[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Dec 19 13:06:21 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

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

Routing Table Report   04:00 +10GMT Sat 20 Dec, 2003

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

BGP routing table entries examined:                            130966
    Prefixes after maximum aggregation:                         80591
    Unique aggregates announced to Internet:                    62936
Total ASes present in the Internet Routing Table:               16359
Origin-only ASes present in the Internet Routing Table:         14221
Origin ASes announcing only one prefix:                          6497
Transit ASes present in the Internet Routing Table:              2138
Transit-only ASes present in the Internet Routing Table:           69
Average AS path length visible in the Internet Routing Table:     4.9
    Max AS path length visible:                                    19
Illegal AS announcements present in the Routing Table:             14
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           14
Number of addresses announced to Internet:                 1273216100
    Equivalent to 75 /8s, 227 /16s and 188 /24s
    Percentage of available address space announced:             34.4
    Percentage of allocated address space announced:             59.9
    Percentage of available address space allocated:             57.3
Total number of prefixes smaller than registry allocations:     57753

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

Prefixes being announced by APNIC Region ASes:                  23847
    Total APNIC prefixes after maximum aggregation:             12812
Prefixes being announced from the APNIC address blocks:         22305
    Unique aggregates announced from the APNIC address blocks:  12636
APNIC Region origin ASes present in the Internet Routing Table:  1952
APNIC Region origin ASes announcing only one prefix:              574
APNIC Region transit ASes present in the Internet Routing Table:  302
Average APNIC Region AS path length visible:                      4.9
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:            132620672
    Equivalent to 7 /8s, 231 /16s and 161 /24s
    Percentage of available APNIC address space announced:       71.5

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:                     77067
    Total ARIN prefixes after maximum aggregation:                47827
Prefixes being announced from the ARIN address blocks:            59593
    Unique aggregates announced from the ARIN address blocks:     20637
ARIN Region origin ASes present in the Internet Routing Table:     8830
ARIN Region origin ASes announcing only one prefix:                3091
ARIN Region transit ASes present in the Internet Routing Table:     839
Average ARIN Region AS path length visible:                         4.7
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               212426400
    Equivalent to 12 /8s, 169 /16s and 94 /24s
    Percentage of available ARIN address space announced:          74.5

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, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     23294
    Total RIPE prefixes after maximum aggregation:                17010
Prefixes being announced from the RIPE address blocks:            20169
    Unique aggregates announced from the RIPE address blocks:     13373
RIPE Region origin ASes present in the Internet Routing Table:     5054
RIPE Region origin ASes announcing only one prefix:                2697
RIPE Region transit ASes present in the Internet Routing Table:     885
Average RIPE Region AS path length visible:                         5.6
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               147501184
    Equivalent to 8 /8s, 202 /16s and 176 /24s
    Percentage of available RIPE address space announced:          67.6

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
                       30720 - 31743
RIPE Address Blocks    62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    5610
    Total LACNIC prefixes after maximum aggregation:               2244
Prefixes being announced from the LACNIC address blocks:           5188
    Unique aggregates announced from the LACNIC address blocks:    3226
LACNIC Region origin ASes present in the Internet Routing Table:    366
LACNIC Region origin ASes announcing only one prefix:               107
LACNIC Region transit ASes present in the Internet Routing Table:    68
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              13771776
    Equivalent to 0 /8s, 210 /16s and 36 /24s
    Percentage of available LACNIC address space announced:        41.0

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

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

Prefixes being announced by AfriNIC Region ASes:                   1133
    Total AfriNIC prefixes after maximum aggregation:               698
Prefixes being announced from the AfriNIC address blocks:           726
    Unique aggregates announced from the AfriNIC address blocks:    557
AfriNIC Region origin ASes present in the Internet Routing Table:    93
AfriNIC Region origin ASes announcing only one prefix:               28
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              1757696
    Equivalent to 0 /8s, 26 /16s and 210 /24s
    Percentage of available AfriNIC address space announced:       10.5

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      925       1099         660   Telstra Pty Ltd
 4134      756       2397         109   Data Communications Bureau
 2907      363       1863         340   SINET Japan
 9443      344         69          80   Primus Telecommunications
  703      337        356         262   UUNET
 4755      324        130          60   Videsh Sanchar Nigam Ltd. Aut
17557      310         22         152   Pakistan Telecom
17676      291       4284          37   XTAGE CORPORATION
 2764      289        289         239   connect.com.au pty ltd
 4766      268       2896         193   Korea Internet Exchange for "
 7474      262        306         211   Optus Communications Pty Ltd
 9583      262         44          11   Satyam Infoway Ltd.,
 4538      249       1810          20   China Education and Research 
 3786      234        771         204   DACOM Corporation
 9929      221        154          27   China Netcom Corp.
 9942      211         69         123   COMindico Australia
 9800      209        346          56   CHINA UNICOM
 9498      173         22          31   BHARTI BT INTERNET LTD.
17642      152         40         111   RequestDSL BGP AS# for Sydney
 4837      148       1271          99   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1420       7072         984   AT&T 
  701     1416       8663         972   UUNET Technologies, Inc. 
 1239      943       3104         654   Sprint 
 6197      823        475         247   BellSouth Network Solutions, 
18566      733        176           8   Covad Communications 
  209      732       3530         512   Qwest 
 3356      725      10925         575   Level 3 Communications, LLC 
 4323      677        589         204   Time Warner Communications, I
20115      582        320         332   Charter Communications 
 6198      567        338         194   BellSouth Network Solutions, 
 7843      507        520         120   Adelphia Corp. 
  852      505       1124         402   Telus Advanced Communications
 7066      505        207         270   Virginia Polytechnic Institut
 7132      452       7357         313   Southwestern Bell Internet Se
19029      416        174         269   New Edge Networks 
 2386      403        516         226   AT&T Data Communications Serv
  690      400         58         270   Merit Network 
 4355      388        323          99   EarthLink, Inc. 
  705      381        196         236   UUNET Technologies, Inc. 
27364      381         28          24   Armstrong Cable Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      698       2075         581   UUNET - Commercial IP service
 3301      298       1154         283   TeliaNet Sweden
 3320      280       1972         230   Deutsche Telekom AG
 8220      264        425         250   COLT Internet - International
 1257      258        505         192   SWIPnet Swedish IP Network
  680      229       2022         226   DFN-IP service G-WiN
13083      215         51           8   Mannesmann Datenverarbeitung 
 3246      185        424         183   Song Networks
  786      175       1826         175   The JANET IP Service
 5515      173        762         135   Sonera Solution Autonomous Sy
25186      168        201         109   France Telecom Transpac's Tra
 8708      165        111         158   Romania Data Systems S.A.
 3303      144        557         137   Swisscom Ltd
 5400      141        176         126   BT Ignite European Backbone
 3215      139        706          66   France Telecom Transpac
  719      134        288         104   LANLINK autonomous system
12302      126         18          33   MobiFon S.A.
 3269      119        941          64   TELECOM ITALIA
 2856      118       1294         108   BTnet UK Regional network
 3352      102        876          30   Ibernet, Internet Access Netw

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      349        120          68   ImpSat
 8151      241        352         125   UniNet S.A. de C.V. 
11172      195         77          44   Servicios Alestra S.A de C.V 
 7303      179         45          33   Telecom Argentina Stet-France
16814      156         10           5   NSS, S.A. 
 6505      135         91          95   Global One Communicaoes Ltda 
10620      131         11          36   TVCABLE BOGOTA 
 6503      127        204          93   AVANTEL, S.A. 
 6147      124         78          20   Telefonica Del Peru 
11340      108          3          29   Red Universitaria Nacional 
 8065       77         10          21   Empresas Publicas de Medellin
 6535       76          5          19   Chilesat Servicios  Empresari
15311       76         16          39   Telefonica Empresas 
11992       75         25          31   Integrated Systems 
 6429       74         51          13   AT&T Chile Internet S.A. 
 4270       71         18           9   Red de Interconexion Universi
11311       67          7          22   Sinectis S.A. 
 7080       64          4           1   Electronica y Comunicaciones 
27699       62        168          15   TELECOMUNICACOES DE SAO PAULO
14420       61          4          23   ANDINATEL S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      249        632         218   The Internet Solution 
 2018       94        297          92   Tertiary Education Network 
 2905       90        272          80   The Internetworking Company o
 5536       89          7          22   Internet Egypt Network
 2561       58          6           3   Egyptian Universities Network
11845       36          9          11   Data Pro Business Online 
 3208       32          2           1   ARN Network
 9129       25          3           4   UUNET Kenya
16637       25          9          19   Johnnic e-Ventures 
 5713       24         93          22   Telkom SA Ltd 
12455       24          4           2   Jambonet Autonomous system
24835       23         18           6   RAYA Telecom - Egypt
 6713       22         38           9   Itissalat Al-MAGHRIB
10798       18          1          12   Standard Bank of South Africa
 8524       17          1           3   AUCEGYPT Autonomous System
12258       15          3          10   Vodacom Internet Company 
15706       15          2           5   Sudatel Internet Exchange Aut
17148       14          1           8   First National Bank 
 2609       12         10           3   Tunisia BackBone AS
 8346       12          6          12   SONATEL-AS Autonomous System

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

  ASN   No of nets  Net Savings Description
18566       733         725      Covad Communications 
 4134       756         647      Data Communications Bureau
 6197       823         576      BellSouth Network Solutions, 
 4323       677         473      Time Warner Communications, I
  701      1416         444      UUNET Technologies, Inc. 
 7843       507         387      Adelphia Corp. 
 6198       567         373      BellSouth Network Solutions, 
27364       381         357      Armstrong Cable Services 
22909       320         307      Comcast Cable Corporation 
 5668       317         301      Century Telephone 
22773       324         295      Cox Communications, Inc. Atla
 1239       943         289      Sprint 
 4355       388         289      EarthLink, Inc. 
 6140       349         281      ImpSat
 1221       925         265      Telstra Pty Ltd
 9443       344         264      Primus Telecommunications
 4755       324         264      Videsh Sanchar Nigam Ltd. Aut
17676       291         254      XTAGE CORPORATION
 9583       262         251      Satyam Infoway Ltd.,
20115       582         250      Charter Communications 

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

Bad AS  Designation  Network              Transit AS  Description
31758   UNALLOCATED   69.22.180.0/24        4474       Global Village Commu
64512   PRIVATE       131.95.1.240/28      16430       University of Southe
64198   RESERVED      192.107.195.0/24     22767       NASA Earth Science D
64198   RESERVED      198.10.49.0/24       22767       NASA Earth Science D
64512   PRIVATE       204.70.1.0/24         3561       Cable & Wireless USA
64512   PRIVATE       204.70.2.0/24         3561       Cable & Wireless USA
64512   PRIVATE       204.70.3.0/24         3561       Cable & Wireless USA
64512   PRIVATE       204.70.4.0/24         3561       Cable & Wireless USA
64512   PRIVATE       204.70.5.0/24         3561       Cable & Wireless USA
31763   UNALLOCATED   205.235.32.0/19       3593       EPIX 
31763   UNALLOCATED   205.235.48.0/24       3593       EPIX 
31763   UNALLOCATED   205.235.49.0/24       3593       EPIX 
65500   PRIVATE       209.151.142.0/24     26788       Enersource Telecom I
31749   UNALLOCATED   216.248.43.0/24       2551       ICG NetAhead, Inc 

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

Network            Origin AS  Description
132.0.0.0/10           568     DISO-UNRRA 
137.0.0.0/13           568     DISO-UNRRA 
158.0.0.0/13           568     DISO-UNRRA 
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        /8:19       /9:4       /10:6       /11:15      /12:57      
/13:102     /14:276     /15:491     /16:7529    /17:1838    /18:3439    
/19:8854    /20:9269    /21:6697    /22:9311    /23:10971   /24:71453   
/25:181     /26:226     /27:141     /28:32      /29:8       /30:38      
/31:0       /32:9       

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

  ASN   No of nets  Total ann.   Description
18566      727           733      Covad Communications 
 6197      672           823      BellSouth Network Solutions, 
 7018      524          1420      AT&T 
  701      430          1416      UUNET Technologies, Inc. 
  702      426           698      UUNET - Commercial IP service
 6198      425           567      BellSouth Network Solutions, 
 7066      398           505      Virginia Polytechnic Institut
27364      375           381      Armstrong Cable Services 
 3356      369           725      Level 3 Communications, LLC 
20115      364           582      Charter Communications 
  690      361           400      Merit Network 
 1239      338           943      Sprint 
 5668      280           317      Century Telephone 
19029      270           416      New Edge Networks 
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      227           280      Deutsche Telekom AG
 6386      222           248      bellsouth.net, inc. 
 4355      215           388      EarthLink, Inc. 
 6517      211           236      Yipes Communications, Inc. 
  209      206           732      Qwest 

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

   4:3         5:1        12:758      13:1        14:1        15:6      
  16:1        17:3        20:7        24:875      32:82       38:44     
  40:26       44:2        55:1        56:1        57:14       61:326    
  62:453      63:1834     64:1786     65:1783     66:2192     67:244    
  68:684      69:367      80:439      81:176      82:60      128:146    
 129:260     130:67      131:80      132:17      134:177     135:16     
 136:184     137:114     138:125     139:31      140:164     141:134    
 142:110     143:49      144:61      145:39      146:290     147:73     
 148:318     149:88      150:119     151:60      152:208     153:57     
 154:1       155:131     156:60      157:62      158:133     159:137    
 160:46      161:49      162:368     163:71      164:331     165:176    
 166:104     167:211     168:181     169:96      170:299     171:8      
 192:5507    193:2470    194:2007    195:1305    196:515     198:3633   
 199:2838    200:3105    201:5       202:4057    203:5369    204:2966   
 205:2030    206:2259    207:2590    208:2479    209:2864    210:1001   
 211:399     212:943     213:957     214:23      215:25      216:3358   
 217:797     218:120     219:78      220:117     221:17     

End of report



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