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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 24 Nov, 2012

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

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

BGP routing table entries examined:                              433102
    Prefixes after maximum aggregation:                          180255
    Deaggregation factor:                                          2.40
    Unique aggregates announced to Internet:                     212958
Total ASes present in the Internet Routing Table:                 42668
    Prefixes per ASN:                                             10.15
Origin-only ASes present in the Internet Routing Table:           33846
Origin ASes announcing only one prefix:                           15810
Transit ASes present in the Internet Routing Table:                5685
Transit-only ASes present in the Internet Routing Table:            146
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      40
    Max AS path prepend of ASN ( 22394)                              36
Prefixes from unregistered ASNs in the Routing Table:              1075
    Unregistered ASNs in the Routing Table:                         391
Number of 32-bit ASNs allocated by the RIRs:                       3517
Number of 32-bit ASNs visible in the Routing Table:                3137
Prefixes from 32-bit ASNs in the Routing Table:                    8493
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            142
Number of addresses announced to Internet:                   2614015436
    Equivalent to 155 /8s, 206 /16s and 181 /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:      152688

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

Prefixes being announced by APNIC Region ASes:                   104685
    Total APNIC prefixes after maximum aggregation:               32638
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          105522
    Unique aggregates announced from the APNIC address blocks:    43207
APNIC Region origin ASes present in the Internet Routing Table:    4790
    APNIC Prefixes per ASN:                                       22.03
APNIC Region origin ASes announcing only one prefix:               1245
APNIC Region transit ASes present in the Internet Routing Table:    785
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:    369
Number of APNIC addresses announced to Internet:              714988544
    Equivalent to 42 /8s, 157 /16s and 220 /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:                    155445
    Total ARIN prefixes after maximum aggregation:                78480
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           156204
    Unique aggregates announced from the ARIN address blocks:     70101
ARIN Region origin ASes present in the Internet Routing Table:    15305
    ARIN Prefixes per ASN:                                        10.21
ARIN Region origin ASes announcing only one prefix:                5768
ARIN Region transit ASes present in the Internet Routing Table:    1600
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          40
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1087357824
    Equivalent to 64 /8s, 207 /16s and 195 /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:                    110433
    Total RIPE prefixes after maximum aggregation:                57925
    RIPE Deaggregation factor:                                     1.91
Prefixes being announced from the RIPE address blocks:           113258
    Unique aggregates announced from the RIPE address blocks:     73050
RIPE Region origin ASes present in the Internet Routing Table:    16968
    RIPE Prefixes per ASN:                                         6.67
RIPE Region origin ASes announcing only one prefix:                8133
RIPE Region transit ASes present in the Internet Routing Table:    2751
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2029
Number of RIPE addresses announced to Internet:               648840484
    Equivalent to 38 /8s, 172 /16s and 133 /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:                   44379
    Total LACNIC prefixes after maximum aggregation:               8880
    LACNIC Deaggregation factor:                                   5.00
Prefixes being announced from the LACNIC address blocks:          47907
    Unique aggregates announced from the LACNIC address blocks:   22966
LACNIC Region origin ASes present in the Internet Routing Table:   1715
    LACNIC Prefixes per ASN:                                      27.93
LACNIC Region origin ASes announcing only one prefix:               487
LACNIC Region transit ASes present in the Internet Routing Table:   328
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:   716
Number of LACNIC addresses announced to Internet:             119525160
    Equivalent to 7 /8s, 31 /16s and 207 /24s
    Percentage of available LACNIC address space announced:        71.2

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:                   9551
    Total AfriNIC prefixes after maximum aggregation:              2277
    AfriNIC Deaggregation factor:                                  4.19
Prefixes being announced from the AfriNIC address blocks:         10069
    Unique aggregates announced from the AfriNIC address blocks:   3511
AfriNIC Region origin ASes present in the Internet Routing Table:   574
    AfriNIC Prefixes per ASN:                                     17.54
AfriNIC Region origin ASes announcing only one prefix:              177
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:             43010560
    Equivalent to 2 /8s, 144 /16s and 74 /24s
    Percentage of available AfriNIC address space announced:       42.7

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     2949      11557         900   Korea Telecom (KIX)
17974     2431        826          46   PT TELEKOMUNIKASI INDONESIA
 7545     1802        301          89   TPG Internet Pty Ltd
 4755     1622        374         158   TATA Communications formerly 
 9829     1411       1155          42   BSNL National Internet Backbo
 9583     1181         88         498   Sify Limited
 7552     1140       1062          11   Vietel Corporation
 4808     1126       2056         317   CNCGROUP IP network: China169
24560     1040        385         165   Bharti Airtel Ltd., Telemedia
 9498     1028        310          75   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     3201        991         190   Windstream Communications Inc
 6389     3152       3720         151   bellsouth.net, inc. 
18566     2084        382         180   Covad Communications 
22773     1945       2931         129   Cox Communications, Inc.
 1785     1932        678         126   PaeTec Communications, Inc.
20115     1684       1607         625   Charter Communications 
 4323     1587       1153         393   Time Warner Telecom
30036     1365        281         749   Mediacom Communications Corp 
 7018     1281      10276         851   AT&T WorldNet Services
 7011     1222        334         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     1765        544          16   Corbina telecom
12479      857        777          64   Uni2 Autonomous System
34984      848        210         214   BILISIM TELEKOM
13188      739         94         130   Educational Network
31148      731         37           9   FreeNet ISP
 6830      716       2313         435   UPC Distribution Services
20940      710        228         548   Akamai Technologies European 
58113      602         67         365   LIR DATACENTER TELECOM SRL
 8551      601        367          39   Bezeq International
 2118      595         97          14   EUnet/RELCOM Autonomous Syste

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     2260        386         205   TVCABLE BOGOTA 
28573     2178       1285          66   NET Servicos de Comunicao S.A
 7303     1668       1138         201   Telecom Argentina Stet-France
 8151     1600       3045         361   UniNet S.A. de C.V. 
 6503     1538        435          67   AVANTEL, S.A. 
27947      752         77          92   Telconet S.A
 3816      660        309          70   Empresa Nacional de Telecomun
11172      603         85          68   Servicios Alestra S.A de C.V 
18881      594        716          18   Global Village Telecom 
22047      579        326          15   VTR PUNTO NET 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      871        274          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 6713      518        666          20   Itissalat Al-MAGHRIB
 8452      515        958          13   TEDATA
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      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     3201        991         190   Windstream Communications Inc
 6389     3152       3720         151   bellsouth.net, inc. 
 4766     2949      11557         900   Korea Telecom (KIX)
17974     2431        826          46   PT TELEKOMUNIKASI INDONESIA
10620     2260        386         205   TVCABLE BOGOTA 
28573     2178       1285          66   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
22773     1945       2931         129   Cox Communications, Inc.
 1785     1932        678         126   PaeTec Communications, Inc.
 7545     1802        301          89   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      3152        3001      bellsouth.net, inc. 
17974      2431        2385      PT TELEKOMUNIKASI INDONESIA
28573      2178        2112      NET Servicos de Comunicao S.A
10620      2260        2055      TVCABLE BOGOTA 
 4766      2949        2049      Korea Telecom (KIX)
18566      2084        1904      Covad Communications 
22773      1945        1816      Cox Communications, Inc.
 1785      1932        1806      PaeTec Communications, Inc.
 8402      1765        1749      Corbina telecom
 7545      1802        1713      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
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
14.192.20.0/22       45464     Room 201, TGU Bldg
14.192.24.0/22       45464     Room 201, TGU Bldg
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

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      /12:242     
/13:477     /14:857     /15:1556    /16:12439   /17:6547    /18:10885   
/19:21423   /20:30769   /21:32783   /22:43599   /23:40541   /24:226565  
/25:1364    /26:1713    /27:894     /28:178     /29:79      /30:17      
/31:0       /32:26      

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

  ASN   No of nets  Total ann.   Description
 7029     2641          3201      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1782          3152      bellsouth.net, inc. 
 8402     1483          1765      Corbina telecom
30036     1279          1365      Mediacom Communications Corp 
22773     1275          1945      Cox Communications, Inc.
11492     1145          1180      Cable One 
 6503     1055          1538      AVANTEL, S.A. 
 1785     1017          1932      PaeTec Communications, Inc.
 7011      957          1222      Citizens Utilities 

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

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

   1:654       2:779       3:1         4:13        5:654       6:3      
   8:487      12:1958     13:3        14:698      15:11       16:3      
  17:6        20:27       23:213      24:1779     27:1417     31:1277   
  32:54       33:2        34:2        36:7        37:1042     38:843    
  39:2        40:140      41:2612     42:179      44:3        46:1668   
  47:2        49:506      50:612      52:12       54:27       55:4      
  57:28       58:1062     59:549      60:234      61:1284     62:1029   
  63:2025     64:4337     65:2200     66:4513     67:2101     68:1162   
  69:3232     70:928      71:556      72:1895     74:2617     75:484    
  76:299      77:993      78:1013     79:505      80:1234     81:985    
  82:622      83:539      84:523      85:1159     86:514      87:957    
  88:348      89:1745     90:305      91:5348     92:589      93:1530   
  94:1815     95:1413     96:409      97:323      98:976      99:40     
 100:31      101:291     103:1830    105:514     106:119     107:203    
 108:480     109:1653    110:821     111:983     112:459     113:735    
 114:686     115:901     116:887     117:779     118:961     119:1241   
 120:367     121:677     122:1739    123:1170    124:1327    125:1289   
 128:561     129:201     130:294     131:664     132:310     133:143    
 134:253     135:62      136:218     137:238     138:340     139:175    
 140:507     141:290     142:498     143:363     144:483     145:87     
 146:529     147:265     148:738     149:330     150:148     151:220    
 152:398     153:183     154:22      155:434     156:227     157:370    
 158:274     159:670     160:337     161:414     162:370     163:191    
 164:581     165:449     166:478     167:560     168:976     169:130    
 170:918     171:149     172:6       173:1707    174:636     175:436    
 176:735     177:1478    178:1671    180:1384    181:175     182:1113   
 183:302     184:638     185:90      186:2056    187:1410    188:1773   
 189:1593    190:5950    192:6050    193:5417    194:4260    195:3591   
 196:1233    197:270     198:3951    199:5115    200:5955    201:1926   
 202:8810    203:8714    204:4441    205:2547    206:2774    207:2814   
 208:4078    209:3590    210:2875    211:1520    212:2132    213:1864   
 214:868     215:75      216:5199    217:1600    218:583     219:311    
 220:1258    221:529     222:337     223:414    

End of report