[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 8 18:33:05 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 09 Feb, 2013

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

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

BGP routing table entries examined:                              442644
    Prefixes after maximum aggregation:                          182109
    Deaggregation factor:                                          2.43
    Unique aggregates announced to Internet:                     217103
Total ASes present in the Internet Routing Table:                 43259
    Prefixes per ASN:                                             10.23
Origin-only ASes present in the Internet Routing Table:           34144
Origin ASes announcing only one prefix:                           15933
Transit ASes present in the Internet Routing Table:                5751
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:                                      29
    Max AS path prepend of ASN ( 35412)                              17
Prefixes from unregistered ASNs in the Routing Table:               379
    Unregistered ASNs in the Routing Table:                         135
Number of 32-bit ASNs allocated by the RIRs:                       3742
Number of 32-bit ASNs visible in the Routing Table:                3364
Prefixes from 32-bit ASNs in the Routing Table:                    9204
Special use prefixes present in the Routing Table:                   17
Prefixes being announced from unallocated address space:            196
Number of addresses announced to Internet:                   2615509516
    Equivalent to 155 /8s, 229 /16s and 130 /24s
    Percentage of available address space announced:               70.6
    Percentage of allocated address space announced:               70.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.3
Total number of prefixes smaller than registry allocations:      156304

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

Prefixes being announced by APNIC Region ASes:                   106381
    Total APNIC prefixes after maximum aggregation:               33119
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          107440
    Unique aggregates announced from the APNIC address blocks:    43969
APNIC Region origin ASes present in the Internet Routing Table:    4818
    APNIC Prefixes per ASN:                                       22.30
APNIC Region origin ASes announcing only one prefix:               1238
APNIC Region transit ASes present in the Internet Routing Table:    801
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:    423
Number of APNIC addresses announced to Internet:              718725120
    Equivalent to 42 /8s, 214 /16s and 224 /24s
    Percentage of available APNIC address space announced:         84.0

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:                    155461
    Total ARIN prefixes after maximum aggregation:                78762
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           156125
    Unique aggregates announced from the ARIN address blocks:     70765
ARIN Region origin ASes present in the Internet Routing Table:    15450
    ARIN Prefixes per ASN:                                        10.11
ARIN Region origin ASes announcing only one prefix:                5837
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:                          29
Number of ARIN region 32-bit ASNs visible in the Routing Table:      18
Number of ARIN addresses announced to Internet:              1075995264
    Equivalent to 64 /8s, 34 /16s and 98 /24s
    Percentage of available ARIN address space announced:          56.9

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:                    114050
    Total RIPE prefixes after maximum aggregation:                58645
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           117158
    Unique aggregates announced from the RIPE address blocks:     74928
RIPE Region origin ASes present in the Internet Routing Table:    17055
    RIPE Prefixes per ASN:                                         6.87
RIPE Region origin ASes announcing only one prefix:                8160
RIPE Region transit ASes present in the Internet Routing Table:    2785
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2174
Number of RIPE addresses announced to Internet:               653118564
    Equivalent to 38 /8s, 237 /16s and 204 /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:                   46948
    Total LACNIC prefixes after maximum aggregation:               9123
    LACNIC Deaggregation factor:                                   5.15
Prefixes being announced from the LACNIC address blocks:          50659
    Unique aggregates announced from the LACNIC address blocks:   23552
LACNIC Region origin ASes present in the Internet Routing Table:   1810
    LACNIC Prefixes per ASN:                                      27.99
LACNIC Region origin ASes announcing only one prefix:               521
LACNIC Region transit ASes present in the Internet Routing Table:   337
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:   742
Number of LACNIC addresses announced to Internet:             123125544
    Equivalent to 7 /8s, 86 /16s and 191 /24s
    Percentage of available LACNIC address space announced:        73.4

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:                  10472
    Total AfriNIC prefixes after maximum aggregation:              2408
    AfriNIC Deaggregation factor:                                  4.35
Prefixes being announced from the AfriNIC address blocks:         11066
    Unique aggregates announced from the AfriNIC address blocks:   3716
AfriNIC Region origin ASes present in the Internet Routing Table:   593
    AfriNIC Prefixes per ASN:                                     18.66
AfriNIC Region origin ASes announcing only one prefix:              177
AfriNIC Region transit ASes present in the Internet Routing Table:  133
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:             44187648
    Equivalent to 2 /8s, 162 /16s and 64 /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     2942      11558         924   Korea Telecom (KIX)
17974     2482        824          84   PT TELEKOMUNIKASI INDONESIA
 7545     1824        301          88   TPG Internet Pty Ltd
 4755     1684        382         190   TATA Communications formerly 
 9829     1428       1145          45   BSNL National Internet Backbo
 9583     1204         90         499   Sify Limited
 7552     1161       1070          12   Vietel Corporation
 4808     1109       2040         316   CNCGROUP IP network: China169
 9498     1058        310          75   BHARTI Airtel Ltd.
24560     1044        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     3071       3697         105   bellsouth.net, inc. 
 7029     2263       1265         211   Windstream Communications Inc
18566     2081        382         183   Covad Communications 
22773     1966       2931         128   Cox Communications, Inc.
 1785     1953        678         125   PaeTec Communications, Inc.
20115     1689       1609         624   Charter Communications 
 4323     1600       1155         395   Time Warner Telecom
30036     1342        287         689   Mediacom Communications Corp 
 7018     1305      10552         859   AT&T WorldNet Services
 7011     1200        316         683   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     1872        544          16   Corbina telecom
 2118     1114         97          13   EUnet/RELCOM Autonomous Syste
34984     1052        232         204   BILISIM TELEKOM
13188      854         99          22   Educational Network
12479      840        782          68   Uni2 Autonomous System
31148      757         39          17   FreeNet ISP
20940      747        255         590   Akamai Technologies European 
 8551      716        367          39   Bezeq International
 6830      713       2313         434   UPC Distribution Services
34744      669        186          47   SC GVM SISTEM 2003 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     2356       1325          86   NET Servicos de Comunicao S.A
10620     2311        396         225   TVCABLE BOGOTA 
 7303     1679       1147         206   Telecom Argentina Stet-France
 8151     1511       2830         390   UniNet S.A. de C.V. 
 6503     1473        435          67   AVANTEL, S.A. 
14754      940        120          78   Telgua S. A. 
27947      775         86          97   Telconet S.A
18881      758        716          18   Global Village Telecom 
 3816      683        306          86   Empresa Nacional de Telecomun
11172      604         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     1286         80           4   MOBITEL
24863      898        275          36   LINKdotNET AS number
 8452      534        958          13   TEDATA
 6713      499        602          20   Itissalat Al-MAGHRIB
24835      329         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
16637      191        696          90   MTN Network Solutions
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     3071       3697         105   bellsouth.net, inc. 
 4766     2942      11558         924   Korea Telecom (KIX)
17974     2482        824          84   PT TELEKOMUNIKASI INDONESIA
28573     2356       1325          86   NET Servicos de Comunicao S.A
10620     2311        396         225   TVCABLE BOGOTA 
 7029     2263       1265         211   Windstream Communications Inc
18566     2081        382         183   Covad Communications 
22773     1966       2931         128   Cox Communications, Inc.
 1785     1953        678         125   PaeTec Communications, Inc.
 8402     1872        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      2482        2398      PT TELEKOMUNIKASI INDONESIA
28573      2356        2270      NET Servicos de Comunicao S.A
10620      2311        2086      TVCABLE BOGOTA 
 7029      2263        2052      Windstream Communications Inc
 4766      2942        2018      Korea Telecom (KIX)
18566      2081        1898      Covad Communications 
 8402      1872        1856      Corbina telecom
22773      1966        1838      Cox Communications, Inc.
 1785      1953        1828      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
128.0.16.0/21        43568     RIPE Network Coordination Cen
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

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

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

Network            Origin AS  Description
31.210.16.0/22       15657     Neural Networks ASN
41.138.95.0/24       36930     ZanZibar Telecom
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        /8:17       /9:13      /10:29      /11:88      /12:246     
/13:482     /14:865     /15:1551    /16:12571   /17:6599    /18:10990   
/19:21739   /20:31215   /21:33260   /22:45385   /23:41009   /24:232313  
/25:1374    /26:1745    /27:861     /28:181     /29:74      /30:16      
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
18566     2031          2081      Covad Communications 
 6389     1759          3071      bellsouth.net, inc. 
 7029     1637          2263      Windstream Communications Inc
 8402     1601          1872      Corbina telecom
22773     1292          1966      Cox Communications, Inc.
36998     1280          1286      MOBITEL
30036     1234          1342      Mediacom Communications Corp 
11492     1158          1195      Cable One 
 1785     1033          1953      PaeTec Communications, Inc.
 6503      983          1473      AVANTEL, S.A. 

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

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

   1:668       2:731       3:3         4:13        5:748       6:3      
   8:486      12:1930     13:3        14:738      15:11       16:3      
  17:8        20:24       23:237      24:1801     27:1474     31:1129   
  32:54       33:2        34:5        36:10       37:1299     38:846    
  39:2        40:141      41:2685     42:179      44:4        46:1735   
  47:1        49:577      50:648      52:12       54:28       55:7      
  57:28       58:1082     59:559      60:251      61:1317     62:1025   
  63:2025     64:4320     65:2143     66:4272     67:2022     68:1121   
  69:3248     70:858      71:532      72:1876     74:2536     75:421    
  76:291      77:1072     78:1028     79:555      80:1226     81:992    
  82:638      83:539      84:574      85:1150     86:475      87:980    
  88:376      89:1743     90:286      91:5384     92:626      93:1706   
  94:2030     95:1607     96:490      97:334      98:1049     99:52     
 100:30      101:313     103:2094    105:519     106:132     107:207    
 108:511     109:1765    110:854     111:1012    112:480     113:735    
 114:685     115:922     116:873     117:792     118:980     119:1267   
 120:375     121:699     122:1734    123:1190    124:1317    125:1309   
 128:548     129:201     130:313     131:649     132:326     133:143    
 134:260     135:62      136:222     137:235     138:342     139:155    
 140:216     141:315     142:501     143:390     144:481     145:88     
 146:530     147:357     148:727     149:341     150:158     151:400    
 152:395     153:190     154:27      155:370     156:241     157:392    
 158:259     159:697     160:334     161:422     162:361     163:203    
 164:580     165:448     166:439     167:573     168:1009    169:131    
 170:1016    171:164     172:4       173:1545    174:613     175:421    
 176:1123    177:1677    178:1739    180:1373    181:220     182:1147   
 183:317     184:632     185:217     186:2268    187:1421    188:1967   
 189:1548    190:6641    192:6320    193:5672    194:4640    195:3650   
 196:1302    197:848     198:4131    199:5195    200:6045    201:2182   
 202:8895    203:8770    204:4439    205:2542    206:2798    207:2804   
 208:4056    209:3514    210:2919    211:1568    212:2013    213:1887   
 214:904     215:93      216:5088    217:1582    218:592     219:328    
 220:1264    221:550     222:337     223:422    

End of report


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