Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 25 18:33:21 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 26 Jan, 2013

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

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

BGP routing table entries examined:                              440067
    Prefixes after maximum aggregation:                          181581
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     216316
Total ASes present in the Internet Routing Table:                 43092
    Prefixes per ASN:                                             10.21
Origin-only ASes present in the Internet Routing Table:           34035
Origin ASes announcing only one prefix:                           15882
Transit ASes present in the Internet Routing Table:                5748
Transit-only ASes present in the Internet Routing Table:            139
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      32
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               383
    Unregistered ASNs in the Routing Table:                         131
Number of 32-bit ASNs allocated by the RIRs:                       3702
Number of 32-bit ASNs visible in the Routing Table:                3309
Prefixes from 32-bit ASNs in the Routing Table:                    9101
Special use prefixes present in the Routing Table:                   16
Prefixes being announced from unallocated address space:            190
Number of addresses announced to Internet:                   2629230732
    Equivalent to 156 /8s, 182 /16s and 224 /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:               94.2
Total number of prefixes smaller than registry allocations:      155150

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

Prefixes being announced by APNIC Region ASes:                   105770
    Total APNIC prefixes after maximum aggregation:               32979
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          106800
    Unique aggregates announced from the APNIC address blocks:    43763
APNIC Region origin ASes present in the Internet Routing Table:    4813
    APNIC Prefixes per ASN:                                       22.19
APNIC Region origin ASes announcing only one prefix:               1241
APNIC Region transit ASes present in the Internet Routing Table:    810
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:    413
Number of APNIC addresses announced to Internet:              717487744
    Equivalent to 42 /8s, 195 /16s and 254 /24s
    Percentage of available APNIC address space announced:         83.9

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:                    155256
    Total ARIN prefixes after maximum aggregation:                78615
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           155898
    Unique aggregates announced from the ARIN address blocks:     70752
ARIN Region origin ASes present in the Internet Routing Table:    15412
    ARIN Prefixes per ASN:                                        10.12
ARIN Region origin ASes announcing only one prefix:                5816
ARIN Region transit ASes present in the Internet Routing Table:    1597
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:              1091710336
    Equivalent to 65 /8s, 18 /16s and 45 /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:                    113291
    Total RIPE prefixes after maximum aggregation:                58417
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           116355
    Unique aggregates announced from the RIPE address blocks:     74458
RIPE Region origin ASes present in the Internet Routing Table:    17017
    RIPE Prefixes per ASN:                                         6.84
RIPE Region origin ASes announcing only one prefix:                8133
RIPE Region transit ASes present in the Internet Routing Table:    2783
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:    2143
Number of RIPE addresses announced to Internet:               653189988
    Equivalent to 38 /8s, 238 /16s and 227 /24s
    Percentage of available RIPE address space announced:          95.0

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:                   46280
    Total LACNIC prefixes after maximum aggregation:               9120
    LACNIC Deaggregation factor:                                   5.07
Prefixes being announced from the LACNIC address blocks:          49993
    Unique aggregates announced from the LACNIC address blocks:   23482
LACNIC Region origin ASes present in the Internet Routing Table:   1787
    LACNIC Prefixes per ASN:                                      27.98
LACNIC Region origin ASes announcing only one prefix:               513
LACNIC Region transit ASes present in the Internet Routing Table:   335
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:   729
Number of LACNIC addresses announced to Internet:             122320936
    Equivalent to 7 /8s, 74 /16s and 120 /24s
    Percentage of available LACNIC address space announced:        72.9

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:                  10236
    Total AfriNIC prefixes after maximum aggregation:              2399
    AfriNIC Deaggregation factor:                                  4.27
Prefixes being announced from the AfriNIC address blocks:         10831
    Unique aggregates announced from the AfriNIC address blocks:   3692
AfriNIC Region origin ASes present in the Internet Routing Table:   586
    AfriNIC Prefixes per ASN:                                     18.48
AfriNIC Region origin ASes announcing only one prefix:              179
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:                       17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:             44169216
    Equivalent to 2 /8s, 161 /16s and 248 /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     1824        301          88   TPG Internet Pty Ltd
 4755     1669        380         174   TATA Communications formerly 
 9829     1426       1152          45   BSNL National Internet Backbo
 9583     1204         89         502   Sify Limited
 7552     1140       1070          12   Vietel Corporation
 4808     1124       2040         316   CNCGROUP IP network: China169
 9498     1052        310          75   BHARTI Airtel Ltd.
24560     1040        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     3100       3700         119   bellsouth.net, inc. 
 7029     2286       1265         211   Windstream Communications Inc
18566     2081        382         180   Covad Communications 
22773     1961       2931         128   Cox Communications, Inc.
 1785     1949        678         124   PaeTec Communications, Inc.
20115     1687       1607         627   Charter Communications 
 4323     1598       1155         394   Time Warner Telecom
30036     1356        289         692   Mediacom Communications Corp 
 7018     1299      10550         861   AT&T WorldNet Services
 7011     1207        319         687   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     1869        544          16   Corbina telecom
 2118     1432         97          13   EUnet/RELCOM Autonomous Syste
34984      932        231         205   BILISIM TELEKOM
13188      841         99          22   Educational Network
12479      833        778          65   Uni2 Autonomous System
31148      747         38          16   FreeNet ISP
20940      732        247         581   Akamai Technologies European 
 8551      715        367          39   Bezeq International
 6830      713       2313         434   UPC Distribution Services
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
28573     2329       1315          81   NET Servicos de Comunicao S.A
10620     2301        394         224   TVCABLE BOGOTA 
 7303     1671       1139         205   Telecom Argentina Stet-France
 8151     1538       2894         372   UniNet S.A. de C.V. 
 6503     1454        435          67   AVANTEL, S.A. 
27947      772         85          95   Telconet S.A
18881      755        716          18   Global Village Telecom 
14754      722         76         161   Telgua S. A. 
 3816      674        306          85   Empresa Nacional de Telecomun
11172      603         86          67   Servicios Alestra S.A de C.V 

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
36998     1091         80           4   MOBITEL
24863      896        275          36   LINKdotNET AS number
 8452      553        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 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      190        696          90   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
 6389     3100       3700         119   bellsouth.net, inc. 
 4766     2939      11556         920   Korea Telecom (KIX)
17974     2474        829          53   PT TELEKOMUNIKASI INDONESIA
28573     2329       1315          81   NET Servicos de Comunicao S.A
10620     2301        394         224   TVCABLE BOGOTA 
 7029     2286       1265         211   Windstream Communications Inc
18566     2081        382         180   Covad Communications 
22773     1961       2931         128   Cox Communications, Inc.
 1785     1949        678         124   PaeTec Communications, Inc.
 8402     1869        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      2329        2248      NET Servicos de Comunicao S.A
10620      2301        2077      TVCABLE BOGOTA 
 7029      2286        2075      Windstream Communications Inc
 4766      2939        2019      Korea Telecom (KIX)
18566      2081        1901      Covad Communications 
 8402      1869        1853      Corbina telecom
22773      1961        1833      Cox Communications, Inc.
 1785      1949        1825      PaeTec Communications, Inc.
 7545      1824        1736      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
128.0.72.0/21        23456     32-bit ASN transition
128.0.80.0/20        52041     Timer LTD
128.0.96.0/21        12886     LEWTelNet GmbH
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

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     /14:866     /15:1555    /16:12526   /17:6587    /18:10922   
/19:21668   /20:31115   /21:33183   /22:44851   /23:40705   /24:231073  
/25:1320    /26:1666    /27:866     /28:181     /29:76      /30:17      
/31:0       /32:17      

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

  ASN   No of nets  Total ann.   Description
18566     2031          2081      Covad Communications 
 6389     1770          3100      bellsouth.net, inc. 
 7029     1643          2286      Windstream Communications Inc
 8402     1581          1869      Corbina telecom
22773     1292          1961      Cox Communications, Inc.
30036     1250          1356      Mediacom Communications Corp 
11492     1158          1195      Cable One 
36998     1085          1091      MOBITEL
 1785     1030          1949      PaeTec Communications, Inc.
 6503      980          1454      AVANTEL, S.A. 

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

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

   1:700       2:777       3:3         4:13        5:722       6:3      
   8:490      12:1927     13:3        14:711      15:11       16:3      
  17:8        20:27       23:221      24:1803     27:1483     31:1132   
  32:54       33:2        34:5        36:9        37:1212     38:851    
  39:2        40:139      41:2721     42:180      44:4        46:1739   
  47:1        49:533      50:669      52:12       54:28       55:3      
  57:28       58:1074     59:560      60:249      61:1315     62:1034   
  63:2039     64:4315     65:2162     66:4265     67:2021     68:1120   
  69:3231     70:857      71:535      72:1879     74:2545     75:426    
  76:294      77:1030     78:1036     79:564      80:1224     81:980    
  82:647      83:535      84:573      85:1160     86:474      87:971    
  88:367      89:1732     90:285      91:5383     92:608      93:1651   
  94:2013     95:1592     96:484      97:331      98:1051     99:52     
 100:30      101:292     103:2031    105:530     106:129     107:208    
 108:503     109:1740    110:848     111:1001    112:473     113:750    
 114:676     115:926     116:886     117:785     118:964     119:1285   
 120:328     121:699     122:1723    123:1172    124:1315    125:1298   
 128:565     129:202     130:311     131:626     132:321     133:142    
 134:255     135:62      136:219     137:231     138:340     139:156    
 140:207     141:313     142:516     143:373     144:476     145:90     
 146:523     147:332     148:731     149:341     150:160     151:286    
 152:398     153:190     154:24      155:450     156:237     157:393    
 158:258     159:703     160:334     161:420     162:367     163:202    
 164:579     165:458     166:459     167:571     168:1005    169:131    
 170:1005    171:163     172:4       173:1555    174:757     175:427    
 176:1018    177:1626    178:1689    180:1375    181:214     182:1162   
 183:312     184:634     185:182     186:2240    187:1468    188:1898   
 189:1545    190:6512    192:6170    193:5835    194:4669    195:3659   
 196:1264    197:639     198:4078    199:5169    200:6015    201:2174   
 202:8803    203:8749    204:4468    205:2541    206:2798    207:2786   
 208:4064    209:3523    210:2902    211:1558    212:2011    213:1878   
 214:919     215:91      216:5048    217:1571    218:594     219:326    
 220:1267    221:527     222:337     223:412    

End of report



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