Weekly Routing Table Report

Routing Analysis cscora at dev.apnic.net
Thu Sep 20 14:10:55 EDT 2001


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   21 Sep, 2001

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

BGP routing table entries examined:                            107292
Origin ASes present in the Internet Routing Table:              11683
Origin ASes announcing only one prefix:                          4306
Transit ASes present in the Internet Routing Table:              1506
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    23
Illegal AS announcements present in the Routing Table:             83
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:    14
Number of addresses announced to Internet:                 1220327874
    Equivalent to 72 /8s, 188 /16s and 185 /24s
    Percentage of available address space announced:             32.9
    Percentage of allocated address space announced:             63.4
    Percentage of available address space allocated:             51.9
Total number of prefixes smaller than registry allocations:     73062

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

Prefixes being announced by APNIC Region ASes:                  16244
Prefixes being announced from the APNIC address blocks:         14648
APNIC Region origin ASes present in the Internet Routing Table:  1372
APNIC Region origin ASes announcing only one prefix:              463
APNIC Region transit ASes present in the Internet Routing Table:  228
Average APNIC Region AS path length visible:                      5.1
    Max APNIC Region AS path length visible:                       15
Number of APNIC addresses announced to Internet:             80353253
    Equivalent to 4 /8s, 202 /16s and 23 /24s
    Percentage of available APNIC address space announced:       79.0

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

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

Prefixes being announced by ARIN Region ASes:                   73531
Prefixes being announced from the ARIN address blocks:          52976
ARIN Region origin ASes present in the Internet Routing Table:   7020
ARIN Region origin ASes announcing only one prefix:              2100
ARIN Region transit ASes present in the Internet Routing Table:   698
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        19
Number of ARIN addresses announced to Internet:             209398865
    Equivalent to 12 /8s, 123 /16s and 44 /24s
    Percentage of available ARIN address space announced:        78.0

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 - 22527
ARIN Address Blocks    24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                   17513
Prefixes being announced from the RIPE address blocks:          13863
RIPE Region origin ASes present in the Internet Routing Table:   3312
RIPE Region origin ASes announcing only one prefix:              1743
RIPE Region transit ASes present in the Internet Routing Table:   580
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        23
Number of RIPE addresses announced to Internet:             107384727
    Equivalent to 6 /8s, 102 /16s and 143 /24s
    Percentage of available RIPE address space announced:        71.1

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

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

  ASN   No of nets  /20 equiv  Description
 1221     1608       1314       Telstra Pty Ltd
 2764      420        377       connect.com.au pty ltd
  703      418        375       UUNET Technologies, Inc. 
 2907      367       1831       SINET Japan
 4755      287        158       Videsh Sanchar Nigam Ltd. Aut
 7474      241        274       Optus Communications Pty Ltd
 4134      238       1800       Data Communications Bureau
 7539      211        199       TANet2, sponsored by NSC, TAI
 4740      187         23       OzEmail ISP
 4766      178       1336       Korea Internet Exchange for "
 9443      150         50       Primus Telecommunications
17557      130          9       Pakistan Telecom
 4786      127         17       NetConnect Communications Pty
 7545      125         23       TPG Internet Pty Ltd
 4763      119         69       Telstra New Zealand
 9768      119        362       Korea Telecom
 9583      117         60       Satyam Infoway Ltd.,
 4713      116        884       NTT Communications Corporatio
17561      116        167       Internet service provision to
 7586      111         17       Paradox Digital Pty Ltd

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

  ASN   No of nets  /20 equiv  Description
  702      881       1965       UUNET Technologies, Inc. 
 3301      441        919       TeliaNet Sweden
 1257      280        530       SWIPnet Swedish IP Network
  680      237       2308       DFN-IP service G-WiN
 3215      228        515       France Telecom / &Equant
 5515      192        687       Sonera Finland Autonomous Sys
 3320      186       1940       Deutsche Telekom AG
  786      185       1890       The JANET IP Service
15870      179         11       Global Center Frankfurt
 8708      156         16       Romania Data Systems S.A.
 1270      146        734       UUNET Germany
15878      138         12       Global Center Paris
  719      137        288       LANLINK autonomous system
 5400      137         64       Concert European Core Network
 3303      131        560       Swisscom Ltd
 2856      126        774       BTnet UK Regional network
 5549      126         67       Nextra Deutschland GmbH + Co.
  517      116        270       KPNQwest Germany GmbH
 1267      104       1990       Infostrada S.p.A.
12302      100          6       MobiFon S.A.

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

  ASN   No of nets  /20 equiv  Description
  701     2257       8309       UUNET Technologies, Inc. 
 7018     1055       7180       AT&T 
 3908      922        722       Supernet, Inc. 
    1      871       8638       BBN Planet 
 7046      801        989       UUNET Technologies, Inc. 
 1239      731       3326       Sprint 
 3967      602        473       Exodus Communication 
  209      537       2248       Qwest 
  690      502         80       Merit Network 
 2914      499       2240       Verio, Inc. 
 4293      466        113       Cable & Wireless USA 
 3561      407       2325       Cable & Wireless USA 
 2548      370        985       Business Internet, Inc. 
 3549      370        836       Global Crossing 
 2149      368        279       Performance Systems, Inc. 
  577      361        635       Bell Advanced Communications 
 4323      361        360       Time Warner Communications, I
 2048      360        182       State of Louisiana 
 3741      352        776       The Internet Solution 
  705      341         55       UUNET Technologies, Inc. 

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  Description
  701     2257       8309       UUNET Technologies, Inc. 
 1221     1608       1314       Telstra Pty Ltd
 7018     1055       7180       AT&T 
 3908      922        722       Supernet, Inc. 
  702      881       1965       UUNET Technologies, Inc. 
    1      871       8638       BBN Planet 
 7046      801        989       UUNET Technologies, Inc. 
 1239      731       3326       Sprint 
 3967      602        473       Exodus Communication 
  209      537       2248       Qwest 
  690      502         80       Merit Network 
 2914      499       2240       Verio, Inc. 
 4293      466        113       Cable & Wireless USA 
 3301      441        919       TeliaNet Sweden
 2764      420        377       connect.com.au pty ltd
  703      418        375       UUNET Technologies, Inc. 
 3561      407       2325       Cable & Wireless USA 
 2548      370        985       Business Internet, Inc. 
 3549      370        836       Global Crossing 
 2149      368        279       Performance Systems, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
22130   UNALLOCATED   4.18.195.0/24         3561       Cable & Wireless USA
22242   UNALLOCATED   12.14.215.0/24        7222       Southwestern Bell In
21048   UNALLOCATED   62.16.96.0/19         3216       SOVAM Teleport, Mosc
65534   PRIVATE       62.23.176.0/24        6675       Colt Telecommunicati
65534   PRIVATE       62.23.177.0/24        6675       Colt Telecommunicati
22299   UNALLOCATED   63.81.99.0/24          701       UUNET Technologies, 
22299   UNALLOCATED   63.124.154.0/24        701       UUNET Technologies, 
 6971   UNALLOCATED   64.42.0.0/18          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.0.0/17          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.40.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.48.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.60.0/22         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.72.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.108.0/22        2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.112.0/20        2914       Verio, Inc. 
 6971   UNALLOCATED   64.87.64.0/19         2516       Kokusai Denshin Denw
  578   UNALLOCATED   64.230.242.16/28       577       Bell Advanced Commun
22091   UNALLOCATED   65.113.20.0/24         209       Qwest 
22195   UNALLOCATED   65.116.137.0/24        209       Qwest 
22299   UNALLOCATED   65.161.22.0/24         701       UUNET Technologies, 
22299   UNALLOCATED   65.161.22.0/23         701       UUNET Technologies, 
22299   UNALLOCATED   65.161.23.0/24         701       UUNET Technologies, 
22326   UNALLOCATED   65.170.47.0/24         209       Qwest 
22313   UNALLOCATED   66.96.52.0/22         7927       Global One Venezuela
21127   UNALLOCATED   80.89.128.0/20       20485       JSC Transtelecom
21127   UNALLOCATED   80.89.130.0/23       20485       JSC Transtelecom
21127   UNALLOCATED   80.89.132.0/22       20485       JSC Transtelecom
21127   UNALLOCATED   80.89.137.0/24       20485       JSC Transtelecom
21127   UNALLOCATED   80.89.138.0/23       20485       JSC Transtelecom
21127   UNALLOCATED   80.89.143.0/24       20485       JSC Transtelecom
 2027   UNALLOCATED   150.185.128.0/18      8143       Publicom Corp. 
 6971   UNALLOCATED   192.103.229.0/24      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.230.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.232.0/22      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.236.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   192.103.237.0/24      2516       Kokusai Denshin Denw
 1877   UNALLOCATED   192.108.201.0/24      1880       Stupi, house man's p
65460   PRIVATE       192.231.11.0/24       7018       AT&T 
22313   UNALLOCATED   196.27.8.0/22         7927       Global One Venezuela
22284   UNALLOCATED   198.183.146.0/23       701       UUNET Technologies, 
22284   UNALLOCATED   198.246.64.0/19        701       UUNET Technologies, 
22301   UNALLOCATED   199.171.142.0/24      6517       Yipes Communications
22284   UNALLOCATED   199.244.155.0/24       701       UUNET Technologies, 
22284   UNALLOCATED   199.244.156.0/24       701       UUNET Technologies, 
 6971   UNALLOCATED   199.249.223.0/24      2516       Kokusai Denshin Denw
22313   UNALLOCATED   200.47.150.0/24       7927       Global One Venezuela
22303   UNALLOCATED   204.62.219.0/24       2914       Verio, Inc. 
22303   UNALLOCATED   204.62.220.0/24       2914       Verio, Inc. 
22303   UNALLOCATED   204.62.221.0/24       2914       Verio, Inc. 
22303   UNALLOCATED   204.62.222.0/24       2914       Verio, Inc. 
22130   UNALLOCATED   205.180.228.0/24      3561       Cable & Wireless USA
 6971   UNALLOCATED   206.58.248.0/22       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   206.58.248.0/21       2516       Kokusai Denshin Denw
 6971   UNALLOCATED   206.58.252.0/23       2914       Verio, Inc. 
 6971   UNALLOCATED   206.58.254.0/23       2914       Verio, Inc. 
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
22257   UNALLOCATED   207.176.8.0/21        3491       CAIS Internet 
 6971   UNALLOCATED   207.189.143.0/24      2516       Kokusai Denshin Denw
22179   UNALLOCATED   207.190.35.0/24       3549       Global Crossing 
22326   UNALLOCATED   208.44.54.0/24        1239       Sprint 
22091   UNALLOCATED   208.46.178.0/24        209       Qwest 
22130   UNALLOCATED   208.131.122.0/24      3561       Cable & Wireless USA
22299   UNALLOCATED   208.249.71.0/24        701       UUNET Technologies, 
22195   UNALLOCATED   208.252.244.0/24       209       Qwest 
22259   UNALLOCATED   208.254.175.0/24       701       UUNET Technologies, 
65515   PRIVATE       212.110.142.0/24      5593       CRIS-AS
21040   UNALLOCATED   213.196.128.0/18       702       UUNET Technologies, 
22313   UNALLOCATED   216.72.155.0/24       7927       Global One Venezuela
 6971   UNALLOCATED   216.105.192.0/20      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.121.224.0/19      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.192.0/21      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.192.0/18      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.200.0/23      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.202.0/23      2914       Verio, Inc. 
 6971   UNALLOCATED   216.174.204.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.174.208.0/20      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.174.232.0/21      2914       Verio, Inc. 
 6971   UNALLOCATED   216.174.240.0/22      2914       Verio, Inc. 
22326   UNALLOCATED   216.207.88.0/24       1239       Sprint 
22326   UNALLOCATED   216.207.89.0/24       1239       Sprint 
 6971   UNALLOCATED   216.210.128.0/18      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/17      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.229.96.0/20       2516       Kokusai Denshin Denw

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

Network            Origin AS  Description
128.65.0.0/16         3463     ACES Research Inc 
132.0.0.0/10           568     DISO-UNRRA 
134.137.0.0/16         400     Headquarters Standard Systems
135.0.0.0/13         10455     Lucent Technologies 
137.0.0.0/13           568     DISO-UNRRA 
138.94.0.0/16            1     BBN Planet 
144.7.0.0/16           701     UUNET Technologies, Inc. 
153.34.0.0/15          701     UUNET Technologies, Inc. 
153.36.0.0/14          701     UUNET Technologies, Inc. 
154.150.0.0/16        6494     IDCI 
158.0.0.0/13           568     DISO-UNRRA 
164.233.0.0/16        6020     DISA NETWORK SERVICES 
164.235.0.0/16        6025     US DOD NIC Unregistered
201.115.100.0/24      7018     AT&T 

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:17       /9:5       /10:6       /11:12      /12:33      
/13:85      /14:228     /15:383     /16:6972    /17:1231    /18:2347    
/19:6950    /20:5822    /21:4773    /22:7029    /23:8963    /24:60843   
/25:318     /26:341     /27:259     /28:257     /29:156     /30:185     
/31:1       /32:76      

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

  ASN   No of nets  Total ann.   Description
 1221     1459          1608      Telstra Pty Ltd
  701     1422          2257      UUNET Technologies, Inc. 
 3908      771           922      Supernet, Inc. 
 7046      629           801      UUNET Technologies, Inc. 
  702      593           881      UUNET Technologies, Inc. 
 7018      553          1055      AT&T 
  690      499           502      Merit Network 
 4293      449           466      Cable & Wireless USA 
 3967      422           602      Exodus Communication 
    1      414           871      BBN Planet 
 1239      407           731      Sprint 
 2764      373           420      connect.com.au pty ltd
  209      371           537      Qwest 
  703      347           418      UUNET Technologies, Inc. 
 2048      308           360      State of Louisiana 
 6995      308           320      Bell Atlantic Internet Soluti
 4323      303           361      Time Warner Communications, I
11371      300           313      Rhythms NetConnections 
 5106      298           316      Ameritech Advanced Data Servi
  705      297           341      UUNET Technologies, Inc. 

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

   4:6         9:1        12:407      13:10       15:1        17:5      
  20:1        24:801      25:1        26:1        32:72       33:6      
  38:10       43:3        44:2        53:2        55:1        57:15     
  61:77       62:141      63:1929     64:1357     65:712      66:480    
  67:2        80:51      128:49      129:107     130:18      131:42     
 132:11      133:2       134:139     135:10      136:21      137:98     
 138:206     139:45      140:197     141:199     142:56      143:39     
 144:145     145:13      146:147     147:129     148:130     149:89     
 150:37      151:323     152:367     153:43      154:16      155:83     
 156:89      157:73      158:74      159:67      160:48      161:91     
 162:65      163:145     164:95      165:103     166:188     167:143    
 168:117     169:39      170:291     171:2       192:5426    193:1953   
 194:2022    195:830     196:450     198:3638    199:3332    200:2505   
 201:1       202:2769    203:4574    204:3419    205:2199    206:2902   
 207:2579    208:3124    209:3132    210:550     211:136     212:859    
 213:506     214:8       215:13      216:3042    217:387     218:2      


End of report




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