Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 28 18:33:24 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 29 Jun, 2013

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

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

BGP routing table entries examined:                              456943
    Prefixes after maximum aggregation:                          186069
    Deaggregation factor:                                          2.46
    Unique aggregates announced to Internet:                     227072
Total ASes present in the Internet Routing Table:                 44373
    Prefixes per ASN:                                             10.30
Origin-only ASes present in the Internet Routing Table:           34730
Origin ASes announcing only one prefix:                           16155
Transit ASes present in the Internet Routing Table:                5896
Transit-only ASes present in the Internet Routing Table:            144
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:              1668
    Unregistered ASNs in the Routing Table:                         758
Number of 32-bit ASNs allocated by the RIRs:                       4834
Number of 32-bit ASNs visible in the Routing Table:                3747
Prefixes from 32-bit ASNs in the Routing Table:                   10990
Special use prefixes present in the Routing Table:                   24
Prefixes being announced from unallocated address space:            215
Number of addresses announced to Internet:                   2625956140
    Equivalent to 156 /8s, 132 /16s and 233 /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:               94.7
Total number of prefixes smaller than registry allocations:      160087

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

Prefixes being announced by APNIC Region ASes:                   109760
    Total APNIC prefixes after maximum aggregation:               33678
    APNIC Deaggregation factor:                                    3.26
Prefixes being announced from the APNIC address blocks:          111592
    Unique aggregates announced from the APNIC address blocks:    45689
APNIC Region origin ASes present in the Internet Routing Table:    4852
    APNIC Prefixes per ASN:                                       23.00
APNIC Region origin ASes announcing only one prefix:               1215
APNIC Region transit ASes present in the Internet Routing Table:    823
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    589
Number of APNIC addresses announced to Internet:              725314528
    Equivalent to 43 /8s, 59 /16s and 107 /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:                    158854
    Total ARIN prefixes after maximum aggregation:                80348
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           159485
    Unique aggregates announced from the ARIN address blocks:     74154
ARIN Region origin ASes present in the Internet Routing Table:    15753
    ARIN Prefixes per ASN:                                        10.12
ARIN Region origin ASes announcing only one prefix:                6003
ARIN Region transit ASes present in the Internet Routing Table:    1651
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:              1064983360
    Equivalent to 63 /8s, 122 /16s and 91 /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:                    117660
    Total RIPE prefixes after maximum aggregation:                60170
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           121071
    Unique aggregates announced from the RIPE address blocks:     78453
RIPE Region origin ASes present in the Internet Routing Table:    17243
    RIPE Prefixes per ASN:                                         7.02
RIPE Region origin ASes announcing only one prefix:                8167
RIPE Region transit ASes present in the Internet Routing Table:    2836
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2368
Number of RIPE addresses announced to Internet:               656543076
    Equivalent to 39 /8s, 34 /16s and 13 /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:                   48506
    Total LACNIC prefixes after maximum aggregation:               9325
    LACNIC Deaggregation factor:                                   5.20
Prefixes being announced from the LACNIC address blocks:          52873
    Unique aggregates announced from the LACNIC address blocks:   24612
LACNIC Region origin ASes present in the Internet Routing Table:   1966
    LACNIC Prefixes per ASN:                                      26.89
LACNIC Region origin ASes announcing only one prefix:               584
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:   765
Number of LACNIC addresses announced to Internet:             132564904
    Equivalent to 7 /8s, 230 /16s and 199 /24s
    Percentage of available LACNIC address space announced:        79.0

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:                  11084
    Total AfriNIC prefixes after maximum aggregation:              2507
    AfriNIC Deaggregation factor:                                  4.42
Prefixes being announced from the AfriNIC address blocks:         11707
    Unique aggregates announced from the AfriNIC address blocks:   3966
AfriNIC Region origin ASes present in the Internet Routing Table:   640
    AfriNIC Prefixes per ASN:                                     18.29
AfriNIC Region origin ASes announcing only one prefix:              186
AfriNIC Region transit ASes present in the Internet Routing Table:  135
Average AfriNIC Region AS path length visible:                      4.9
    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:             46262016
    Equivalent to 2 /8s, 193 /16s and 231 /24s
    Percentage of available AfriNIC address space announced:       46.0

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     2930      11561         922   Korea Telecom (KIX)
17974     2562        855          92   PT TELEKOMUNIKASI INDONESIA
 7545     2016        320         109   TPG Internet Pty Ltd
 4755     1750        391         192   TATA Communications formerly 
 9829     1519       1205          40   BSNL National Internet Backbo
 9583     1291         98         536   Sify Limited
 4808     1148       2124         335   CNCGROUP IP network: China169
 9498     1144        309          71   BHARTI Airtel Ltd.
 7552     1131       1080          13   Vietel Corporation
24560     1080        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     2991       3691          70   bellsouth.net, inc. 
18566     2064        382         184   Covad Communications 
 1785     1995        678         126   PaeTec Communications, Inc.
22773     1986       2927         123   Cox Communications, Inc.
20115     1665       1617         617   Charter Communications 
 4323     1622       1138         402   Time Warner Telecom
  701     1533      11127         800   UUNET Technologies, Inc. 
30036     1334        299         646   Mediacom Communications Corp 
 7018     1304      11040         827   AT&T WorldNet Services
11492     1221        217         360   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     1661        544          16   Corbina telecom
34984     1284        244         221   BILISIM TELEKOM
 2118     1085         97          13   EUnet/RELCOM Autonomous Syste
20940      911        320         713   Akamai Technologies European 
13188      825         98          79   Educational Network
31148      806         40          25   FreeNet ISP
 8551      776        370          44   Bezeq International
 6830      766       2376         440   UPC Distribution Services
12479      673        789          57   Uni2 Autonomous System
34744      658        171          76   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     2884       1570         105   NET Servicos de Comunicao S.A
10620     2676        420         200   TVCABLE BOGOTA 
 7303     1731       1155         220   Telecom Argentina Stet-France
 8151     1263       2725         388   UniNet S.A. de C.V. 
18881     1064        844          20   Global Village Telecom 
 6503      869        434          63   AVANTEL, S.A. 
27947      818         94          93   Telconet S.A
 3816      717        306          85   Empresa Nacional de Telecomun
 7738      698       1370          35   Telecomunicacoes da Bahia S.A
11172      616         88          65   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     1237         80           4   MOBITEL
24863      884        274          30   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      469        956           9   TEDATA
24835      344         80           8   RAYA Telecom - Egypt
 3741      259        922         218   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
29571      215         17          12   Ci Telecom Autonomous system 
37054      211         11           5   Data Telecom Service
36992      201        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     2991       3691          70   bellsouth.net, inc. 
 4766     2930      11561         922   Korea Telecom (KIX)
28573     2884       1570         105   NET Servicos de Comunicao S.A
10620     2676        420         200   TVCABLE BOGOTA 
17974     2562        855          92   PT TELEKOMUNIKASI INDONESIA
18566     2064        382         184   Covad Communications 
 7545     2016        320         109   TPG Internet Pty Ltd
 1785     1995        678         126   PaeTec Communications, Inc.
22773     1986       2927         123   Cox Communications, Inc.
 4755     1750        391         192   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      2884        2779      NET Servicos de Comunicao S.A
10620      2676        2476      TVCABLE BOGOTA 
17974      2562        2470      PT TELEKOMUNIKASI INDONESIA
 4766      2930        2008      Korea Telecom (KIX)
 7545      2016        1907      TPG Internet Pty Ltd
18566      2064        1880      Covad Communications 
 1785      1995        1869      PaeTec Communications, Inc.
22773      1986        1863      Cox Communications, Inc.
 8402      1661        1645      Corbina telecom
 4755      1750        1558      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     
/13:483     /14:899     /15:1604    /16:12705   /17:6643    /18:11108   
/19:22442   /20:32070   /21:34509   /22:48005   /23:42295   /24:239833  
/25:1305    /26:1639    /27:861     /28:45      /29:65      /30:19      
/31:0       /32:15      

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

  ASN   No of nets  Total ann.   Description
18566     2015          2064      Covad Communications 
 6389     1717          2991      bellsouth.net, inc. 
 8402     1356          1661      Corbina telecom
22773     1293          1986      Cox Communications, Inc.
36998     1231          1237      MOBITEL
30036     1202          1334      Mediacom Communications Corp 
11492     1183          1221      Cable One 
 1785     1063          1995      PaeTec Communications, Inc.
 6983     1015          1145      ITC^Deltacom 
10620      996          2676      TVCABLE BOGOTA 

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

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

   1:838       2:808       3:3         4:19        5:813       6:16     
   8:563      12:1914     13:3        14:856      15:11       16:3      
  17:10       20:17       23:293      24:1769     27:1495     31:1249   
  32:43       33:2        34:5        36:47       37:1872     38:875    
  39:2        40:170      41:2829     42:203      44:8        46:1913   
  47:1        49:660      50:753      52:12       54:35       55:5      
  57:26       58:1159     59:576      60:323      61:1404     62:1120   
  63:2026     64:4334     65:2156     66:4179     67:2043     68:1079   
  69:3274     70:835      71:496      72:1925     74:2459     75:323    
  76:302      77:1113     78:1061     79:624      80:1271     81:1016   
  82:623      83:594      84:585      85:1181     86:457      87:1011   
  88:538      89:1767     90:148      91:5535     92:609      93:1744   
  94:1875     95:1644     96:524      97:345      98:1015     99:42     
 100:30      101:332     103:2872    105:519     106:142     107:207    
 108:510     109:1835    110:909     111:1062    112:545     113:819    
 114:698     115:968     116:962     117:800     118:1106    119:1319   
 120:389     121:733     122:1799    123:1222    124:1376    125:1384   
 128:637     129:225     130:308     131:662     132:359     133:155    
 134:268     135:68      136:223     137:242     138:341     139:190    
 140:209     141:328     142:538     143:380     144:500     145:94     
 146:504     147:384     148:664     149:348     150:157     151:518    
 152:420     153:189     154:24      155:417     156:270     157:399    
 158:279     159:717     160:345     161:455     162:463     163:222    
 164:604     165:498     166:251     167:596     168:1045    169:129    
 170:1054    171:178     172:21      173:1584    174:544     175:472    
 176:988     177:2101    178:1856    179:51      180:1456    181:478    
 182:1250    183:390     184:666     185:574     186:2230    187:1272   
 188:2055    189:1281    190:6716    192:6761    193:5678    194:4612   
 195:3457    196:1374    197:989     198:4499    199:5348    200:5998   
 201:2206    202:8789    203:8896    204:4505    205:2550    206:2797   
 207:2844    208:4036    209:3629    210:2918    211:1516    212:2165   
 213:1974    214:916     215:99      216:5234    217:1625    218:615    
 219:336     220:1282    221:557     222:325     223:447    

End of report




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