[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 9 18:10:06 UTC 2010


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG and
the RIPE Routing Working Group.

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 10 Jul, 2010

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

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

BGP routing table entries examined:                              325466
    Prefixes after maximum aggregation:                          149552
    Deaggregation factor:                                          2.18
    Unique aggregates announced to Internet:                     158969
Total ASes present in the Internet Routing Table:                 34308
    Prefixes per ASN:                                              9.49
Origin-only ASes present in the Internet Routing Table:           29787
Origin ASes announcing only one prefix:                           14424
Transit ASes present in the Internet Routing Table:                4521
Transit-only ASes present in the Internet Routing Table:            105
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      25
    Max AS path prepend of ASN (41664)                               21
Prefixes from unregistered ASNs in the Routing Table:               302
    Unregistered ASNs in the Routing Table:                         115
Number of 32-bit ASNs allocated by the RIRs:                        679
Prefixes from 32-bit ASNs in the Routing Table:                     817
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            158
Number of addresses announced to Internet:                   2254936928
    Equivalent to 134 /8s, 103 /16s and 155 /24s
    Percentage of available address space announced:               60.8
    Percentage of allocated address space announced:               65.6
    Percentage of available address space allocated:               92.8
    Percentage of address space in use by end-sites:               83.6
Total number of prefixes smaller than registry allocations:      155267

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

Prefixes being announced by APNIC Region ASes:                    78693
    Total APNIC prefixes after maximum aggregation:               27034
    APNIC Deaggregation factor:                                    2.91
Prefixes being announced from the APNIC address blocks:           75569
    Unique aggregates announced from the APNIC address blocks:    33337
APNIC Region origin ASes present in the Internet Routing Table:    4107
    APNIC Prefixes per ASN:                                       18.40
APNIC Region origin ASes announcing only one prefix:               1132
APNIC Region transit ASes present in the Internet Routing Table:    638
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              526528800
    Equivalent to 31 /8s, 98 /16s and 49 /24s
    Percentage of available APNIC address space announced:         78.5

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
                       55296-56319, 131072-132095
APNIC Address Blocks     1/8,  14/8,  27/8,  43/8,  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, 133/8, 175/8, 180/8,
                       182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
                       219/8, 220/8, 221/8, 222/8, 223/8,

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

Prefixes being announced by ARIN Region ASes:                    134709
    Total ARIN prefixes after maximum aggregation:                69317
    ARIN Deaggregation factor:                                     1.94
Prefixes being announced from the ARIN address blocks:           107638
    Unique aggregates announced from the ARIN address blocks:     41899
ARIN Region origin ASes present in the Internet Routing Table:    13775
    ARIN Prefixes per ASN:                                         7.81
ARIN Region origin ASes announcing only one prefix:                5281
ARIN Region transit ASes present in the Internet Routing Table:    1351
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          22
Number of ARIN addresses announced to Internet:               730782240
    Equivalent to 43 /8s, 142 /16s and 218 /24s
    Percentage of available ARIN address space announced:          62.2

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, 393216-394239
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  24/8,  26/8,  28/8,  29/8,
                        30/8,  32/8,  33/8,  34/8,  35/8,  38/8,  40/8,
                        44/8,  45/8,  47/8,  48/8,  50/8,  52/8,  54/8,
                        55/8,  56/8,  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, 107/8,
                       108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

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

Prefixes being announced by RIPE Region ASes:                     74687
    Total RIPE prefixes after maximum aggregation:                43289
    RIPE Deaggregation factor:                                     1.73
Prefixes being announced from the RIPE address blocks:            67835
    Unique aggregates announced from the RIPE address blocks:     44452
RIPE Region origin ASes present in the Internet Routing Table:    14572
    RIPE Prefixes per ASN:                                         4.66
RIPE Region origin ASes announcing only one prefix:                7500
RIPE Region transit ASes present in the Internet Routing Table:    2177
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          24
Number of RIPE addresses announced to Internet:               433722912
    Equivalent to 25 /8s, 218 /16s and 22 /24s
    Percentage of available RIPE address space announced:          76.0

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, 196608-197631
RIPE Address Blocks      2/8,  25/8,  31/8,  46/8,  51/8,  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, 176/8, 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:                   28990
    Total LACNIC prefixes after maximum aggregation:               6947
    LACNIC Deaggregation factor:                                   4.17
Prefixes being announced from the LACNIC address blocks:          27474
    Unique aggregates announced from the LACNIC address blocks:   14473
LACNIC Region origin ASes present in the Internet Routing Table:   1305
    LACNIC Prefixes per ASN:                                      21.05
LACNIC Region origin ASes announcing only one prefix:               401
LACNIC Region transit ASes present in the Internet Routing Table:   226
Average LACNIC Region AS path length visible:                       3.9
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC addresses announced to Internet:              75275520
    Equivalent to 4 /8s, 124 /16s and 157 /24s
    Percentage of available LACNIC address space announced:        56.1

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       262144-263167 plus ERX transfers
LACNIC Address Blocks  177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
                       201/8,

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

Prefixes being announced by AfriNIC Region ASes:                   7322
    Total AfriNIC prefixes after maximum aggregation:              1844
    AfriNIC Deaggregation factor:                                  3.97
Prefixes being announced from the AfriNIC address blocks:          5621
    Unique aggregates announced from the AfriNIC address blocks:   1725
AfriNIC Region origin ASes present in the Internet Routing Table:   373
    AfriNIC Prefixes per ASN:                                     15.07
AfriNIC Region origin ASes announcing only one prefix:              110
AfriNIC Region transit ASes present in the Internet Routing Table:   82
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:             19610368
    Equivalent to 1 /8s, 43 /16s and 59 /24s
    Percentage of available AfriNIC address space announced:       58.4

AfriNIC AS Blocks      36864-37887, 327680-328703 & 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     1857       8425         493   Korea Telecom (KIX)
 4755     1369        296         163   TATA Communications formerly 
 7545     1359        232         105   TPG Internet Pty Ltd
17488     1322        144         125   Hathway IP Over Cable Interne
17974     1156        285          28   PT TELEKOMUNIKASI INDONESIA
 9583      999         74         488   Sify Limited
24560      927        305         168   Bharti Airtel Ltd., Telemedia
 4134      877      21420         409   CHINANET-BACKBONE
 4808      824       1575         219   CNCGROUP IP network: China169
 9829      810        683          29   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     3903       3734         290   bellsouth.net, inc. 
 4323     2719       1114         394   Time Warner Telecom
19262     1827       4562         274   Verizon Global Networks 
 1785     1778        698         129   PaeTec Communications, Inc.
20115     1546       1522         655   Charter Communications 
 7018     1510       5735         962   AT&T WorldNet Services
 6478     1284        258         126   AT&T Worldnet Services 
 2386     1279        567         903   AT&T Data Communications Serv
 3356     1175      10877         405   Level 3 Communications, LLC 
22773     1167       2859          65   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
35805      650         56           6   United Telecom of Georgia
 3292      452       2027         393   TDC Tele Danmark
30890      442        111         207   Evolva Telecom
  702      414       1869         326   UUNET - Commercial IP service
 9198      409        202          13   Kazakhtelecom Data Network Ad
 8866      402        117          18   Bulgarian Telecommunication C
 8551      400        353          46   Bezeq International
 3320      373       7329         324   Deutsche Telekom AG
 3301      372       1414         327   TeliaNet Sweden
34984      359         89         185   BILISIM TELEKOM

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     1523       3017         245   UniNet S.A. de C.V. 
10620     1062        238         150   TVCABLE BOGOTA 
28573     1028        795          98   NET Servicos de Comunicao S.A
 7303      760        390         104   Telecom Argentina Stet-France
 6503      682        175         219   AVANTEL, S.A. 
22047      548        310          15   VTR PUNTO NET S.A. 
 3816      499        216          87   Empresa Nacional de Telecomun
14420      489         31          71   CORPORACION NACIONAL DE TELEC
 7738      477        922          30   Telecomunicacoes da Bahia S.A
11172      451         99          77   Servicios Alestra S.A de C.V 

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     1165        445          10   TEDATA
24863      727        147          39   LINKdotNET AS number
36992      646        279         185   Etisalat MISR
 3741      267        834         229   The Internet Solution 
33776      219         12          11   Starcomms Nigeria Limited
 2018      209        244          61   Tertiary Education Network 
 6713      195        186          16   Itissalat Al-MAGHRIB
24835      191         78          10   RAYA Telecom - Egypt
29571      177         19          10   Ci Telecom Autonomous system 
16637      161        440          96   MTN Network Solutions

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     3903       3734         290   bellsouth.net, inc. 
 4323     2719       1114         394   Time Warner Telecom
 4766     1857       8425         493   Korea Telecom (KIX)
19262     1827       4562         274   Verizon Global Networks 
 1785     1778        698         129   PaeTec Communications, Inc.
20115     1546       1522         655   Charter Communications 
 8151     1523       3017         245   UniNet S.A. de C.V. 
 7018     1510       5735         962   AT&T WorldNet Services
 4755     1369        296         163   TATA Communications formerly 
 7545     1359        232         105   TPG Internet Pty Ltd

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

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

  ASN   No of nets  Net Savings Description
 4323      2719        2325      Time Warner Telecom
 1785      1778        1649      PaeTec Communications, Inc.
19262      1827        1553      Verizon Global Networks 
 4766      1857        1364      Korea Telecom (KIX)
 8151      1523        1278      UniNet S.A. de C.V. 
 7545      1359        1254      TPG Internet Pty Ltd
 4755      1369        1206      TATA Communications formerly 
17488      1322        1197      Hathway IP Over Cable Interne
 6478      1284        1158      AT&T Worldnet Services 
 8452      1165        1155      TEDATA

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  12.39.155.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED  12.39.159.0/24        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
31.0.0.0/16          12654     RIPE NCC RIS Project
31.1.0.0/21          12654     RIPE NCC RIS Project
31.1.24.0/24         12654     RIPE NCC RIS Project
41.222.79.0/24       36938     >>UNKNOWN<<
41.223.92.0/22       36936     >>UNKNOWN<<
41.223.188.0/24      22351     Intelsat 
41.223.189.0/24       6453     Teleglobe Inc. 
41.223.196.0/24      36990     Alkan Telecom Ltd
41.223.197.0/24      36990     Alkan Telecom Ltd
41.223.198.0/24      36990     Alkan Telecom Ltd

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       /9:10      /10:25      /11:68      /12:196     
/13:407     /14:709     /15:1286    /16:11170   /17:5348    /18:9150    
/19:18443   /20:22955   /21:22945   /22:30130   /23:29679   /24:169670  
/25:1036    /26:1328    /27:714     /28:117     /29:47      /30:6       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2501          3903      bellsouth.net, inc. 
 4766     1485          1857      Korea Telecom (KIX)
 4323     1392          2719      Time Warner Telecom
 1785     1239          1778      PaeTec Communications, Inc.
11492     1074          1165      Cable One 
18566     1068          1087      Covad Communications 
17488     1067          1322      Hathway IP Over Cable Interne
 8452     1053          1165      TEDATA
10620      978          1062      TVCABLE BOGOTA 
 7018      910          1510      AT&T WorldNet Services

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

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

   1:7         2:2         4:13        8:287      12:2015     13:7      
  14:1        15:22       16:3        17:8        20:17       24:1458   
  27:238      31:1        32:49       33:12       38:680      40:98     
  41:2446     44:3        46:1        47:18       52:9        55:4      
  56:2        57:28       58:752      59:501      60:459      61:1086   
  62:1065     63:1977     64:3655     65:2360     66:4042     67:1815   
  68:1106     69:2868     70:725      71:381      72:1952     73:2      
  74:2269     75:247      76:313      77:937      78:617      79:436    
  80:984      81:799      82:488      83:444      84:679      85:1051   
  86:456      87:680      88:331      89:1552     90:94       91:2863   
  92:487      93:989      94:1398     95:640      96:353      97:209    
  98:589      99:31      108:100     109:560     110:364     111:542    
 112:284     113:316     114:429     115:567     116:1073    117:651    
 118:479     119:941     120:132     121:724     122:1460    123:933    
 124:1122    125:1320    128:227     129:201     130:196     131:553    
 132:251     133:17      134:196     135:45      136:240     137:158    
 138:264     139:104     140:383     141:198     142:345     143:375    
 144:469     145:50      146:451     147:168     148:664     149:300    
 150:152     151:230     152:296     153:169     154:2       155:328    
 156:159     157:322     158:109     159:379     160:315     161:181    
 162:254     163:177     164:409     165:366     166:460     167:412    
 168:652     169:157     170:712     171:59      172:2       173:934    
 174:470     175:138     176:1       178:279     180:516     182:151    
 183:235     184:107     186:491     187:385     188:1004    189:781    
 190:3803    192:5733    193:4706    194:3375    195:2798    196:1184   
 198:3575    199:3460    200:5336    201:1564    202:7950    203:8284   
 204:4069    205:2330    206:2520    207:3114    208:3868    209:3454   
 210:2529    211:1268    212:1709    213:1640    214:641     215:69     
 216:4673    217:1531    218:496     219:378     220:1138    221:401    
 222:316     223:1      

End of report



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