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Weekly Routing Table Report



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   02 Nov, 2001

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

BGP routing table entries examined:                            107928
Origin ASes present in the Internet Routing Table:              11854
Origin ASes announcing only one prefix:                          4404
Transit ASes present in the Internet Routing Table:              1572
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:            138
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:                 1308006313
    Equivalent to 77 /8s, 246 /16s and 151 /24s
    Percentage of available address space announced:             35.3
    Percentage of allocated address space announced:             67.4
    Percentage of available address space allocated:             52.4
Total number of prefixes smaller than registry allocations:     73128

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

Prefixes being announced by APNIC Region ASes:                  16788
Prefixes being announced from the APNIC address blocks:         15282
APNIC Region origin ASes present in the Internet Routing Table:  1383
APNIC Region origin ASes announcing only one prefix:              450
APNIC Region transit ASes present in the Internet Routing Table:  238
Average APNIC Region AS path length visible:                      5.2
    Max APNIC Region AS path length visible:                       17
Number of APNIC addresses announced to Internet:             88033909
    Equivalent to 5 /8s, 63 /16s and 74 /24s
    Percentage of available APNIC address space announced:       74.3

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

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

Prefixes being announced by ARIN Region ASes:                   73139
Prefixes being announced from the ARIN address blocks:          52163
ARIN Region origin ASes present in the Internet Routing Table:   7108
ARIN Region origin ASes announcing only one prefix:              2141
ARIN Region transit ASes present in the Internet Routing Table:   739
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             235950737
    Equivalent to 14 /8s, 16 /16s and 82 /24s
    Percentage of available ARIN address space announced:        87.9

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
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:                   17999
Prefixes being announced from the RIPE address blocks:          14426
RIPE Region origin ASes present in the Internet Routing Table:   3413
RIPE Region origin ASes announcing only one prefix:              1813
RIPE Region transit ASes present in the Internet Routing Table:   599
Average RIPE Region AS path length visible:                       5.9
    Max RIPE Region AS path length visible:                        15
Number of RIPE addresses announced to Internet:             142851711
    Equivalent to 8 /8s, 131 /16s and 190 /24s
    Percentage of available RIPE address space announced:        94.6

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
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     1551       1304       Telstra Pty Ltd
 2764      408        359       connect.com.au pty ltd
  703      382        362       UUNET Technologies, Inc. 
 2907      374       1865       SINET Japan
 4755      300        162       Videsh Sanchar Nigam Ltd. Aut
 7474      295        275       Optus Communications Pty Ltd
 4134      253       1902       Data Communications Bureau
 4766      182       1415       Korea Internet Exchange for "
 4740      167         26       OzEmail ISP
 9443      163         53       Primus Telecommunications
17676      162       1957       XTAGE CORPORATION
 1659      159       1221       Taiwan Academic Network (TANe
 7539      153        159       TANet2, sponsored by NSC, TAI
17557      145          9       Pakistan Telecom
 2521      138        171       PSINet Japan
 4812      137        305       China Telecom (Group)
 9768      128        362       Korea Telecom
 9583      126         61       Satyam Infoway Ltd.,
 4786      123         14       NetConnect Communications Pty
 4763      121         69       Telstra New Zealand

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

  ASN   No of nets  /20 equiv  Description
  702      942       1945       UUNET Technologies, Inc. 
 3301      434        950       TeliaNet Sweden
 1257      272        516       SWIPnet Swedish IP Network
  680      239       2308       DFN-IP service G-WiN
 3215      234        539       France Telecom / &Equant
 5515      195        688       Sonera Finland Autonomous Sys
 3320      193       1957       Deutsche Telekom AG
  786      184       1890       The JANET IP Service
 8708      161         16       Romania Data Systems S.A.
 5495      156          3       University Network
 5400      139         66       Concert European Core Network
15870      139         10       Global Center Frankfurt
  719      133        289       LANLINK autonomous system
 3303      131        560       Swisscom Ltd
 2856      130        776       BTnet UK Regional network
 5549      124         82       Nextra Deutschland GmbH + Co.
 1270      119        705       UUNET Germany
  517      111        251       KPNQwest Germany GmbH
12302      110          7       MobiFon S.A.
15878      110          9       Global Center Paris

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

  ASN   No of nets  /20 equiv  Description
  701     2278       9038       UUNET Technologies, Inc. 
 3908     1181       1694       Supernet, Inc. 
 7018     1096       7324       AT&T 
    1      846       8555       BBN Planet 
 7046      838       1022       UUNET Technologies, Inc. 
 1239      709       3380       Sprint 
 3967      667        453       Exodus Communication 
  209      578       2196       Qwest 
  690      507         73       Merit Network 
 2914      477       2269       Verio, Inc. 
 4293      451        113       Cable & Wireless USA 
 2149      426        330       Performance Systems, Inc. 
 4323      426        386       Time Warner Communications, I
 3561      380       2298       Cable & Wireless USA 
 4151      362       1254       USDA 
  705      359         68       UUNET Technologies, Inc. 
 3741      351        766       The Internet Solution 
  577      349        636       Bell Advanced Communications 
15290      342        339       AT&T Canada IES 
 7132      334        466       Southwestern Bell Internet Se

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

  ASN   No of nets  /20 equiv  Description
  701     2278       9038       UUNET Technologies, Inc. 
 1221     1551       1304       Telstra Pty Ltd
 3908     1181       1694       Supernet, Inc. 
 7018     1096       7324       AT&T 
  702      942       1945       UUNET Technologies, Inc. 
    1      846       8555       BBN Planet 
 7046      838       1022       UUNET Technologies, Inc. 
 1239      709       3380       Sprint 
 3967      667        453       Exodus Communication 
  209      578       2196       Qwest 
  690      507         73       Merit Network 
 2914      477       2269       Verio, Inc. 
 4293      451        113       Cable & Wireless USA 
 3301      434        950       TeliaNet Sweden
 2149      426        330       Performance Systems, Inc. 
 4323      426        386       Time Warner Communications, I
 2764      408        359       connect.com.au pty ltd
  703      382        362       UUNET Technologies, Inc. 
 3561      380       2298       Cable & Wireless USA 
 2907      374       1865       SINET Japan

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

Bad AS  Designation  Network              Transit AS  Description
22190   UNALLOCATED   12.24.96.0/24         7018       AT&T 
22396   UNALLOCATED   12.148.245.0/24       7018       AT&T 
22535   UNALLOCATED   12.150.242.0/24       6388       bellsouth.net, inc. 
65175   PRIVATE       24.169.224.0/20      11060       Time Warner Cable  N
 6971   UNALLOCATED   64.42.0.0/18          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.0.0/17          2516       Kokusai Denshin Denw
 6971   UNALLOCATED   64.42.16.0/20         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.32.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.40.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.48.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.56.0/22         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.60.0/22         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.64.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.72.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.80.0/21         2914       Verio, Inc. 
 6971   UNALLOCATED   64.42.104.0/22        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
22141   UNALLOCATED   64.113.208.0/23      19029       New Edge Networks 
22151   UNALLOCATED   65.115.37.0/24        5696       WINSTAR 
21963   UNALLOCATED   65.117.88.0/21        3908       Supernet, Inc. 
17970   UNALLOCATED   65.197.148.0/22        701       UUNET Technologies, 
22557   UNALLOCATED   65.207.0.0/24          701       UUNET Technologies, 
22141   UNALLOCATED   65.208.24.0/22       19029       New Edge Networks 
22446   UNALLOCATED   65.211.132.0/24        701       UUNET Technologies, 
22446   UNALLOCATED   65.211.132.0/23        701       UUNET Technologies, 
22293   UNALLOCATED   65.213.118.0/24        701       UUNET Technologies, 
22196   UNALLOCATED   66.54.252.0/24        6517       Yipes Communications
22196   UNALLOCATED   66.54.253.0/24        6517       Yipes Communications
22196   UNALLOCATED   66.54.254.0/24        6517       Yipes Communications
22196   UNALLOCATED   66.54.255.0/24        6517       Yipes Communications
 6971   UNALLOCATED   66.182.0.0/18         2516       Kokusai Denshin Denw
21225   UNALLOCATED   80.71.32.0/20        15835       Moscow Network Acces
21260   UNALLOCATED   80.87.128.0/20        8426       ClaraNET
21279   UNALLOCATED   80.240.128.0/20       1755       Ebone Transit Core
21307   UNALLOCATED   80.241.224.0/20      15589       Edisontel S.p.A.
21314   UNALLOCATED   80.242.224.0/20       8582       Support Net bv
22373   UNALLOCATED   138.113.0.0/16         701       UUNET Technologies, 
 2027   UNALLOCATED   150.185.128.0/18      8143       Publicom Corp. 
22149   UNALLOCATED   157.245.0.0/20        7018       AT&T 
22466   UNALLOCATED   192.43.219.0/24        174       PSINet Inc. 
 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
22388   UNALLOCATED   192.203.116.0/24     11537       University Corporati
22466   UNALLOCATED   192.231.172.0/24       174       PSINet Inc. 
17926   UNALLOCATED   192.245.58.0/23       9740       Cable & Wireless Net
21227   UNALLOCATED   193.109.86.0/24       1257       SWIPnet Swedish IP N
21258   UNALLOCATED   193.109.92.0/24      12968       Crowley Data Poland,
21239   UNALLOCATED   193.109.126.0/24       702       UUNET Technologies, 
21312   UNALLOCATED   193.110.16.0/22       6846       UKRPACK.NET
21279   UNALLOCATED   194.6.165.0/24        1755       Ebone Transit Core
21279   UNALLOCATED   194.209.81.0/24       1755       Ebone Transit Core
21279   UNALLOCATED   195.65.102.0/24       1755       Ebone Transit Core
22466   UNALLOCATED   199.43.117.0/24        174       PSINet Inc. 
22466   UNALLOCATED   199.85.107.0/24        174       PSINet Inc. 
22466   UNALLOCATED   199.164.129.0/24       174       PSINet Inc. 
 6971   UNALLOCATED   199.164.144.0/24      2914       Verio, Inc. 
 6971   UNALLOCATED   199.249.223.0/24      2516       Kokusai Denshin Denw
22080   UNALLOCATED   200.81.94.0/23       13591       MetroRED Telecomunic
 4845   UNALLOCATED   202.165.143.0/24      3462       Data Communication B
65000   PRIVATE       203.21.200.0/24       1221       Telstra Pty Ltd
17970   UNALLOCATED   203.167.69.0/24       9658       Eastern Telecoms Phi
17970   UNALLOCATED   203.167.125.0/24      9658       Eastern Telecoms Phi
17970   UNALLOCATED   203.167.126.0/24      9658       Eastern Telecoms Phi
 6971   UNALLOCATED   204.69.206.0/24       2914       Verio, Inc. 
22482   UNALLOCATED   205.139.128.0/24     11855       InterNAP 
 6971   UNALLOCATED   205.163.58.0/24       2914       Verio, Inc. 
 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. 
22623   UNALLOCATED   206.208.154.0/24     15290       AT&T Canada IES 
 6971   UNALLOCATED   207.12.40.0/22        2914       Verio, Inc. 
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
22463   UNALLOCATED   207.41.203.0/24      21687       Hudson Valley DataNe
22535   UNALLOCATED   207.203.138.0/24      7018       AT&T 
22495   UNALLOCATED   208.0.121.0/24         701       UUNET Technologies, 
 6971   UNALLOCATED   208.1.124.0/23        2914       Verio, Inc. 
 6971   UNALLOCATED   208.1.200.0/21        2914       Verio, Inc. 
22463   UNALLOCATED   208.3.198.0/23       21687       Hudson Valley DataNe
22463   UNALLOCATED   208.28.232.0/24      21687       Hudson Valley DataNe
22463   UNALLOCATED   208.28.236.0/24      21687       Hudson Valley DataNe
22397   UNALLOCATED   208.236.202.0/24       174       PSINet Inc. 
22475   UNALLOCATED   208.253.52.0/23        174       PSINet Inc. 
22077   UNALLOCATED   209.2.76.0/22         1785       AppliedTheory Corpor
22367   UNALLOCATED   209.39.42.0/24        2914       Verio, Inc. 
17962   UNALLOCATED   211.148.192.0/19     10212       China Guangzhou Guan
21181   UNALLOCATED   213.9.194.0/24        8220       COLT Internet - Inte
21175   UNALLOCATED   213.177.160.0/21      5400       Concert European Cor
22164   UNALLOCATED   216.51.170.0/24       1239       Sprint 
22466   UNALLOCATED   216.57.6.0/23        15290       AT&T Canada IES 
22466   UNALLOCATED   216.57.12.0/23       15290       AT&T Canada IES 
22466   UNALLOCATED   216.57.20.0/22       15290       AT&T Canada IES 
22466   UNALLOCATED   216.57.56.0/22       15290       AT&T Canada IES 
 6971   UNALLOCATED   216.105.192.0/20      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.121.224.0/19      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.173.192.0/19      2914       Verio, Inc. 
 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   216.174.200.0/21      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   216.210.128.0/18      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.128.0/17      2516       Kokusai Denshin Denw
 6971   UNALLOCATED   216.210.140.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.160.0/21      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.176.0/21      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.184.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.200.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.216.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.220.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.224.0/21      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.232.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.236.0/22      2914       Verio, Inc. 
 6971   UNALLOCATED   216.210.240.0/20      2914       Verio, Inc. 
 6971   UNALLOCATED   216.229.96.0/20       2516       Kokusai Denshin Denw
21271   UNALLOCATED   217.64.96.0/20       11300       Lyman Brothers 
21271   UNALLOCATED   217.64.97.0/24       11300       Lyman Brothers 
21271   UNALLOCATED   217.64.98.0/24       11300       Lyman Brothers 
21271   UNALLOCATED   217.64.99.0/24       11300       Lyman Brothers 
21271   UNALLOCATED   217.64.100.0/24      11300       Lyman Brothers 
21271   UNALLOCATED   217.64.102.0/24      11300       Lyman Brothers 
21271   UNALLOCATED   217.64.103.0/24      11300       Lyman Brothers 
21271   UNALLOCATED   217.64.106.0/24      11300       Lyman Brothers 
21271   UNALLOCATED   217.64.108.0/24      11300       Lyman Brothers 
21294   UNALLOCATED   217.156.99.0/24       8338       Global One Romania A
 4837   UNALLOCATED   218.30.0.0/22         4134       Data Communications 
 4815   UNALLOCATED   218.30.4.0/22         4134       Data Communications 
 4816   UNALLOCATED   218.30.8.0/22         4134       Data Communications 
 4837   UNALLOCATED   218.30.16.0/24        4134       Data Communications 
 4815   UNALLOCATED   218.30.17.0/24        4134       Data Communications 
 4816   UNALLOCATED   218.30.18.0/24        4134       Data Communications 
17696   UNALLOCATED   218.40.160.0/19       4713       NTT Communications C

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

Network            Origin AS  Description
39.0.0.0/8            4554     Exchange Point Blocks 
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        /8:21       /9:5       /10:7       /11:12      /12:36      
/13:90      /14:221     /15:390     /16:7068    /17:1322    /18:2407    
/19:7033    /20:5956    /21:4763    /22:7095    /23:8973    /24:60808   
/25:305     /26:296     /27:285     /28:300     /29:162     /30:193     
/31:1       /32:179     

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

  ASN   No of nets  Total ann.   Description
  701     1467          2278      UUNET Technologies, Inc. 
 1221     1409          1551      Telstra Pty Ltd
 3908      896          1181      Supernet, Inc. 
 7046      664           838      UUNET Technologies, Inc. 
  702      639           942      UUNET Technologies, Inc. 
 7018      572          1096      AT&T 
  690      504           507      Merit Network 
 3967      495           667      Exodus Communication 
 4293      436           451      Cable & Wireless USA 
  209      408           578      Qwest 
    1      406           846      BBN Planet 
 1239      402           709      Sprint 
 4323      365           426      Time Warner Communications, I
 2764      363           408      connect.com.au pty ltd
 4151      318           362      USDA 
  703      313           382      UUNET Technologies, Inc. 
  705      305           359      UUNET Technologies, Inc. 
 2149      301           426      Performance Systems, Inc. 
11371      276           283      Rhythms NetConnections 
 7066      268           298      Virginia Polytechnic Institut

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

   4:5         9:1        12:417      13:10       15:1        17:5      
  20:1        24:819      25:1        26:1        32:75       38:13     
  43:2        44:1        47:2        52:1        53:2        57:12     
  61:106      62:154      63:1951     64:1121     65:870      66:473    
  67:2        80:81      128:58      129:113     130:23      131:40     
 132:13      133:2       134:132     135:8       136:93      137:108    
 138:153     139:51      140:172     141:60      142:64      143:39     
 144:146     145:11      146:231     147:129     148:221     149:85     
 150:42      151:190     152:383     153:51      154:8       155:84     
 156:94      157:110     158:71      159:70      160:46      161:52     
 162:73      163:131     164:123     165:121     166:207     167:158    
 168:121     169:45      170:299     171:2       192:5409    193:2025   
 194:2050    195:846     196:455     198:3792    199:3482    200:2401   
 201:1       202:2841    203:4524    204:3347    205:2133    206:2835   
 207:2578    208:2994    209:3032    210:538     211:169     212:897    
 213:530     214:9       215:14      216:2914    217:427     218:5      


End of report

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