[lacnog] Weekly Routing Table Report

Routing Analysis Role Account cscora en apnic.net
Vie Oct 1 15:58:43 BRT 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 APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats en lists.apnic.net

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

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

Routing Table Report   04:00 +10GMT Sat 02 Oct, 2010

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

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

BGP routing table entries examined:                              332569
    Prefixes after maximum aggregation:                          152883
    Deaggregation factor:                                          2.18
    Unique aggregates announced to Internet:                     163430
Total ASes present in the Internet Routing Table:                 34884
    Prefixes per ASN:                                              9.53
Origin-only ASes present in the Internet Routing Table:           30253
Origin ASes announcing only one prefix:                           14676
Transit ASes present in the Internet Routing Table:                4631
Transit-only ASes present in the Internet Routing Table:            102
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      24
    Max AS path prepend of ASN (41664)                               21
Prefixes from unregistered ASNs in the Routing Table:              3584
    Unregistered ASNs in the Routing Table:                        1563
Number of 32-bit ASNs allocated by the RIRs:                        804
Prefixes from 32-bit ASNs in the Routing Table:                    1114
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            226
Number of addresses announced to Internet:                   2276381248
    Equivalent to 135 /8s, 174 /16s and 210 /24s
    Percentage of available address space announced:               61.4
    Percentage of allocated address space announced:               65.6
    Percentage of available address space allocated:               93.7
    Percentage of address space in use by end-sites:               85.0
Total number of prefixes smaller than registry allocations:      157088

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

Prefixes being announced by APNIC Region ASes:                    81203
    Total APNIC prefixes after maximum aggregation:               27834
    APNIC Deaggregation factor:                                    2.92
Prefixes being announced from the APNIC address blocks:           78077
    Unique aggregates announced from the APNIC address blocks:    34231
APNIC Region origin ASes present in the Internet Routing Table:    4198
    APNIC Prefixes per ASN:                                       18.60
APNIC Region origin ASes announcing only one prefix:               1168
APNIC Region transit ASes present in the Internet Routing Table:    650
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              551534112
    Equivalent to 32 /8s, 223 /16s and 190 /24s
    Percentage of available APNIC address space announced:         78.3

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,  49/8,  58/8,  59/8,
                        60/8,  61/8, 101/8, 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:                    136044
    Total ARIN prefixes after maximum aggregation:                70193
    ARIN Deaggregation factor:                                     1.94
Prefixes being announced from the ARIN address blocks:           108795
    Unique aggregates announced from the ARIN address blocks:     43480
ARIN Region origin ASes present in the Internet Routing Table:    13926
    ARIN Prefixes per ASN:                                         7.81
ARIN Region origin ASes announcing only one prefix:                5321
ARIN Region transit ASes present in the Internet Routing Table:    1374
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          22
Number of ARIN addresses announced to Internet:               735644704
    Equivalent to 43 /8s, 217 /16s and 12 /24s
    Percentage of available ARIN address space announced:          62.6

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:                     76257
    Total RIPE prefixes after maximum aggregation:                44237
    RIPE Deaggregation factor:                                     1.72
Prefixes being announced from the RIPE address blocks:            69692
    Unique aggregates announced from the RIPE address blocks:     45701
RIPE Region origin ASes present in the Internet Routing Table:    14833
    RIPE Prefixes per ASN:                                         4.70
RIPE Region origin ASes announcing only one prefix:                7643
RIPE Region transit ASes present in the Internet Routing Table:    2238
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          24
Number of RIPE addresses announced to Internet:               440007168
    Equivalent to 26 /8s, 57 /16s and 250 /24s
    Percentage of available RIPE address space announced:          77.1

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:                   30341
    Total LACNIC prefixes after maximum aggregation:               7326
    LACNIC Deaggregation factor:                                   4.14
Prefixes being announced from the LACNIC address blocks:          28839
    Unique aggregates announced from the LACNIC address blocks:   15055
LACNIC Region origin ASes present in the Internet Routing Table:   1353
    LACNIC Prefixes per ASN:                                      21.31
LACNIC Region origin ASes announcing only one prefix:               419
LACNIC Region transit ASes present in the Internet Routing Table:   233
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              75693952
    Equivalent to 4 /8s, 130 /16s and 255 /24s
    Percentage of available LACNIC address space announced:        56.4

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:                   7356
    Total AfriNIC prefixes after maximum aggregation:              1891
    AfriNIC Deaggregation factor:                                  3.89
Prefixes being announced from the AfriNIC address blocks:          5662
    Unique aggregates announced from the AfriNIC address blocks:   1688
AfriNIC Region origin ASes present in the Internet Routing Table:   407
    AfriNIC Prefixes per ASN:                                     13.91
AfriNIC Region origin ASes announcing only one prefix:              125
AfriNIC Region transit ASes present in the Internet Routing Table:   91
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       17
Number of AfriNIC addresses announced to Internet:             20910336
    Equivalent to 1 /8s, 63 /16s and 17 /24s
    Percentage of available AfriNIC address space announced:       62.3

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     1861       9436         505   Korea Telecom (KIX)
 7545     1409        297          82   TPG Internet Pty Ltd
 4755     1357        368         163   TATA Communications formerly 
17488     1347        155         124   Hathway IP Over Cable Interne
17974     1251        301          85   PT TELEKOMUNIKASI INDONESIA
24560     1040        303         179   Bharti Airtel Ltd., Telemedia
 9583     1029         77         495   Sify Limited
 4808      936       1714         261   CNCGROUP IP network: China169
18101      882        100         132   Reliance Infocom Ltd Internet
 9829      820        692          33   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     3775       3666         277   bellsouth.net, inc. 
 4323     2712       1106         389   Time Warner Telecom
19262     1821       4708         285   Verizon Global Networks 
 1785     1796        698         131   PaeTec Communications, Inc.
20115     1491       1530         650   Charter Communications 
 7018     1490       5731         956   AT&T WorldNet Services
 6478     1354        275         136   AT&T Worldnet Services 
 2386     1297        555         915   AT&T Data Communications Serv
11492     1218        229          78   Cable One 
22773     1200       2858          61   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      448       2026         389   TDC Tele Danmark
 8866      417        117          21   Bulgarian Telecommunication C
  702      405       1869         319   UUNET - Commercial IP service
 8551      402        353          46   Bezeq International
34984      379         90         185   BILISIM TELEKOM
 3301      377       1688         333   TeliaNet Sweden
30890      374         79         203   Evolva Telecom
 3320      371       7328         322   Deutsche Telekom AG
12479      368        576           5   Uni2 Autonomous System
31148      352         18          77   FreeNet ISP

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     1339       2559         367   UniNet S.A. de C.V. 
10620     1324        248         149   TVCABLE BOGOTA 
28573     1168        893          92   NET Servicos de Comunicao S.A
 7303      810        424         102   Telecom Argentina Stet-France
 6503      755        223         258   AVANTEL, S.A. 
14420      563         39          81   CORPORACION NACIONAL DE TELEC
22047      561        310          15   VTR PUNTO NET S.A. 
 3816      483        210          94   Empresa Nacional de Telecomun
 7738      477        922          30   Telecomunicacoes da Bahia S.A
11172      445         99          76   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     1008        445          10   TEDATA
24863      737        147          39   LINKdotNET AS number
36992      652        279         181   Etisalat MISR
 3741      266        906         224   The Internet Solution 
 6713      203        199          12   Itissalat Al-MAGHRIB
29571      203         19          11   Ci Telecom Autonomous system 
 2018      197        277          64   Tertiary Education Network 
33776      196         12          14   Starcomms Nigeria Limited
24835      163         78           9   RAYA Telecom - Egypt
16637      154        440          92   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     3775       3666         277   bellsouth.net, inc. 
 4323     2712       1106         389   Time Warner Telecom
 4766     1861       9436         505   Korea Telecom (KIX)
19262     1821       4708         285   Verizon Global Networks 
 1785     1796        698         131   PaeTec Communications, Inc.
20115     1491       1530         650   Charter Communications 
 7018     1490       5731         956   AT&T WorldNet Services
 7545     1409        297          82   TPG Internet Pty Ltd
 4755     1357        368         163   TATA Communications formerly 
 6478     1354        275         136   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
 4323      2712        2323      Time Warner Telecom
 1785      1796        1665      PaeTec Communications, Inc.
19262      1821        1536      Verizon Global Networks 
 4766      1861        1356      Korea Telecom (KIX)
 7545      1409        1327      TPG Internet Pty Ltd
17488      1347        1223      Hathway IP Over Cable Interne
 6478      1354        1218      AT&T Worldnet Services 
 4755      1357        1194      TATA Communications formerly 
10620      1324        1175      TVCABLE BOGOTA 
17974      1251        1166      PT TELEKOMUNIKASI INDONESIA

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

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

Bad AS  Designation  Network              Transit AS  Description
40331   UNALLOCATED  8.11.167.0/24         7018       AT&T WorldNet Servic
11946   UNALLOCATED  8.12.155.0/24        40913       Quality Technology S
15040   UNALLOCATED  8.12.156.0/24         3356       Level 3 Communicatio
33084   UNALLOCATED  8.15.195.0/24         3356       Level 3 Communicatio
18826   UNALLOCATED  8.17.208.0/20         2828       XO Communications 
16734   UNALLOCATED  8.18.204.0/24        26914       Global Netoptex, Inc
53562   UNALLOCATED  8.19.94.0/24          3356       Level 3 Communicatio
23200   UNALLOCATED  8.20.243.0/24        25653       Pegasus Web Technolo
22015   UNALLOCATED  8.22.137.0/24        14989       Broadview Networks 
46856   UNALLOCATED  8.22.184.0/22         3356       Level 3 Communicatio

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<<
41.223.196.0/24      36990     Alkan Telecom Ltd
41.223.197.0/24      36990     Alkan Telecom Ltd
41.223.198.0/24      36990     Alkan Telecom Ltd
41.223.199.0/24      36990     Alkan Telecom Ltd
46.16.64.0/22        28703     Joint Stock Company "UralInte

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      /10:25      /11:67      /12:203     
/13:422     /14:732     /15:1325    /16:11292   /17:5465    /18:9287    
/19:18481   /20:23594   /21:23820   /22:31164   /23:30460   /24:173233  
/25:1021    /26:1138    /27:584     /28:170     /29:47      /30:3       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2403          3775      bellsouth.net, inc. 
 4766     1478          1861      Korea Telecom (KIX)
 4323     1369          2712      Time Warner Telecom
 1785     1259          1796      PaeTec Communications, Inc.
10620     1212          1324      TVCABLE BOGOTA 
11492     1105          1218      Cable One 
17488     1087          1347      Hathway IP Over Cable Interne
18566     1068          1087      Covad Communications 
24560      941          1040      Bharti Airtel Ltd., Telemedia
 8452      922          1008      TEDATA

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

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

   1:74        2:15        4:13        8:309      12:2014     13:8      
  14:13       15:20       16:3        17:9        20:8        24:1376   
  27:354      31:1        32:61       33:12       38:700      40:97     
  41:2467     44:3        46:140      47:10       49:4        52:12     
  55:5        56:2        57:29       58:827      59:505      60:478    
  61:1087     62:1045     63:1970     64:3727     65:2290     66:4043   
  67:1843     68:1138     69:2832     70:741      71:375      72:1944   
  73:2        74:2312     75:289      76:322      77:870      78:677    
  79:421      80:1016     81:800      82:505      83:454      84:680    
  85:1038     86:432      87:681      88:325      89:1557     90:104    
  91:3072     92:430      93:1004     94:1092     95:728      96:398    
  97:219      98:633      99:32      101:3       108:64      109:709    
 110:432     111:596     112:295     113:288     114:476     115:600    
 116:1105    117:659     118:531     119:971     120:178     121:716    
 122:1549    123:916     124:1228    125:1273    128:228     129:157    
 130:172     131:558     132:257     133:20      134:207     135:46     
 136:224     137:140     138:275     139:109     140:480     141:196    
 142:348     143:352     144:482     145:54      146:429     147:169    
 148:628     149:304     150:152     151:233     152:291     153:171    
 154:3       155:367     156:169     157:335     158:112     159:357    
 160:315     161:190     162:267     163:165     164:417     165:366    
 166:467     167:409     168:677     169:156     170:719     171:62     
 172:2       173:1086    174:558     175:176     176:1       177:1      
 178:518     180:677     181:1       182:228     183:258     184:156    
 186:685     187:501     188:825     189:805     190:4134    192:5776   
 193:4738    194:3432    195:2828    196:1202    198:3557    199:3591   
 200:5411    201:1581    202:8079    203:8302    204:4016    205:2396   
 206:2529    207:3040    208:3888    209:3496    210:2559    211:1283   
 212:1777    213:1701    214:665     215:66      216:4742    217:1569   
 218:491     219:401     220:1170    221:427     222:341     223:46     


End of report



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