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Weekly Routing Table Report



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 01 Dec, 2012

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

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

BGP routing table entries examined:                              434185
    Prefixes after maximum aggregation:                          180393
    Deaggregation factor:                                          2.41
    Unique aggregates announced to Internet:                     212775
Total ASes present in the Internet Routing Table:                 42729
    Prefixes per ASN:                                             10.16
Origin-only ASes present in the Internet Routing Table:           33874
Origin ASes announcing only one prefix:                           15815
Transit ASes present in the Internet Routing Table:                5690
Transit-only ASes present in the Internet Routing Table:            135
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      41
    Max AS path prepend of ASN ( 22394)                              35
Prefixes from unregistered ASNs in the Routing Table:              1103
    Unregistered ASNs in the Routing Table:                         406
Number of 32-bit ASNs allocated by the RIRs:                       3544
Number of 32-bit ASNs visible in the Routing Table:                3165
Prefixes from 32-bit ASNs in the Routing Table:                    8591
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            146
Number of addresses announced to Internet:                   2614823628
    Equivalent to 155 /8s, 219 /16s and 10 /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:               93.9
Total number of prefixes smaller than registry allocations:      153016

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

Prefixes being announced by APNIC Region ASes:                   104809
    Total APNIC prefixes after maximum aggregation:               32640
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          105681
    Unique aggregates announced from the APNIC address blocks:    43268
APNIC Region origin ASes present in the Internet Routing Table:    4800
    APNIC Prefixes per ASN:                                       22.02
APNIC Region origin ASes announcing only one prefix:               1244
APNIC Region transit ASes present in the Internet Routing Table:    786
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:    375
Number of APNIC addresses announced to Internet:              715311872
    Equivalent to 42 /8s, 162 /16s and 203 /24s
    Percentage of available APNIC address space announced:         83.6

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:                    155613
    Total ARIN prefixes after maximum aggregation:                78549
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           156347
    Unique aggregates announced from the ARIN address blocks:     69911
ARIN Region origin ASes present in the Internet Routing Table:    15313
    ARIN Prefixes per ASN:                                        10.21
ARIN Region origin ASes announcing only one prefix:                5771
ARIN Region transit ASes present in the Internet Routing Table:    1598
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          41
Number of ARIN region 32-bit ASNs visible in the Routing Table:      18
Number of ARIN addresses announced to Internet:              1087539840
    Equivalent to 64 /8s, 210 /16s and 138 /24s
    Percentage of available ARIN address space announced:          57.5

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, 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:                    110794
    Total RIPE prefixes after maximum aggregation:                57939
    RIPE Deaggregation factor:                                     1.91
Prefixes being announced from the RIPE address blocks:           113671
    Unique aggregates announced from the RIPE address blocks:     73036
RIPE Region origin ASes present in the Internet Routing Table:    16973
    RIPE Prefixes per ASN:                                         6.70
RIPE Region origin ASes announcing only one prefix:                8130
RIPE Region transit ASes present in the Internet Routing Table:    2750
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2051
Number of RIPE addresses announced to Internet:               648513060
    Equivalent to 38 /8s, 167 /16s and 134 /24s
    Percentage of available RIPE address space announced:          94.3

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:                   44625
    Total LACNIC prefixes after maximum aggregation:               8910
    LACNIC Deaggregation factor:                                   5.01
Prefixes being announced from the LACNIC address blocks:          48145
    Unique aggregates announced from the LACNIC address blocks:   22869
LACNIC Region origin ASes present in the Internet Routing Table:   1732
    LACNIC Prefixes per ASN:                                      27.80
LACNIC Region origin ASes announcing only one prefix:               496
LACNIC Region transit ASes present in the Internet Routing Table:   330
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   715
Number of LACNIC addresses announced to Internet:             120089384
    Equivalent to 7 /8s, 40 /16s and 107 /24s
    Percentage of available LACNIC address space announced:        71.6

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       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:                   9637
    Total AfriNIC prefixes after maximum aggregation:              2298
    AfriNIC Deaggregation factor:                                  4.19
Prefixes being announced from the AfriNIC address blocks:         10195
    Unique aggregates announced from the AfriNIC address blocks:   3564
AfriNIC Region origin ASes present in the Internet Routing Table:   578
    AfriNIC Prefixes per ASN:                                     17.64
AfriNIC Region origin ASes announcing only one prefix:              174
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:                       16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             43071488
    Equivalent to 2 /8s, 145 /16s and 56 /24s
    Percentage of available AfriNIC address space announced:       42.8

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     2942      11557         900   Korea Telecom (KIX)
17974     2431        826          46   PT TELEKOMUNIKASI INDONESIA
 7545     1811        301          90   TPG Internet Pty Ltd
 4755     1625        374         159   TATA Communications formerly 
 9829     1412       1155          42   BSNL National Internet Backbo
 9583     1182         88         499   Sify Limited
 7552     1142       1062          11   Vietel Corporation
 4808     1126       2056         317   CNCGROUP IP network: China169
24560     1040        385         165   Bharti Airtel Ltd., Telemedia
 9498     1032        310          74   BHARTI Airtel Ltd.

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
 7029     3196        994         218   Windstream Communications Inc
 6389     3145       3719         148   bellsouth.net, inc. 
18566     2083        382         180   Covad Communications 
22773     1938       2932         131   Cox Communications, Inc.
 1785     1935        678         124   PaeTec Communications, Inc.
20115     1684       1607         625   Charter Communications 
 4323     1589       1153         394   Time Warner Telecom
30036     1360        280         750   Mediacom Communications Corp 
 7018     1279      10275         848   AT&T WorldNet Services
 7011     1223        334         693   Citizens Utilities 

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     1715        544          16   Corbina telecom
12479      856        777          64   Uni2 Autonomous System
34984      849        210         215   BILISIM TELEKOM
 2118      784         97          15   EUnet/RELCOM Autonomous Syste
13188      742         94         132   Educational Network
31148      738         38          13   FreeNet ISP
 6830      717       2313         436   UPC Distribution Services
20940      705        227         545   Akamai Technologies European 
 8551      603        367          39   Bezeq International
58113      603         68         366   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
10620     2261        386         206   TVCABLE BOGOTA 
28573     2160       1285          66   NET Servicos de Comunicao S.A
 7303     1668       1138         201   Telecom Argentina Stet-France
 8151     1601       3022         356   UniNet S.A. de C.V. 
 6503     1538        435          67   AVANTEL, S.A. 
27947      754         77          92   Telconet S.A
 3816      659        309          70   Empresa Nacional de Telecomun
11172      603         85          68   Servicios Alestra S.A de C.V 
18881      595        716          18   Global Village Telecom 
 7738      579       1178          33   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
24863      873        274          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 8452      536        958          13   TEDATA
 6713      519        666          20   Itissalat Al-MAGHRIB
24835      289         80           8   RAYA Telecom - Egypt
 3741      268        906         225   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      179        697          88   MTN Network Solutions

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
 7029     3196        994         218   Windstream Communications Inc
 6389     3145       3719         148   bellsouth.net, inc. 
 4766     2942      11557         900   Korea Telecom (KIX)
17974     2431        826          46   PT TELEKOMUNIKASI INDONESIA
10620     2261        386         206   TVCABLE BOGOTA 
28573     2160       1285          66   NET Servicos de Comunicao S.A
18566     2083        382         180   Covad Communications 
22773     1938       2932         131   Cox Communications, Inc.
 1785     1935        678         124   PaeTec Communications, Inc.
 7545     1811        301          90   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
 6389      3145        2997      bellsouth.net, inc. 
17974      2431        2385      PT TELEKOMUNIKASI INDONESIA
28573      2160        2094      NET Servicos de Comunicao S.A
10620      2261        2055      TVCABLE BOGOTA 
 4766      2942        2042      Korea Telecom (KIX)
18566      2083        1903      Covad Communications 
 1785      1935        1811      PaeTec Communications, Inc.
22773      1938        1807      Cox Communications, Inc.
 7545      1811        1721      TPG Internet Pty Ltd
 8402      1715        1699      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
59505   UNALLOCATED  5.2.65.0/24          50673       Serverius AS
59505   UNALLOCATED  5.2.66.0/24          50673       Serverius AS
59530   UNALLOCATED  5.8.182.0/24         31261       GARS Telecom
61408   UNALLOCATED  5.56.0.0/21            174       Cogent Communication
61395   UNALLOCATED  5.83.56.0/22          3292       TDC Tele Danmark
59414   UNALLOCATED  5.102.144.0/21       15576       Nextra backbone in D
59395   UNALLOCATED  5.133.16.0/21         3549       Global Crossing 
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH
59521   UNALLOCATED  5.134.192.0/21       29518       Labs2
59441   UNALLOCATED  5.144.128.0/21       50810       Mobin Net Communicat

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
128.0.24.0/21        41794     Altline LLC
128.0.64.0/22        49466     Declic Telecom SAS
128.0.68.0/22        49466     Declic Telecom SAS
128.0.72.0/21        23456     32-bit ASN transition
128.0.80.0/20        52041     Timer LTD
128.0.104.0/23       51848     FOP Gabidullina Ludmila Nikol
128.0.106.0/24       23456     32-bit ASN transition
128.0.128.0/20       29285     AMT closed joint-stock compan
128.0.144.0/22       59675     >>UNKNOWN<<

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

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

Network            Origin AS  Description
27.112.114.0/24      23884     Proimage Engineering and Comm
41.222.80.0/21       37110     Moztel LDA
41.223.108.0/22      36966     >>UNKNOWN<<
62.12.96.0/19        38478     SunnyVision Limited
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.66.32.0/20        18864     >>UNKNOWN<<
64.187.208.0/24        174     Cogent Communications
64.187.209.0/24      23005     Power Pulse 
65.111.1.0/24        32258     SDN Global 

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        /8:18       /9:13      /10:29      /11:88      /12:243     
/13:478     /14:858     /15:1555    /16:12467   /17:6553    /18:10881   
/19:21495   /20:30777   /21:32846   /22:43646   /23:40544   /24:227407  
/25:1363    /26:1734    /27:885     /28:184     /29:79      /30:17      
/31:0       /32:25      

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

  ASN   No of nets  Total ann.   Description
 7029     2620          3196      Windstream Communications Inc
18566     2033          2083      Covad Communications 
 6389     1781          3145      bellsouth.net, inc. 
 8402     1424          1715      Corbina telecom
22773     1273          1938      Cox Communications, Inc.
30036     1273          1360      Mediacom Communications Corp 
11492     1146          1181      Cable One 
 6503     1054          1538      AVANTEL, S.A. 
 1785     1021          1935      PaeTec Communications, Inc.
 7011      958          1223      Citizens Utilities 

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

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

   1:646       2:753       3:1         4:13        5:660       6:3      
   8:488      12:1953     13:3        14:701      15:10       16:3      
  17:6        20:27       23:217      24:1779     27:1416     31:1297   
  32:54       33:2        34:2        36:7        37:1057     38:845    
  39:2        40:140      41:2624     42:179      44:3        46:1699   
  47:3        49:507      50:619      52:12       54:27       55:7      
  57:28       58:1067     59:550      60:234      61:1287     62:1026   
  63:2022     64:4332     65:2200     66:4499     67:2100     68:1165   
  69:3238     70:926      71:557      72:1893     74:2622     75:479    
  76:299      77:986      78:1020     79:506      80:1227     81:982    
  82:632      83:540      84:529      85:1159     86:477      87:960    
  88:354      89:1744     90:305      91:5352     92:590      93:1574   
  94:2014     95:1202     96:408      97:323      98:972      99:40     
 100:31      101:285     103:1868    105:516     106:119     107:202    
 108:487     109:1669    110:814     111:972     112:459     113:737    
 114:643     115:898     116:888     117:777     118:962     119:1253   
 120:376     121:678     122:1738    123:1179    124:1326    125:1290   
 128:572     129:201     130:294     131:666     132:317     133:143    
 134:254     135:62      136:215     137:238     138:340     139:168    
 140:492     141:294     142:499     143:363     144:492     145:83     
 146:523     147:287     148:735     149:330     150:155     151:221    
 152:398     153:183     154:22      155:440     156:226     157:375    
 158:279     159:673     160:335     161:414     162:370     163:192    
 164:581     165:449     166:479     167:561     168:980     169:130    
 170:977     171:151     172:6       173:1699    174:640     175:441    
 176:889     177:1451    178:1681    180:1351    181:178     182:1116   
 183:303     184:621     185:104     186:2065    187:1437    188:1790   
 189:1603    190:5975    192:6064    193:5428    194:4395    195:3659   
 196:1238    197:272     198:3951    199:5098    200:6018    201:1971   
 202:8803    203:8741    204:4439    205:2554    206:2759    207:2802   
 208:4067    209:3651    210:2900    211:1527    212:2149    213:1870   
 214:886     215:74      216:5180    217:1605    218:588     219:311    
 220:1258    221:533     222:336     223:419    

End of report