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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 10 Jan 2009 04:10:22 +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 10 Jan, 2009

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

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

BGP routing table entries examined:                              276748
    Prefixes after maximum aggregation:                          132415
    Deaggregation factor:                                          2.09
    Unique aggregates announced to Internet:                     135537
Total ASes present in the Internet Routing Table:                 30275
    Prefixes per ASN:                                              9.14
Origin-only ASes present in the Internet Routing Table:           26332
Origin ASes announcing only one prefix:                           12831
Transit ASes present in the Internet Routing Table:                3943
Transit-only ASes present in the Internet Routing Table:             92
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      23
    Max AS path prepend of ASN (33868)                               19
Prefixes from unregistered ASNs in the Routing Table:               493
    Unregistered ASNs in the Routing Table:                         182
Number of 32-bit ASNs allocated by the RIRs:                         71
Prefixes from 32-bit ASNs in the Routing Table:                      11
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            254
Number of addresses announced to Internet:                   1981613920
    Equivalent to 118 /8s, 29 /16s and 7 /24s
    Percentage of available address space announced:               53.5
    Percentage of allocated address space announced:               63.2
    Percentage of available address space allocated:               84.6
    Percentage of address space in use by end-sites:               75.1
Total number of prefixes smaller than registry allocations:      135621

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

Prefixes being announced by APNIC Region ASes:                    64123
    Total APNIC prefixes after maximum aggregation:               23155
    APNIC Deaggregation factor:                                    2.77
Prefixes being announced from the APNIC address blocks:           60992
    Unique aggregates announced from the APNIC address blocks:    27681
APNIC Region origin ASes present in the Internet Routing Table:    3503
    APNIC Prefixes per ASN:                                       17.41
APNIC Region origin ASes announcing only one prefix:                955
APNIC Region transit ASes present in the Internet Routing Table:    538
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         22
Number of APNIC addresses announced to Internet:              394564832
    Equivalent to 23 /8s, 132 /16s and 148 /24s
    Percentage of available APNIC address space announced:         78.4

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:                    123262
    Total ARIN prefixes after maximum aggregation:                64979
    ARIN Deaggregation factor:                                     1.90
Prefixes being announced from the ARIN address blocks:            92772
    Unique aggregates announced from the ARIN address blocks:     35437
ARIN Region origin ASes present in the Internet Routing Table:    12709
    ARIN Prefixes per ASN:                                         7.30
ARIN Region origin ASes announcing only one prefix:                4893
ARIN Region transit ASes present in the Internet Routing Table:    1217
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          20
Number of ARIN addresses announced to Internet:               405753632
    Equivalent to 24 /8s, 47 /16s and 79 /24s
    Percentage of available ARIN address space announced:          78.0

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:                     61632
    Total RIPE prefixes after maximum aggregation:                36822
    RIPE Deaggregation factor:                                     1.67
Prefixes being announced from the RIPE address blocks:            57016
    Unique aggregates announced from the RIPE address blocks:     38082
RIPE Region origin ASes present in the Internet Routing Table:    12474
    RIPE Prefixes per ASN:                                         4.57
RIPE Region origin ASes announcing only one prefix:                6561
RIPE Region transit ASes present in the Internet Routing Table:    1905
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          23
Number of RIPE addresses announced to Internet:               384010848
    Equivalent to 22 /8s, 227 /16s and 138 /24s
    Percentage of available RIPE address space announced:          88.0

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:                   22922
    Total LACNIC prefixes after maximum aggregation:               5700
    LACNIC Deaggregation factor:                                   4.02
Prefixes being announced from the LACNIC address blocks:          21035
    Unique aggregates announced from the LACNIC address blocks:   11598
LACNIC Region origin ASes present in the Internet Routing Table:   1047
    LACNIC Prefixes per ASN:                                      20.09
LACNIC Region origin ASes announcing only one prefix:               338
LACNIC Region transit ASes present in the Internet Routing Table:   172
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        18
Number of LACNIC addresses announced to Internet:              59650432
    Equivalent to 3 /8s, 142 /16s and 49 /24s
    Percentage of available LACNIC address space announced:        59.3

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:                   4335
    Total AfriNIC prefixes after maximum aggregation:              1363
    AfriNIC Deaggregation factor:                                  3.18
Prefixes being announced from the AfriNIC address blocks:          4772
    Unique aggregates announced from the AfriNIC address blocks:   2189
AfriNIC Region origin ASes present in the Internet Routing Table:   276
    AfriNIC Prefixes per ASN:                                     17.29
AfriNIC Region origin ASes announcing only one prefix:               84
AfriNIC Region transit ASes present in the Internet Routing Table:   60
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC addresses announced to Internet:             13108480
    Equivalent to 0 /8s, 200 /16s and 5 /24s
    Percentage of available AfriNIC address space announced:       26.0

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     1649       6410         374   Korea Telecom (KIX)
17488     1482        104         100   Hathway IP Over Cable Interne
 4755     1181        435         170   TATA Communications formerly 
 9583     1107         87         523   Sify Limited
 4134      896      15977         361   CHINANET-BACKBONE
18101      782        168          30   Reliance Infocom Ltd Internet
 4780      720        358          65   Digital United Inc.
 9498      688        297          52   BHARTI BT INTERNET LTD.
 7545      662        152          81   TPG Internet Pty Ltd
24560      659        224         180   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     4389       3435         345   bellsouth.net, inc. 
  209     2847       4033         622   Qwest 
20115     1852       1458         743   Charter Communications 
 1785     1711        718         158   PaeTec Communications, Inc.
 4323     1614       1051         382   Time Warner Telecom
 2386     1582        706         896   AT&T Data Communications Serv
 7018     1429       5871         990   AT&T WorldNet Services
11492     1232        192          12   Cable One 
 6478     1191        298         444   AT&T Worldnet Services 
 3356     1108      10994         432   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      446        188           7   TEDATA
 3292      436       1764         383   TDC Tele Danmark
12479      386        578           6   Uni2 Autonomous System
30890      386         85         198   SC Kappa Invexim SRL
 3301      336       1669         303   TeliaNet Sweden
 3320      332       7065         281   Deutsche Telekom AG
 8866      330        109          22   Bulgarian Telecommunication C
 3215      327       2857          96   France Telecom Transpac
29049      325         26           3   AzerSat LLC.
 8551      304        287          35   Bezeq International

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     1406       2833         222   UniNet S.A. de C.V. 
10620      698        151          58   TVCABLE BOGOTA 
11830      671        299           9   Instituto Costarricense de El
22047      565        302          14   VTR PUNTO NET S.A. 
 7303      507        251          77   Telecom Argentina Stet-France
 6471      429         86          40   ENTEL CHILE S.A. 
16814      426         27          10   NSS, S.A. 
11172      409        118          72   Servicios Alestra S.A de C.V 
28573      369        493          20   NET Servicos de Comunicao S.A
 7738      360        730          27   Telecomunicacoes da Bahia 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      591         72          41   LINKdotNET AS number
 3741      270        857         227   The Internet Solution 
20858      262         34           3   This AS will be used to conne
 2018      239        215         140   Tertiary Education Network 
33783      150         10           8   EEPAD TISP TELECOM & INTERNET
 6713      144        135          11   Itissalat Al-MAGHRIB
29571      126         15           8   Ci Telecom Autonomous system 
 5536      120          8          17   Internet Egypt Network
 5713      118        555          67   Telkom SA Ltd 
33776      118          6           3   Starcomms Nigeria Limited

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     4389       3435         345   bellsouth.net, inc. 
  209     2847       4033         622   Qwest 
20115     1852       1458         743   Charter Communications 
 1785     1711        718         158   PaeTec Communications, Inc.
 4766     1649       6410         374   Korea Telecom (KIX)
 4323     1614       1051         382   Time Warner Telecom
 2386     1582        706         896   AT&T Data Communications Serv
17488     1482        104         100   Hathway IP Over Cable Interne
 7018     1429       5871         990   AT&T WorldNet Services
 8151     1406       2833         222   UniNet S.A. de C.V. 

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

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

  ASN   No of nets  Net Savings Description
  209      2847        2225      Qwest 
 1785      1711        1553      PaeTec Communications, Inc.
17488      1482        1382      Hathway IP Over Cable Interne
 4766      1649        1275      Korea Telecom (KIX)
 4323      1614        1232      Time Warner Telecom
11492      1232        1220      Cable One 
 8151      1406        1184      UniNet S.A. de C.V. 
20115      1852        1109      Charter Communications 
18566      1060        1050      Covad Communications 
 4755      1181        1011      TATA Communications formerly 

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. 
24.142.40.0/21        7018     AT&T WorldNet Services
24.142.160.0/19       7018     AT&T WorldNet Services
24.246.0.0/17         7018     AT&T WorldNet Services
24.246.128.0/18       7018     AT&T WorldNet Services
41.223.112.0/22       5713     Telkom SA Ltd 
41.223.132.0/24      12491     IPPlanet
41.223.133.0/24      12491     IPPlanet
41.223.134.0/24      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     
/13:310     /14:561     /15:1101    /16:10300   /17:4531    /18:7788    
/19:16707   /20:19620   /21:19250   /22:24350   /23:24760   /24:145115  
/25:647     /26:822     /27:514     /28:95      /29:8       /30:1       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2866          4389      bellsouth.net, inc. 
  209     1588          2847      Qwest 
 4766     1384          1649      Korea Telecom (KIX)
17488     1267          1482      Hathway IP Over Cable Interne
 2386     1261          1582      AT&T Data Communications Serv
11492     1200          1232      Cable One 
 1785     1170          1711      PaeTec Communications, Inc.
18566     1041          1060      Covad Communications 
 9583      967          1107      Sify Limited
20115      931          1852      Charter Communications 

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

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

   4:12        8:174      12:2188     13:2        15:21       16:3      
  17:5        20:36       24:1106     32:54       38:533      40:96     
  41:1017     43:1        44:2        47:9        52:3        55:3      
  56:3        57:26       58:518      59:607      60:455      61:1112   
  62:1128     63:2007     64:3398     65:2459     66:3618     67:1446   
  68:654      69:2436     70:531      71:175      72:1589     73:7      
  74:1348     75:194      76:306      77:792      78:527      79:303    
  80:944      81:850      82:580      83:381      84:598      85:1069   
  86:399      87:641      88:352      89:1368     90:44       91:1837   
  92:306      93:1097     94:859      95:155      96:97       97:158    
  98:175      99:10      110:1       111:1       112:5       113:57     
 114:153     115:188     116:1114    117:464     118:247     119:603    
 120:129     121:713     122:920     123:494     124:868     125:1281   
 128:358     129:222     130:135     131:411     132:70      133:9      
 134:325     135:35      136:224     137:136     138:145     139:92     
 140:412     141:109     142:384     143:309     144:323     145:53     
 146:372     147:142     148:610     149:222     150:139     151:208    
 152:149     153:125     154:10      155:242     156:168     157:270    
 158:140     159:300     160:276     161:133     162:255     163:145    
 164:518     165:504     166:364     167:348     168:678     169:161    
 170:461     171:38      172:10      173:193     174:50      187:17     
 188:1       189:357     190:2498    192:5816    193:4182    194:3309   
 195:2666    196:1069    198:3692    199:3305    200:5507    201:1476   
 202:7820    203:8105    204:3931    205:2168    206:2333    207:2772   
 208:3803    209:3534    210:2744    211:1164    212:1551    213:1640   
 214:67      215:29      216:4541    217:1210    218:369     219:403    
 220:1231    221:464     222:296    

End of report


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