[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 7 18:39:36 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 08 Jun, 2013

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

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

BGP routing table entries examined:                              455106
    Prefixes after maximum aggregation:                          185702
    Deaggregation factor:                                          2.45
    Unique aggregates announced to Internet:                     225482
Total ASes present in the Internet Routing Table:                 44265
    Prefixes per ASN:                                             10.28
Origin-only ASes present in the Internet Routing Table:           34687
Origin ASes announcing only one prefix:                           16161
Transit ASes present in the Internet Routing Table:                5879
Transit-only ASes present in the Internet Routing Table:            147
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 55644)                              23
Prefixes from unregistered ASNs in the Routing Table:               331
    Unregistered ASNs in the Routing Table:                         139
Number of 32-bit ASNs allocated by the RIRs:                       4787
Number of 32-bit ASNs visible in the Routing Table:                3699
Prefixes from 32-bit ASNs in the Routing Table:                   10729
Special use prefixes present in the Routing Table:                   26
Prefixes being announced from unallocated address space:            226
Number of addresses announced to Internet:                   2623669644
    Equivalent to 156 /8s, 98 /16s and 5 /24s
    Percentage of available address space announced:               70.9
    Percentage of allocated address space announced:               70.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.6
Total number of prefixes smaller than registry allocations:      159823

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

Prefixes being announced by APNIC Region ASes:                   109375
    Total APNIC prefixes after maximum aggregation:               33513
    APNIC Deaggregation factor:                                    3.26
Prefixes being announced from the APNIC address blocks:          110866
    Unique aggregates announced from the APNIC address blocks:    45108
APNIC Region origin ASes present in the Internet Routing Table:    4855
    APNIC Prefixes per ASN:                                       22.84
APNIC Region origin ASes announcing only one prefix:               1227
APNIC Region transit ASes present in the Internet Routing Table:    825
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:    563
Number of APNIC addresses announced to Internet:              724781792
    Equivalent to 43 /8s, 51 /16s and 74 /24s
    Percentage of available APNIC address space announced:         84.7

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:                    158557
    Total ARIN prefixes after maximum aggregation:                80320
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           159120
    Unique aggregates announced from the ARIN address blocks:     73458
ARIN Region origin ASes present in the Internet Routing Table:    15729
    ARIN Prefixes per ASN:                                        10.12
ARIN Region origin ASes announcing only one prefix:                5984
ARIN Region transit ASes present in the Internet Routing Table:    1653
Average ARIN Region AS path length visible:                         4.2
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      19
Number of ARIN addresses announced to Internet:              1064524096
    Equivalent to 63 /8s, 115 /16s and 89 /24s
    Percentage of available ARIN address space announced:          56.3

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, 62464-63487, 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:                    117096
    Total RIPE prefixes after maximum aggregation:                60007
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           120642
    Unique aggregates announced from the RIPE address blocks:     78094
RIPE Region origin ASes present in the Internet Routing Table:    17224
    RIPE Prefixes per ASN:                                         7.00
RIPE Region origin ASes announcing only one prefix:                8185
RIPE Region transit ASes present in the Internet Routing Table:    2823
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2349
Number of RIPE addresses announced to Internet:               656568420
    Equivalent to 39 /8s, 34 /16s and 112 /24s
    Percentage of available RIPE address space announced:          95.5

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:                   48355
    Total LACNIC prefixes after maximum aggregation:               9319
    LACNIC Deaggregation factor:                                   5.19
Prefixes being announced from the LACNIC address blocks:          52748
    Unique aggregates announced from the LACNIC address blocks:   24740
LACNIC Region origin ASes present in the Internet Routing Table:   1953
    LACNIC Prefixes per ASN:                                      27.01
LACNIC Region origin ASes announcing only one prefix:               583
LACNIC Region transit ASes present in the Internet Routing Table:   361
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   762
Number of LACNIC addresses announced to Internet:             130842376
    Equivalent to 7 /8s, 204 /16s and 127 /24s
    Percentage of available LACNIC address space announced:        78.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-62463, 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:                  10894
    Total AfriNIC prefixes after maximum aggregation:              2500
    AfriNIC Deaggregation factor:                                  4.36
Prefixes being announced from the AfriNIC address blocks:         11504
    Unique aggregates announced from the AfriNIC address blocks:   3873
AfriNIC Region origin ASes present in the Internet Routing Table:   628
    AfriNIC Prefixes per ASN:                                     18.32
AfriNIC Region origin ASes announcing only one prefix:              182
AfriNIC Region transit ASes present in the Internet Routing Table:  130
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46672128
    Equivalent to 2 /8s, 200 /16s and 41 /24s
    Percentage of available AfriNIC address space announced:       46.4

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     2958      11559         926   Korea Telecom (KIX)
17974     2524        855          91   PT TELEKOMUNIKASI INDONESIA
 7545     1992        320         108   TPG Internet Pty Ltd
 4755     1738        391         191   TATA Communications formerly 
 9829     1500       1205          40   BSNL National Internet Backbo
 9583     1221         91         503   Sify Limited
 7552     1164       1080          13   Vietel Corporation
 4808     1141       2123         333   CNCGROUP IP network: China169
 9498     1127        309          70   BHARTI Airtel Ltd.
24560     1077        394         164   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     3015       3691          75   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
 1785     1991        677         123   PaeTec Communications, Inc.
22773     1989       2929         125   Cox Communications, Inc.
20115     1664       1616         617   Charter Communications 
 4323     1618       1138         403   Time Warner Telecom
  701     1533      11075         840   UUNET Technologies, Inc. 
30036     1333        298         644   Mediacom Communications Corp 
 7018     1293      11038         833   AT&T WorldNet Services
11492     1218        216         359   Cable One 

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     1684        544          16   Corbina telecom
34984     1271        244         223   BILISIM TELEKOM
 2118     1069         97          13   EUnet/RELCOM Autonomous Syste
20940      896        315         702   Akamai Technologies European 
13188      830         98          74   Educational Network
31148      812         41          25   FreeNet ISP
 8551      773        370          43   Bezeq International
 6830      768       2376         441   UPC Distribution Services
34744      676        173          59   SC GVM SISTEM 2003 SRL
58113      666         74         386   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     2827       1558         111   NET Servicos de Comunicao S.A
10620     2650        417         218   TVCABLE BOGOTA 
 7303     1732       1155         221   Telecom Argentina Stet-France
 8151     1271       2710         407   UniNet S.A. de C.V. 
18881      972        780          19   Global Village Telecom 
 6503      873        434          65   AVANTEL, S.A. 
27947      836         89         104   Telconet S.A
 3816      711        306          85   Empresa Nacional de Telecomun
 7738      698       1370          35   Telecomunicacoes da Bahia S.A
 6147      665        374          25   Telefonica Del Peru 

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     1237         80           4   MOBITEL
24863      887        274          32   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      446        956           9   TEDATA
24835      345         80           8   RAYA Telecom - Egypt
 3741      259        906         218   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
29571      205         17           9   Ci Telecom Autonomous system 
12258      193         28          67   Vodacom Internet Company 
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     3015       3691          75   bellsouth.net, inc. 
 4766     2958      11559         926   Korea Telecom (KIX)
28573     2827       1558         111   NET Servicos de Comunicao S.A
10620     2650        417         218   TVCABLE BOGOTA 
17974     2524        855          91   PT TELEKOMUNIKASI INDONESIA
18566     2065        382         184   Covad Communications 
 7545     1992        320         108   TPG Internet Pty Ltd
 1785     1991        677         123   PaeTec Communications, Inc.
22773     1989       2929         125   Cox Communications, Inc.
 4755     1738        391         191   TATA Communications formerly 

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

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

  ASN   No of nets  Net Savings Description
28573      2827        2716      NET Servicos de Comunicao S.A
17974      2524        2433      PT TELEKOMUNIKASI INDONESIA
10620      2650        2432      TVCABLE BOGOTA 
 4766      2958        2032      Korea Telecom (KIX)
 7545      1992        1884      TPG Internet Pty Ltd
18566      2065        1881      Covad Communications 
 1785      1991        1868      PaeTec Communications, Inc.
22773      1989        1864      Cox Communications, Inc.
 8402      1684        1668      Corbina telecom
 4755      1738        1547      TATA Communications formerly 

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
128.0.46.0/23        39743     Mobimax Telecom SRL
128.0.53.0/24        60993     Totalsoft SA
128.0.54.0/24        60972     Carpatair SA
128.0.55.0/24        48571     SC efectRO SRL
128.0.57.0/24        60993     Totalsoft SA
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24         9050     RTD-ROMTELECOM Autonomous Sys

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

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

Network            Origin AS  Description
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.
64.185.228.0/24      27431     JTL Networks Inc.
64.185.229.0/24      27431     JTL Networks Inc.
64.185.230.0/24      27431     JTL Networks Inc.
64.185.231.0/24      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        /8:16       /9:11      /10:30      /11:91      /12:250     
/13:484     /14:901     /15:1599    /16:12696   /17:6638    /18:11162   
/19:22169   /20:32006   /21:34349   /22:47488   /23:42257   /24:238977  
/25:1318    /26:1660    /27:855     /28:46      /29:65      /30:18      
/31:0       /32:20      

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

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
 6389     1732          3015      bellsouth.net, inc. 
 8402     1370          1684      Corbina telecom
22773     1296          1989      Cox Communications, Inc.
36998     1231          1237      MOBITEL
30036     1202          1333      Mediacom Communications Corp 
11492     1180          1218      Cable One 
 1785     1062          1991      PaeTec Communications, Inc.
 6983     1011          1138      ITC^Deltacom 
10620      990          2650      TVCABLE BOGOTA 

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

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

   1:821       2:778       3:3         4:15        5:771       6:11     
   8:558      12:1927     13:3        14:831      15:11       16:3      
  17:10       20:17       23:369      24:1769     27:1478     31:1322   
  32:57       33:2        34:5        36:32       37:1851     38:871    
  39:2        40:171      41:2810     42:194      44:6        46:1933   
  47:2        49:641      50:716      52:12       54:33       55:5      
  57:27       58:1164     59:572      60:314      61:1407     62:1123   
  63:2034     64:4324     65:2164     66:4177     67:2049     68:1074   
  69:3263     70:787      71:487      72:1914     74:2476     75:323    
  76:301      77:1131     78:1025     79:619      80:1269     81:1004   
  82:624      83:574      84:534      85:1164     86:453      87:992    
  88:537      89:1763     90:147      91:5531     92:590      93:1673   
  94:1856     95:1459     96:512      97:344      98:1002     99:42     
 100:31      101:323     103:2735    105:519     106:149     107:208    
 108:510     109:1820    110:896     111:1046    112:539     113:813    
 114:695     115:958     116:933     117:800     118:1083    119:1301   
 120:408     121:729     122:1794    123:1217    124:1362    125:1356   
 128:648     129:224     130:325     131:654     132:342     133:148    
 134:267     135:66      136:224     137:239     138:345     139:194    
 140:211     141:327     142:536     143:392     144:497     145:93     
 146:510     147:382     148:684     149:368     150:162     151:500    
 152:417     153:193     154:41      155:402     156:267     157:397    
 158:278     159:729     160:339     161:432     162:409     163:221    
 164:599     165:495     166:271     167:594     168:1021    169:129    
 170:1052    171:181     172:21      173:1594    174:544     175:470    
 176:1144    177:2087    178:1863    179:27      180:1458    181:450    
 182:1215    183:387     184:693     185:512     186:2281    187:1298   
 188:2135    189:1259    190:6822    192:6651    193:5668    194:4591   
 195:3423    196:1349    197:904     198:4483    199:5329    200:5979   
 201:2250    202:8825    203:8896    204:4499    205:2572    206:2802   
 207:2849    208:4060    209:3620    210:2964    211:1507    212:2185   
 213:1979    214:924     215:98      216:5233    217:1616    218:618    
 219:349     220:1264    221:558     222:321     223:456    

End of report


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