[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Jun 13 06:06:20 EDT 2003


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   20:00 +10GMT Fri 13 Jun, 2003

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

BGP routing table entries examined:                            126129
    Prefixes after maximum aggregation:                         79032
    Unique aggregates announced to Internet:                    59425
Total ASes present in the Internet Routing Table:               15334
Origin-only ASes present in the Internet Routing Table:         13292
Origin ASes announcing only one prefix:                          6018
Transit ASes present in the Internet Routing Table:              2042
Transit-only ASes present in the Internet Routing Table:           74
Average AS path length visible in the Internet Routing Table:     5.0
    Max AS path length visible:                                   255
Illegal AS announcements present in the Routing Table:              9
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           17
Number of addresses announced to Internet:                 1251322176
    Equivalent to 74 /8s, 149 /16s and 169 /24s
    Percentage of available address space announced:             33.8
    Percentage of allocated address space announced:             60.3
    Percentage of available address space allocated:             55.9
Total number of prefixes smaller than registry allocations:     55636

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

Prefixes being announced by APNIC Region ASes:                  21478
    Total APNIC prefixes after maximum aggregation:             12586
Prefixes being announced from the APNIC address blocks:         19892
    Unique aggregates announced from the APNIC address blocks:  12186
APNIC Region origin ASes present in the Internet Routing Table:  1817
APNIC Region origin ASes announcing only one prefix:              521
APNIC Region transit ASes present in the Internet Routing Table:  298
Average APNIC Region AS path length visible:                      5.0
    Max APNIC Region AS path length visible:                       18
Number of APNIC addresses announced to Internet:            114817952
    Equivalent to 6 /8s, 215 /16s and 251 /24s
    Percentage of available APNIC address space announced:       61.9

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:                   77450
    Total ARIN prefixes after maximum aggregation:              48216
Prefixes being announced from the ARIN address blocks:          55548
    Unique aggregates announced from the ARIN address blocks:   16496
ARIN Region origin ASes present in the Internet Routing Table:   8476
ARIN Region origin ASes announcing only one prefix:              2894
ARIN Region transit ASes present in the Internet Routing Table:   814
Average ARIN Region AS path length visible:                       4.8
    Max ARIN Region AS path length visible:                        19
Number of ARIN addresses announced to Internet:             192875776
    Equivalent to 11 /8s, 127 /16s and 13 /24s
    Percentage of available ARIN address space announced:        71.9

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
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                   21791
    Total RIPE prefixes after maximum aggregation:              15988
Prefixes being announced from the RIPE address blocks:          18247
    Unique aggregates announced from the RIPE address blocks:   12202
RIPE Region origin ASes present in the Internet Routing Table:   4634
RIPE Region origin ASes announcing only one prefix:              2516
RIPE Region transit ASes present in the Internet Routing Table:   830
Average RIPE Region AS path length visible:                       5.6
    Max RIPE Region AS path length visible:                        20
Number of RIPE addresses announced to Internet:             132097536
    Equivalent to 7 /8s, 223 /16s and 166 /24s
    Percentage of available RIPE address space announced:        71.6

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
RIPE Address Blocks    62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
                       212/7 and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                  5401
    Total LACNIC prefixes after maximum aggregation:             2242
Prefixes being announced from the LACNIC address blocks:         4817
    Unique aggregates announced from the LACNIC address blocks:  2991
LACNIC Region origin ASes present in the Internet Routing Table:  335
LACNIC Region origin ASes announcing only one prefix:              87
LACNIC Region transit ASes present in the Internet Routing Table:  67
Average LACNIC Region AS path length visible:                     5.4
    Max LACNIC Region AS path length visible:                      24
Number of LACNIC addresses announced to Internet:            12709120
    Equivalent to 0 /8s, 193 /16s and 237 /24s
    Percentage of available LACNIC address space announced:      37.9

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1073       1087         764   Telstra Pty Ltd
 4755      419        133          70   Videsh Sanchar Nigam Ltd. Aut
 2907      374       1895         350   SINET Japan
17557      348         25         148   Pakistan Telecom
  703      343        371         272   UUNET
 2764      311        341         278   connect.com.au pty ltd
 7474      274        306         205   Optus Communications Pty Ltd
17676      250       3862          19   XTAGE CORPORATION
 3786      243        773         210   DACOM Corporation
 4134      240       2066         119   Data Communications Bureau
 9583      229         35          21   Satyam Infoway Ltd.,
 4766      212       2475         159   Korea Internet Exchange for "
 9800      183        294          59   CHINA UNICOM
 9443      182         58          82   Primus Telecommunications
 9498      155         10          24   BHARTI BT INTERNET LTD.
 4739      139         58         127   Commerical Internet eXchange 
 9238      135          8          18   TATA ISP
 7539      130        156         104   TANet2, sponsored by NSC, TAI
 4716      128        745         122   TTnet
 9768      126        384          60   Korea Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1549       8897        1094   UUNET Technologies, Inc. 
 7018     1338       7181         927   AT&T 
 7132     1015       6572         227   Southwestern Bell Internet Se
 1239      949       3018         667   Sprint 
 3908      915       1549         480   Supernet, Inc. 
  189      683        340         296   Genuity 
11305      647        170          72   Interland Incorporated 
 7843      618        360         171   Adelphia Corp. 
    1      617       2603         419   GENUITY 
 4323      603        525         175   Time Warner Communications, I
18566      599        160           8   Covad Communications 
  852      527       1124         416   Telus Advanced Communications
  705      510        273         333   UUNET Technologies, Inc. 
  209      494       2106         299   Qwest 
 6197      493        343         195   BellSouth Network Solutions, 
 7066      484        204         259   Virginia Polytechnic Institut
 6198      466        230         177   BellSouth Network Solutions, 
20115      462        194         283   Charter Communications 
  690      448         65         293   Merit Network 
 2386      403        506         235   AT&T Data Communications Serv

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      750       2174         636   UUNET - Commercial IP service
 3301      304       1171         291   TeliaNet Sweden
 3215      284        864         159   France Telecom Transpac
 5515      281        795         150   Sonera Solution Autonomous Sy
 3320      265       2004         227   Deutsche Telekom AG
  719      261        307         124   LANLINK autonomous system
  680      232       2053         229   DFN-IP service G-WiN
 8220      224        384         212   COLT Internet - International
 1257      223        315         185   SWIPnet Swedish IP Network
 5400      220        139         129   BT Ignite European Backbone
  786      179       1874         179   The JANET IP Service
 8708      152         44         149   Romania Data Systems S.A.
 3303      140        549         137   Swisscom Ltd
12302      128         18          35   MobiFon S.A.
 2856      123       1315         113   BTnet UK Regional network
 3246      118        366         114   Song Networks
 3269      118        823          65   TELECOM ITALIA
 3352      109        780          32   Ibernet, Internet Access Netw
 2647       99       4129          39   SITA
 5511       95        177          76   France Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      296         98         109   ImpSat
 7303      238         37          57   Telecom Argentina Stet-France
 8151      214        350         117   UniNet S.A. de C.V. 
11172      171         66          40   Servicios Alestra S.A de C.V 
16814      135          9          17   NSS, S.A. 
 6503      130        189          93   AVANTEL, S.A. 
10620      115          7          32   TVCABLE BOGOTA 
11340      105          3          33   Red Universitaria Nacional 
 6147       97         70          21   Telefonica Del Peru 
11992       90          9          34   Integrated Systems 
13999       86         36           8   Mega Cable S.A. de C.V. 
 8065       82          9          16   Empresas Publicas de Medellin
 6535       74          5          21   Chilesat Servicios  Empresari
 1916       73        306          43   Fundacao de Amparo a Pesquisa
15311       71         12          35   Telefonica Empresas 
11311       69          7          13   Sinectis S.A. 
 4270       68         18           9   Red de Interconexion Universi
11830       66          4          27   Instituto Costarricense de El
 7927       65          5          40   Global One Venezuela 
 7080       64          4           1   Electronica y Comunicaciones 

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

  ASN   No of nets  Net Savings Description
 7132      1015         788      Southwestern Bell Internet Se
18566       599         591      Covad Communications 
11305       647         575      Interland Incorporated 
 7843       618         447      Adelphia Corp. 
 3908       915         435      Supernet, Inc. 
 4323       603         428      Time Warner Communications, I
 7018      1338         411      AT&T 
  189       683         387      Genuity 
 4755       419         349      Videsh Sanchar Nigam Ltd. Aut
 1221      1073         309      Telstra Pty Ltd
 6197       493         298      BellSouth Network Solutions, 
 4355       398         294      EarthLink, Inc. 
27364       312         294      Armstrong Cable Services 
 6198       466         289      BellSouth Network Solutions, 
22927       298         285      TELEFONICA DE ARGENTINA 
 6347       363         284      SAVVIS Communications Corpora
 1239       949         282      Sprint 
  376       383         267      Reseau Interordinateurs Scien
22909       276         264      Comcast Cable Corporation 
17676       250         231      XTAGE CORPORATION

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

Bad AS  Designation  Network              Transit AS  Description
65516   PRIVATE       61.232.70.0/24       17621       China Netcom Corp.
65516   PRIVATE       61.232.71.0/24       17621       China Netcom Corp.
65516   PRIVATE       61.232.72.0/22       17621       China Netcom Corp.
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
64811   PRIVATE       211.154.136.0/23      4813       China Telecom(Group)
64811   PRIVATE       211.154.138.0/23      4813       China Telecom(Group)
64811   PRIVATE       211.154.152.0/23      4813       China Telecom(Group)
64811   PRIVATE       211.154.154.0/23      4813       China Telecom(Group)
65501   PRIVATE       218.144.170.128/26    4766       Korea Internet Excha

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
172.208.0.0/14        1668     GNN Hosting Service 
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
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T 
192.136.79.0/24        719     LANLINK autonomous system
192.153.136.0/21       568     DISO-UNRRA 
192.158.254.0/24       705     UUNET Technologies, Inc. 
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        /8:20       /9:5       /10:8       /11:13      /12:53      
/13:99      /14:256     /15:470     /16:7426    /17:1692    /18:2993    
/19:8480    /20:8562    /21:6138    /22:9082    /23:10660   /24:69576   
/25:165     /26:256     /27:58      /28:41      /29:26      /30:23      
/31:0       /32:27      

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

  ASN   No of nets  Total ann.   Description
  189      606           683      Genuity 
18566      593           599      Covad Communications 
 3908      573           915      Supernet, Inc. 
11305      573           647      Interland Incorporated 
 7018      466          1338      AT&T 
  702      458           750      UUNET - Commercial IP service
  701      433          1549      UUNET Technologies, Inc. 
  690      406           448      Merit Network 
 7066      381           484      Virginia Polytechnic Institut
 7843      378           618      Adelphia Corp. 
 6197      368           493      BellSouth Network Solutions, 
 6198      364           466      BellSouth Network Solutions, 
 1239      358           949      Sprint 
20115      323           462      Charter Communications 
27364      306           312      Armstrong Cable Services 
22927      236           298      TELEFONICA DE ARGENTINA 
    1      225           617      GENUITY 
19262      221           257      Verizon Global Networks 
 4355      217           398      EarthLink, Inc. 
 3215      213           284      France Telecom Transpac

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

   4:2        12:704      13:1        15:4        16:1        17:3      
  20:7        24:854      25:1        32:95       38:40       40:21     
  44:2        57:17       61:261      62:343      63:1875     64:1950   
  65:1967     66:2581     67:178      68:375      69:202      80:361    
  81:129     128:142     129:176     130:47      131:81      132:26     
 134:174     135:4       136:116     137:106     138:109     139:64     
 140:158     141:120     142:94      143:43      144:106     145:16     
 146:272     147:97      148:288     149:61      150:44      151:70     
 152:231     153:60      154:7       155:116     156:54      157:45     
 158:127     159:138     160:43      161:76      162:130     163:77     
 164:312     165:143     166:94      167:318     168:408     169:61     
 170:312     171:8       192:5352    193:2474    194:2003    195:1057   
 196:474     198:3564    199:2717    200:2996    202:3793    203:5245   
 204:3001    205:2050    206:2369    207:2425    208:2593    209:2900   
 210:814     211:353     212:984     213:810     214:19      215:23     
 216:3554    217:628     218:89      219:44      220:94      221:3      


End of report



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