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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 10 Nov, 2012

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

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

BGP routing table entries examined:                              430598
    Prefixes after maximum aggregation:                          179737
    Deaggregation factor:                                          2.40
    Unique aggregates announced to Internet:                     211964
Total ASes present in the Internet Routing Table:                 42546
    Prefixes per ASN:                                             10.12
Origin-only ASes present in the Internet Routing Table:           33796
Origin ASes announcing only one prefix:                           15820
Transit ASes present in the Internet Routing Table:                5667
Transit-only ASes present in the Internet Routing Table:            143
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)                              37
Prefixes from unregistered ASNs in the Routing Table:              1021
    Unregistered ASNs in the Routing Table:                         362
Number of 32-bit ASNs allocated by the RIRs:                       3454
Number of 32-bit ASNs visible in the Routing Table:                3083
Prefixes from 32-bit ASNs in the Routing Table:                    8404
Special use prefixes present in the Routing Table:                   14
Prefixes being announced from unallocated address space:            159
Number of addresses announced to Internet:                   2613326316
    Equivalent to 155 /8s, 196 /16s and 49 /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:               93.8
Total number of prefixes smaller than registry allocations:      151196

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

Prefixes being announced by APNIC Region ASes:                   104236
    Total APNIC prefixes after maximum aggregation:               32552
    APNIC Deaggregation factor:                                    3.20
Prefixes being announced from the APNIC address blocks:          105065
    Unique aggregates announced from the APNIC address blocks:    43031
APNIC Region origin ASes present in the Internet Routing Table:    4787
    APNIC Prefixes per ASN:                                       21.95
APNIC Region origin ASes announcing only one prefix:               1247
APNIC Region transit ASes present in the Internet Routing Table:    780
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:    354
Number of APNIC addresses announced to Internet:              714174880
    Equivalent to 42 /8s, 145 /16s and 113 /24s
    Percentage of available APNIC address space announced:         83.5

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:                    155121
    Total ARIN prefixes after maximum aggregation:                78402
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           155953
    Unique aggregates announced from the ARIN address blocks:     69890
ARIN Region origin ASes present in the Internet Routing Table:    15281
    ARIN Prefixes per ASN:                                        10.21
ARIN Region origin ASes announcing only one prefix:                5769
ARIN Region transit ASes present in the Internet Routing Table:    1594
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:      17
Number of ARIN addresses announced to Internet:              1087874432
    Equivalent to 64 /8s, 215 /16s and 165 /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:                    108902
    Total RIPE prefixes after maximum aggregation:                57789
    RIPE Deaggregation factor:                                     1.88
Prefixes being announced from the RIPE address blocks:           111641
    Unique aggregates announced from the RIPE address blocks:     72576
RIPE Region origin ASes present in the Internet Routing Table:    16950
    RIPE Prefixes per ASN:                                         6.59
RIPE Region origin ASes announcing only one prefix:                8148
RIPE Region transit ASes present in the Internet Routing Table:    2752
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2004
Number of RIPE addresses announced to Internet:               648615332
    Equivalent to 38 /8s, 169 /16s and 21 /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:                   44231
    Total LACNIC prefixes after maximum aggregation:               8710
    LACNIC Deaggregation factor:                                   5.08
Prefixes being announced from the LACNIC address blocks:          47694
    Unique aggregates announced from the LACNIC address blocks:   22765
LACNIC Region origin ASes present in the Internet Routing Table:   1701
    LACNIC Prefixes per ASN:                                      28.04
LACNIC Region origin ASes announcing only one prefix:               481
LACNIC Region transit ASes present in the Internet Routing Table:   326
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   702
Number of LACNIC addresses announced to Internet:             119237416
    Equivalent to 7 /8s, 27 /16s and 107 /24s
    Percentage of available LACNIC address space announced:        71.1

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:                   9585
    Total AfriNIC prefixes after maximum aggregation:              2230
    AfriNIC Deaggregation factor:                                  4.30
Prefixes being announced from the AfriNIC address blocks:         10086
    Unique aggregates announced from the AfriNIC address blocks:   3567
AfriNIC Region origin ASes present in the Internet Routing Table:   568
    AfriNIC Prefixes per ASN:                                     17.76
AfriNIC Region origin ASes announcing only one prefix:              175
AfriNIC Region transit ASes present in the Internet Routing Table:  122
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:             43120640
    Equivalent to 2 /8s, 145 /16s and 248 /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     2959      11557         898   Korea Telecom (KIX)
17974     2421        826          46   PT TELEKOMUNIKASI INDONESIA
 7545     1802        301          88   TPG Internet Pty Ltd
 4755     1613        375         159   TATA Communications formerly 
 9829     1412       1155          42   BSNL National Internet Backbo
 9583     1190         88         508   Sify Limited
 7552     1131       1062          11   Vietel Corporation
 4808     1111       2056         315   CNCGROUP IP network: China169
24560     1039        385         165   Bharti Airtel Ltd., Telemedia
 9498     1020        310          73   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     3204        992         191   Windstream Communications Inc
 6389     3167       3722         159   bellsouth.net, inc. 
18566     2084        382         180   Covad Communications 
22773     1972       2931         128   Cox Communications, Inc.
 1785     1933        678         128   PaeTec Communications, Inc.
20115     1670       1603         626   Charter Communications 
 4323     1589       1153         392   Time Warner Telecom
30036     1374        283         745   Mediacom Communications Corp 
 7018     1268      10275         846   AT&T WorldNet Services
 7011     1220        333         692   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     1738        544          16   Corbina telecom
12479      853        777          63   Uni2 Autonomous System
34984      829        207         199   BILISIM TELEKOM
31148      726         37           9   FreeNet ISP
13188      724         93         139   Educational Network
 6830      712       2313         435   UPC Distribution Services
20940      711        228         548   Akamai Technologies European 
58113      602         67         365   LIR DATACENTER TELECOM SRL
 8551      596        364          61   Bezeq International
 3320      494       8438         405   Deutsche Telekom AG

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     2251        384         208   TVCABLE BOGOTA 
28573     2170       1283          64   NET Servicos de Comunicao S.A
 7303     1663       1139         202   Telecom Argentina Stet-France
 8151     1596       3035         347   UniNet S.A. de C.V. 
 6503     1539        435          67   AVANTEL, S.A. 
27947      747         77          91   Telconet S.A
 3816      654        309          75   Empresa Nacional de Telecomun
11172      588         85          65   Servicios Alestra S.A de C.V 
18881      584        716          18   Global Village Telecom 
 7738      582       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      903        275          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 8452      547        958          13   TEDATA
 6713      516        650          19   Itissalat Al-MAGHRIB
24835      287         80           8   RAYA Telecom - Egypt
 3741      267        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      181        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     3204        992         191   Windstream Communications Inc
 6389     3167       3722         159   bellsouth.net, inc. 
 4766     2959      11557         898   Korea Telecom (KIX)
17974     2421        826          46   PT TELEKOMUNIKASI INDONESIA
10620     2251        384         208   TVCABLE BOGOTA 
28573     2170       1283          64   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
22773     1972       2931         128   Cox Communications, Inc.
 1785     1933        678         128   PaeTec Communications, Inc.
 7545     1802        301          88   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      3167        3008      bellsouth.net, inc. 
17974      2421        2375      PT TELEKOMUNIKASI INDONESIA
28573      2170        2106      NET Servicos de Comunicao S.A
 4766      2959        2061      Korea Telecom (KIX)
10620      2251        2043      TVCABLE BOGOTA 
18566      2084        1904      Covad Communications 
22773      1972        1844      Cox Communications, Inc.
 1785      1933        1805      PaeTec Communications, Inc.
 8402      1738        1722      Corbina telecom
 7545      1802        1714      TPG Internet Pty Ltd

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
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
59581   UNALLOCATED  5.149.8.0/21         25577       C4L main AS

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
128.0.24.0/21        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<<
128.0.160.0/21       23456     32-bit ASN transition

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

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

Network            Origin AS  Description
14.192.0.0/22        45464     Room 201, TGU Bldg
14.192.4.0/22        45464     Room 201, TGU Bldg
14.192.8.0/22        45464     Room 201, TGU Bldg
14.192.12.0/22       45464     Room 201, TGU Bldg
14.192.16.0/22       45464     Room 201, TGU Bldg
14.192.20.0/22       45464     Room 201, TGU Bldg
14.192.24.0/22       45464     Room 201, TGU Bldg
14.192.28.0/22       45464     Room 201, TGU Bldg
27.112.114.0/24      23884     Proimage Engineering and Comm
41.220.80.0/24       38925     DAC AS Germany

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     
/13:480     /14:851     /15:1552    /16:12448   /17:6535    /18:10898   
/19:21305   /20:30713   /21:32757   /22:43317   /23:40393   /24:224694  
/25:1361    /26:1697    /27:905     /28:182     /29:78      /30:17      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
 7029     2644          3204      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1786          3167      bellsouth.net, inc. 
 8402     1450          1738      Corbina telecom
22773     1300          1972      Cox Communications, Inc.
30036     1291          1374      Mediacom Communications Corp 
11492     1149          1184      Cable One 
 6503     1054          1539      AVANTEL, S.A. 
 1785     1018          1933      PaeTec Communications, Inc.
 7011      955          1220      Citizens Utilities 

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

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

   1:645       2:780       3:1         4:13        5:641       6:3      
   8:477      12:1955     13:3        14:688      15:11       16:3      
  17:6        20:27       23:211      24:1813     27:1396     31:1034   
  32:54       33:2        34:2        36:7        37:930      38:837    
  39:2        40:138      41:2657     42:177      44:3        46:1648   
  47:2        49:505      50:607      52:12       54:27       55:5      
  56:4        57:27       58:986      59:544      60:237      61:1296   
  62:948      63:2018     64:4296     65:2202     66:4523     67:2102   
  68:1159     69:3221     70:936      71:554      72:1889     74:2620   
  75:478      76:284      77:992      78:1008     79:512      80:1242   
  81:980      82:629      83:539      84:520      85:1149     86:507    
  87:945      88:350      89:1739     90:305      91:5306     92:580    
  93:1411     94:1710     95:1281     96:412      97:325      98:971    
  99:39      100:31      101:291     103:1762    105:519     106:121    
 107:203     108:478     109:1632    110:831     111:978     112:435    
 113:738     114:676     115:895     116:883     117:758     118:967    
 119:1233    120:362     121:693     122:1698    123:1163    124:1332   
 125:1288    128:554     129:200     130:292     131:661     132:315    
 133:142     134:253     135:62      136:217     137:238     138:339    
 139:175     140:503     141:291     142:496     143:378     144:493    
 145:83      146:525     147:267     148:737     149:327     150:157    
 151:211     152:451     153:183     154:21      155:432     156:228    
 157:364     158:285     159:670     160:337     161:414     162:369    
 163:191     164:581     165:446     166:454     167:561     168:980    
 169:130     170:919     171:151     172:7       173:1699    174:635    
 175:471     176:728     177:1396    178:1642    180:1383    181:167    
 182:1108    183:302     184:617     185:54      186:2071    187:1397   
 188:1747    189:1623    190:5835    192:6049    193:5407    194:4134   
 195:3462    196:1229    197:260     198:3906    199:5092    200:5999   
 201:1974    202:8735    203:8714    204:4427    205:2537    206:2761   
 207:2807    208:4067    209:3626    210:2832    211:1531    212:2140   
 213:1848    214:892     215:75      216:5167    217:1572    218:577    
 219:311     220:1260    221:531     222:337     223:405    

End of report