:         14784
Origin ASes announcing only one prefix:                          6834
Transit ASes present in the Internet Routing Table:              2270
Transit-only ASes present in the Internet Routing Table:           85
Average AS path length visible in the Internet Routing Table:     4.7
    Max AS path length visible:                                    18
Illegal AS announcements present in the Routing Table:              3
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           17
Number of addresses announced to Internet:                 1279524352
    Equivalent to 76 /8s, 67 /16s and 254 /24s
    Percentage of available address space announced:             34.5
    Percentage of allocated address space announced:             57.5
    Percentage of available address space allocated:             60.0
Total number of prefixes smaller than registry allocations:     61270

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

Prefixes being announced by APNIC Region ASes:                    25972
    Total APNIC prefixes after maximum aggregation:               13641
Prefixes being announced from the APNIC address blocks:           24295
    Unique aggregates announced from the APNIC address blocks:    13578
APNIC Region origin ASes present in the Internet Routing Table:    2044
APNIC Region origin ASes announcing only one prefix:                609
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:                         16
Number of APNIC addresses announced to Internet:              142413184
    Equivalent to 8 /8s, 125 /16s and 13 /24s
    Percentage of available APNIC address space announced:         76.7

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     78905
    Total ARIN prefixes after maximum aggregation:                48618
Prefixes being announced from the ARIN address blocks:            60917
    Unique aggregates announced from the ARIN address blocks:     21452
ARIN Region origin ASes present in the Internet Routing Table:     9104
ARIN Region origin ASes announcing only one prefix:                3230
ARIN Region transit ASes present in the Internet Routing Table:     894
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               221804832
    Equivalent to 13 /8s, 56 /16s and 121 /24s
    Percentage of available ARIN address space announced:          73.4

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 - 32767
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:                     24836
    Total RIPE prefixes after maximum aggregation:                17872
Prefixes being announced from the RIPE address blocks:            21651
    Unique aggregates announced from the RIPE address blocks:     14369
RIPE Region origin ASes present in the Internet Routing Table:     5359
RIPE Region origin ASes announcing only one prefix:                2870
RIPE Region transit ASes present in the Internet Routing Table:     927
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               159405568
    Equivalent to 9 /8s, 128 /16s and 86 /24s
    Percentage of available RIPE address space announced:          55.9

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
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:                    5799
    Total LACNIC prefixes after maximum aggregation:               2202
Prefixes being announced from the LACNIC address blocks:           5436
    Unique aggregates announced from the LACNIC address blocks:    3386
LACNIC Region origin ASes present in the Internet Routing Table:    371
LACNIC Region origin ASes announcing only one prefix:               102
LACNIC Region transit ASes present in the Internet Routing Table:    73
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              14553088
    Equivalent to 0 /8s, 222 /16s and 16 /24s
    Percentage of available LACNIC address space announced:        43.4

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

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

Prefixes being announced by AfriNIC Region ASes:                   1138
    Total AfriNIC prefixes after maximum aggregation:               673
Prefixes being announced from the AfriNIC address blocks:           748
    Unique aggregates announced from the AfriNIC address blocks:    556
AfriNIC Region origin ASes present in the Internet Routing Table:    90
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              1838848
    Equivalent to 0 /8s, 28 /16s and 15 /24s
    Percentage of available AfriNIC address space announced:       11.0

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      863       1091         629   Telstra Pty Ltd
 4134      722       3179         119   Data Communications Bureau
 4766      465       2916         251   Korea Internet Exchange for "
 9583      436         39         100   Satyam Infoway Ltd.,
 4755      360        131          55   Videsh Sanchar Nigam Ltd. Aut
 2907      356       1862         332   SINET Japan
 9443      353         69          78   Primus Telecommunications
 9929      347        155          31   China Netcom Corp.
  703      337        374         259   UUNET
17557      322         23         164   Pakistan Telecom
17676      309       4572          41   XTAGE CORPORATION
 2764      294        273         240   connect.com.au pty ltd
 7474      272        300         216   Optus Communications Pty Ltd
 9942      223         71         127   COMindico Australia
 9800      217        348          58   CHINA UNICOM
 4780      212        193          26   Digital United Inc.
 9498      203         31          44   BHARTI BT INTERNET LTD.
 4837      173       1571         102   chinanet IDC center beijing n
 9304      168        159          23   Hutchison Telecom (HK)
 7633      160         23          43   Software Technology Parks of 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1434       6964        1001   AT&T 
  701     1318       8555         946   UUNET Technologies, Inc. 
 1239      935       3033         634   Sprint 
 3356      893      10960         689   Level 3 Communications, LLC 
  209      758       3493         518   Qwest 
 4323      715        559         198   Time Warner Communications, I
18566      698        192           8   Covad Communications 
 6197      689        506         252   BellSouth Network Solutions, 
20115      595        349         309   Charter Communications 
 6198      566        364         206   BellSouth Network Solutions, 
 7843      535        620         110   Adelphia Corp. 
  852      513       1127         404   Telus Advanced Communications
 7066      501        208         273   Virginia Polytechnic Institut
 7132      450       7847         332   Southwestern Bell Internet Se
 2386      433        579         235   AT&T Data Communications Serv
27364      405         29          23   Armstrong Cable Services 
 4355      396        323         103   EarthLink, Inc. 
22909      383        839          23   Comcast Cable Corporation 
  376      380        343         112   Reseau Interordinateurs Scien
 6347      376        386          84   SAVVIS Communications Corpora

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      665       2039         556   UUNET - Commercial IP service
 3320      293       2477         235   Deutsche Telekom AG
 3301      266        984         257   TeliaNet Sweden
 8220      264        412         252   COLT Internet - International
  680      245       2027         240   DFN-IP service G-WiN
 1257      233        510         195   SWIPnet Swedish IP Network
13083      216         51           8   Mannesmann Datenverarbeitung 
 5515      197        778         140   Sonera Solution Autonomous Sy
 3246      196        451         194   Song Networks
  786      175       1826         175   The JANET IP Service
 8708      173        111         162   Romania Data Systems S.A.
 3215      167        815          71   France Telecom Transpac
25186      164        187         106   France Telecom Transpac's Tra
 5400      157        241         140   BT Ignite European Backbone
 6746      136         28         114   Dynamic Network Technologies,
 3303      135        618         135   Swisscom Ltd
 3269      134       1101          65   TELECOM ITALIA
12302      121         17          28   MobiFon S.A.
  719      113        288         102   LANLINK autonomous system
 1273      111        166          88   Cable & Wireless Deutschland 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      379        122          69   ImpSat
 8151      265        357         130   UniNet S.A. de C.V. 
11172      207         75          43   Servicios Alestra S.A de C.V 
16814      163         11           6   NSS, S.A. 
 6147      145         78          20   Telefonica Del Peru 
 7303      141         53          26   Telecom Argentina Stet-France
 6503      138        220          93   AVANTEL, S.A. 
 6505      132         90          92   Global One Communicaoes Ltda 
11992       90          9          29   Integrated Systems 
11556       88         73          25   Cable-Wireless Panama 
 6535       79          5          19   Chilesat Servicios  Empresari
15311       75         18          38   Telefonica Empresas 
14420       74          5          30   ANDINATEL S.A. 
 4270       71         18           9   Red de Interconexion Universi
14535       70          6           5   Techtel S.A. 
11311       69          7          16   Sinectis S.A. 
14259       69          4           5   GTD Internet S.A. 
 5639       64          7          13   Telecommunications Services o
 7080       64          4           1   Electronica y Comunicaciones 
10292       63          6          25   TELECOMMUNICATIONS OF JAMAICA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      254        632         219   The Internet Solution 
 5536      106          8           3   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       89        272          79   The Internetworking Company o
11845       36          9          11   Data Pro Business Online 
 9129       33          3           4   UUNET Kenya
24835       31         18           6   RAYA Telecom - Egypt
 5713       26        125          24   Telkom SA Ltd 
16637       25          9          18   Johnnic e-Ventures 
12455       24          4           2   Jambonet Autonomous system
 8524       23          2           4   AUCEGYPT Autonomous System
 6713       22         38           9   Itissalat Al-MAGHRIB
14988       22         16           1   Botswana Telecommunications C
10798       18          1          12   Standard Bank of South Africa
15706       16          2           3   Sudatel Internet Exchange Aut
12258       15          3          10   Vodacom Internet Company 
15808       14          1           6   Communication Solutions Ltd i
 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
18566       698         690      Covad Communications 
 4134       722         603      Data Communications Bureau
 4323       715         517      Time Warner Communications, I
 6197       689         437      BellSouth Network Solutions, 
 7843       535         425      Adelphia Corp. 
27364       405         382      Armstrong Cable Services 
  701      1318         372      UUNET Technologies, Inc. 
 6198       566         360      BellSouth Network Solutions, 
22909       383         360      Comcast Cable Corporation 
 5668       365         349      Century Telephone 
 9583       436         336      Satyam Infoway Ltd.,
22773       358         323      Cox Communications, Inc. Atla
 9929       347         316      China Netcom Corp.
 6140       379         310      ImpSat
 4755       360         305      Videsh Sanchar Nigam Ltd. Aut
 1239       935         301      Sprint 
 4355       396         293      EarthLink, Inc. 
 6347       376         292      SAVVIS Communications Corpora
20115       595         286      Charter Communications 
 9443       353         275      Primus Telecommunications

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

Bad AS  Designation  Network              Transit AS  Description
18416   UNALLOCATED   61.56.96.0/20         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

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

Network            Origin AS  Description
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
156.154.16.0/22       7786     Lockheed Martin IMS 
158.0.0.0/13           568     DISO-UNRRA 
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
192.83.16.0/20        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         568     DISO-UNRRA 

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      /12:58      
/13:112     /14:293     /15:511     /16:7673    /17:1985    /18:3545    
/19:9297    /20:9687    /21:7024    /22:9917    /23:11396   /24:74490   
/25:184     /26:216     /27:128     /28:29      /29:4       /30:48      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
18566      681           698      Covad Communications 
 7018      532          1434      AT&T 
 6197      526           689      BellSouth Network Solutions, 
 3356      494           893      Level 3 Communications, LLC 
 6198      408           566      BellSouth Network Solutions, 
  702      403           665      UUNET - Commercial IP service
27364      398           405      Armstrong Cable Services 
 7066      395           501      Virginia Polytechnic Institut
  701      366          1318      UUNET Technologies, Inc. 
 1239      354           935      Sprint 
20115      346           595      Charter Communications 
  690      336           373      Merit Network 
 5668      319           365      Century Telephone 
 4766      287           465      Korea Internet Exchange for "
 9583      278           436      Satyam Infoway Ltd.,
 9929      276           347      China Netcom Corp.
14824      250           275      NewSouth Communications Corp.
25844      244           244      Skadden, Arps, Slate, Meagher
19029      242           369      New Edge Networks 
 3320      240           293      Deutsche Telekom AG

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

   4:3        12:824      13:1        15:4        16:1        17:3      
  20:8        24:809      32:83       38:60       40:54       44:3      
  55:1        56:4        57:13       61:384      62:461      63:1816   
  64:1911     65:1937     66:2542     67:297      68:552      69:480    
  80:500      81:262      82:149      83:30      128:148     129:252    
 130:101     131:79      132:17      134:182     135:17      136:193    
 137:106     138:149     139:36      140:150     141:133     142:108    
 143:49      144:92      145:40      146:295     147:69      148:366    
 149:92      150:93      151:63      152:207     153:62      154:1      
 155:129     156:59      157:55      158:146     159:159     160:51     
 161:53      162:375     163:77      164:328     165:164     166:98     
 167:211     168:215     169:101     170:289     171:8       192:5507   
 193:2634    194:2005    195:1338    196:530     198:3650    199:2978   
 200:3261    201:8       202:4541    203:5488    204:2987    205:1973   
 206:2250    207:2599    208:2320    209:2851    210:1357    211:520    
 212:943     213:1125    214:26      215:26      216:3367    217:885    
 218:164     219:96      220:204     221:27      222:20     

End of report



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