[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at thyme.apnic.net
Sat May 8 04:05:51 EAT 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 08 May, 2004

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

BGP routing table entries examined:                            137631
    Prefixes after maximum aggregation:                         83480
    Unique aggregates announced to Internet:                    66521
Total ASes present in the Internet Routing Table:               17179
Origin-only ASes present in the Internet Routing Table:         14905
Origin ASes announcing only one prefix:                          6909
Transit ASes present in the Internet Routing Table:              2274
Transit-only ASes present in the Internet Routing Table:           77
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:              9
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from unallocated address space:           17
Number of addresses announced to Internet:                 1302144952
    Equivalent to 77 /8s, 157 /16s and 39 /24s
    Percentage of available address space announced:             35.1
    Percentage of allocated address space announced:             57.7
    Percentage of available address space allocated:             60.9
Total number of prefixes smaller than registry allocations:    100467

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

Prefixes being announced by APNIC Region ASes:                    26174
    Total APNIC prefixes after maximum aggregation:               13639
Prefixes being announced from the APNIC address blocks:           24488
    Unique aggregates announced from the APNIC address blocks:    13704
APNIC Region origin ASes present in the Internet Routing Table:    2048
APNIC Region origin ASes announcing only one prefix:                609
APNIC Region transit ASes present in the Internet Routing Table:    323
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              146339328
    Equivalent to 8 /8s, 184 /16s and 246 /24s
    Percentage of available APNIC address space announced:         66.8

APNIC AS Blocks        4608 - 4864, 7467 - 7722, 9216 - 10239
                       17408 - 18431, 23552 - 24575
APNIC Address Blocks   58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     79143
    Total ARIN prefixes after maximum aggregation:                48914
Prefixes being announced from the ARIN address blocks:            61132
    Unique aggregates announced from the ARIN address blocks:     21290
ARIN Region origin ASes present in the Internet Routing Table:     9155
ARIN Region origin ASes announcing only one prefix:                3257
ARIN Region transit ASes present in the Internet Routing Table:     899
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               222893344
    Equivalent to 13 /8s, 73 /16s and 21 /24s
    Percentage of available ARIN address space announced:          73.8

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:                     25320
    Total RIPE prefixes after maximum aggregation:                18039
Prefixes being announced from the RIPE address blocks:            22126
    Unique aggregates announced from the RIPE address blocks:     14602
RIPE Region origin ASes present in the Internet Routing Table:     5432
RIPE Region origin ASes announcing only one prefix:                2916
RIPE Region transit ASes present in the Internet Routing Table:     937
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               160343808
    Equivalent to 9 /8s, 142 /16s and 167 /24s
    Percentage of available RIPE address space announced:          56.2

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:                    5844
    Total LACNIC prefixes after maximum aggregation:               2215
Prefixes being announced from the LACNIC address blocks:           5496
    Unique aggregates announced from the LACNIC address blocks:    3424
LACNIC Region origin ASes present in the Internet Routing Table:    375
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:                       5.0
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              14763008
    Equivalent to 0 /8s, 225 /16s and 68 /24s
    Percentage of available LACNIC address space announced:        44.0

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

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

Prefixes being announced by AfriNIC Region ASes:                   1149
    Total AfriNIC prefixes after maximum aggregation:               673
Prefixes being announced from the AfriNIC address blocks:           763
    Unique aggregates announced from the AfriNIC address blocks:    569
AfriNIC Region origin ASes present in the Internet Routing Table:    91
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:                       15
Number of AfriNIC addresses announced to Internet:              1849600
    Equivalent to 0 /8s, 28 /16s and 57 /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      852       1091         618   Telstra Pty Ltd
 4134      769       3482         139   Data Communications Bureau
 4766      483       2901         259   Korea Internet Exchange for "
 9583      463         40          81   Satyam Infoway Ltd.,
 2907      354       1840         328   SINET Japan
 4755      354        125          50   Videsh Sanchar Nigam Ltd. Aut
 9443      353         69          78   Primus Telecommunications
 9929      344        155          31   China Netcom Corp.
17676      341       5084          33   XTAGE CORPORATION
  703      332        375         259   UUNET
17557      325         23         165   Pakistan Telecom
 2764      292        274         240   connect.com.au pty ltd
 7474      271        268         210   Optus Communications Pty Ltd
 9942      222         71         126   COMindico Australia
 9800      219        364          59   CHINA UNICOM
 4780      212        193          26   Digital United Inc.
 9498      190         31          45   BHARTI BT INTERNET LTD.
 4837      182       1683         105   chinanet IDC center beijing n
 9304      171        161          25   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     1456       6943        1012   AT&T 
  701     1318       8538         944   UUNET Technologies, Inc. 
 1239      930       3016         631   Sprint 
 3356      893      10951         684   Level 3 Communications, LLC 
  209      739       3469         502   Qwest 
 4323      718        561         199   Time Warner Communications, I
18566      701        192           8   Covad Communications 
 6197      697        517         265   BellSouth Network Solutions, 
 6198      568        372         210   BellSouth Network Solutions, 
20115      519        827         265   Charter Communications 
  852      513       1142         404   Telus Advanced Communications
 7066      505        208         274   Virginia Polytechnic Institut
 7843      500        643         112   Adelphia Corp. 
 7132      450       7847         333   Southwestern Bell Internet Se
 2386      425        579         231   AT&T Data Communications Serv
 6347      401        388          94   SAVVIS Communications Corpora
  705      398        145         273   UUNET Technologies, Inc. 
 4355      391        323         101   EarthLink, Inc. 
22909      390        844          26   Comcast Cable Corporation 
  376      380        343         112   Reseau Interordinateurs Scien

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      655       2038         549   UUNET - Commercial IP service
 3320      297       2477         237   Deutsche Telekom AG
 3301      270        968         260   TeliaNet Sweden
 8220      266        412         254   COLT Internet - International
  680      244       2025         239   DFN-IP service G-WiN
 1257      243        511         196   SWIPnet Swedish IP Network
13083      216         51           8   Mannesmann Datenverarbeitung 
 5515      201        779         143   Sonera Solution Autonomous Sy
 3246      198        450         195   Song Networks
  719      197        288         103   LANLINK autonomous system
 3215      177        837          70   France Telecom Transpac
25186      176        188         117   France Telecom Transpac's Tra
  786      175       1826         175   The JANET IP Service
 8708      174        111         163   Romania Data Systems S.A.
 5400      154        238         135   BT Ignite European Backbone
 6746      138         28         114   Dynamic Network Technologies,
 3269      134       1101          65   TELECOM ITALIA
 3303      130        606         130   Swisscom Ltd
12302      122         18          29   MobiFon S.A.
 1273      112        166          88   Cable & Wireless Deutschland 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      382        122          69   ImpSat
 8151      267        373         129   UniNet S.A. de C.V. 
11172      214         77          49   Servicios Alestra S.A de C.V 
16814      171         11           6   NSS, S.A. 
 6147      153         78          20   Telefonica Del Peru 
 7303      142         53          29   Telecom Argentina Stet-France
 6505      132         90          91   Global One Communicaoes Ltda 
 6503      130        219          89   AVANTEL, S.A. 
11556       88         73          25   Cable-Wireless Panama 
11992       88          9          28   Integrated Systems 
 6535       80          5          20   Chilesat Servicios  Empresari
15311       74         18          37   Telefonica Empresas 
 4270       71         18           9   Red de Interconexion Universi
14535       70          6           5   Techtel S.A. 
11311       69          7          19   Sinectis S.A. 
14259       69          4           5   GTD Internet S.A. 
14420       69          4          28   ANDINATEL S.A. 
 7080       64          4           1   Electronica y Comunicaciones 
10292       63          6          25   TELECOMMUNICATIONS OF JAMAICA
 5639       62          8           8   Telecommunications Services o

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 
24835       31         18           6   RAYA Telecom - Egypt
 9129       29          3           4   UUNET Kenya
 5713       26        125          24   Telkom SA Ltd 
16637       25          9          18   Johnnic e-Ventures 
 6713       24         38           9   Itissalat Al-MAGHRIB
12455       24          4           2   Jambonet Autonomous system
14988       24         16           1   Botswana Telecommunications C
 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 
 8346       13          6          12   SONATEL-AS Autonomous System
15808       13          1           5   Communication Solutions Ltd i
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       701         693      Covad Communications 
 4134       769         630      Data Communications Bureau
 4323       718         519      Time Warner Communications, I
 6197       697         432      BellSouth Network Solutions, 
 7843       500         388      Adelphia Corp. 
 9583       463         382      Satyam Infoway Ltd.,
  701      1318         374      UUNET Technologies, Inc. 
22909       390         364      Comcast Cable Corporation 
 5668       379         363      Century Telephone 
 6198       568         358      BellSouth Network Solutions, 
27364       364         345      Armstrong Cable Services 
22773       369         329      Cox Communications, Inc. Atla
 6140       382         313      ImpSat
 9929       344         313      China Netcom Corp.
17676       341         308      XTAGE CORPORATION
 6347       401         307      SAVVIS Communications Corpora
 4755       354         304      Videsh Sanchar Nigam Ltd. Aut
 1239       930         299      Sprint 
 4355       391         290      EarthLink, Inc. 
 9443       353         275      Primus Telecommunications

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

Bad AS  Designation  Network              Transit AS  Description
18416   UNALLOCATED   61.56.96.0/24         9919       New Century InfoComm
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
30306   UNALLOCATED   212.85.220.0/24       5713       Telkom SA Ltd 
30306   UNALLOCATED   212.85.220.0/22       5713       Telkom SA Ltd 
30306   UNALLOCATED   212.85.221.0/24       5713       Telkom SA Ltd 
30306   UNALLOCATED   212.85.222.0/24       5713       Telkom SA Ltd 
30306   UNALLOCATED   212.85.223.0/24       5713       Telkom SA Ltd 

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        /8:19       /9:3       /10:6       /11:16      /12:58      
/13:114     /14:294     /15:507     /16:7744    /17:1998    /18:3567    
/19:9361    /20:9805    /21:7074    /22:10120   /23:11445   /24:74792   
/25:210     /26:256     /27:141     /28:30      /29:5       /30:54      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
 7018     1091          1456      AT&T 
  701      994          1318      UUNET Technologies, Inc. 
 1221      758           852      Telstra Pty Ltd
18566      684           701      Covad Communications 
 1239      664           930      Sprint 
 3356      650           893      Level 3 Communications, LLC 
 6197      585           697      BellSouth Network Solutions, 
 4323      504           718      Time Warner Communications, I
  209      490           739      Qwest 
 7066      477           505      Virginia Polytechnic Institut
 6198      458           568      BellSouth Network Solutions, 
 9583      450           463      Satyam Infoway Ltd.,
  702      435           655      UUNET - Commercial IP service
 4766      396           483      Korea Internet Exchange for "
 5668      360           379      Century Telephone 
 6140      357           382      ImpSat
  705      352           398      UUNET Technologies, Inc. 
  852      352           513      Telus Advanced Communications
27364      352           364      Armstrong Cable Services 
 2386      346           425      AT&T Data Communications Serv

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

   4:3        12:817      13:1        15:4        16:1        17:3      
  20:8        24:721      32:96       38:66       40:54       44:3      
  55:1        56:4        57:13       61:408      62:491      63:1844   
  64:1862     65:1983     66:2509     67:308      68:511      69:526    
  70:64       80:506      81:282      82:169      83:57      128:150    
 129:205     130:77      131:89      132:18      133:2       134:184    
 135:17      136:188     137:104     138:149     139:39      140:154    
 141:134     142:113     143:52      144:90      145:41      146:292    
 147:77      148:370     149:113     150:93      151:64      152:184    
 153:62      154:1       155:123     156:58      157:54      158:144    
 159:147     160:48      161:53      162:380     163:77      164:333    
 165:160     166:99      167:218     168:220     169:105     170:286    
 171:8       192:5533    193:2689    194:2030    195:1372    196:540    
 198:3644    199:3030    200:3289    201:8       202:4536    203:5523   
 204:2997    205:1973    206:2258    207:2488    208:2279    209:2837   
 210:1382    211:515     212:954     213:1139    214:37      215:28     
 216:3377    217:908     218:169     219:99      220:212     221:28     
 222:28     

End of report


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