[rtma] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Fri Apr 23 14:06:13 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 24 Apr, 2004

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

BGP routing table entries examined:                            136951
    Prefixes after maximum aggregation:                         83183
    Unique aggregates announced to Internet:                    66397
Total ASes present in the Internet Routing Table:               17090
Origin-only ASes present in the Internet Routing Table:         14819
Origin ASes announcing only one prefix:                          6844
Transit ASes present in the Internet Routing Table:              2271
Transit-only ASes present in the Internet Routing Table:           80
Average AS path length visible in the Internet Routing Table:     4.7
    Max AS path length visible:                                    26
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:                 1282660100
    Equivalent to 76 /8s, 115 /16s and 215 /24s
    Percentage of available address space announced:             34.6
    Percentage of allocated address space announced:             57.6
    Percentage of available address space allocated:             60.0
Total number of prefixes smaller than registry allocations:     61497

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

Prefixes being announced by APNIC Region ASes:                    26072
    Total APNIC prefixes after maximum aggregation:               13676
Prefixes being announced from the APNIC address blocks:           24379
    Unique aggregates announced from the APNIC address blocks:    13664
APNIC Region origin ASes present in the Internet Routing Table:    2041
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:                        4.9
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              144640384
    Equivalent to 8 /8s, 159 /16s and 9 /24s
    Percentage of available APNIC address space announced:         77.9

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:                     78837
    Total ARIN prefixes after maximum aggregation:                48684
Prefixes being announced from the ARIN address blocks:            60793
    Unique aggregates announced from the ARIN address blocks:     21470
ARIN Region origin ASes present in the Internet Routing Table:     9122
ARIN Region origin ASes announcing only one prefix:                3237
ARIN Region transit ASes present in the Internet Routing Table:     891
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               222220576
    Equivalent to 13 /8s, 62 /16s and 209 /24s
    Percentage of available ARIN address space announced:          73.6

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:                     25107
    Total RIPE prefixes after maximum aggregation:                17942
Prefixes being announced from the RIPE address blocks:            21919
    Unique aggregates announced from the RIPE address blocks:     14431
RIPE Region origin ASes present in the Internet Routing Table:     5382
RIPE Region origin ASes announcing only one prefix:                2872
RIPE Region transit ASes present in the Internet Routing Table:     929
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               159835648
    Equivalent to 9 /8s, 134 /16s and 230 /24s
    Percentage of available RIPE address space announced:          56.0

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:                    5787
    Total LACNIC prefixes after maximum aggregation:               2207
Prefixes being announced from the LACNIC address blocks:           5433
    Unique aggregates announced from the LACNIC address blocks:    3380
LACNIC Region origin ASes present in the Internet Routing Table:    374
LACNIC Region origin ASes announcing only one prefix:               104
LACNIC Region transit ASes present in the Internet Routing Table:    73
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              14628096
    Equivalent to 0 /8s, 223 /16s and 53 /24s
    Percentage of available LACNIC address space announced:        43.6

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

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

Prefixes being announced by AfriNIC Region ASes:                   1147
    Total AfriNIC prefixes after maximum aggregation:               674
Prefixes being announced from the AfriNIC address blocks:           756
    Unique aggregates announced from the AfriNIC address blocks:    562
AfriNIC Region origin ASes present in the Internet Routing Table:    90
AfriNIC Region origin ASes announcing only one prefix:               22
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:              1840384
    Equivalent to 0 /8s, 28 /16s and 21 /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      858       1091         626   Telstra Pty Ltd
 4134      725       3171         120   Data Communications Bureau
 4766      474       2916         253   Korea Internet Exchange for "
 9583      438         39          95   Satyam Infoway Ltd.,
 4755      360        129          53   Videsh Sanchar Nigam Ltd. Aut
 2907      355       1846         331   SINET Japan
 9443      354         69          78   Primus Telecommunications
 9929      348        155          31   China Netcom Corp.
  703      335        373         258   UUNET
17676      329       4892          54   XTAGE CORPORATION
17557      323         23         162   Pakistan Telecom
 2764      294        273         240   connect.com.au pty ltd
 7474      273        300         214   Optus Communications Pty Ltd
 9942      222         70         125   COMindico Australia
 9800      218        348          58   CHINA UNICOM
 4780      212        193          26   Digital United Inc.
 9498      205         31          45   BHARTI BT INTERNET LTD.
 4837      182       1683         105   chinanet IDC center beijing n
 9304      169        159          24   Hutchison Telecom (HK)
 7633      159         23          43   Software Technology Parks of 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1426       6964         997   AT&T 
  701     1315       8522         942   UUNET Technologies, Inc. 
 1239      938       3033         636   Sprint 
 3356      895      10968         690   Level 3 Communications, LLC 
  209      756       3479         518   Qwest 
 4323      721        559         200   Time Warner Communications, I
18566      699        192           8   Covad Communications 
 6197      695        507         256   BellSouth Network Solutions, 
 6198      563        366         207   BellSouth Network Solutions, 
20115      541        342         283   Charter Communications 
  852      513       1127         404   Telus Advanced Communications
 7066      502        208         274   Virginia Polytechnic Institut
 7843      497        624         112   Adelphia Corp. 
 7132      450       7847         332   Southwestern Bell Internet Se
 2386      432        579         235   AT&T Data Communications Serv
27364      405         29          23   Armstrong Cable Services 
 4355      393        323         103   EarthLink, Inc. 
  376      380        343         112   Reseau Interordinateurs Scien
22909      380        835          40   Comcast Cable Corporation 
 6347      377        386          85   SAVVIS Communications Corpora

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      662       2039         553   UUNET - Commercial IP service
 3320      296       2477         236   Deutsche Telekom AG
 3301      268        984         258   TeliaNet Sweden
 8220      268        412         255   COLT Internet - International
  680      244       2025         239   DFN-IP service G-WiN
 1257      233        510         195   SWIPnet Swedish IP Network
13083      216         51           8   Mannesmann Datenverarbeitung 
 5515      201        779         143   Sonera Solution Autonomous Sy
  719      200        288         103   LANLINK autonomous system
 3246      198        451         195   Song Networks
25186      176        188         117   France Telecom Transpac's Tra
  786      175       1826         175   The JANET IP Service
 8708      175        111         164   Romania Data Systems S.A.
 3215      167        815          71   France Telecom Transpac
 5400      159        241         140   BT Ignite European Backbone
 6746      137         28         114   Dynamic Network Technologies,
 3303      135        610         135   Swisscom Ltd
 3269      134       1101          65   TELECOM ITALIA
12302      121         17          28   MobiFon S.A.
 1273      112        166          89   Cable & Wireless Deutschland 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      379        122          74   ImpSat
 8151      265        357         130   UniNet S.A. de C.V. 
11172      208         75          43   Servicios Alestra S.A de C.V 
16814      163         11           6   NSS, S.A. 
 6147      149         78          20   Telefonica Del Peru 
 7303      140         53          27   Telecom Argentina Stet-France
 6503      136        220          92   AVANTEL, S.A. 
 6505      132         90          91   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 
 4270       71         18           9   Red de Interconexion Universi
11311       71          7          16   Sinectis S.A. 
14535       70          6           5   Techtel S.A. 
14259       69          4           5   GTD Internet S.A. 
14420       65          4          24   ANDINATEL S.A. 
 5639       64          7          13   Telecommunications Services o
 7080       64          4           1   Electronica y Comunicaciones 
10292       62          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       32          3           4   UUNET Kenya
24835       31         18           6   RAYA Telecom - Egypt
 5713       26        125          24   Telkom SA Ltd 
12455       25          4           2   Jambonet Autonomous system
14988       25         16           1   Botswana Telecommunications C
16637       25          9          18   Johnnic e-Ventures 
 6713       24         38           9   Itissalat Al-MAGHRIB
 8524       22          2           4   AUCEGYPT Autonomous System
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       699         691      Covad Communications 
 4134       725         605      Data Communications Bureau
 4323       721         521      Time Warner Communications, I
 6197       695         439      BellSouth Network Solutions, 
 7843       497         385      Adelphia Corp. 
27364       405         382      Armstrong Cable Services 
  701      1315         373      UUNET Technologies, Inc. 
 6198       563         356      BellSouth Network Solutions, 
 5668       370         354      Century Telephone 
 9583       438         343      Satyam Infoway Ltd.,
22909       380         340      Comcast Cable Corporation 
22773       361         325      Cox Communications, Inc. Atla
 9929       348         317      China Netcom Corp.
 4755       360         307      Videsh Sanchar Nigam Ltd. Aut
 6140       379         305      ImpSat
 1239       938         302      Sprint 
 6347       377         292      SAVVIS Communications Corpora
 4355       393         290      EarthLink, Inc. 
 9443       354         276      Primus Telecommunications
17676       329         275      XTAGE CORPORATION

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     /14:294     /15:509     /16:7735    /17:1994    /18:3552    
/19:9317    /20:9715    /21:7045    /22:9932    /23:11395   /24:74555   
/25:206     /26:253     /27:141     /28:29      /29:4       /30:51      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
18566      682           699      Covad Communications 
 7018      536          1426      AT&T 
 6197      531           695      BellSouth Network Solutions, 
 3356      495           895      Level 3 Communications, LLC 
 6198      402           563      BellSouth Network Solutions, 
  702      400           662      UUNET - Commercial IP service
27364      398           405      Armstrong Cable Services 
 7066      396           502      Virginia Polytechnic Institut
  701      366          1315      UUNET Technologies, Inc. 
 1239      354           938      Sprint 
 5668      323           370      Century Telephone 
20115      296           541      Charter Communications 
  690      295           332      Merit Network 
 4766      294           474      Korea Internet Exchange for "
 9583      279           438      Satyam Infoway Ltd.,
 9929      277           348      China Netcom Corp.
14824      250           275      NewSouth Communications Corp.
25844      244           244      Skadden, Arps, Slate, Meagher
 3320      243           296      Deutsche Telekom AG
13609      233           274      Choice One Communications Inc

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

   4:3        12:821      13:1        15:4        16:1        17:3      
  20:8        24:782      32:82       38:63       40:54       44:3      
  55:1        56:4        57:13       61:402      62:465      63:1829   
  64:1882     65:1944     66:2512     67:291      68:540      69:500    
  70:32       80:502      81:267      82:152      83:31      128:144    
 129:253     130:101     131:89      132:19      134:184     135:17     
 136:153     137:106     138:151     139:37      140:150     141:133    
 142:108     143:50      144:78      145:41      146:299     147:77     
 148:368     149:92      150:93      151:64      152:189     153:62     
 154:1       155:124     156:131     157:54      158:145     159:159    
 160:51      161:53      162:377     163:79      164:331     165:163    
 166:98      167:209     168:218     169:103     170:289     171:8      
 192:5521    193:2656    194:2028    195:1351    196:538     198:3648   
 199:3021    200:3252    201:8       202:4547    203:5456    204:2986   
 205:1970    206:2266    207:2484    208:2290    209:2846    210:1366   
 211:521     212:960     213:1158    214:35      215:27      216:3353   
 217:893     218:169     219:100     220:209     221:30      222:23     


End of report



More information about the Rtma mailing list