Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 10 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 11 May, 2013

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

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

BGP routing table entries examined:                              454386
    Prefixes after maximum aggregation:                          185202
    Deaggregation factor:                                          2.45
    Unique aggregates announced to Internet:                     224421
Total ASes present in the Internet Routing Table:                 44038
    Prefixes per ASN:                                             10.32
Origin-only ASes present in the Internet Routing Table:           34566
Origin ASes announcing only one prefix:                           16097
Transit ASes present in the Internet Routing Table:                5845
Transit-only ASes present in the Internet Routing Table:            151
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      57
    Max AS path prepend of ASN ( 61154)                              54
Prefixes from unregistered ASNs in the Routing Table:               315
    Unregistered ASNs in the Routing Table:                         131
Number of 32-bit ASNs allocated by the RIRs:                       4760
Number of 32-bit ASNs visible in the Routing Table:                3627
Prefixes from 32-bit ASNs in the Routing Table:                   10293
Special use prefixes present in the Routing Table:                   22
Prefixes being announced from unallocated address space:            235
Number of addresses announced to Internet:                   2614671852
    Equivalent to 155 /8s, 216 /16s and 185 /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:               94.5
Total number of prefixes smaller than registry allocations:      160423

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

Prefixes being announced by APNIC Region ASes:                   108833
    Total APNIC prefixes after maximum aggregation:               33440
    APNIC Deaggregation factor:                                    3.25
Prefixes being announced from the APNIC address blocks:          110179
    Unique aggregates announced from the APNIC address blocks:    44862
APNIC Region origin ASes present in the Internet Routing Table:    4837
    APNIC Prefixes per ASN:                                       22.78
APNIC Region origin ASes announcing only one prefix:               1221
APNIC Region transit ASes present in the Internet Routing Table:    827
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:    523
Number of APNIC addresses announced to Internet:              721082080
    Equivalent to 42 /8s, 250 /16s and 214 /24s
    Percentage of available APNIC address space announced:         84.3

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:                    159410
    Total ARIN prefixes after maximum aggregation:                80155
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           160009
    Unique aggregates announced from the ARIN address blocks:     73348
ARIN Region origin ASes present in the Internet Routing Table:    15677
    ARIN Prefixes per ASN:                                        10.21
ARIN Region origin ASes announcing only one prefix:                5965
ARIN Region transit ASes present in the Internet Routing Table:    1632
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          39
Number of ARIN region 32-bit ASNs visible in the Routing Table:      19
Number of ARIN addresses announced to Internet:              1061791104
    Equivalent to 63 /8s, 73 /16s and 165 /24s
    Percentage of available ARIN address space announced:          56.2

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:                    117197
    Total RIPE prefixes after maximum aggregation:                59752
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           120753
    Unique aggregates announced from the RIPE address blocks:     77929
RIPE Region origin ASes present in the Internet Routing Table:    17166
    RIPE Prefixes per ASN:                                         7.03
RIPE Region origin ASes announcing only one prefix:                8147
RIPE Region transit ASes present in the Internet Routing Table:    2805
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          57
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2318
Number of RIPE addresses announced to Internet:               656487012
    Equivalent to 39 /8s, 33 /16s and 50 /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:                   47766
    Total LACNIC prefixes after maximum aggregation:               9328
    LACNIC Deaggregation factor:                                   5.12
Prefixes being announced from the LACNIC address blocks:          51844
    Unique aggregates announced from the LACNIC address blocks:   24191
LACNIC Region origin ASes present in the Internet Routing Table:   1928
    LACNIC Prefixes per ASN:                                      26.89
LACNIC Region origin ASes announcing only one prefix:               578
LACNIC Region transit ASes present in the Internet Routing Table:   357
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   761
Number of LACNIC addresses announced to Internet:             128546088
    Equivalent to 7 /8s, 169 /16s and 117 /24s
    Percentage of available LACNIC address space announced:        76.6

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:                  10802
    Total AfriNIC prefixes after maximum aggregation:              2487
    AfriNIC Deaggregation factor:                                  4.34
Prefixes being announced from the AfriNIC address blocks:         11366
    Unique aggregates announced from the AfriNIC address blocks:   3873
AfriNIC Region origin ASes present in the Internet Routing Table:   625
    AfriNIC Prefixes per ASN:                                     18.19
AfriNIC Region origin ASes announcing only one prefix:              186
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:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46413824
    Equivalent to 2 /8s, 196 /16s and 56 /24s
    Percentage of available AfriNIC address space announced:       46.1

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      11558         927   Korea Telecom (KIX)
17974     2512        839          90   PT TELEKOMUNIKASI INDONESIA
 7545     1903        320         109   TPG Internet Pty Ltd
 4755     1725        390         191   TATA Communications formerly 
 9829     1509       1205          40   BSNL National Internet Backbo
 9583     1221         91         502   Sify Limited
 7552     1172       1064          12   Vietel Corporation
 4808     1120       2113         328   CNCGROUP IP network: China169
 9498     1099        309          71   BHARTI Airtel Ltd.
24560     1069        393         166   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     3016       3693          82   bellsouth.net, inc. 
 7029     2144       1265         211   Windstream Communications Inc
18566     2067        382         184   Covad Communications 
 1785     1993        677         125   PaeTec Communications, Inc.
22773     1971       2929         125   Cox Communications, Inc.
20115     1668       1609         617   Charter Communications 
 4323     1613       1139         399   Time Warner Telecom
30036     1338        297         649   Mediacom Communications Corp 
 7018     1313      10819         849   AT&T WorldNet Services
11492     1245        228         320   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     1747        544          16   Corbina telecom
 2118     1390         97          13   EUnet/RELCOM Autonomous Syste
34984     1185        238         221   BILISIM TELEKOM
13188      834         99          64   Educational Network
20940      825        285         654   Akamai Technologies European 
31148      790         39          20   FreeNet ISP
 8551      772        370          43   Bezeq International
 6830      771       2376         444   UPC Distribution Services
12479      681        782          67   Uni2 Autonomous System
34744      671        172          55   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     2684       1482         109   NET Servicos de Comunicao S.A
10620     2625        411         225   TVCABLE BOGOTA 
 7303     1689       1157         219   Telecom Argentina Stet-France
 8151     1242       2701         393   UniNet S.A. de C.V. 
 6503      971        435          68   AVANTEL, S.A. 
18881      921        780          19   Global Village Telecom 
27947      822         88          95   Telconet S.A
11830      710        364          14   Instituto Costarricense de El
 3816      706        306          85   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     1237         80           4   MOBITEL
24863      888        274          32   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      461        956           9   TEDATA
24835      344         80           8   RAYA Telecom - Egypt
 3741      261        906         220   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
12258      193         28          67   Vodacom Internet Company 
29975      191        667          21   Vodacom
36992      189        527          21   Etisalat MISR

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     3016       3693          82   bellsouth.net, inc. 
 4766     2958      11558         927   Korea Telecom (KIX)
28573     2684       1482         109   NET Servicos de Comunicao S.A
10620     2625        411         225   TVCABLE BOGOTA 
17974     2512        839          90   PT TELEKOMUNIKASI INDONESIA
 7029     2144       1265         211   Windstream Communications Inc
18566     2067        382         184   Covad Communications 
 1785     1993        677         125   PaeTec Communications, Inc.
22773     1971       2929         125   Cox Communications, Inc.
 7545     1903        320         109   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
28573      2684        2575      NET Servicos de Comunicao S.A
17974      2512        2422      PT TELEKOMUNIKASI INDONESIA
10620      2625        2400      TVCABLE BOGOTA 
 4766      2958        2031      Korea Telecom (KIX)
 7029      2144        1933      Windstream Communications Inc
18566      2067        1883      Covad Communications 
 1785      1993        1868      PaeTec Communications, Inc.
22773      1971        1846      Cox Communications, Inc.
 7545      1903        1794      TPG Internet Pty Ltd
 8402      1747        1731      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
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.52.0/24        60906     NETOPIA SRL
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.61.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.62.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.63.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.72.0/21        23456     32-bit ASN transition

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       /9:13      /10:29      /11:87      /12:250     
/13:490     /14:883     /15:1566    /16:12683   /17:6624    /18:11168   
/19:22067   /20:32025   /21:34139   /22:47347   /23:42141   /24:238728  
/25:1362    /26:1756    /27:867     /28:43      /29:65      /30:18      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2018          2067      Covad Communications 
 6389     1728          3016      bellsouth.net, inc. 
 7029     1612          2144      Windstream Communications Inc
 8402     1451          1747      Corbina telecom
22773     1281          1971      Cox Communications, Inc.
36998     1231          1237      MOBITEL
30036     1211          1338      Mediacom Communications Corp 
11492     1204          1245      Cable One 
 1785     1062          1993      PaeTec Communications, Inc.
 6983     1008          1134      ITC^Deltacom 

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

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

   1:805       2:744       3:3         4:15        5:876       6:7      
   8:555      12:1917     13:3        14:776      15:11       16:3      
  17:9        20:17       23:276      24:1760     27:1500     31:1275   
  32:43       33:1        34:5        36:44       37:1852     38:872    
  39:2        40:172      41:2772     42:190      44:6        46:1889   
  47:2        49:632      50:691      52:12       54:34       55:9      
  57:26       58:1141     59:568      60:306      61:1391     62:1081   
  63:2035     64:4309     65:2175     66:4363     67:2046     68:1128   
  69:3280     70:872      71:537      72:1944     74:2558     75:412    
  76:307      77:1105     78:1054     79:584      80:1265     81:993    
  82:622      83:556      84:529      85:1150     86:462      87:979    
  88:537      89:1781     90:161      91:5453     92:614      93:1723   
  94:1856     95:1528     96:526      97:344      98:1052     99:41     
 100:30      101:328     103:2559    105:535     106:144     107:210    
 108:520     109:1850    110:869     111:1054    112:509     113:790    
 114:709     115:941     116:895     117:791     118:1068    119:1287   
 120:401     121:719     122:1777    123:1246    124:1351    125:1343   
 128:630     129:216     130:323     131:648     132:339     133:149    
 134:261     135:66      136:221     137:255     138:346     139:196    
 140:207     141:327     142:546     143:405     144:484     145:92     
 146:513     147:405     148:693     149:371     150:158     151:567    
 152:415     153:196     154:44      155:397     156:263     157:400    
 158:276     159:729     160:358     161:428     162:419     163:212    
 164:591     165:452     166:301     167:582     168:1032    169:134    
 170:1029    171:178     172:6       173:1665    174:592     175:469    
 176:1282    177:1960    178:1841    179:6       180:1419    181:423    
 182:1185    183:389     184:675     185:430     186:2300    187:1306   
 188:2148    189:1331    190:6344    192:6599    193:5866    194:4667   
 195:3455    196:1331    197:907     198:4427    199:5291    200:5924   
 201:2416    202:8846    203:8831    204:4514    205:2563    206:2843   
 207:2889    208:4054    209:3627    210:2942    211:1559    212:2106   
 213:1941    214:918     215:98      216:5251    217:1596    218:617    
 219:330     220:1279    221:555     222:319     223:442    

End of report



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