Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 28 18:58:58 UTC 2012


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 29 Dec, 2012

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

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

BGP routing table entries examined:                              438252
    Prefixes after maximum aggregation:                          181041
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     215672
Total ASes present in the Internet Routing Table:                 42943
    Prefixes per ASN:                                             10.21
Origin-only ASes present in the Internet Routing Table:           33998
Origin ASes announcing only one prefix:                           15900
Transit ASes present in the Internet Routing Table:                5694
Transit-only ASes present in the Internet Routing Table:            137
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:               373
    Unregistered ASNs in the Routing Table:                         132
Number of 32-bit ASNs allocated by the RIRs:                       3609
Number of 32-bit ASNs visible in the Routing Table:                3251
Prefixes from 32-bit ASNs in the Routing Table:                    8795
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            173
Number of addresses announced to Internet:                   2620507916
    Equivalent to 156 /8s, 49 /16s and 199 /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:      154887

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

Prefixes being announced by APNIC Region ASes:                   105461
    Total APNIC prefixes after maximum aggregation:               32809
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          106390
    Unique aggregates announced from the APNIC address blocks:    43557
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:               1248
APNIC Region transit ASes present in the Internet Routing Table:    798
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:    393
Number of APNIC addresses announced to Internet:              716761856
    Equivalent to 42 /8s, 184 /16s and 235 /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:                    155868
    Total ARIN prefixes after maximum aggregation:                78374
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           156536
    Unique aggregates announced from the ARIN address blocks:     70647
ARIN Region origin ASes present in the Internet Routing Table:    15348
    ARIN Prefixes per ASN:                                        10.20
ARIN Region origin ASes announcing only one prefix:                5807
ARIN Region transit ASes present in the Internet Routing Table:    1591
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:              1089154688
    Equivalent to 64 /8s, 235 /16s and 46 /24s
    Percentage of available ARIN address space announced:          57.6

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:                    112934
    Total RIPE prefixes after maximum aggregation:                58409
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           115880
    Unique aggregates announced from the RIPE address blocks:     74516
RIPE Region origin ASes present in the Internet Routing Table:    17011
    RIPE Prefixes per ASN:                                         6.81
RIPE Region origin ASes announcing only one prefix:                8152
RIPE Region transit ASes present in the Internet Routing Table:    2755
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2104
Number of RIPE addresses announced to Internet:               650459748
    Equivalent to 38 /8s, 197 /16s and 58 /24s
    Percentage of available RIPE address space announced:          94.6

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:                   45330
    Total LACNIC prefixes after maximum aggregation:               9040
    LACNIC Deaggregation factor:                                   5.01
Prefixes being announced from the LACNIC address blocks:          48936
    Unique aggregates announced from the LACNIC address blocks:   23162
LACNIC Region origin ASes present in the Internet Routing Table:   1766
    LACNIC Prefixes per ASN:                                      27.71
LACNIC Region origin ASes announcing only one prefix:               503
LACNIC Region transit ASes present in the Internet Routing Table:   338
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:   731
Number of LACNIC addresses announced to Internet:             120924712
    Equivalent to 7 /8s, 53 /16s and 42 /24s
    Percentage of available LACNIC address space announced:        72.1

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:                   9744
    Total AfriNIC prefixes after maximum aggregation:              2356
    AfriNIC Deaggregation factor:                                  4.14
Prefixes being announced from the AfriNIC address blocks:         10337
    Unique aggregates announced from the AfriNIC address blocks:   3636
AfriNIC Region origin ASes present in the Internet Routing Table:   589
    AfriNIC Prefixes per ASN:                                     17.55
AfriNIC Region origin ASes announcing only one prefix:              190
AfriNIC Region transit ASes present in the Internet Routing Table:  130
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:             42905088
    Equivalent to 2 /8s, 142 /16s and 174 /24s
    Percentage of available AfriNIC address space announced:       42.6

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     2946      11556         914   Korea Telecom (KIX)
17974     2485        829          54   PT TELEKOMUNIKASI INDONESIA
 7545     1815        301          88   TPG Internet Pty Ltd
 4755     1658        381         174   TATA Communications formerly 
 9829     1416       1156          42   BSNL National Internet Backbo
 9583     1183         88         501   Sify Limited
 7552     1147       1070          12   Vietel Corporation
 4808     1123       2040         316   CNCGROUP IP network: China169
 9498     1051        309          74   BHARTI Airtel Ltd.
24560     1037        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     3468       1010         215   Windstream Communications Inc
 6389     3118       3717         132   bellsouth.net, inc. 
18566     2081        382         180   Covad Communications 
22773     1947       2932         131   Cox Communications, Inc.
 1785     1941        678         124   PaeTec Communications, Inc.
20115     1688       1603         618   Charter Communications 
 4323     1597       1155         397   Time Warner Telecom
30036     1356        287         705   Mediacom Communications Corp 
 7018     1294      10534         854   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     1731        544          16   Corbina telecom
 2118     1052         97          15   EUnet/RELCOM Autonomous Syste
34984      895        211         232   BILISIM TELEKOM
12479      869        777          64   Uni2 Autonomous System
13188      768         96         115   Educational Network
31148      743         38          15   FreeNet ISP
20940      734        241         571   Akamai Technologies European 
 6830      714       2313         435   UPC Distribution Services
 8551      637        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     2252       1299          70   NET Servicos de Comunicao S.A
 7303     1674       1139         202   Telecom Argentina Stet-France
 8151     1547       2936         352   UniNet S.A. de C.V. 
 6503     1454        435          67   AVANTEL, S.A. 
27947      745         86          89   Telconet S.A
18881      740        716          18   Global Village Telecom 
 3816      672        309          71   Empresa Nacional de Telecomun
11172      601         86          66   Servicios Alestra S.A de C.V 
 7738      588       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      872        275          36   LINKdotNET AS number
36998      749         48           3   MOBITEL
 8452      549        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     3468       1010         215   Windstream Communications Inc
 6389     3118       3717         132   bellsouth.net, inc. 
 4766     2946      11556         914   Korea Telecom (KIX)
17974     2485        829          54   PT TELEKOMUNIKASI INDONESIA
10620     2270        387         207   TVCABLE BOGOTA 
28573     2252       1299          70   NET Servicos de Comunicao S.A
18566     2081        382         180   Covad Communications 
22773     1947       2932         131   Cox Communications, Inc.
 1785     1941        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      3118        2986      bellsouth.net, inc. 
17974      2485        2431      PT TELEKOMUNIKASI INDONESIA
28573      2252        2182      NET Servicos de Comunicao S.A
10620      2270        2063      TVCABLE BOGOTA 
 4766      2946        2032      Korea Telecom (KIX)
18566      2081        1901      Covad Communications 
 1785      1941        1817      PaeTec Communications, Inc.
22773      1947        1816      Cox Communications, Inc.
 7545      1815        1727      TPG Internet Pty Ltd
 8402      1731        1715      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
41.222.80.0/21       37110     Moztel LDA
41.223.108.0/22      36966     >>UNKNOWN<<
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      /12:244     
/13:477     /14:858     /15:1545    /16:12489   /17:6566    /18:10939   
/19:21633   /20:31043   /21:33016   /22:44333   /23:40798   /24:230036  
/25:1304    /26:1682    /27:869     /28:172     /29:69      /30:13      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
 7029     2729          3468      Windstream Communications Inc
18566     2031          2081      Covad Communications 
 6389     1773          3118      bellsouth.net, inc. 
 8402     1455          1731      Corbina telecom
22773     1279          1947      Cox Communications, Inc.
30036     1261          1356      Mediacom Communications Corp 
11492     1157          1194      Cable One 
 1785     1023          1941      PaeTec Communications, Inc.
 6503      980          1454      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)
----------------------------------------------

   1:704       2:692       3:3         4:9         5:701       6:3      
   8:470      12:1929     13:3        14:701      15:11       16:3      
  17:6        20:27       23:221      24:1786     27:1467     31:1349   
  32:54       33:2        34:2        36:11       37:1145     38:841    
  39:2        40:141      41:2658     42:180      44:3        46:1726   
  47:3        49:527      50:656      52:12       54:28       55:8      
  56:1        57:28       58:1071     59:559      60:237      61:1317   
  62:1039     63:2015     64:4348     65:2200     66:4492     67:2086   
  68:1199     69:3330     70:940      71:557      72:1893     74:2622   
  75:475      76:293      77:1052     78:1030     79:524      80:1221   
  81:982      82:661      83:537      84:529      85:1164     86:457    
  87:970      88:362      89:1757     90:304      91:5381     92:613    
  93:1621     94:1988     95:1630     96:489      97:337      98:967    
  99:40      100:31      101:286     103:1974    105:501     106:117    
 107:203     108:510     109:1753    110:834     111:983     112:470    
 113:745     114:642     115:905     116:888     117:775     118:962    
 119:1265    120:372     121:707     122:1727    123:1182    124:1320   
 125:1299    128:811     129:199     130:307     131:643     132:319    
 133:142     134:254     135:62      136:216     137:235     138:344    
 139:169     140:182     141:300     142:516     143:351     144:490    
 145:89      146:518     147:327     148:728     149:335     150:158    
 151:245     152:399     153:188     154:23      155:424     156:231    
 157:379     158:257     159:681     160:335     161:421     162:371    
 163:193     164:584     165:458     166:471     167:569     168:1006   
 169:131     170:988     171:164     172:4       173:1641    174:631    
 175:466     176:947     177:1479    178:1713    180:1364    181:183    
 182:1147    183:287     184:650     185:147     186:2157    187:1449   
 188:1903    189:1566    190:6187    192:6082    193:5720    194:4485   
 195:3602    196:1244    197:289     198:4012    199:5159    200:6032   
 201:2027    202:8859    203:8751    204:4479    205:2543    206:2810   
 207:2808    208:4064    209:3648    210:2911    211:1559    212:2006   
 213:1883    214:859     215:91      216:5135    217:1571    218:596    
 219:321     220:1260    221:544     222:324     223:375    

End of report



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