Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 16 18:33:48 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 17 Aug, 2013

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

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

BGP routing table entries examined:                              462841
    Prefixes after maximum aggregation:                          187161
    Deaggregation factor:                                          2.47
    Unique aggregates announced to Internet:                     229257
Total ASes present in the Internet Routing Table:                 44722
    Prefixes per ASN:                                             10.35
Origin-only ASes present in the Internet Routing Table:           34987
Origin ASes announcing only one prefix:                           16208
Transit ASes present in the Internet Routing Table:                5885
Transit-only ASes present in the Internet Routing Table:            156
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 19037)                              22
Prefixes from unregistered ASNs in the Routing Table:              4596
    Unregistered ASNs in the Routing Table:                        1584
Number of 32-bit ASNs allocated by the RIRs:                       4955
Number of 32-bit ASNs visible in the Routing Table:                3850
Prefixes from 32-bit ASNs in the Routing Table:                   11664
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            304
Number of addresses announced to Internet:                   2635027852
    Equivalent to 157 /8s, 15 /16s and 85 /24s
    Percentage of available address space announced:               71.2
    Percentage of allocated address space announced:               71.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.9
Total number of prefixes smaller than registry allocations:      162142

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

Prefixes being announced by APNIC Region ASes:                   110903
    Total APNIC prefixes after maximum aggregation:               33605
    APNIC Deaggregation factor:                                    3.30
Prefixes being announced from the APNIC address blocks:          112709
    Unique aggregates announced from the APNIC address blocks:    46196
APNIC Region origin ASes present in the Internet Routing Table:    4867
    APNIC Prefixes per ASN:                                       23.16
APNIC Region origin ASes announcing only one prefix:               1223
APNIC Region transit ASes present in the Internet Routing Table:    824
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:    638
Number of APNIC addresses announced to Internet:              725990208
    Equivalent to 43 /8s, 69 /16s and 187 /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:                    160372
    Total ARIN prefixes after maximum aggregation:                80867
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           160922
    Unique aggregates announced from the ARIN address blocks:     74720
ARIN Region origin ASes present in the Internet Routing Table:    15828
    ARIN Prefixes per ASN:                                        10.17
ARIN Region origin ASes announcing only one prefix:                5998
ARIN Region transit ASes present in the Internet Routing Table:    1660
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:              1070350848
    Equivalent to 63 /8s, 204 /16s and 66 /24s
    Percentage of available ARIN address space announced:          56.6

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:                    117912
    Total RIPE prefixes after maximum aggregation:                60555
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           121724
    Unique aggregates announced from the RIPE address blocks:     78516
RIPE Region origin ASes present in the Internet Routing Table:    17350
    RIPE Prefixes per ASN:                                         7.02
RIPE Region origin ASes announcing only one prefix:                8219
RIPE Region transit ASes present in the Internet Routing Table:    2810
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          27
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2386
Number of RIPE addresses announced to Internet:               656724772
    Equivalent to 39 /8s, 36 /16s and 211 /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:                   50343
    Total LACNIC prefixes after maximum aggregation:               9566
    LACNIC Deaggregation factor:                                   5.26
Prefixes being announced from the LACNIC address blocks:          55020
    Unique aggregates announced from the LACNIC address blocks:   25639
LACNIC Region origin ASes present in the Internet Routing Table:   2001
    LACNIC Prefixes per ASN:                                      27.50
LACNIC Region origin ASes announcing only one prefix:               578
LACNIC Region transit ASes present in the Internet Routing Table:   369
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:   801
Number of LACNIC addresses announced to Internet:             135157288
    Equivalent to 8 /8s, 14 /16s and 86 /24s
    Percentage of available LACNIC address space announced:        80.6

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:                  11560
    Total AfriNIC prefixes after maximum aggregation:              2528
    AfriNIC Deaggregation factor:                                  4.57
Prefixes being announced from the AfriNIC address blocks:         12162
    Unique aggregates announced from the AfriNIC address blocks:   3903
AfriNIC Region origin ASes present in the Internet Routing Table:   643
    AfriNIC Prefixes per ASN:                                     18.91
AfriNIC Region origin ASes announcing only one prefix:              190
AfriNIC Region transit ASes present in the Internet Routing Table:  131
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46473728
    Equivalent to 2 /8s, 197 /16s and 34 /24s
    Percentage of available AfriNIC address space announced:       46.2

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     2922      11561         918   Korea Telecom (KIX)
17974     2655        871          92   PT TELEKOMUNIKASI INDONESIA
 7545     2056        321         112   TPG Internet Pty Ltd
 4755     1780        393         197   TATA Communications formerly 
 9829     1537       1221          45   BSNL National Internet Backbo
 9583     1224         92         504   Sify Limited
 9498     1175        309          70   BHARTI Airtel Ltd.
 4808     1153       2127         332   CNCGROUP IP network: China169
 7552     1139       1080          13   Vietel Corporation
24560     1088        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     2978       3689          62   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
 1785     2006        679         125   PaeTec Communications, Inc.
22773     2006       2927         123   Cox Communications, Inc.
20115     1675       1646         621   Charter Communications 
 4323     1618       1105         408   Time Warner Telecom
  701     1521      11103         797   UUNET Technologies, Inc. 
30036     1365        305         639   Mediacom Communications Corp 
 7018     1317      11293         832   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     1562        544          16   Corbina telecom
34984     1303        244         221   BILISIM TELEKOM
31148      978         43          17   FreeNet ISP
20940      977        349         748   Akamai Technologies European 
 2118      962         97          13   EUnet/RELCOM Autonomous Syste
 6830      898       2371         429   UPC Distribution Services
13188      843         99          70   Educational Network
 8551      768        370          45   Bezeq International
12479      687        797          53   Uni2 Autonomous System
58113      541         55         339   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     3129       1655         108   NET Servicos de Comunicao S.A
10620     2668        424         223   TVCABLE BOGOTA 
 7303     1730       1157         220   Telecom Argentina Stet-France
18881     1359        844          20   Global Village Telecom 
 8151     1283       2764         392   UniNet S.A. de C.V. 
11830      945        364          15   Instituto Costarricense de El
27947      837         94          91   Telconet S.A
 6503      787        434          63   AVANTEL, S.A. 
 6147      738        374          25   Telefonica Del Peru 
 3816      721        302          83   Empresa Nacional de Telecomun

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     1861        112           5   MOBITEL
24863      874        274          30   LINKdotNET AS number
 6713      543        633          26   Itissalat Al-MAGHRIB
 8452      438        956           9   TEDATA
24835      291         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      220        501          29   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
28573     3129       1655         108   NET Servicos de Comunicao S.A
 6389     2978       3689          62   bellsouth.net, inc. 
 4766     2922      11561         918   Korea Telecom (KIX)
10620     2668        424         223   TVCABLE BOGOTA 
17974     2655        871          92   PT TELEKOMUNIKASI INDONESIA
18566     2065        382         184   Covad Communications 
 7545     2056        321         112   TPG Internet Pty Ltd
 1785     2006        679         125   PaeTec Communications, Inc.
22773     2006       2927         123   Cox Communications, Inc.
36998     1861        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
 6389      2978        2916      bellsouth.net, inc. 
17974      2655        2563      PT TELEKOMUNIKASI INDONESIA
10620      2668        2445      TVCABLE BOGOTA 
 4766      2922        2004      Korea Telecom (KIX)
 7545      2056        1944      TPG Internet Pty Ltd
22773      2006        1883      Cox Communications, Inc.
18566      2065        1881      Covad Communications 
 1785      2006        1881      PaeTec Communications, Inc.
36998      1861        1856      MOBITEL
 4755      1780        1583      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 
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
100.100.0.0/24        4847     China Networks Inter-Exchange

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

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

Network            Origin AS  Description
23.92.16.0/21         8001     Net Access Corporation 
23.92.24.0/22         6939     Hurricane Electric 
23.92.64.0/24        54540     Incero LLC
23.92.65.0/24        54540     Incero LLC
23.92.66.0/24        54540     Incero LLC
23.92.67.0/24        54540     Incero LLC
23.92.68.0/24        54540     Incero LLC
23.92.69.0/24        54540     Incero LLC
23.92.70.0/24        54540     Incero LLC
23.92.71.0/24        54540     Incero LLC

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      /11:93      /12:250     
/13:479     /14:905     /15:1608    /16:12739   /17:6632    /18:11022   
/19:22555   /20:32285   /21:34854   /22:48885   /23:42800   /24:244455  
/25:1044    /26:1426    /27:597     /28:43      /29:75      /30:18      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
36998     1826          1861      MOBITEL
 6389     1713          2978      bellsouth.net, inc. 
22773     1304          2006      Cox Communications, Inc.
 8402     1271          1562      Corbina telecom
30036     1229          1365      Mediacom Communications Corp 
11492     1182          1221      Cable One 
 1785     1079          2006      PaeTec Communications, Inc.
 6983     1024          1152      ITC^Deltacom 
10620      990          2668      TVCABLE BOGOTA 

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

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

   1:811       2:706       3:3         4:19        5:908       6:17     
   8:599      12:1897     13:2        14:868      15:11       16:3      
  17:10       18:19       20:17       23:334      24:1749     27:1540   
  31:1274     32:45       33:2        34:5        36:70       37:1818   
  38:898      39:2        40:180      41:3241     42:259      44:9      
  46:1854     47:3        49:652      50:842      52:12       54:37     
  55:7        57:26       58:1174     59:644      60:330      61:1494   
  62:1181     63:1985     64:4348     65:2155     66:4204     67:2016   
  68:1090     69:3315     70:863      71:492      72:1917     74:2528   
  75:327      76:305      77:1138     78:1007     79:615      80:1307   
  81:1018     82:649      83:587      84:569      85:1214     86:471    
  87:1042     88:537      89:1811     90:158      91:5568     92:625    
  93:1656     94:2015     95:1556     96:587      97:346      98:1029   
  99:42      100:29      101:598     103:3147    105:519     106:139    
 107:210     108:495     109:1865    110:945     111:1098    112:570    
 113:802     114:729     115:1102    116:956     117:800     118:1146   
 119:1288    120:363     121:850     122:1807    123:1243    124:1369   
 125:1411    128:635     129:223     130:302     131:667     132:348    
 133:160     134:277     135:72      136:259     137:242     138:344    
 139:189     140:207     141:321     142:532     143:393     144:498    
 145:93      146:531     147:478     148:678     149:354     150:154    
 151:589     152:413     153:193     154:30      155:415     156:275    
 157:405     158:276     159:745     160:349     161:446     162:580    
 163:222     164:548     165:555     166:255     167:602     168:1033   
 169:126     170:1071    171:188     172:25      173:1581    174:567    
 175:491     176:1173    177:2156    178:1899    179:91      180:1516   
 181:640     182:1225    183:432     184:655     185:757     186:2476   
 187:1401    188:1796    189:1279    190:7004    192:6867    193:5546   
 194:4601    195:3595    196:1327    197:985     198:4590    199:5384   
 200:5981    201:2602    202:8842    203:8870    204:4519    205:2604   
 206:2833    207:2893    208:3992    209:3589    210:2938    211:1553   
 212:2253    213:2019    214:928     215:100     216:5254    217:1651   
 218:618     219:323     220:1277    221:552     222:322     223:465    


End of report



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