Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 4 18:44:28 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 05 Jan, 2013

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

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

BGP routing table entries examined:                              438213
    Prefixes after maximum aggregation:                          181057
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     215491
Total ASes present in the Internet Routing Table:                 42975
    Prefixes per ASN:                                             10.20
Origin-only ASes present in the Internet Routing Table:           33999
Origin ASes announcing only one prefix:                           15908
Transit ASes present in the Internet Routing Table:                5711
Transit-only ASes present in the Internet Routing Table:            139
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      31
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               374
    Unregistered ASNs in the Routing Table:                         129
Number of 32-bit ASNs allocated by the RIRs:                       3618
Number of 32-bit ASNs visible in the Routing Table:                3265
Prefixes from 32-bit ASNs in the Routing Table:                    8876
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            178
Number of addresses announced to Internet:                   2622004844
    Equivalent to 156 /8s, 72 /16s and 158 /24s
    Percentage of available address space announced:               70.8
    Percentage of allocated address space announced:               70.8
    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:      154787

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

Prefixes being announced by APNIC Region ASes:                   105421
    Total APNIC prefixes after maximum aggregation:               32827
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          106384
    Unique aggregates announced from the APNIC address blocks:    43509
APNIC Region origin ASes present in the Internet Routing Table:    4810
    APNIC Prefixes per ASN:                                       22.12
APNIC Region origin ASes announcing only one prefix:               1246
APNIC Region transit ASes present in the Internet Routing Table:    804
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    404
Number of APNIC addresses announced to Internet:              716927840
    Equivalent to 42 /8s, 187 /16s and 115 /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:                    156128
    Total ARIN prefixes after maximum aggregation:                78474
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           156813
    Unique aggregates announced from the ARIN address blocks:     70729
ARIN Region origin ASes present in the Internet Routing Table:    15368
    ARIN Prefixes per ASN:                                        10.20
ARIN Region origin ASes announcing only one prefix:                5812
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:                          28
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1090414976
    Equivalent to 64 /8s, 254 /16s and 105 /24s
    Percentage of available ARIN address space announced:          57.7

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:                    112772
    Total RIPE prefixes after maximum aggregation:                58370
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           115760
    Unique aggregates announced from the RIPE address blocks:     74317
RIPE Region origin ASes present in the Internet Routing Table:    17013
    RIPE Prefixes per ASN:                                         6.80
RIPE Region origin ASes announcing only one prefix:                8158
RIPE Region transit ASes present in the Internet Routing Table:    2767
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2106
Number of RIPE addresses announced to Internet:               650081892
    Equivalent to 38 /8s, 191 /16s and 118 /24s
    Percentage of available RIPE address space announced:          94.5

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:                   45236
    Total LACNIC prefixes after maximum aggregation:               8993
    LACNIC Deaggregation factor:                                   5.03
Prefixes being announced from the LACNIC address blocks:          48856
    Unique aggregates announced from the LACNIC address blocks:   23141
LACNIC Region origin ASes present in the Internet Routing Table:   1764
    LACNIC Prefixes per ASN:                                      27.70
LACNIC Region origin ASes announcing only one prefix:               504
LACNIC Region transit ASes present in the Internet Routing Table:   335
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   732
Number of LACNIC addresses announced to Internet:             121174312
    Equivalent to 7 /8s, 56 /16s and 249 /24s
    Percentage of available LACNIC address space announced:        72.2

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:                   9660
    Total AfriNIC prefixes after maximum aggregation:              2340
    AfriNIC Deaggregation factor:                                  4.13
Prefixes being announced from the AfriNIC address blocks:         10222
    Unique aggregates announced from the AfriNIC address blocks:   3636
AfriNIC Region origin ASes present in the Internet Routing Table:   585
    AfriNIC Prefixes per ASN:                                     17.47
AfriNIC Region origin ASes announcing only one prefix:              188
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:    6
Number of AfriNIC addresses announced to Internet:             43102208
    Equivalent to 2 /8s, 145 /16s and 176 /24s
    Percentage of available AfriNIC address space announced:       42.8

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     2928      11555         911   Korea Telecom (KIX)
17974     2487        829          54   PT TELEKOMUNIKASI INDONESIA
 7545     1815        301          88   TPG Internet Pty Ltd
 4755     1664        381         175   TATA Communications formerly 
 9829     1409       1155          41   BSNL National Internet Backbo
 9583     1198         89         501   Sify Limited
 7552     1142       1070          12   Vietel Corporation
 4808     1124       2040         316   CNCGROUP IP network: China169
 9498     1052        309          74   BHARTI Airtel Ltd.
24560     1038        385         161   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
 7029     3457       1266         216   Windstream Communications Inc
 6389     3117       3701         131   bellsouth.net, inc. 
18566     2081        382         180   Covad Communications 
22773     1952       2932         131   Cox Communications, Inc.
 1785     1945        678         124   PaeTec Communications, Inc.
20115     1690       1604         620   Charter Communications 
 4323     1596       1155         397   Time Warner Telecom
30036     1354        288         708   Mediacom Communications Corp 
 7018     1293      10549         853   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     1738        544          16   Corbina telecom
 2118     1052         97          15   EUnet/RELCOM Autonomous Syste
34984      904        211         232   BILISIM TELEKOM
12479      869        777          64   Uni2 Autonomous System
13188      770         96         117   Educational Network
31148      743         38          15   FreeNet ISP
20940      734        242         572   Akamai Technologies European 
 6830      714       2313         435   UPC Distribution Services
 8551      658        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     2270        387         207   TVCABLE BOGOTA 
28573     2258       1299          70   NET Servicos de Comunicao S.A
 7303     1674       1139         202   Telecom Argentina Stet-France
 6503     1452        435          67   AVANTEL, S.A. 
 8151     1417       2913         354   UniNet S.A. de C.V. 
18881      747        716          18   Global Village Telecom 
27947      745         85          94   Telconet S.A
 3816      672        309          71   Empresa Nacional de Telecomun
11172      602         86          66   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      878        275          36   LINKdotNET AS number
36998      749         48           3   MOBITEL
 8452      543        958          13   TEDATA
 6713      499        602          20   Itissalat Al-MAGHRIB
24835      291         80           8   RAYA Telecom - Egypt
 3741      267        906         225   The Internet Solution 
12258      193         28          67   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      181        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     3457       1266         216   Windstream Communications Inc
 6389     3117       3701         131   bellsouth.net, inc. 
 4766     2928      11555         911   Korea Telecom (KIX)
17974     2487        829          54   PT TELEKOMUNIKASI INDONESIA
10620     2270        387         207   TVCABLE BOGOTA 
28573     2258       1299          70   NET Servicos de Comunicao S.A
18566     2081        382         180   Covad Communications 
22773     1952       2932         131   Cox Communications, Inc.
 1785     1945        678         124   PaeTec Communications, Inc.
 7545     1815        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      3117        2986      bellsouth.net, inc. 
17974      2487        2433      PT TELEKOMUNIKASI INDONESIA
28573      2258        2188      NET Servicos de Comunicao S.A
10620      2270        2063      TVCABLE BOGOTA 
 4766      2928        2017      Korea Telecom (KIX)
18566      2081        1901      Covad Communications 
22773      1952        1821      Cox Communications, Inc.
 1785      1945        1821      PaeTec Communications, Inc.
 7545      1815        1727      TPG Internet Pty Ltd
 8402      1738        1722      Corbina telecom

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
128.0.64.0/22        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     mywire Datentechnik GmbH

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 
64.66.32.0/20        18864     >>UNKNOWN<<
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.

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      /11:87      /12:245     
/13:478     /14:859     /15:1546    /16:12490   /17:6562    /18:10926   
/19:21636   /20:31075   /21:33048   /22:44245   /23:40846   /24:230123  
/25:1300    /26:1682    /27:871     /28:41      /29:59      /30:13      
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
 7029     2723          3457      Windstream Communications Inc
18566     2031          2081      Covad Communications 
 6389     1773          3117      bellsouth.net, inc. 
 8402     1463          1738      Corbina telecom
22773     1283          1952      Cox Communications, Inc.
30036     1255          1354      Mediacom Communications Corp 
11492     1157          1194      Cable One 
 1785     1027          1945      PaeTec Communications, Inc.
 6503      979          1452      AVANTEL, S.A. 
 7011      954          1206      Citizens Utilities 

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

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

   1:685       2:697       3:3         4:13        5:703       6:3      
   8:477      12:1938     13:3        14:701      15:11       16:3      
  17:6        20:27       23:221      24:1793     27:1473     31:1367   
  32:54       33:2        34:2        36:11       37:1160     38:842    
  39:2        40:139      41:2599     42:180      44:3        46:1705   
  47:3        49:531      50:649      52:12       54:28       55:8      
  57:28       58:1071     59:561      60:236      61:1317     62:1033   
  63:2021     64:4361     65:2200     66:4499     67:2088     68:1197   
  69:3334     70:939      71:551      72:1888     74:2619     75:470    
  76:295      77:1050     78:1034     79:545      80:1214     81:982    
  82:655      83:532      84:530      85:1165     86:463      87:969    
  88:360      89:1737     90:304      91:5387     92:610      93:1617   
  94:1982     95:1618     96:489      97:337      98:983      99:48     
 100:32      101:298     103:1969    105:501     106:125     107:207    
 108:508     109:1743    110:839     111:988     112:470     113:742    
 114:682     115:896     116:900     117:775     118:967     119:1268   
 120:373     121:707     122:1725    123:1168    124:1315    125:1301   
 128:810     129:201     130:309     131:641     132:319     133:142    
 134:255     135:62      136:209     137:232     138:342     139:169    
 140:182     141:300     142:514     143:355     144:490     145:89     
 146:520     147:326     148:727     149:335     150:158     151:248    
 152:398     153:188     154:24      155:413     156:232     157:379    
 158:256     159:680     160:335     161:422     162:370     163:193    
 164:587     165:461     166:464     167:569     168:1005    169:131    
 170:1001    171:164     172:4       173:1590    174:770     175:470    
 176:950     177:1522    178:1705    180:1361    181:189     182:1148   
 183:292     184:656     185:155     186:2175    187:1437    188:1910   
 189:1552    190:6202    192:6103    193:5714    194:4493    195:3607   
 196:1227    197:287     198:4045    199:5162    200:6024    201:2017   
 202:8790    203:8730    204:4475    205:2538    206:2799    207:2773   
 208:4066    209:3665    210:2900    211:1560    212:1995    213:1882   
 214:873     215:91      216:5136    217:1564    218:596     219:323    
 220:1259    221:544     222:323     223:395    

End of report



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