Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 18 18:32:38 UTC 2013


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 19 Jan, 2013

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

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

BGP routing table entries examined:                              438891
    Prefixes after maximum aggregation:                          181575
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     216035
Total ASes present in the Internet Routing Table:                 43066
    Prefixes per ASN:                                             10.19
Origin-only ASes present in the Internet Routing Table:           34033
Origin ASes announcing only one prefix:                           15897
Transit ASes present in the Internet Routing Table:                5730
Transit-only ASes present in the Internet Routing Table:            135
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      32
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               378
    Unregistered ASNs in the Routing Table:                         127
Number of 32-bit ASNs allocated by the RIRs:                       3668
Number of 32-bit ASNs visible in the Routing Table:                3303
Prefixes from 32-bit ASNs in the Routing Table:                    9072
Special use prefixes present in the Routing Table:                   16
Prefixes being announced from unallocated address space:            190
Number of addresses announced to Internet:                   2628231852
    Equivalent to 156 /8s, 167 /16s and 162 /24s
    Percentage of available address space announced:               71.0
    Percentage of allocated address space announced:               71.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.1
Total number of prefixes smaller than registry allocations:      154509

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

Prefixes being announced by APNIC Region ASes:                   105723
    Total APNIC prefixes after maximum aggregation:               32993
    APNIC Deaggregation factor:                                    3.20
Prefixes being announced from the APNIC address blocks:          106736
    Unique aggregates announced from the APNIC address blocks:    43694
APNIC Region origin ASes present in the Internet Routing Table:    4816
    APNIC Prefixes per ASN:                                       22.16
APNIC Region origin ASes announcing only one prefix:               1244
APNIC Region transit ASes present in the Internet Routing Table:    811
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    411
Number of APNIC addresses announced to Internet:              717390240
    Equivalent to 42 /8s, 194 /16s and 129 /24s
    Percentage of available APNIC address space announced:         83.8

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:                    155380
    Total ARIN prefixes after maximum aggregation:                78597
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           156021
    Unique aggregates announced from the ARIN address blocks:     70747
ARIN Region origin ASes present in the Internet Routing Table:    15392
    ARIN Prefixes per ASN:                                        10.14
ARIN Region origin ASes announcing only one prefix:                5807
ARIN Region transit ASes present in the Internet Routing Table:    1589
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1091767936
    Equivalent to 65 /8s, 19 /16s and 14 /24s
    Percentage of available ARIN address space announced:          57.8

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:                    112910
    Total RIPE prefixes after maximum aggregation:                58438
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           115981
    Unique aggregates announced from the RIPE address blocks:     74317
RIPE Region origin ASes present in the Internet Routing Table:    17025
    RIPE Prefixes per ASN:                                         6.81
RIPE Region origin ASes announcing only one prefix:                8151
RIPE Region transit ASes present in the Internet Routing Table:    2782
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2132
Number of RIPE addresses announced to Internet:               653036644
    Equivalent to 38 /8s, 236 /16s and 140 /24s
    Percentage of available RIPE address space announced:          94.9

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:                   45853
    Total LACNIC prefixes after maximum aggregation:               9114
    LACNIC Deaggregation factor:                                   5.03
Prefixes being announced from the LACNIC address blocks:          49564
    Unique aggregates announced from the LACNIC address blocks:   23413
LACNIC Region origin ASes present in the Internet Routing Table:   1778
    LACNIC Prefixes per ASN:                                      27.88
LACNIC Region origin ASes announcing only one prefix:               512
LACNIC Region transit ASes present in the Internet Routing Table:   332
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   738
Number of LACNIC addresses announced to Internet:             121459752
    Equivalent to 7 /8s, 61 /16s and 84 /24s
    Percentage of available LACNIC address space announced:        72.4

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:                   9826
    Total AfriNIC prefixes after maximum aggregation:              2381
    AfriNIC Deaggregation factor:                                  4.13
Prefixes being announced from the AfriNIC address blocks:         10399
    Unique aggregates announced from the AfriNIC address blocks:   3695
AfriNIC Region origin ASes present in the Internet Routing Table:   587
    AfriNIC Prefixes per ASN:                                     17.72
AfriNIC Region origin ASes announcing only one prefix:              183
AfriNIC Region transit ASes present in the Internet Routing Table:  127
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:    5
Number of AfriNIC addresses announced to Internet:             44219904
    Equivalent to 2 /8s, 162 /16s and 190 /24s
    Percentage of available AfriNIC address space announced:       43.9

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     2939      11556         920   Korea Telecom (KIX)
17974     2474        829          53   PT TELEKOMUNIKASI INDONESIA
 7545     1818        301          86   TPG Internet Pty Ltd
 4755     1668        381         175   TATA Communications formerly 
 9829     1425       1156          42   BSNL National Internet Backbo
 9583     1201         89         502   Sify Limited
 7552     1147       1070          12   Vietel Corporation
 4808     1125       2040         316   CNCGROUP IP network: China169
 9498     1050        310          74   BHARTI Airtel Ltd.
24560     1037        385         160   Bharti Airtel Ltd., Telemedia

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
 6389     3107       3700         125   bellsouth.net, inc. 
 7029     2286       1265         212   Windstream Communications Inc
18566     2081        382         180   Covad Communications 
22773     1960       2931         128   Cox Communications, Inc.
 1785     1947        678         124   PaeTec Communications, Inc.
20115     1686       1606         626   Charter Communications 
 4323     1601       1155         395   Time Warner Telecom
30036     1348        287         698   Mediacom Communications Corp 
 7018     1298      10550         860   AT&T WorldNet Services
 7011     1206        321         685   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     1836        544          16   Corbina telecom
 2118     1432         97          13   EUnet/RELCOM Autonomous Syste
34984      917        227         211   BILISIM TELEKOM
12479      833        778          65   Uni2 Autonomous System
13188      784         96          91   Educational Network
31148      744         38          14   FreeNet ISP
20940      724        242         574   Akamai Technologies European 
 6830      713       2313         434   UPC Distribution Services
 8551      653        367          39   Bezeq International
58113      633         70         378   LIR DATACENTER TELECOM SRL

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     2290        391         229   TVCABLE BOGOTA 
28573     2267       1302          78   NET Servicos de Comunicao S.A
 7303     1670       1139         204   Telecom Argentina Stet-France
 8151     1532       2877         364   UniNet S.A. de C.V. 
 6503     1454        435          67   AVANTEL, S.A. 
27947      771         85          96   Telconet S.A
18881      741        716          18   Global Village Telecom 
 3816      672        306          85   Empresa Nacional de Telecomun
11172      603         86          67   Servicios Alestra S.A de C.V 
 7738      587       1242          34   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      890        275          36   LINKdotNET AS number
36998      774         80           4   MOBITEL
 8452      545        958          13   TEDATA
 6713      499        602          20   Itissalat Al-MAGHRIB
24835      282         80           8   RAYA Telecom - Egypt
 3741      266        906         224   The Internet Solution 
12258      193         28          67   Vodacom Internet Company 
16637      192        696          91   MTN Network Solutions
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom

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
 6389     3107       3700         125   bellsouth.net, inc. 
 4766     2939      11556         920   Korea Telecom (KIX)
17974     2474        829          53   PT TELEKOMUNIKASI INDONESIA
10620     2290        391         229   TVCABLE BOGOTA 
 7029     2286       1265         212   Windstream Communications Inc
28573     2267       1302          78   NET Servicos de Comunicao S.A
18566     2081        382         180   Covad Communications 
22773     1960       2931         128   Cox Communications, Inc.
 1785     1947        678         124   PaeTec Communications, Inc.
 8402     1836        544          16   Corbina telecom

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

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

  ASN   No of nets  Net Savings Description
17974      2474        2421      PT TELEKOMUNIKASI INDONESIA
28573      2267        2189      NET Servicos de Comunicao S.A
 7029      2286        2074      Windstream Communications Inc
10620      2290        2061      TVCABLE BOGOTA 
 4766      2939        2019      Korea Telecom (KIX)
18566      2081        1901      Covad Communications 
22773      1960        1832      Cox Communications, Inc.
 1785      1947        1823      PaeTec Communications, Inc.
 8402      1836        1820      Corbina telecom
 7545      1818        1732      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
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 
26064   UNALLOCATED  12.149.37.0/24        7018       AT&T WorldNet Servic

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

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

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.24.0/21        41794     Altline LLC
128.0.60.0/23        57417     INTERNET TASMANIA SRL
128.0.62.0/23        57417     INTERNET TASMANIA SRL
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

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

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

Network            Origin AS  Description
27.112.114.0/24      23884     Proimage Engineering and Comm
31.210.16.0/22       15657     Neural Networks ASN
41.222.80.0/21       37110     Moztel LDA
62.12.96.0/19        38478     SunnyVision Limited
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.185.224.0/24      27431     JTL Networks Inc.
64.185.225.0/24      27431     JTL Networks Inc.
64.185.226.0/24      27431     JTL Networks Inc.
64.185.227.0/24      27431     JTL Networks Inc.

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       /9:13      /10:29      /11:88      /12:246     
/13:479     /14:864     /15:1555    /16:12524   /17:6581    /18:10940   
/19:21637   /20:31137   /21:33145   /22:44518   /23:40787   /24:230150  
/25:1317    /26:1698    /27:870     /28:182     /29:74      /30:17      
/31:0       /32:22      

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

  ASN   No of nets  Total ann.   Description
18566     2031          2081      Covad Communications 
 6389     1771          3107      bellsouth.net, inc. 
 7029     1643          2286      Windstream Communications Inc
 8402     1549          1836      Corbina telecom
22773     1293          1960      Cox Communications, Inc.
30036     1245          1348      Mediacom Communications Corp 
11492     1157          1194      Cable One 
 1785     1029          1947      PaeTec Communications, Inc.
 6503      980          1454      AVANTEL, S.A. 
 7011      955          1206      Citizens Utilities 

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

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

   1:697       2:767       3:3         4:13        5:721       6:3      
   8:488      12:1928     13:3        14:710      15:11       16:3      
  17:8        20:27       23:224      24:1800     27:1483     31:1121   
  32:54       33:2        34:3        36:9        37:1175     38:843    
  39:2        40:138      41:2668     42:180      44:3        46:1736   
  47:1        49:536      50:652      52:12       54:28       55:7      
  57:28       58:1075     59:560      60:242      61:1316     62:1019   
  63:2050     64:4303     65:2163     66:4315     67:2086     68:1120   
  69:3253     70:859      71:537      72:1879     74:2545     75:418    
  76:297      77:1020     78:1026     79:536      80:1229     81:986    
  82:662      83:537      84:529      85:1157     86:470      87:969    
  88:364      89:1728     90:283      91:5397     92:608      93:1652   
  94:1984     95:1519     96:487      97:338      98:1055     99:52     
 100:31      101:298     103:2019    105:528     106:129     107:208    
 108:503     109:1726    110:844     111:996     112:467     113:749    
 114:684     115:926     116:905     117:782     118:964     119:1284   
 120:328     121:700     122:1730    123:1180    124:1324    125:1297   
 128:564     129:201     130:308     131:642     132:326     133:142    
 134:255     135:62      136:218     137:232     138:340     139:159    
 140:216     141:311     142:519     143:366     144:481     145:89     
 146:525     147:329     148:733     149:335     150:159     151:257    
 152:399     153:188     154:24      155:417     156:234     157:385    
 158:257     159:698     160:335     161:411     162:366     163:195    
 164:585     165:459     166:457     167:571     168:1005    169:131    
 170:993     171:162     172:4       173:1551    174:755     175:422    
 176:1036    177:1584    178:1678    180:1342    181:211     182:1165   
 183:313     184:633     185:169     186:2227    187:1463    188:1892   
 189:1562    190:6371    192:6157    193:5849    194:4671    195:3658   
 196:1247    197:316     198:4082    199:5173    200:5977    201:2143   
 202:8800    203:8744    204:4467    205:2548    206:2794    207:2785   
 208:4071    209:3519    210:2907    211:1561    212:1999    213:1878   
 214:899     215:91      216:5060    217:1578    218:599     219:325    
 220:1266    221:528     222:324     223:401    

End of report



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