Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 26 13:13:24 CDT 2009


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

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

Routing Table Report   04:00 +10GMT Sat 27 Jun, 2009

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

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

BGP routing table entries examined:                              289314
    Prefixes after maximum aggregation:                          137532
    Deaggregation factor:                                          2.10
    Unique aggregates announced to Internet:                     143144
Total ASes present in the Internet Routing Table:                 31577
    Prefixes per ASN:                                              9.16
Origin-only ASes present in the Internet Routing Table:           27449
Origin ASes announcing only one prefix:                           13372
Transit ASes present in the Internet Routing Table:                4128
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:                                      24
    Max AS path prepend of ASN (12026)                               22
Prefixes from unregistered ASNs in the Routing Table:               465
    Unregistered ASNs in the Routing Table:                         130
Number of 32-bit ASNs allocated by the RIRs:                        183
Prefixes from 32-bit ASNs in the Routing Table:                      61
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            845
Number of addresses announced to Internet:                   2060355024
    Equivalent to 122 /8s, 206 /16s and 133 /24s
    Percentage of available address space announced:               55.6
    Percentage of allocated address space announced:               64.3
    Percentage of available address space allocated:               86.4
    Percentage of address space in use by end-sites:               77.5
Total number of prefixes smaller than registry allocations:      143081

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

Prefixes being announced by APNIC Region ASes:                    69089
    Total APNIC prefixes after maximum aggregation:               24566
    APNIC Deaggregation factor:                                    2.81
Prefixes being announced from the APNIC address blocks:           68502
    Unique aggregates announced from the APNIC address blocks:    30738
APNIC Region origin ASes present in the Internet Routing Table:    3683
    APNIC Prefixes per ASN:                                       18.60
APNIC Region origin ASes announcing only one prefix:               1003
APNIC Region transit ASes present in the Internet Routing Table:    563
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              460662416
    Equivalent to 27 /8s, 117 /16s and 38 /24s
    Percentage of available APNIC address space announced:         85.8

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,
                       180/8, 183/8, 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:                    123464
    Total ARIN prefixes after maximum aggregation:                66016
    ARIN Deaggregation factor:                                     1.87
Prefixes being announced from the ARIN address blocks:           124206
    Unique aggregates announced from the ARIN address blocks:     51842
ARIN Region origin ASes present in the Internet Routing Table:    13056
    ARIN Prefixes per ASN:                                         9.51
ARIN Region origin ASes announcing only one prefix:                5016
ARIN Region transit ASes present in the Internet Routing Table:    1286
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          24
Number of ARIN addresses announced to Internet:              1009889856
    Equivalent to 60 /8s, 49 /16s and 178 /24s
    Percentage of available ARIN address space announced:         194.2

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
                       53248-55295
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:                     66136
    Total RIPE prefixes after maximum aggregation:                39167
    RIPE Deaggregation factor:                                     1.69
Prefixes being announced from the RIPE address blocks:            65269
    Unique aggregates announced from the RIPE address blocks:     43954
RIPE Region origin ASes present in the Internet Routing Table:    13209
    RIPE Prefixes per ASN:                                         4.94
RIPE Region origin ASes announcing only one prefix:                6900
RIPE Region transit ASes present in the Internet Routing Table:    1980
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               483628352
    Equivalent to 28 /8s, 211 /16s and 149 /24s
    Percentage of available RIPE address space announced:         103.0

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, 47104-52223
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, 109/8,
                       178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
                      

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

Prefixes being announced by LACNIC Region ASes:                   24127
    Total LACNIC prefixes after maximum aggregation:               5978
    LACNIC Deaggregation factor:                                   4.04
Prefixes being announced from the LACNIC address blocks:          23993
    Unique aggregates announced from the LACNIC address blocks:   13443
LACNIC Region origin ASes present in the Internet Routing Table:   1127
    LACNIC Prefixes per ASN:                                      21.29
LACNIC Region origin ASes announcing only one prefix:               362
LACNIC Region transit ASes present in the Internet Routing Table:   189
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              71744256
    Equivalent to 4 /8s, 70 /16s and 187 /24s
    Percentage of available LACNIC address space announced:        71.3

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247
                       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:                   6091
    Total AfriNIC prefixes after maximum aggregation:              1486
    AfriNIC Deaggregation factor:                                  4.10
Prefixes being announced from the AfriNIC address blocks:          6485
    Unique aggregates announced from the AfriNIC address blocks:   2509
AfriNIC Region origin ASes present in the Internet Routing Table:   300
    AfriNIC Prefixes per ASN:                                     21.62
AfriNIC Region origin ASes announcing only one prefix:               91
AfriNIC Region transit ASes present in the Internet Routing Table:   64
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             20142592
    Equivalent to 1 /8s, 51 /16s and 90 /24s
    Percentage of available AfriNIC address space announced:       60.0

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     1706       6930         403   Korea Telecom (KIX)
17488     1536        138          95   Hathway IP Over Cable Interne
 4755     1216        327         138   TATA Communications formerly 
 9583     1116         89         557   Sify Limited
 4134      949      17104         377   CHINANET-BACKBONE
 7545      807        198         101   TPG Internet Pty Ltd
23577      783         34         666   Korea Telecom (ATM-MPLS)
18101      752        201          33   Reliance Infocom Ltd Internet
24560      721        230         172   Bharti Airtel Ltd.
 9829      714        603          18   BSNL National Internet Backbo

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     4272       3647         324   bellsouth.net, inc. 
 4323     1877       1039         380   Time Warner Telecom
 1785     1697        714         138   PaeTec Communications, Inc.
 7018     1503       5925        1042   AT&T WorldNet Services
20115     1404       1470         672   Charter Communications 
 6478     1394        307         432   AT&T Worldnet Services 
 2386     1265        670         919   AT&T Data Communications Serv
 3356     1202      10964         449   Level 3 Communications, LLC 
11492     1117        208          12   Cable One 
22773     1064       2604          66   Cox Communications, Inc.

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      456       1902         393   TDC Tele Danmark
12479      450        578           6   Uni2 Autonomous System
  702      428       1861         345   UUNET - Commercial IP service
30890      418         88         198   Evolva Telecom
35805      353         40           5   United Telecom of Georgia
 8866      351        109          21   Bulgarian Telecommunication C
 3301      347       1668         309   TeliaNet Sweden
 3215      341       3041         106   France Telecom Transpac
 3320      340       7067         298   Deutsche Telekom AG
29049      317         26           3   AzerSat LLC.

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     1459       2879         233   UniNet S.A. de C.V. 
10620      918        210         113   TVCABLE BOGOTA 
22047      599        302          14   VTR PUNTO NET S.A. 
28573      581        570          31   NET Servicos de Comunicao S.A
 7303      566        299          86   Telecom Argentina Stet-France
11830      486        293          63   Instituto Costarricense de El
11172      441        102          70   Servicios Alestra S.A de C.V 
 6471      439         96          31   ENTEL CHILE S.A. 
 7738      404        794          28   Telecomunicacoes da Bahia S.A
 3816      371        189          83   Empresa Nacional de Telecomun

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
 8452      940        188           7   TEDATA
24863      892         85          42   LINKdotNET AS number
20858      324         34           5   EgyNet
 3741      276        856         236   The Internet Solution 
 2018      243        215         143   Tertiary Education Network 
 6713      175        166          16   Itissalat Al-MAGHRIB
33783      152         10           8   EEPAD TISP TELECOM & INTERNET
29571      139         15           8   Ci Telecom Autonomous system 
 5536      123          8           9   Internet Egypt Network
 5713      116        508          67   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     4272       3647         324   bellsouth.net, inc. 
 4323     1877       1039         380   Time Warner Telecom
 4766     1706       6930         403   Korea Telecom (KIX)
 1785     1697        714         138   PaeTec Communications, Inc.
17488     1536        138          95   Hathway IP Over Cable Interne
 7018     1503       5925        1042   AT&T WorldNet Services
 8151     1459       2879         233   UniNet S.A. de C.V. 
20115     1404       1470         672   Charter Communications 
 6478     1394        307         432   AT&T Worldnet Services 
 2386     1265        670         919   AT&T Data Communications Serv

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

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

  ASN   No of nets  Net Savings Description
 1785      1697        1559      PaeTec Communications, Inc.
 4323      1877        1497      Time Warner Telecom
17488      1536        1441      Hathway IP Over Cable Interne
 4766      1706        1303      Korea Telecom (KIX)
 8151      1459        1226      UniNet S.A. de C.V. 
11492      1117        1105      Cable One 
 4755      1216        1078      TATA Communications formerly 
18566      1062        1052      Covad Communications 
22773      1064         998      Cox Communications, Inc.
 6478      1394         962      AT&T Worldnet Services 

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
41.223.112.0/22       5713     Telkom SA Ltd 
41.223.176.0/22      36981     >>UNKNOWN<<
41.223.188.0/24      22351     Intelsat 
41.223.189.0/24      26452     Local Communications Networks
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
64.31.32.0/19        11955     ServiceCo LLC - Road Runner 
64.31.59.0/24         7017     ServiceCo LLC - Road Runner 

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       /9:10      /10:22      /11:58      /12:168     
/13:351     /14:606     /15:1159    /16:10512   /17:4751    /18:8177    
/19:16879   /20:20304   /21:20131   /22:26072   /23:25781   /24:151676  
/25:881     /26:1031    /27:557     /28:147     /29:8       /30:6       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2782          4272      bellsouth.net, inc. 
 4766     1399          1706      Korea Telecom (KIX)
17488     1282          1536      Hathway IP Over Cable Interne
 1785     1173          1697      PaeTec Communications, Inc.
11492     1044          1117      Cable One 
18566     1043          1062      Covad Communications 
 2386      983          1265      AT&T Data Communications Serv
 9583      968          1116      Sify Limited
 4323      959          1877      Time Warner Telecom
 7018      871          1503      AT&T WorldNet Services

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

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

   4:13        8:204      12:2240     13:10       15:19       16:3      
  17:4        20:36       24:1050     32:52       34:2        38:574    
  40:96       41:1710     43:1        44:2        47:15       52:4      
  55:2        56:3        57:24       58:574      59:643      60:459    
  61:1080     62:1115     63:2015     64:3727     65:2384     66:3605   
  67:1638     68:805      69:2662     70:554      71:145      72:1667   
  73:2        74:1593     75:167      76:326      77:847      78:555    
  79:357      80:973      81:841      82:562      83:436      84:637    
  85:1040     86:397      87:661      88:354      89:1437     90:57     
  91:2362     92:349      93:1128     94:1232     95:1071     96:143    
  97:216      98:249      99:23      110:162     111:41      112:137    
 113:126     114:261     115:304     116:1156    117:534     118:301    
 119:709     120:142     121:759     122:1036    123:699     124:975    
 125:1342    128:223     129:237     130:127     131:412     132:74     
 133:9       134:185     135:38      136:224     137:162     138:164    
 139:80      140:443     141:120     142:380     143:346     144:364    
 145:48      146:381     147:155     148:519     149:238     150:177    
 151:193     152:145     153:145     154:2       155:276     156:171    
 157:301     158:116     159:343     160:284     161:153     162:273    
 163:161     164:482     165:500     166:456     167:359     168:665    
 169:168     170:476     171:39      172:10      173:303     174:227    
 178:1       180:1       183:1       186:96      187:96      188:106    
 189:434     190:2810    192:5785    193:4243    194:3308    195:2701   
 196:1099    198:3599    199:3341    200:5102    201:1286    202:7912   
 203:8236    204:3874    205:2161    206:2438    207:2726    208:3890   
 209:3404    210:2677    211:1128    212:1567    213:1660    214:80     
 215:30      216:4551    217:1309    218:394     219:430     220:1223   
 221:483     222:304    

End of report




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