Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 9 18:33:43 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 10 Aug, 2013

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

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

BGP routing table entries examined:                              463025
    Prefixes after maximum aggregation:                          187283
    Deaggregation factor:                                          2.47
    Unique aggregates announced to Internet:                     229238
Total ASes present in the Internet Routing Table:                 44667
    Prefixes per ASN:                                             10.37
Origin-only ASes present in the Internet Routing Table:           34951
Origin ASes announcing only one prefix:                           16188
Transit ASes present in the Internet Routing Table:                5881
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:              4144
    Unregistered ASNs in the Routing Table:                        1422
Number of 32-bit ASNs allocated by the RIRs:                       4934
Number of 32-bit ASNs visible in the Routing Table:                3835
Prefixes from 32-bit ASNs in the Routing Table:                   11571
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            273
Number of addresses announced to Internet:                   2632015212
    Equivalent to 156 /8s, 225 /16s and 93 /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:      162512

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

Prefixes being announced by APNIC Region ASes:                   111367
    Total APNIC prefixes after maximum aggregation:               33976
    APNIC Deaggregation factor:                                    3.28
Prefixes being announced from the APNIC address blocks:          113162
    Unique aggregates announced from the APNIC address blocks:    46312
APNIC Region origin ASes present in the Internet Routing Table:    4862
    APNIC Prefixes per ASN:                                       23.27
APNIC Region origin ASes announcing only one prefix:               1218
APNIC Region transit ASes present in the Internet Routing Table:    826
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:    632
Number of APNIC addresses announced to Internet:              725744352
    Equivalent to 43 /8s, 65 /16s and 250 /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:                    160175
    Total ARIN prefixes after maximum aggregation:                80768
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           160775
    Unique aggregates announced from the ARIN address blocks:     74685
ARIN Region origin ASes present in the Internet Routing Table:    15817
    ARIN Prefixes per ASN:                                        10.16
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:              1067981120
    Equivalent to 63 /8s, 168 /16s and 25 /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:                    118384
    Total RIPE prefixes after maximum aggregation:                60395
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           122184
    Unique aggregates announced from the RIPE address blocks:     78455
RIPE Region origin ASes present in the Internet Routing Table:    17330
    RIPE Prefixes per ASN:                                         7.05
RIPE Region origin ASes announcing only one prefix:                8208
RIPE Region transit ASes present in the Internet Routing Table:    2812
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:    2381
Number of RIPE addresses announced to Internet:               656776996
    Equivalent to 39 /8s, 37 /16s and 159 /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:                   49809
    Total LACNIC prefixes after maximum aggregation:               9570
    LACNIC Deaggregation factor:                                   5.20
Prefixes being announced from the LACNIC address blocks:          54393
    Unique aggregates announced from the LACNIC address blocks:   25582
LACNIC Region origin ASes present in the Internet Routing Table:   1992
    LACNIC Prefixes per ASN:                                      27.31
LACNIC Region origin ASes announcing only one prefix:               575
LACNIC Region transit ASes present in the Internet Routing Table:   368
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:   797
Number of LACNIC addresses announced to Internet:             134582824
    Equivalent to 8 /8s, 5 /16s and 146 /24s
    Percentage of available LACNIC address space announced:        80.2

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:                  11633
    Total AfriNIC prefixes after maximum aggregation:              2534
    AfriNIC Deaggregation factor:                                  4.59
Prefixes being announced from the AfriNIC address blocks:         12238
    Unique aggregates announced from the AfriNIC address blocks:   3950
AfriNIC Region origin ASes present in the Internet Routing Table:   645
    AfriNIC Prefixes per ASN:                                     18.97
AfriNIC Region origin ASes announcing only one prefix:              184
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:             46602752
    Equivalent to 2 /8s, 199 /16s and 26 /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     2922      11561         917   Korea Telecom (KIX)
17974     2649        871          92   PT TELEKOMUNIKASI INDONESIA
 7545     2053        320         111   TPG Internet Pty Ltd
 4755     1779        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     1155       2127         333   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     2980       3689          63   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
 1785     2006        679         125   PaeTec Communications, Inc.
22773     2004       2927         123   Cox Communications, Inc.
20115     1673       1624         620   Charter Communications 
 4323     1622       1106         408   Time Warner Telecom
  701     1522      11104         799   UUNET Technologies, Inc. 
30036     1377        310         652   Mediacom Communications Corp 
 7018     1320      11037         834   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     1659        544          16   Corbina telecom
34984     1299        244         221   BILISIM TELEKOM
 2118     1159         97          13   EUnet/RELCOM Autonomous Syste
31148      978         43          17   FreeNet ISP
20940      975        348         751   Akamai Technologies European 
 6830      871       2371         429   UPC Distribution Services
13188      843         99          70   Educational Network
 8551      772        370          45   Bezeq International
12479      681        797          53   Uni2 Autonomous System
 9198      570        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     3039       1595         110   NET Servicos de Comunicao S.A
10620     2654        422         231   TVCABLE BOGOTA 
 7303     1730       1157         220   Telecom Argentina Stet-France
18881     1286        844          20   Global Village Telecom 
 8151     1278       2760         394   UniNet S.A. de C.V. 
27947      837         94          91   Telconet S.A
 6503      817        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     1861        112           5   MOBITEL
24863      872        274          30   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      435        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      215        527          23   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     3039       1595         110   NET Servicos de Comunicao S.A
 6389     2980       3689          63   bellsouth.net, inc. 
 4766     2922      11561         917   Korea Telecom (KIX)
10620     2654        422         231   TVCABLE BOGOTA 
17974     2649        871          92   PT TELEKOMUNIKASI INDONESIA
18566     2065        382         184   Covad Communications 
 7545     2053        320         111   TPG Internet Pty Ltd
 1785     2006        679         125   PaeTec Communications, Inc.
22773     2004       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      2980        2917      bellsouth.net, inc. 
17974      2649        2557      PT TELEKOMUNIKASI INDONESIA
10620      2654        2423      TVCABLE BOGOTA 
 4766      2922        2005      Korea Telecom (KIX)
 7545      2053        1942      TPG Internet Pty Ltd
18566      2065        1881      Covad Communications 
 1785      2006        1881      PaeTec Communications, Inc.
22773      2004        1881      Cox Communications, Inc.
36998      1861        1856      MOBITEL
 8402      1659        1643      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
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
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     
/13:480     /14:907     /15:1605    /16:12732   /17:6646    /18:11033   
/19:22531   /20:32233   /21:34772   /22:48835   /23:42725   /24:244185  
/25:1299    /26:1649    /27:839     /28:44      /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     1714          2980      bellsouth.net, inc. 
 8402     1360          1659      Corbina telecom
22773     1304          2004      Cox Communications, Inc.
30036     1239          1377      Mediacom Communications Corp 
11492     1182          1221      Cable One 
 1785     1079          2006      PaeTec Communications, Inc.
 6983     1021          1149      ITC^Deltacom 
10620      986          2654      TVCABLE BOGOTA 

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

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

   1:801       2:752       3:3         4:19        5:913       6:17     
   8:597      12:1904     13:2        14:870      15:11       16:3      
  17:10       18:19       20:17       23:302      24:1772     27:1538   
  31:1347     32:45       33:2        34:5        36:67       37:1803   
  38:892      39:2        40:176      41:3281     42:258      44:7      
  46:1964     47:2        49:658      50:844      52:12       54:37     
  55:7        57:26       58:1171     59:638      60:332      61:1495   
  62:1178     63:2007     64:4339     65:2157     66:4201     67:2042   
  68:1091     69:3301     70:798      71:488      72:1919     74:2513   
  75:324      76:303      77:1133     78:1047     79:613      80:1290   
  81:1018     82:650      83:585      84:568      85:1220     86:465    
  87:1031     88:535      89:1807     90:152      91:5530     92:618    
  93:1655     94:1975     95:1610     96:591      97:346      98:1027   
  99:43      100:29      101:595     103:3118    105:524     106:139    
 107:208     108:520     109:1857    110:943     111:1070    112:568    
 113:814     114:700     115:1097    116:956     117:795     118:1140   
 119:1298    120:361     121:848     122:1808    123:1243    124:1369   
 125:1399    128:638     129:221     130:310     131:667     132:348    
 133:160     134:274     135:72      136:259     137:241     138:344    
 139:189     140:201     141:320     142:532     143:386     144:532    
 145:93      146:534     147:414     148:675     149:351     150:155    
 151:582     152:413     153:191     154:29      155:416     156:274    
 157:402     158:276     159:743     160:349     161:456     162:552    
 163:223     164:582     165:529     166:255     167:601     168:1026   
 169:126     170:1071    171:188     172:23      173:1588    174:554    
 175:492     176:1165    177:2129    178:1908    179:83      180:1512   
 181:607     182:1228    183:420     184:653     185:733     186:2364   
 187:1389    188:1852    189:1273    190:6870    192:6873    193:5621   
 194:4718    195:3597    196:1330    197:998     198:4583    199:5382   
 200:5994    201:2430    202:8843    203:8894    204:4524    205:2595   
 206:2831    207:2899    208:4002    209:3597    210:2939    211:1531   
 212:2247    213:2042    214:913     215:100     216:5263    217:1644   
 218:619     219:331     220:1278    221:551     222:321     223:462    


End of report



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