[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 16 18:11:46 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 17 Jul, 2010

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

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

BGP routing table entries examined:                              325312
    Prefixes after maximum aggregation:                          149926
    Deaggregation factor:                                          2.17
    Unique aggregates announced to Internet:                     159012
Total ASes present in the Internet Routing Table:                 34366
    Prefixes per ASN:                                              9.47
Origin-only ASes present in the Internet Routing Table:           29833
Origin ASes announcing only one prefix:                           14455
Transit ASes present in the Internet Routing Table:                4533
Transit-only ASes present in the Internet Routing Table:            100
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:               308
    Unregistered ASNs in the Routing Table:                         118
Number of 32-bit ASNs allocated by the RIRs:                        686
Prefixes from 32-bit ASNs in the Routing Table:                     825
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            166
Number of addresses announced to Internet:                   2276042112
    Equivalent to 135 /8s, 169 /16s and 165 /24s
    Percentage of available address space announced:               61.4
    Percentage of allocated address space announced:               66.2
    Percentage of available address space allocated:               92.8
    Percentage of address space in use by end-sites:               83.8
Total number of prefixes smaller than registry allocations:      154768

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

Prefixes being announced by APNIC Region ASes:                    78953
    Total APNIC prefixes after maximum aggregation:               27110
    APNIC Deaggregation factor:                                    2.91
Prefixes being announced from the APNIC address blocks:           75847
    Unique aggregates announced from the APNIC address blocks:    33498
APNIC Region origin ASes present in the Internet Routing Table:    4111
    APNIC Prefixes per ASN:                                       18.45
APNIC Region origin ASes announcing only one prefix:               1138
APNIC Region transit ASes present in the Internet Routing Table:    633
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              531282208
    Equivalent to 31 /8s, 170 /16s and 185 /24s
    Percentage of available APNIC address space announced:         79.2

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:                    134218
    Total ARIN prefixes after maximum aggregation:                69466
    ARIN Deaggregation factor:                                     1.93
Prefixes being announced from the ARIN address blocks:           107063
    Unique aggregates announced from the ARIN address blocks:     41911
ARIN Region origin ASes present in the Internet Routing Table:    13792
    ARIN Prefixes per ASN:                                         7.76
ARIN Region origin ASes announcing only one prefix:                5279
ARIN Region transit ASes present in the Internet Routing Table:    1357
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          22
Number of ARIN addresses announced to Internet:               729625120
    Equivalent to 43 /8s, 125 /16s and 50 /24s
    Percentage of available ARIN address space announced:          62.1

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:                     74811
    Total RIPE prefixes after maximum aggregation:                43408
    RIPE Deaggregation factor:                                     1.72
Prefixes being announced from the RIPE address blocks:            67993
    Unique aggregates announced from the RIPE address blocks:     44455
RIPE Region origin ASes present in the Internet Routing Table:    14604
    RIPE Prefixes per ASN:                                         4.66
RIPE Region origin ASes announcing only one prefix:                7511
RIPE Region transit ASes present in the Internet Routing Table:    2179
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          24
Number of RIPE addresses announced to Internet:               434075776
    Equivalent to 25 /8s, 223 /16s and 120 /24s
    Percentage of available RIPE address space announced:          76.1

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:                   28966
    Total LACNIC prefixes after maximum aggregation:               6957
    LACNIC Deaggregation factor:                                   4.16
Prefixes being announced from the LACNIC address blocks:          27578
    Unique aggregates announced from the LACNIC address blocks:   14516
LACNIC Region origin ASes present in the Internet Routing Table:   1307
    LACNIC Prefixes per ASN:                                      21.10
LACNIC Region origin ASes announcing only one prefix:               410
LACNIC Region transit ASes present in the Internet Routing Table:   232
Average LACNIC Region AS path length visible:                       3.9
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC addresses announced to Internet:              75606464
    Equivalent to 4 /8s, 129 /16s and 169 /24s
    Percentage of available LACNIC address space announced:        56.3

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:                   7287
    Total AfriNIC prefixes after maximum aggregation:              1866
    AfriNIC Deaggregation factor:                                  3.91
Prefixes being announced from the AfriNIC address blocks:          5592
    Unique aggregates announced from the AfriNIC address blocks:   1599
AfriNIC Region origin ASes present in the Internet Routing Table:   380
    AfriNIC Prefixes per ASN:                                     14.72
AfriNIC Region origin ASes announcing only one prefix:              117
AfriNIC Region transit ASes present in the Internet Routing Table:   85
Average AfriNIC Region AS path length visible:                      3.7
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:             19625216
    Equivalent to 1 /8s, 43 /16s and 117 /24s
    Percentage of available AfriNIC address space announced:       58.5

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     1859       8425         493   Korea Telecom (KIX)
 7545     1379        232         105   TPG Internet Pty Ltd
 4755     1375        297         162   TATA Communications formerly 
17488     1333        145         127   Hathway IP Over Cable Interne
17974     1166        285          51   PT TELEKOMUNIKASI INDONESIA
 9583     1001         74         485   Sify Limited
24560      957        305         178   Bharti Airtel Ltd., Telemedia
 4134      879      21740         411   CHINANET-BACKBONE
 4808      824       1572         215   CNCGROUP IP network: China169
 9829      813        685          32   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     3891       3718         287   bellsouth.net, inc. 
 4323     2717       1112         393   Time Warner Telecom
19262     1827       4562         274   Verizon Global Networks 
 1785     1780        698         129   PaeTec Communications, Inc.
20115     1548       1524         653   Charter Communications 
 7018     1484       5736         963   AT&T WorldNet Services
 2386     1284        568         905   AT&T Data Communications Serv
 6478     1257        253         197   AT&T Worldnet Services 
22773     1173       2859          65   Cox Communications, Inc.
 3356     1162      10879         405   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
35805      652         56           6   United Telecom of Georgia
 9198      497        202          13   Kazakhtelecom Data Network Ad
 3292      452       2027         393   TDC Tele Danmark
30890      440        111         206   Evolva Telecom
  702      413       1869         325   UUNET - Commercial IP service
 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      362         89         183   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     1529       3033         248   UniNet S.A. de C.V. 
10620     1072        240         149   TVCABLE BOGOTA 
28573     1042        812          99   NET Servicos de Comunicao S.A
 7303      736        390          93   Telecom Argentina Stet-France
 6503      700        177         219   AVANTEL, S.A. 
22047      551        310          15   VTR PUNTO NET S.A. 
 3816      503        218          88   Empresa Nacional de Telecomun
14420      498         32          72   CORPORACION NACIONAL DE TELEC
 7738      477        922          30   Telecomunicacoes da Bahia S.A
11172      449         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     1101        445          10   TEDATA
24863      727        147          39   LINKdotNET AS number
36992      650        279         185   Etisalat MISR
 3741      267        834         229   The Internet Solution 
33776      220         12          12   Starcomms Nigeria Limited
 2018      209        244          61   Tertiary Education Network 
 6713      195        186          16   Itissalat Al-MAGHRIB
24835      189         78           9   RAYA Telecom - Egypt
29571      177         19          10   Ci Telecom Autonomous system 
16637      166        440          95   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     3891       3718         287   bellsouth.net, inc. 
 4323     2717       1112         393   Time Warner Telecom
 4766     1859       8425         493   Korea Telecom (KIX)
19262     1827       4562         274   Verizon Global Networks 
 1785     1780        698         129   PaeTec Communications, Inc.
20115     1548       1524         653   Charter Communications 
 8151     1529       3033         248   UniNet S.A. de C.V. 
 7018     1484       5736         963   AT&T WorldNet Services
 7545     1379        232         105   TPG Internet Pty Ltd
 4755     1375        297         162   TATA Communications formerly 

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

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

  ASN   No of nets  Net Savings Description
 4323      2717        2324      Time Warner Telecom
 1785      1780        1651      PaeTec Communications, Inc.
19262      1827        1553      Verizon Global Networks 
 4766      1859        1366      Korea Telecom (KIX)
 8151      1529        1281      UniNet S.A. de C.V. 
 7545      1379        1274      TPG Internet Pty Ltd
 4755      1375        1213      TATA Communications formerly 
17488      1333        1206      Hathway IP Over Cable Interne
17974      1166        1115      PT TELEKOMUNIKASI INDONESIA
22773      1173        1108      Cox Communications, Inc.

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        /8:21       /9:10      /10:25      /11:68      /12:197     
/13:408     /14:713     /15:1289    /16:11185   /17:5357    /18:9179    
/19:18475   /20:23046   /21:23004   /22:29925   /23:29564   /24:169691  
/25:1006    /26:1277    /27:702     /28:110     /29:47      /30:6       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2491          3891      bellsouth.net, inc. 
 4766     1487          1859      Korea Telecom (KIX)
 4323     1392          2717      Time Warner Telecom
 1785     1241          1780      PaeTec Communications, Inc.
17488     1078          1333      Hathway IP Over Cable Interne
11492     1068          1160      Cable One 
18566     1068          1087      Covad Communications 
 8452      993          1101      TEDATA
10620      988          1072      TVCABLE BOGOTA 
 7018      885          1484      AT&T WorldNet Services

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

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

   1:10        2:2         4:13        8:287      12:2018     13:7      
  14:1        15:22       16:3        17:8        20:6        24:1464   
  27:251      31:1        32:49       33:12       38:688      40:98     
  41:2399     44:3        46:2        47:17       52:9        55:5      
  56:2        57:28       58:755      59:503      60:461      61:1088   
  62:1042     63:1970     64:3678     65:2347     66:4045     67:1828   
  68:1109     69:2690     70:723      71:385      72:1947     73:2      
  74:2262     75:248      76:316      77:897      78:619      79:430    
  80:974      81:765      82:492      83:444      84:680      85:1050   
  86:458      87:682      88:340      89:1563     90:94       91:2875   
  92:503      93:987      94:1401     95:645      96:356      97:212    
  98:610      99:31      108:100     109:567     110:384     111:547    
 112:286     113:319     114:431     115:568     116:1088    117:654    
 118:483     119:880     120:131     121:728     122:1483    123:944    
 124:1116    125:1322    128:226     129:199     130:196     131:553    
 132:247     133:17      134:195     135:45      136:241     137:145    
 138:265     139:104     140:483     141:197     142:337     143:370    
 144:470     145:50      146:449     147:167     148:663     149:301    
 150:153     151:229     152:298     153:169     154:2       155:359    
 156:160     157:296     158:109     159:356     160:316     161:183    
 162:249     163:177     164:405     165:365     166:458     167:414    
 168:649     169:157     170:708     171:59      172:2       173:942    
 174:480     175:146     176:1       178:301     180:522     182:149    
 183:235     184:111     186:499     187:391     188:1008    189:768    
 190:3813    192:5737    193:4719    194:3396    195:2800    196:1192   
 198:3577    199:3456    200:5336    201:1565    202:7972    203:8285   
 204:4074    205:2319    206:2486    207:3104    208:3864    209:3453   
 210:2532    211:1272    212:1711    213:1663    214:639     215:69     
 216:4699    217:1525    218:498     219:378     220:1149    221:402    
 222:316     223:1      

End of report



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