[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Mar 7 05:03:28 EST 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

For a graphical representation, please see http://www.apnic.net/stats/bgp.

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

Routing Table Report   20:00 +10GMT Fri 07 Mar, 2003

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

BGP routing table entries examined:                            122334
    Prefixes after maximum aggregation:                         77814
    Unique aggregates announced to Internet:                    58981
Total ASes present in the Internet Routing Table:               14766
Origin-only ASes present in the Internet Routing Table:         12811
Origin ASes announcing only one prefix:                          5791
Transit ASes present in the Internet Routing Table:              1955
Transit-only ASes present in the Internet Routing Table:           66
Average AS path length visible in the Internet Routing Table:     5.4
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:             11
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    17
Number of addresses announced to Internet:                 1199996293
    Equivalent to 71 /8s, 134 /16s and 125 /24s
    Percentage of available address space announced:             32.4
    Percentage of allocated address space announced:             58.3
    Percentage of available address space allocated:             55.5
Total number of prefixes smaller than registry allocations:     57285

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

Prefixes being announced by APNIC Region ASes:                  20595
    Total APNIC prefixes after maximum aggregation:             12127
Prefixes being announced from the APNIC address blocks:         19075
    Unique aggregates announced from the APNIC address blocks:  11688
APNIC Region origin ASes present in the Internet Routing Table:  1747
APNIC Region origin ASes announcing only one prefix:              523
APNIC Region transit ASes present in the Internet Routing Table:  293
Average APNIC Region AS path length visible:                      5.4
    Max APNIC Region AS path length visible:                       16
Number of APNIC addresses announced to Internet:            106802592
    Equivalent to 6 /8s, 93 /16s and 173 /24s
    Percentage of available APNIC address space announced:       56.6

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   61/8, 202/7, 210/7, 218/7 and 220/6

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

Prefixes being announced by ARIN Region ASes:                   75239
    Total ARIN prefixes after maximum aggregation:              47925
Prefixes being announced from the ARIN address blocks:          53478
    Unique aggregates announced from the ARIN address blocks:   16726
ARIN Region origin ASes present in the Internet Routing Table:   8213
ARIN Region origin ASes announcing only one prefix:              2776
ARIN Region transit ASes present in the Internet Routing Table:   782
Average ARIN Region AS path length visible:                       5.3
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             187715776
    Equivalent to 11 /8s, 48 /16s and 80 /24s
    Percentage of available ARIN address space announced:        69.9

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
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:                   21209
    Total RIPE prefixes after maximum aggregation:              15553
Prefixes being announced from the RIPE address blocks:          17705
    Unique aggregates announced from the RIPE address blocks:   11827
RIPE Region origin ASes present in the Internet Routing Table:   4412
RIPE Region origin ASes announcing only one prefix:              2407
RIPE Region transit ASes present in the Internet Routing Table:   803
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        17
Number of RIPE addresses announced to Internet:             127701760
    Equivalent to 7 /8s, 156 /16s and 147 /24s
    Percentage of available RIPE address space announced:        76.1

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:                  5281
    Total LACNIC prefixes after maximum aggregation:             2209
Prefixes being announced from the LACNIC address blocks:         4661
    Unique aggregates announced from the LACNIC address blocks:  3034
LACNIC Region origin ASes present in the Internet Routing Table:  330
LACNIC Region origin ASes announcing only one prefix:              85
LACNIC Region transit ASes present in the Internet Routing Table:  67
Average LACNIC Region AS path length visible:                     5.8
    Max LACNIC Region AS path length visible:                      15
Number of LACNIC addresses announced to Internet:            12217856
    Equivalent to 0 /8s, 186 /16s and 110 /24s
    Percentage of available LACNIC address space announced:      72.8

LACNIC AS Blocks       26592 - 26623, 27648 - 28671
LACNIC Address Blocks  200/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221     1108       1119         804   Telstra Pty Ltd
  703      402        369         313   UUNET
 2907      387       1960         366   SINET Japan
17557      359         26         133   Pakistan Telecom
 2764      326        341         293   connect.com.au pty ltd
 4134      304       2637          96   Data Communications Bureau
 7474      303        275         206   Optus Communications Pty Ltd
 4814      263         79          15   China Telecom (Group)
 3786      242        773         207   DACOM Corporation
 4755      234        133          73   Videsh Sanchar Nigam Ltd. Aut
17676      232       3574          24   XTAGE CORPORATION
 9583      217         33          13   Satyam Infoway Ltd.,
 4766      208       2074         155   Korea Internet Exchange for "
 9443      178         57          76   Primus Telecommunications
 9800      166        205          41   CHINA UNICOM
 4765      152         10          14   World Net & Services Co., Ltd
 9238      138          8          17   TATA ISP
 4739      128         57         116   Commerical Internet eXchange 
 4716      127        733         121   TTnet
 9768      125        384          64   Korea Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  701     1598       8874        1148   UUNET Technologies, Inc. 
 7018     1382       7166         957   AT&T 
 3908     1247       1590         485   Supernet, Inc. 
 1239      979       3153         692   Sprint 
    1      670       8088         438   GENUITY 
 7843      593        408         207   Adelphia Corp. 
  852      576       1107         443   Telus Advanced Communications
 4323      538        473         169   Time Warner Communications, I
  209      534       2092         341   Qwest 
 4151      532        691          59   USDA 
  690      508         74         317   Merit Network 
18566      507        116           9   Covad Communications 
 3561      498       2304         344   Cable & Wireless USA 
 6197      498        555         114   BellSouth Network Solutions, 
 7066      484        204         254   Virginia Polytechnic Institut
 2386      483        479         244   AT&T Data Communications Serv
  705      450        165         196   UUNET Technologies, Inc. 
 6198      448        196         199   BellSouth Network Solutions, 
 3549      401        694         307   Global Crossing 
 4355      401        308         112   EarthLink, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      789       2233         652   UUNET - Commercial IP service
 3301      315       1142         303   TeliaNet Sweden
 3215      314        818         172   France Telecom Transpac
 3320      265       1996         228   Deutsche Telekom AG
  680      232       2054         229   DFN-IP service G-WiN
 1257      219        370         196   SWIPnet Swedish IP Network
  719      203        307         127   LANLINK autonomous system
 5400      198         70          98   BT Ignite European Backbone
 5515      186        779         160   Sonera Solution Autonomous Sy
  786      179       1874         179   The JANET IP Service
 8708      153         42         150   Romania Data Systems S.A.
20858      148         17           3   This AS will be used to conne
 3303      145        517         144   Swisscom Ltd
 8220      126        182         117   COLT Internet - International
12302      122         17          29   MobiFon S.A.
 2856      117       1298         107   BTnet UK Regional network
 3269      111        751          61   TELECOM ITALIA
 3233      106         10          19   RNC - Romanian Natioanal R&D 
 3246      105        360         102   Song Networks
 5511      104        175          80   France Telecom

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      284         98         104   ImpSat
 7303      240         36          49   Telecom Argentina Stet-France
 8151      214        341         116   UniNet S.A. de C.V. 
11172      161         66          33   Servicios Alestra S.A de C.V 
 6503      157        191         110   AVANTEL, S.A. 
16814      139          9          18   NSS, S.A. 
13999      127         36           8   Mega Cable S.A. de C.V. 
11340      110          3          38   Red Universitaria Nacional 
10620      107          7          31   TVCABLE BOGOTA 
 6147       74         62          20   Telefonica Del Peru 
 1916       73        306          44   Fundacao de Amparo a Pesquisa
 6535       72          5          23   Chilesat Servicios  Empresari
 8065       72          6          21   Empresas Publicas de Medellin
11992       71          7          32   Integrated Systems 
15311       71         27          36   Telefonica Empresas 
 4270       69         18          10   Red de Interconexion Universi
 7984       66         11          42   Global One Colombia 
 7080       64          4           1   Electronica y Comunicaciones 
 7927       64          5          39   Global One Venezuela 
11830       61          4          20   Instituto Costarricense de El

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

  ASN   No of nets  Net Savings Description
 3908      1247         762      Supernet, Inc. 
18566       507         498      Covad Communications 
 4151       532         473      USDA 
 7018      1382         425      AT&T 
 7843       593         386      Adelphia Corp. 
 6197       498         384      BellSouth Network Solutions, 
 4323       538         369      Time Warner Communications, I
11492       322         319      Cable One 
 1221      1108         304      Telstra Pty Ltd
 6347       371         292      SAVVIS Communications Corpora
 4355       401         289      EarthLink, Inc. 
 1239       979         287      Sprint 
22927       295         281      TELEFONICA DE ARGENTINA 
  705       450         254      UUNET Technologies, Inc. 
 6198       448         249      BellSouth Network Solutions, 
 4814       263         248      China Telecom (Group)
 2386       483         239      AT&T Data Communications Serv
    1       670         232      GENUITY 
 7066       484         230      Virginia Polytechnic Institut
17557       359         226      Pakistan Telecom

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.199.0/24      1880       Stupi, house man's p
64521   PRIVATE       198.189.23.0/24       2151       California State Uni
64521   PRIVATE       198.189.24.0/24       2151       California State Uni
64524   PRIVATE       198.189.134.0/24      2151       California State Uni
64524   PRIVATE       198.189.135.0/24      2151       California State Uni
64524   PRIVATE       198.189.136.0/24      2151       California State Uni
64524   PRIVATE       198.189.137.0/24      2151       California State Uni
64524   PRIVATE       198.189.138.0/24      2151       California State Uni
64521   PRIVATE       198.189.158.0/24      2151       California State Uni
64521   PRIVATE       198.189.235.0/24      2151       California State Uni
64521   PRIVATE       198.189.236.0/24      2151       California State Uni

Advertised Unregistered Addresses
---------------------------------

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
132.0.0.0/10           568     DISO-UNRRA 
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
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 
192.156.164.0/24     19548     Adelphia Business Solutions 
192.172.0.0/19         568     DISO-UNRRA 
192.243.36.0/23       2044     AUSNet, Inc. 

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:17       /9:3       /10:8       /11:13      /12:46      
/13:89      /14:240     /15:445     /16:7347    /17:1605    /18:2906    
/19:8197    /20:8120    /21:5828    /22:8841    /23:10593   /24:67303   
/25:166     /26:188     /27:104     /28:80      /29:59      /30:72      
/31:4       /32:60      

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

  ASN   No of nets  Total ann.   Description
 3908      818          1247      Supernet, Inc. 
18566      502           507      Covad Communications 
  702      494           789      UUNET - Commercial IP service
 7018      485          1382      AT&T 
  701      465          1598      UUNET Technologies, Inc. 
  690      457           508      Merit Network 
 7066      383           484      Virginia Polytechnic Institut
 6197      366           498      BellSouth Network Solutions, 
 1239      365           979      Sprint 
 6198      358           448      BellSouth Network Solutions, 
 7843      355           593      Adelphia Corp. 
11492      321           322      Cable One 
22927      294           295      TELEFONICA DE ARGENTINA 
 2386      283           483      AT&T Data Communications Serv
 6140      271           284      ImpSat
20115      269           397      Charter Communications 
 3215      239           314      France Telecom Transpac
 7303      239           240      Telecom Argentina Stet-France
27364      232           240      Armstrong Cable Services 
 4355      229           401      EarthLink, Inc. 

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

  12:658      13:1        15:4        17:2        20:9        24:879    
  25:1        32:90       34:1        38:60       40:18       44:2      
  55:1        57:15       61:452      62:509      63:1929     64:1390   
  65:1898     66:1471     67:214      68:296      69:54       80:330    
  81:97      128:148     129:223     130:40      131:82      132:11     
 133:11      134:146     135:4       136:114     137:117     138:101    
 139:74      140:138     141:123     142:94      143:47      144:89     
 145:18      146:264     147:86      148:272     149:73      150:43     
 151:110     152:258     153:51      154:2       155:107     156:42     
 157:41      158:124     159:140     160:34      161:60      162:136    
 163:86      164:297     165:142     166:80      167:321     168:393    
 169:54      170:312     171:8       192:5287    193:2392    194:2009   
 195:958     196:473     198:3597    199:3213    200:2888    202:3643   
 203:5092    204:3040    205:2029    206:2414    207:2427    208:2703   
 209:2802    210:738     211:334     212:969     213:756     214:21     
 215:21      216:3256    217:598     218:80      219:14      220:52     


End of report



More information about the Rtma mailing list