Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 2 18:33:39 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 03 Aug, 2013

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

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

BGP routing table entries examined:                              462161
    Prefixes after maximum aggregation:                          186936
    Deaggregation factor:                                          2.47
    Unique aggregates announced to Internet:                     228387
Total ASes present in the Internet Routing Table:                 44607
    Prefixes per ASN:                                             10.36
Origin-only ASes present in the Internet Routing Table:           34905
Origin ASes announcing only one prefix:                           16176
Transit ASes present in the Internet Routing Table:                5877
Transit-only ASes present in the Internet Routing Table:            159
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:              3785
    Unregistered ASNs in the Routing Table:                        1451
Number of 32-bit ASNs allocated by the RIRs:                       4919
Number of 32-bit ASNs visible in the Routing Table:                3825
Prefixes from 32-bit ASNs in the Routing Table:                   11480
Special use prefixes present in the Routing Table:                   29
Prefixes being announced from unallocated address space:            280
Number of addresses announced to Internet:                   2631038412
    Equivalent to 156 /8s, 210 /16s and 117 /24s
    Percentage of available address space announced:               71.1
    Percentage of allocated address space announced:               71.1
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.8
Total number of prefixes smaller than registry allocations:      162245

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

Prefixes being announced by APNIC Region ASes:                   111245
    Total APNIC prefixes after maximum aggregation:               33944
    APNIC Deaggregation factor:                                    3.28
Prefixes being announced from the APNIC address blocks:          113001
    Unique aggregates announced from the APNIC address blocks:    46108
APNIC Region origin ASes present in the Internet Routing Table:    4859
    APNIC Prefixes per ASN:                                       23.26
APNIC Region origin ASes announcing only one prefix:               1220
APNIC Region transit ASes present in the Internet Routing Table:    822
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         28
Number of APNIC region 32-bit ASNs visible in the Routing Table:    624
Number of APNIC addresses announced to Internet:              725607392
    Equivalent to 43 /8s, 63 /16s and 227 /24s
    Percentage of available APNIC address space announced:         84.8

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:                    159988
    Total ARIN prefixes after maximum aggregation:                80604
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           160571
    Unique aggregates announced from the ARIN address blocks:     74210
ARIN Region origin ASes present in the Internet Routing Table:    15784
    ARIN Prefixes per ASN:                                        10.17
ARIN Region origin ASes announcing only one prefix:                5989
ARIN Region transit ASes present in the Internet Routing Table:    1648
Average ARIN Region AS path length visible:                         4.1
    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:              1067855936
    Equivalent to 63 /8s, 166 /16s and 48 /24s
    Percentage of available ARIN address space announced:          56.5

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:                    118234
    Total RIPE prefixes after maximum aggregation:                60308
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           122020
    Unique aggregates announced from the RIPE address blocks:     78392
RIPE Region origin ASes present in the Internet Routing Table:    17320
    RIPE Prefixes per ASN:                                         7.05
RIPE Region origin ASes announcing only one prefix:                8206
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:    2383
Number of RIPE addresses announced to Internet:               656244132
    Equivalent to 39 /8s, 29 /16s and 125 /24s
    Percentage of available RIPE address space announced:          95.4

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:                   49579
    Total LACNIC prefixes after maximum aggregation:               9506
    LACNIC Deaggregation factor:                                   5.22
Prefixes being announced from the LACNIC address blocks:          54151
    Unique aggregates announced from the LACNIC address blocks:   25483
LACNIC Region origin ASes present in the Internet Routing Table:   1990
    LACNIC Prefixes per ASN:                                      27.21
LACNIC Region origin ASes announcing only one prefix:               574
LACNIC Region transit ASes present in the Internet Routing Table:   363
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   793
Number of LACNIC addresses announced to Internet:             134428168
    Equivalent to 8 /8s, 3 /16s and 54 /24s
    Percentage of available LACNIC address space announced:        80.1

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 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:                  11548
    Total AfriNIC prefixes after maximum aggregation:              2534
    AfriNIC Deaggregation factor:                                  4.56
Prefixes being announced from the AfriNIC address blocks:         12138
    Unique aggregates announced from the AfriNIC address blocks:   3934
AfriNIC Region origin ASes present in the Internet Routing Table:   643
    AfriNIC Prefixes per ASN:                                     18.88
AfriNIC Region origin ASes announcing only one prefix:              187
AfriNIC Region transit ASes present in the Internet Routing Table:  129
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:             46568960
    Equivalent to 2 /8s, 198 /16s and 150 /24s
    Percentage of available AfriNIC address space announced:       46.3

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     2918      11561         917   Korea Telecom (KIX)
17974     2651        871          92   PT TELEKOMUNIKASI INDONESIA
 7545     2037        320         111   TPG Internet Pty Ltd
 4755     1782        393         201   TATA Communications formerly 
 9829     1537       1221          45   BSNL National Internet Backbo
 9583     1223         92         504   Sify Limited
 9498     1176        309          71   BHARTI Airtel Ltd.
 4808     1159       2133         336   CNCGROUP IP network: China169
 7552     1131       1080          13   Vietel Corporation
24560     1087        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     2981       3689          63   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
 1785     2004        679         124   PaeTec Communications, Inc.
22773     2001       2927         123   Cox Communications, Inc.
20115     1671       1623         622   Charter Communications 
 4323     1618       1105         406   Time Warner Telecom
  701     1517      11093         804   UUNET Technologies, Inc. 
30036     1356        307         653   Mediacom Communications Corp 
 7018     1318      11037         830   AT&T WorldNet Services
11492     1221        218         363   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     1605        544          16   Corbina telecom
34984     1299        244         221   BILISIM TELEKOM
 2118     1155         97          13   EUnet/RELCOM Autonomous Syste
31148      977         43          19   FreeNet ISP
20940      958        336         743   Akamai Technologies European 
 6830      848       2371         431   UPC Distribution Services
13188      840         98          78   Educational Network
 8551      780        370          45   Bezeq International
12479      678        796          52   Uni2 Autonomous System
 9198      595        343          21   Kazakhtelecom Data Network Ad

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     2973       1591         110   NET Servicos de Comunicao S.A
10620     2652        421         228   TVCABLE BOGOTA 
 7303     1728       1156         220   Telecom Argentina Stet-France
 8151     1276       2756         386   UniNet S.A. de C.V. 
18881     1271        844          20   Global Village Telecom 
27947      836         94          90   Telconet S.A
 6503      819        434          63   AVANTEL, S.A. 
11830      749        364          15   Instituto Costarricense de El
 3816      722        302          83   Empresa Nacional de Telecomun
 7738      698       1370          35   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
36998     1860        112           5   MOBITEL
24863      875        274          30   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      435        956           9   TEDATA
24835      279         80           8   RAYA Telecom - Egypt
 3741      258        921         217   The Internet Solution 
15706      221         32           6   Sudatel Internet Exchange Aut
29571      220         17          12   Ci Telecom Autonomous system 
36992      209        527          22   Etisalat MISR
12258      193         28          71   Vodacom Internet Company 

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     2981       3689          63   bellsouth.net, inc. 
28573     2973       1591         110   NET Servicos de Comunicao S.A
 4766     2918      11561         917   Korea Telecom (KIX)
10620     2652        421         228   TVCABLE BOGOTA 
17974     2651        871          92   PT TELEKOMUNIKASI INDONESIA
18566     2065        382         184   Covad Communications 
 7545     2037        320         111   TPG Internet Pty Ltd
 1785     2004        679         124   PaeTec Communications, Inc.
22773     2001       2927         123   Cox Communications, Inc.
36998     1860        112           5   MOBITEL

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      2973        2863      NET Servicos de Comunicao S.A
17974      2651        2559      PT TELEKOMUNIKASI INDONESIA
10620      2652        2424      TVCABLE BOGOTA 
 4766      2918        2001      Korea Telecom (KIX)
 7545      2037        1926      TPG Internet Pty Ltd
18566      2065        1881      Covad Communications 
 1785      2004        1880      PaeTec Communications, Inc.
22773      2001        1878      Cox Communications, Inc.
36998      1860        1855      MOBITEL
 8402      1605        1589      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 
30621   UNALLOCATED  12.151.74.0/23        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          2541     >>UNKNOWN<<
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.40.0/24        60449     >>UNKNOWN<<
128.0.42.0/24        60619     >>UNKNOWN<<
128.0.43.0/24        60619     >>UNKNOWN<<
128.0.45.0/24        60657     >>UNKNOWN<<
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

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 
62.182.96.0/23       15830     TELECITY London
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.

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      /11:92      /12:249     
/13:479     /14:905     /15:1601    /16:12738   /17:6640    /18:11090   
/19:22524   /20:32191   /21:34694   /22:48720   /23:42665   /24:243597  
/25:1285    /26:1642    /27:839     /28:44      /29:74      /30:17      
/31:0       /32:18      

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

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
36998     1825          1860      MOBITEL
 6389     1715          2981      bellsouth.net, inc. 
 8402     1304          1605      Corbina telecom
22773     1303          2001      Cox Communications, Inc.
30036     1218          1356      Mediacom Communications Corp 
11492     1182          1221      Cable One 
 1785     1078          2004      PaeTec Communications, Inc.
 6983     1020          1147      ITC^Deltacom 
10620      987          2652      TVCABLE BOGOTA 

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

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

   1:829       2:695       3:3         4:19        5:909       6:17     
   8:580      12:1923     13:2        14:870      15:11       16:3      
  17:10       20:17       23:297      24:1770     27:1527     31:1354   
  32:45       33:2        34:5        36:71       37:1845     38:892    
  39:2        40:175      41:3280     42:249      44:8        46:1957   
  47:2        49:650      50:830      52:12       54:37       55:7      
  57:26       58:1164     59:614      60:332      61:1500     62:1177   
  63:2008     64:4348     65:2148     66:4190     67:2023     68:1093   
  69:3290     70:799      71:490      72:1914     74:2505     75:324    
  76:305      77:1123     78:1034     79:610      80:1288     81:1013   
  82:630      83:584      84:578      85:1235     86:466      87:1021   
  88:533      89:1804     90:154      91:5522     92:633      93:1685   
  94:1923     95:1629     96:592      97:344      98:1028     99:44     
 100:29      101:592     103:3079    105:523     106:139     107:208    
 108:520     109:1824    110:946     111:1073    112:564     113:816    
 114:701     115:1100    116:957     117:804     118:1144    119:1284   
 120:362     121:852     122:1803    123:1239    124:1370    125:1395   
 128:635     129:218     130:310     131:669     132:361     133:160    
 134:270     135:72      136:257     137:245     138:344     139:189    
 140:201     141:320     142:532     143:392     144:512     145:92     
 146:527     147:422     148:663     149:351     150:154     151:585    
 152:414     153:190     154:29      155:420     156:275     157:402    
 158:276     159:742     160:349     161:455     162:514     163:223    
 164:582     165:514     166:254     167:598     168:1026    169:126    
 170:1062    171:186     172:23      173:1576    174:556     175:501    
 176:1168    177:2121    178:1888    179:72      180:1507    181:595    
 182:1293    183:420     184:674     185:703     186:2317    187:1380   
 188:1888    189:1329    190:6827    192:6812    193:5625    194:4708   
 195:3587    196:1322    197:990     198:4565    199:5372    200:6002   
 201:2443    202:8787    203:8876    204:4512    205:2595    206:2826   
 207:2895    208:4002    209:3596    210:2937    211:1530    212:2240   
 213:2014    214:912     215:99      216:5252    217:1636    218:617    
 219:332     220:1274    221:551     222:318     223:462    

End of report



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