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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 3 Jan 2009 04:13:36 +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 03 Jan, 2009

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

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

BGP routing table entries examined:                              275280
    Prefixes after maximum aggregation:                          131723
    Deaggregation factor:                                          2.09
    Unique aggregates announced to Internet:                     133384
Total ASes present in the Internet Routing Table:                 30197
    Prefixes per ASN:                                              9.12
Origin-only ASes present in the Internet Routing Table:           26280
Origin ASes announcing only one prefix:                           12806
Transit ASes present in the Internet Routing Table:                3917
Transit-only ASes present in the Internet Routing Table:             95
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      24
    Max AS path prepend of ASN ( 3816)                               15
Prefixes from unregistered ASNs in the Routing Table:               523
    Unregistered ASNs in the Routing Table:                         188
Number of 32-bit ASNs allocated by the RIRs:                         70
Prefixes from 32-bit ASNs in the Routing Table:                      12
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            231
Number of addresses announced to Internet:                   1980712736
    Equivalent to 118 /8s, 15 /16s and 71 /24s
    Percentage of available address space announced:               53.4
    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:      134788

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

Prefixes being announced by APNIC Region ASes:                    63617
    Total APNIC prefixes after maximum aggregation:               22614
    APNIC Deaggregation factor:                                    2.81
Prefixes being announced from the APNIC address blocks:           60489
    Unique aggregates announced from the APNIC address blocks:    25957
APNIC Region origin ASes present in the Internet Routing Table:    3492
    APNIC Prefixes per ASN:                                       17.32
APNIC Region origin ASes announcing only one prefix:                956
APNIC Region transit ASes present in the Internet Routing Table:    537
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         24
Number of APNIC addresses announced to Internet:              395968416
    Equivalent to 23 /8s, 153 /16s and 255 /24s
    Percentage of available APNIC address space announced:         78.7

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:                    122871
    Total ARIN prefixes after maximum aggregation:                64857
    ARIN Deaggregation factor:                                     1.89
Prefixes being announced from the ARIN address blocks:            92460
    Unique aggregates announced from the ARIN address blocks:     35159
ARIN Region origin ASes present in the Internet Routing Table:    12687
    ARIN Prefixes per ASN:                                         7.29
ARIN Region origin ASes announcing only one prefix:                4890
ARIN Region transit ASes present in the Internet Routing Table:    1213
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          20
Number of ARIN addresses announced to Internet:               405423904
    Equivalent to 24 /8s, 42 /16s and 71 /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:                     61292
    Total RIPE prefixes after maximum aggregation:                36722
    RIPE Deaggregation factor:                                     1.67
Prefixes being announced from the RIPE address blocks:            56859
    Unique aggregates announced from the RIPE address blocks:     37994
RIPE Region origin ASes present in the Internet Routing Table:    12432
    RIPE Prefixes per ASN:                                         4.57
RIPE Region origin ASes announcing only one prefix:                6539
RIPE Region transit ASes present in the Internet Routing Table:    1884
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               383811168
    Equivalent to 22 /8s, 224 /16s and 126 /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:                   22931
    Total LACNIC prefixes after maximum aggregation:               5719
    LACNIC Deaggregation factor:                                   4.01
Prefixes being announced from the LACNIC address blocks:          21036
    Unique aggregates announced from the LACNIC address blocks:   11601
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:               341
LACNIC Region transit ASes present in the Internet Routing Table:   170
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        18
Number of LACNIC addresses announced to Internet:              59299968
    Equivalent to 3 /8s, 136 /16s and 216 /24s
    Percentage of available LACNIC address space announced:        58.9

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:                   4068
    Total AfriNIC prefixes after maximum aggregation:              1396
    AfriNIC Deaggregation factor:                                  2.91
Prefixes being announced from the AfriNIC address blocks:          4338
    Unique aggregates announced from the AfriNIC address blocks:   2165
AfriNIC Region origin ASes present in the Internet Routing Table:   268
    AfriNIC Prefixes per ASN:                                     16.19
AfriNIC Region origin ASes announcing only one prefix:               80
AfriNIC Region transit ASes present in the Internet Routing Table:   58
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             12971264
    Equivalent to 0 /8s, 197 /16s and 237 /24s
    Percentage of available AfriNIC address space announced:       25.8

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     1647       6410         372   Korea Telecom (KIX)
17488     1477        104         101   Hathway IP Over Cable Interne
 4755     1176        434         165   TATA Communications formerly 
 9583      902        131          67   Sify Limited
 4134      896      15977         360   CHINANET-BACKBONE
18101      782        168          30   Reliance Infocom Ltd Internet
 9498      759        292          47   BHARTI BT INTERNET LTD.
 4780      721        360          66   Digital United Inc.
24560      662        227         169   Bharti Airtel Ltd.
 7545      661        152          82   TPG Internet Pty 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         345   bellsouth.net, inc. 
  209     2843       4032         621   Qwest 
20115     1848       1455         741   Charter Communications 
 1785     1705        717         154   PaeTec Communications, Inc.
 4323     1606       1059         378   Time Warner Telecom
 2386     1580        706         894   AT&T Data Communications Serv
 7018     1425       5872         985   AT&T WorldNet Services
11492     1231        192          12   Cable One 
 3356     1105      10994         432   Level 3 Communications, LLC 
18566     1060        296          10   Covad Communications 

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
 3292      434       1764         383   TDC Tele Danmark
30890      391         80         203   SC Kappa Invexim SRL
12479      383        578           6   Uni2 Autonomous System
 3301      336       1413         303   TeliaNet Sweden
 3320      333       7065         282   Deutsche Telekom AG
 8866      330        109          22   Bulgarian Telecommunication C
 3215      327       2857          96   France Telecom Transpac
29049      323         26           3   AzerSat LLC.
 8551      304        287          35   Bezeq International
 8452      271        188           7   TEDATA

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     1400       2820         224   UniNet S.A. de C.V. 
10620      688        149          57   TVCABLE BOGOTA 
11830      671        299           9   Instituto Costarricense de El
22047      565        302          14   VTR PUNTO NET S.A. 
 7303      505        249          76   Telecom Argentina Stet-France
 6471      429         86          40   ENTEL CHILE S.A. 
16814      426         27          10   NSS, S.A. 
11172      411        118          72   Servicios Alestra S.A de C.V 
28573      364        489          26   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      518         71          83   LINKdotNET AS number
 3741      270        857         227   The Internet Solution 
20858      258         34           3   This AS will be used to conne
 2018      239        215         140   Tertiary Education Network 
33783      147         10          13   EEPAD TISP TELECOM & INTERNET
 6713      145        139          12   Itissalat Al-MAGHRIB
29571      121         15           8   Ci Telecom Autonomous system 
 5536      120          8          17   Internet Egypt Network
 5713      119        555          68   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     4381       3435         345   bellsouth.net, inc. 
  209     2843       4032         621   Qwest 
20115     1848       1455         741   Charter Communications 
 1785     1705        717         154   PaeTec Communications, Inc.
 4766     1647       6410         372   Korea Telecom (KIX)
 4323     1606       1059         378   Time Warner Telecom
 2386     1580        706         894   AT&T Data Communications Serv
17488     1477        104         101   Hathway IP Over Cable Interne
 7018     1425       5872         985   AT&T WorldNet Services
 8151     1400       2820         224   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      2843        2222      Qwest 
 1785      1705        1551      PaeTec Communications, Inc.
17488      1477        1376      Hathway IP Over Cable Interne
 4766      1647        1275      Korea Telecom (KIX)
 4323      1606        1228      Time Warner Telecom
11492      1231        1219      Cable One 
 8151      1400        1176      UniNet S.A. de C.V. 
20115      1848        1107      Charter Communications 
18566      1060        1050      Covad Communications 
 4755      1176        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
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
63.140.213.0/24      22555     Universal Talkware Corporatio
63.143.251.0/24      22555     Universal Talkware Corporatio

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        /8:20       /9:9       /10:20      /11:54      /12:158     
/13:310     /14:562     /15:1102    /16:10283   /17:4528    /18:7753    
/19:16641   /20:19591   /21:19140   /22:24233   /23:24626   /24:144146  
/25:655     /26:822     /27:513     /28:98      /29:8       /30:1       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2864          4381      bellsouth.net, inc. 
  209     1589          2843      Qwest 
 4766     1382          1647      Korea Telecom (KIX)
17488     1263          1477      Hathway IP Over Cable Interne
 2386     1257          1580      AT&T Data Communications Serv
11492     1200          1231      Cable One 
 1785     1168          1705      PaeTec Communications, Inc.
18566     1041          1060      Covad Communications 
20115      930          1848      Charter Communications 
 7011      837           936      Citizens Utilities 

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

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

   4:12        8:173      12:2177     13:2        15:21       16:3      
  17:5        20:35       24:1107     32:54       38:532      40:96     
  41:824      43:1        44:2        47:9        52:3        55:3      
  56:3        57:26       58:525      59:600      60:455      61:1097   
  62:1113     63:2002     64:3397     65:2448     66:3607     67:1440   
  68:655      69:2415     70:530      71:173      72:1591     73:7      
  74:1339     75:193      76:306      77:785      78:512      79:302    
  80:945      81:845      82:561      83:378      84:593      85:1061   
  86:394      87:638      88:354      89:1377     90:41       91:1811   
  92:307      93:1076     94:866      95:145      96:96       97:153    
  98:172      99:10      110:1       111:1       113:56      114:151    
 115:176     116:1112    117:434     118:244     119:590     120:130    
 121:701     122:892     123:480     124:772     125:1345    128:358    
 129:220     130:134     131:410     132:72      133:9       134:323    
 135:34      136:219     137:133     138:144     139:92      140:415    
 141:109     142:382     143:306     144:320     145:53      146:371    
 147:142     148:605     149:219     150:139     151:208     152:149    
 153:131     154:10      155:254     156:168     157:271     158:162    
 159:299     160:273     161:131     162:255     163:141     164:519    
 165:501     166:364     167:348     168:676     169:159     170:462    
 171:38      172:10      173:144     174:18      187:17      188:1      
 189:358     190:2484    192:5818    193:4176    194:3308    195:2655   
 196:1033    198:3694    199:3314    200:5544    201:1484    202:7782   
 203:8080    204:3924    205:2168    206:2324    207:2769    208:3794   
 209:3501    210:2688    211:1159    212:1557    213:1629    214:67     
 215:29      216:4538    217:1157    218:374     219:403     220:1236   
 221:399     222:294    

End of report


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