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Weekly Routing Table Report



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,
TRNOG, CaribNOG and the RIPE Routing Working Group.

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

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

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 03 Nov, 2012

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

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

BGP routing table entries examined:                              429394
    Prefixes after maximum aggregation:                          179257
    Deaggregation factor:                                          2.40
    Unique aggregates announced to Internet:                     211352
Total ASes present in the Internet Routing Table:                 42340
    Prefixes per ASN:                                             10.14
Origin-only ASes present in the Internet Routing Table:           33614
Origin ASes announcing only one prefix:                           15739
Transit ASes present in the Internet Routing Table:                5668
Transit-only ASes present in the Internet Routing Table:            144
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 22394)                              36
Prefixes from unregistered ASNs in the Routing Table:               928
    Unregistered ASNs in the Routing Table:                         334
Number of 32-bit ASNs allocated by the RIRs:                       3429
Number of 32-bit ASNs visible in the Routing Table:                3058
Prefixes from 32-bit ASNs in the Routing Table:                    8306
Special use prefixes present in the Routing Table:                   14
Prefixes being announced from unallocated address space:            161
Number of addresses announced to Internet:                   2609947628
    Equivalent to 155 /8s, 144 /16s and 163 /24s
    Percentage of available address space announced:               70.5
    Percentage of allocated address space announced:               70.5
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               93.8
Total number of prefixes smaller than registry allocations:      150664

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

Prefixes being announced by APNIC Region ASes:                   103913
    Total APNIC prefixes after maximum aggregation:               32578
    APNIC Deaggregation factor:                                    3.19
Prefixes being announced from the APNIC address blocks:          104695
    Unique aggregates announced from the APNIC address blocks:    43002
APNIC Region origin ASes present in the Internet Routing Table:    4787
    APNIC Prefixes per ASN:                                       21.87
APNIC Region origin ASes announcing only one prefix:               1245
APNIC Region transit ASes present in the Internet Routing Table:    781
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:    347
Number of APNIC addresses announced to Internet:              712664992
    Equivalent to 42 /8s, 122 /16s and 103 /24s
    Percentage of available APNIC address space announced:         83.3

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-133119
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 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, 150/8, 153/8,
                       163/8, 171/8, 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:                    154569
    Total ARIN prefixes after maximum aggregation:                78063
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           155424
    Unique aggregates announced from the ARIN address blocks:     69585
ARIN Region origin ASes present in the Internet Routing Table:    15136
    ARIN Prefixes per ASN:                                        10.27
ARIN Region origin ASes announcing only one prefix:                5706
ARIN Region transit ASes present in the Internet Routing Table:    1599
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1087341440
    Equivalent to 64 /8s, 207 /16s and 131 /24s
    Percentage of available ARIN address space announced:          57.5

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,  23/8,  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,
                        53/8,  54/8,  55/8,  56/8,  57/8,  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, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 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:                    108545
    Total RIPE prefixes after maximum aggregation:                57629
    RIPE Deaggregation factor:                                     1.88
Prefixes being announced from the RIPE address blocks:           111213
    Unique aggregates announced from the RIPE address blocks:     72284
RIPE Region origin ASes present in the Internet Routing Table:    16924
    RIPE Prefixes per ASN:                                         6.57
RIPE Region origin ASes announcing only one prefix:                8144
RIPE Region transit ASes present in the Internet Routing Table:    2745
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1985
Number of RIPE addresses announced to Internet:               648584612
    Equivalent to 38 /8s, 168 /16s and 157 /24s
    Percentage of available RIPE address space announced:          94.3

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, 56320-58367
                       59392-61439, 196608-199679
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  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,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   44337
    Total LACNIC prefixes after maximum aggregation:               8696
    LACNIC Deaggregation factor:                                   5.10
Prefixes being announced from the LACNIC address blocks:          47804
    Unique aggregates announced from the LACNIC address blocks:   22887
LACNIC Region origin ASes present in the Internet Routing Table:   1694
    LACNIC Prefixes per ASN:                                      28.22
LACNIC Region origin ASes announcing only one prefix:               475
LACNIC Region transit ASes present in the Internet Routing Table:   323
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   703
Number of LACNIC addresses announced to Internet:             118410536
    Equivalent to 7 /8s, 14 /16s and 205 /24s
    Percentage of available LACNIC address space announced:        70.6

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       262144-263167 plus ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                   9609
    Total AfriNIC prefixes after maximum aggregation:              2238
    AfriNIC Deaggregation factor:                                  4.29
Prefixes being announced from the AfriNIC address blocks:         10097
    Unique aggregates announced from the AfriNIC address blocks:   3457
AfriNIC Region origin ASes present in the Internet Routing Table:   565
    AfriNIC Prefixes per ASN:                                     17.87
AfriNIC Region origin ASes announcing only one prefix:              169
AfriNIC Region transit ASes present in the Internet Routing Table:  124
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             42634240
    Equivalent to 2 /8s, 138 /16s and 140 /24s
    Percentage of available AfriNIC address space announced:       42.4

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2964      11558         900   Korea Telecom (KIX)
17974     2430        829          54   PT TELEKOMUNIKASI INDONESIA
 7545     1801        301          88   TPG Internet Pty Ltd
 4755     1618        376         159   TATA Communications formerly 
 9829     1407       1154          41   BSNL National Internet Backbo
 9583     1189         88         507   Sify Limited
 4808     1111       2056         315   CNCGROUP IP network: China169
 7552     1107       1062          11   Vietel Corporation
24560     1034        385         161   Bharti Airtel Ltd., Telemedia
 9498     1018        310          73   BHARTI Airtel Ltd.

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

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7029     3202        991         189   Windstream Communications Inc
 6389     3169       3723         161   bellsouth.net, inc. 
18566     2084        382         180   Covad Communications 
22773     1971       2931         129   Cox Communications, Inc.
 1785     1927        678         128   PaeTec Communications, Inc.
20115     1667       1585         628   Charter Communications 
 4323     1592       1153         392   Time Warner Telecom
30036     1349        272         751   Mediacom Communications Corp 
 7018     1261      10289         843   AT&T WorldNet Services
 7011     1222        334         692   Citizens Utilities 

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8402     1781        544          16   Corbina telecom
12479      851        776          64   Uni2 Autonomous System
34984      824        207         197   BILISIM TELEKOM
31148      726         37           9   FreeNet ISP
13188      720         93         137   Educational Network
 6830      715       2313         438   UPC Distribution Services
20940      706        225         545   Akamai Technologies European 
58113      601         66         364   LIR DATACENTER TELECOM SRL
 8551      595        364          61   Bezeq International
 3320      497       8440         407   Deutsche Telekom AG

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

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     2243        382         204   TVCABLE BOGOTA 
28573     2152       1281          63   NET Servicos de Comunicao S.A
 7303     1662       1132         202   Telecom Argentina Stet-France
 8151     1596       3024         356   UniNet S.A. de C.V. 
 6503     1538        435          67   AVANTEL, S.A. 
27947      745         77          91   Telconet S.A
 3816      656        309          69   Empresa Nacional de Telecomun
14420      594         90         103   CORPORACION NACIONAL DE TELEC
11172      589         85          65   Servicios Alestra S.A de C.V 
 7738      582       1178          33   Telecomunicacoes da Bahia S.A

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

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
24863      896        275          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 8452      558        958          13   TEDATA
 6713      516        650          19   Itissalat Al-MAGHRIB
24835      287         80           8   RAYA Telecom - Egypt
 3741      267        906         225   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      172        697          88   MTN Network Solutions

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

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7029     3202        991         189   Windstream Communications Inc
 6389     3169       3723         161   bellsouth.net, inc. 
 4766     2964      11558         900   Korea Telecom (KIX)
17974     2430        829          54   PT TELEKOMUNIKASI INDONESIA
10620     2243        382         204   TVCABLE BOGOTA 
28573     2152       1281          63   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
22773     1971       2931         129   Cox Communications, Inc.
 1785     1927        678         128   PaeTec Communications, Inc.
 7545     1801        301          88   TPG Internet Pty Ltd

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

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

  ASN   No of nets  Net Savings Description
 6389      3169        3008      bellsouth.net, inc. 
17974      2430        2376      PT TELEKOMUNIKASI INDONESIA
28573      2152        2089      NET Servicos de Comunicao S.A
 4766      2964        2064      Korea Telecom (KIX)
10620      2243        2039      TVCABLE BOGOTA 
18566      2084        1904      Covad Communications 
22773      1971        1842      Cox Communications, Inc.
 1785      1927        1799      PaeTec Communications, Inc.
 8402      1781        1765      Corbina telecom
 7545      1801        1713      TPG Internet Pty Ltd

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

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

Bad AS  Designation  Network              Transit AS  Description
59505   UNALLOCATED  5.2.65.0/24          50673       Serverius AS
59505   UNALLOCATED  5.2.66.0/24          50673       Serverius AS
61408   UNALLOCATED  5.56.0.0/21            174       Cogent Communication
59414   UNALLOCATED  5.102.144.0/21       15576       Nextra backbone in D
59395   UNALLOCATED  5.133.16.0/21         3549       Global Crossing 
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH
59521   UNALLOCATED  5.134.192.0/21       29518       Labs2
59441   UNALLOCATED  5.144.128.0/21       50810       Mobin Net Communicat
59581   UNALLOCATED  5.149.8.0/21         25577       C4L main AS
59457   UNALLOCATED  5.149.64.0/24        35567       DASTO semtel d.o.o.

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
128.0.24.0/21        41794     Altline LLC
128.0.64.0/22        49466     Declic Telecom SAS
128.0.68.0/22        49466     Declic Telecom SAS
128.0.72.0/21        23456     32-bit ASN transition
128.0.80.0/20        52041     Timer LTD
128.0.104.0/23       51848     FOP Gabidullina Ludmila Nikol
128.0.106.0/24       23456     32-bit ASN transition
128.0.128.0/20       29285     AMT closed joint-stock compan
128.0.144.0/22       59675     >>UNKNOWN<<
128.0.160.0/21       23456     32-bit ASN transition

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

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
14.192.0.0/22        45464     Room 201, TGU Bldg
14.192.4.0/22        45464     Room 201, TGU Bldg
14.192.8.0/22        45464     Room 201, TGU Bldg
14.192.12.0/22       45464     Room 201, TGU Bldg
14.192.16.0/22       45464     Room 201, TGU Bldg
14.192.20.0/22       45464     Room 201, TGU Bldg
14.192.24.0/22       45464     Room 201, TGU Bldg
14.192.28.0/22       45464     Room 201, TGU Bldg
27.112.114.0/24      23884     Proimage Engineering and Comm
41.220.80.0/24       38925     DAC AS Germany

Complete listing at http://thyme.rand.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        /8:18       /9:14      /10:29      /11:87      /12:243     
/13:478     /14:850     /15:1548    /16:12449   /17:6540    /18:10885   
/19:21262   /20:30632   /21:32608   /22:43083   /23:40287   /24:224132  
/25:1350    /26:1695    /27:904     /28:182     /29:77      /30:16      
/31:0       /32:25      

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

  ASN   No of nets  Total ann.   Description
 7029     2643          3202      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1786          3169      bellsouth.net, inc. 
 8402     1482          1781      Corbina telecom
22773     1300          1971      Cox Communications, Inc.
30036     1266          1349      Mediacom Communications Corp 
11492     1150          1185      Cable One 
 6503     1054          1538      AVANTEL, S.A. 
 1785     1017          1927      PaeTec Communications, Inc.
 7011      957          1222      Citizens Utilities 

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

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

   1:646       2:799       3:1         4:13        5:589       6:3      
   8:471      12:1945     13:3        14:685      15:11       16:3      
  17:6        20:27       23:211      24:1808     27:1393     31:1031   
  32:54       33:2        34:2        36:7        37:937      38:805    
  39:2        40:137      41:2690     42:176      44:3        46:1629   
  47:2        49:473      50:601      52:12       54:27       55:7      
  56:4        57:27       58:984      59:545      60:237      61:1291   
  62:949      63:1988     64:4244     65:2183     66:4469     67:2092   
  68:1155     69:3207     70:930      71:505      72:1874     74:2603   
  75:479      76:267      77:976      78:1001     79:510      80:1234   
  81:981      82:626      83:541      84:526      85:1154     86:495    
  87:941      88:358      89:1744     90:306      91:5293     92:581    
  93:1385     94:1700     95:1313     96:411      97:324      98:970    
  99:39      100:31      101:289     103:1735    105:514     106:120    
 107:200     108:477     109:1625    110:828     111:976     112:437    
 113:717     114:668     115:875     116:889     117:762     118:958    
 119:1222    120:361     121:694     122:1691    123:1158    124:1338   
 125:1276    128:578     129:199     130:276     131:644     132:310    
 133:142     134:252     135:61      136:228     137:244     138:336    
 139:176     140:491     141:294     142:493     143:377     144:497    
 145:82      146:526     147:273     148:725     149:327     150:159    
 151:206     152:452     153:183     154:21      155:433     156:226    
 157:365     158:286     159:670     160:333     161:414     162:367    
 163:191     164:710     165:448     166:515     167:559     168:1000   
 169:129     170:914     171:154     172:6       173:1712    174:632    
 175:457     176:736     177:1408    178:1623    180:1361    181:166    
 182:1109    183:294     184:615     185:50      186:2251    187:1396   
 188:1730    189:1621    190:5939    192:6029    193:5401    194:4127   
 195:3451    196:1231    197:249     198:3880    199:5076    200:6017   
 201:1968    202:8685    203:8726    204:4395    205:2530    206:2744   
 207:2807    208:4019    209:3597    210:2828    211:1531    212:2087   
 213:1839    214:881     215:75      216:5139    217:1551    218:576    
 219:308     220:1250    221:529     222:337     223:403    

End of report