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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 24 Jan 2009 04:16:04 +1000 (EST)

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 () lists apnic net

For historical data, please see http://thyme.apnic.net.

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

Routing Table Report   04:00 +10GMT Sat 24 Jan, 2009

Report Website:     http://thyme.apnic.net
Detailed Analysis:  http://thyme.apnic.net/current/

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

BGP routing table entries examined:                              278634
    Prefixes after maximum aggregation:                          132262
    Deaggregation factor:                                          2.11
    Unique aggregates announced to Internet:                     135421
Total ASes present in the Internet Routing Table:                 30368
    Prefixes per ASN:                                              9.18
Origin-only ASes present in the Internet Routing Table:           26408
Origin ASes announcing only one prefix:                           12861
Transit ASes present in the Internet Routing Table:                3960
Transit-only ASes present in the Internet Routing Table:             99
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      21
    Max AS path prepend of ASN (12445)                               18
Prefixes from unregistered ASNs in the Routing Table:               529
    Unregistered ASNs in the Routing Table:                         182
Number of 32-bit ASNs allocated by the RIRs:                         78
Prefixes from 32-bit ASNs in the Routing Table:                      13
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            273
Number of addresses announced to Internet:                   1986107424
    Equivalent to 118 /8s, 97 /16s and 152 /24s
    Percentage of available address space announced:               53.6
    Percentage of allocated address space announced:               63.3
    Percentage of available address space allocated:               84.6
    Percentage of address space in use by end-sites:               75.4
Total number of prefixes smaller than registry allocations:      137044

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

Prefixes being announced by APNIC Region ASes:                    64288
    Total APNIC prefixes after maximum aggregation:               22759
    APNIC Deaggregation factor:                                    2.82
Prefixes being announced from the APNIC address blocks:           61154
    Unique aggregates announced from the APNIC address blocks:    26988
APNIC Region origin ASes present in the Internet Routing Table:    3502
    APNIC Prefixes per ASN:                                       17.46
APNIC Region origin ASes announcing only one prefix:                957
APNIC Region transit ASes present in the Internet Routing Table:    540
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              395679136
    Equivalent to 23 /8s, 149 /16s and 149 /24s
    Percentage of available APNIC address space announced:         78.6

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks    58/8,  59/8,  60/8,  61/8, 110/8, 111/8, 112/8,
                       113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8,
                       120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8,
                       202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8,
                       221/8, 222/8,

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

Prefixes being announced by ARIN Region ASes:                    123881
    Total ARIN prefixes after maximum aggregation:                65090
    ARIN Deaggregation factor:                                     1.90
Prefixes being announced from the ARIN address blocks:            93335
    Unique aggregates announced from the ARIN address blocks:     35568
ARIN Region origin ASes present in the Internet Routing Table:    12728
    ARIN Prefixes per ASN:                                         7.33
ARIN Region origin ASes announcing only one prefix:                4900
ARIN Region transit ASes present in the Internet Routing Table:    1226
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          20
Number of ARIN addresses announced to Internet:               407062688
    Equivalent to 24 /8s, 67 /16s and 72 /24s
    Percentage of available ARIN address space announced:          78.3

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  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, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
ARIN Address Blocks     24/8,  63/8,  64/8,  65/8,  66/8,  67/8,  68/8,
                        69/8,  70/8,  71/8,  72/8,  73/8,  74/8,  75/8,
                        76/8,  96/8,  97/8,  98/8,  99/8, 108/8, 173/8,
                       174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
                       208/8, 209/8, 216/8,

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

Prefixes being announced by RIPE Region ASes:                     62615
    Total RIPE prefixes after maximum aggregation:                36968
    RIPE Deaggregation factor:                                     1.69
Prefixes being announced from the RIPE address blocks:            57543
    Unique aggregates announced from the RIPE address blocks:     38357
RIPE Region origin ASes present in the Internet Routing Table:    12537
    RIPE Prefixes per ASN:                                         4.59
RIPE Region origin ASes announcing only one prefix:                6580
RIPE Region transit ASes present in the Internet Routing Table:    1911
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               386691168
    Equivalent to 23 /8s, 12 /16s and 112 /24s
    Percentage of available RIPE address space announced:          88.6

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-49151
RIPE Address Blocks     62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 193/8,
                       194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   22988
    Total LACNIC prefixes after maximum aggregation:               5665
    LACNIC Deaggregation factor:                                   4.06
Prefixes being announced from the LACNIC address blocks:          21227
    Unique aggregates announced from the LACNIC address blocks:   11724
LACNIC Region origin ASes present in the Internet Routing Table:   1050
    LACNIC Prefixes per ASN:                                      20.22
LACNIC Region origin ASes announcing only one prefix:               334
LACNIC Region transit ASes present in the Internet Routing Table:   175
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        17
Number of LACNIC addresses announced to Internet:              60435456
    Equivalent to 3 /8s, 154 /16s and 44 /24s
    Percentage of available LACNIC address space announced:        60.0

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  186/8, 187/8, 189/8, 190/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                   4365
    Total AfriNIC prefixes after maximum aggregation:              1368
    AfriNIC Deaggregation factor:                                  3.19
Prefixes being announced from the AfriNIC address blocks:          5252
    Unique aggregates announced from the AfriNIC address blocks:   2180
AfriNIC Region origin ASes present in the Internet Routing Table:   280
    AfriNIC Prefixes per ASN:                                     18.76
AfriNIC Region origin ASes announcing only one prefix:               90
AfriNIC Region transit ASes present in the Internet Routing Table:   58
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             13112576
    Equivalent to 0 /8s, 200 /16s and 21 /24s
    Percentage of available AfriNIC address space announced:       26.1

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks  41/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     1660       6411         376   Korea Telecom (KIX)
17488     1504        107          96   Hathway IP Over Cable Interne
 4755     1193        428         175   TATA Communications formerly 
 9583     1156        130         110   Sify Limited
 4134      902      16063         365   CHINANET-BACKBONE
18101      770        174          25   Reliance Infocom Ltd Internet
 4780      720        357          64   Digital United Inc.
 9498      680        297          52   BHARTI BT INTERNET LTD.
 7545      675        152          81   TPG Internet Pty Ltd
24560      660        224         181   Bharti Airtel Ltd.

Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     4381       3435         344   bellsouth.net, inc. 
  209     2833       4032         617   Qwest 
20115     2033       1465         742   Charter Communications 
 1785     1793        735         158   PaeTec Communications, Inc.
 4323     1621       1081         373   Time Warner Telecom
 2386     1575        714         895   AT&T Data Communications Serv
 7018     1444       5876        1002   AT&T WorldNet Services
11492     1216        192          12   Cable One 
 6478     1196        289         511   AT&T Worldnet Services 
 3356     1131      10997         441   Level 3 Communications, LLC 

Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8452      922        188           7   TEDATA
 3292      441       1765         386   TDC Tele Danmark
30890      435         88         199   SC Kappa Invexim SRL
12479      393        578           6   Uni2 Autonomous System
 3301      336       1669         302   TeliaNet Sweden
 8866      333        109          22   Bulgarian Telecommunication C
 3320      332       7065         281   Deutsche Telekom AG
 3215      330       2897          99   France Telecom Transpac
29049      324         26           3   AzerSat LLC.
35805      324         27           7   United Telecom of Georgia

Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1479       2834         230   UniNet S.A. de C.V. 
10620      725        153          77   TVCABLE BOGOTA 
11830      681        299           9   Instituto Costarricense de El
22047      563        302          14   VTR PUNTO NET S.A. 
 7303      509        253          78   Telecom Argentina Stet-France
 6471      437         94          41   ENTEL CHILE S.A. 
16814      426         27          10   NSS, S.A. 
11172      408        118          74   Servicios Alestra S.A de C.V 
 7738      397        794          28   Telecomunicacoes da Bahia S.A
28573      376        505          22   NET Servicos de Comunicao S.A

Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
24863      594         72          40   LINKdotNET AS number
 3741      269        857         227   The Internet Solution 
20858      262         34           3   This AS will be used to conne
 2018      242        215         142   Tertiary Education Network 
33783      150         10           8   EEPAD TISP TELECOM & INTERNET
 6713      144        135          11   Itissalat Al-MAGHRIB
29571      128         15           8   Ci Telecom Autonomous system 
 5536      120          8          17   Internet Egypt Network
33776      118          6           3   Starcomms Nigeria Limited
 5713      117        555          66   Telkom SA Ltd 

Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     4381       3435         344   bellsouth.net, inc. 
  209     2833       4032         617   Qwest 
20115     2033       1465         742   Charter Communications 
 1785     1793        735         158   PaeTec Communications, Inc.
 4766     1660       6411         376   Korea Telecom (KIX)
 4323     1621       1081         373   Time Warner Telecom
 2386     1575        714         895   AT&T Data Communications Serv
17488     1504        107          96   Hathway IP Over Cable Interne
 8151     1479       2834         230   UniNet S.A. de C.V. 
 7018     1444       5876        1002   AT&T WorldNet Services

Complete listing at http://thyme.apnic.net/current/data-ASnet

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

  ASN   No of nets  Net Savings Description
  209      2833        2216      Qwest 
 1785      1793        1635      PaeTec Communications, Inc.
17488      1504        1408      Hathway IP Over Cable Interne
20115      2033        1291      Charter Communications 
 4766      1660        1284      Korea Telecom (KIX)
 8151      1479        1249      UniNet S.A. de C.V. 
 4323      1621        1248      Time Warner Telecom
11492      1216        1204      Cable One 
18566      1060        1050      Covad Communications 
 9583      1156        1046      Sify Limited

Complete listing at http://thyme.apnic.net/current/data-CIDRnet

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

Bad AS  Designation  Network              Transit AS  Description
16927   UNALLOCATED   12.0.252.0/23         7018       AT&T WorldNet Servic
15132   UNALLOCATED   12.9.150.0/24         7018       AT&T WorldNet Servic
32567   UNALLOCATED   12.14.170.0/24        7018       AT&T WorldNet Servic
13746   UNALLOCATED   12.24.56.0/24         7018       AT&T WorldNet Servic
32567   UNALLOCATED   12.25.107.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.152.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.154.0/23        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.159.0/24        7018       AT&T WorldNet Servic
32326   UNALLOCATED   12.40.49.0/24         7018       AT&T WorldNet Servic
25639   UNALLOCATED   12.41.169.0/24        7018       AT&T WorldNet Servic

Complete listing at http://thyme.apnic.net/current/data-badAS

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

Network            Origin AS  Description
24.75.116.0/22       10796     ServiceCo LLC - Road Runner 
24.75.160.0/19        7843     Adelphia Corp. 
24.246.0.0/17         7018     AT&T WorldNet Services
24.246.128.0/18       7018     AT&T WorldNet Services
41.208.128.0/18       8346     SONATEL-AS Autonomous System
41.214.0.0/17         8346     SONATEL-AS Autonomous System
41.220.16.0/20        8668     TelOne Zimbabwe P/L
41.223.112.0/22       5713     Telkom SA Ltd 
41.223.132.0/24      12491     IPPlanet
41.223.133.0/24      12491     IPPlanet

Complete listing at http://thyme.apnic.net/current/data-add-IANA

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:9       /10:20      /11:54      /12:159     
/13:311     /14:566     /15:1107    /16:10312   /17:4540    /18:7807    
/19:16861   /20:19755   /21:19324   /22:24573   /23:24942   /24:146188  
/25:657     /26:812     /27:508     /28:94      /29:8       /30:1       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2858          4381      bellsouth.net, inc. 
  209     1577          2833      Qwest 
 4766     1394          1660      Korea Telecom (KIX)
17488     1289          1504      Hathway IP Over Cable Interne
 2386     1255          1575      AT&T Data Communications Serv
 1785     1207          1793      PaeTec Communications, Inc.
11492     1181          1216      Cable One 
20115     1107          2033      Charter Communications 
18566     1041          1060      Covad Communications 
 9583     1001          1156      Sify Limited

Complete listing at http://thyme.apnic.net/current/data/sXXas-nos

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

   4:12        8:175      12:2195     13:2        15:21       16:3      
  17:5        20:35       24:1179     32:51       38:536      40:96     
  41:1579     43:1        44:2        47:9        52:3        55:3      
  56:3        57:26       58:517      59:610      60:456      61:1109   
  62:1115     63:2003     64:3435     65:2439     66:3641     67:1460   
  68:673      69:2447     70:528      71:207      72:1604     73:7      
  74:1358     75:203      76:303      77:795      78:534      79:318    
  80:939      81:846      82:564      83:395      84:589      85:1080   
  86:397      87:638      88:361      89:1388     90:46       91:1879   
  92:324      93:1068     94:984      95:207      96:97       97:171    
  98:187      99:11      110:1       111:1       112:14      113:68     
 114:157     115:209     116:1133    117:473     118:266     119:614    
 120:131     121:704     122:926     123:494     124:838     125:1273   
 128:353     129:225     130:135     131:413     132:68      133:9      
 134:321     135:35      136:224     137:138     138:145     139:92     
 140:413     141:109     142:384     143:326     144:327     145:38     
 146:372     147:144     148:529     149:225     150:133     151:212    
 152:149     153:131     154:10      155:259     156:171     157:271    
 158:160     159:277     160:280     161:140     162:271     163:138    
 164:514     165:504     166:363     167:351     168:682     169:162    
 170:469     171:37      172:10      173:168     174:38      186:2      
 187:25      189:361     190:2544    192:5821    193:4191    194:3317   
 195:2675    196:1058    198:3657    199:3312    200:5495    201:1468   
 202:7801    203:8094    204:3932    205:2151    206:2313    207:2798   
 208:3819    209:3503    210:2771    211:1170    212:1546    213:1645   
 214:66      215:30      216:4556    217:1205    218:375     219:402    
 220:1221    221:472     222:296    

End of report


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