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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 17 Nov, 2012

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

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

BGP routing table entries examined:                              432112
    Prefixes after maximum aggregation:                          180096
    Deaggregation factor:                                          2.40
    Unique aggregates announced to Internet:                     212508
Total ASes present in the Internet Routing Table:                 42597
    Prefixes per ASN:                                             10.14
Origin-only ASes present in the Internet Routing Table:           33812
Origin ASes announcing only one prefix:                           15821
Transit ASes present in the Internet Routing Table:                5680
Transit-only ASes present in the Internet Routing Table:            144
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:              1034
    Unregistered ASNs in the Routing Table:                         371
Number of 32-bit ASNs allocated by the RIRs:                       3490
Number of 32-bit ASNs visible in the Routing Table:                3105
Prefixes from 32-bit ASNs in the Routing Table:                    8459
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            153
Number of addresses announced to Internet:                   2612770316
    Equivalent to 155 /8s, 187 /16s and 182 /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:      151794

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

Prefixes being announced by APNIC Region ASes:                   104545
    Total APNIC prefixes after maximum aggregation:               32647
    APNIC Deaggregation factor:                                    3.20
Prefixes being announced from the APNIC address blocks:          105377
    Unique aggregates announced from the APNIC address blocks:    43227
APNIC Region origin ASes present in the Internet Routing Table:    4784
    APNIC Prefixes per ASN:                                       22.03
APNIC Region origin ASes announcing only one prefix:               1241
APNIC Region transit ASes present in the Internet Routing Table:    783
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:    361
Number of APNIC addresses announced to Internet:              713916352
    Equivalent to 42 /8s, 141 /16s and 127 /24s
    Percentage of available APNIC address space announced:         83.4

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:                    155346
    Total ARIN prefixes after maximum aggregation:                78462
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           156129
    Unique aggregates announced from the ARIN address blocks:     69965
ARIN Region origin ASes present in the Internet Routing Table:    15295
    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:    1595
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:              1087292032
    Equivalent to 64 /8s, 206 /16s and 194 /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:                    109952
    Total RIPE prefixes after maximum aggregation:                57875
    RIPE Deaggregation factor:                                     1.90
Prefixes being announced from the RIPE address blocks:           112735
    Unique aggregates announced from the RIPE address blocks:     72764
RIPE Region origin ASes present in the Internet Routing Table:    16963
    RIPE Prefixes per ASN:                                         6.65
RIPE Region origin ASes announcing only one prefix:                8151
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:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2009
Number of RIPE addresses announced to Internet:               648665508
    Equivalent to 38 /8s, 169 /16s and 217 /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:                   44335
    Total LACNIC prefixes after maximum aggregation:               8783
    LACNIC Deaggregation factor:                                   5.05
Prefixes being announced from the LACNIC address blocks:          47843
    Unique aggregates announced from the LACNIC address blocks:   22811
LACNIC Region origin ASes present in the Internet Routing Table:   1708
    LACNIC Prefixes per ASN:                                      28.01
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:   712
Number of LACNIC addresses announced to Internet:             119477800
    Equivalent to 7 /8s, 31 /16s and 22 /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:                   9357
    Total AfriNIC prefixes after maximum aggregation:              2275
    AfriNIC Deaggregation factor:                                  4.11
Prefixes being announced from the AfriNIC address blocks:          9875
    Unique aggregates announced from the AfriNIC address blocks:   3607
AfriNIC Region origin ASes present in the Internet Routing Table:   565
    AfriNIC Prefixes per ASN:                                     17.48
AfriNIC Region origin ASes announcing only one prefix:              174
AfriNIC Region transit ASes present in the Internet Routing Table:  127
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:             43110912
    Equivalent to 2 /8s, 145 /16s and 210 /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     2958      11557         898   Korea Telecom (KIX)
17974     2421        826          46   PT TELEKOMUNIKASI INDONESIA
 7545     1789        301          87   TPG Internet Pty Ltd
 4755     1614        375         159   TATA Communications formerly 
 9829     1411       1155          42   BSNL National Internet Backbo
 9583     1217         92         529   Sify Limited
 7552     1141       1062          11   Vietel Corporation
 4808     1111       2056         315   CNCGROUP IP network: China169
24560     1040        385         165   Bharti Airtel Ltd., Telemedia
 9498     1021        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     3204        992         191   Windstream Communications Inc
 6389     3157       3721         155   bellsouth.net, inc. 
18566     2084        382         180   Covad Communications 
22773     1942       2931         129   Cox Communications, Inc.
 1785     1931        678         126   PaeTec Communications, Inc.
20115     1680       1601         634   Charter Communications 
 4323     1586       1153         392   Time Warner Telecom
30036     1363        284         766   Mediacom Communications Corp 
 7018     1279      10276         855   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     1725        544          16   Corbina telecom
12479      854        777          64   Uni2 Autonomous System
34984      840        210         207   BILISIM TELEKOM
31148      731         37           9   FreeNet ISP
13188      726         93         130   Educational Network
20940      713        230         552   Akamai Technologies European 
 6830      712       2313         435   UPC Distribution Services
 2118      691         97          14   EUnet/RELCOM Autonomous Syste
58113      602         67         365   LIR DATACENTER TELECOM SRL
 8551      595        364          61   Bezeq International

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     2177       1285          65   NET Servicos de Comunicao S.A
 7303     1668       1138         201   Telecom Argentina Stet-France
 8151     1603       3044         356   UniNet S.A. de C.V. 
 6503     1538        435          67   AVANTEL, S.A. 
27947      748         77          92   Telconet S.A
 3816      655        309          69   Empresa Nacional de Telecomun
11172      592         85          68   Servicios Alestra S.A de C.V 
18881      587        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      864        274          36   LINKdotNET AS number
36998      606         48           3   MOBITEL
 8452      533        958          13   TEDATA
 6713      516        650          19   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      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     3157       3721         155   bellsouth.net, inc. 
 4766     2958      11557         898   Korea Telecom (KIX)
17974     2421        826          46   PT TELEKOMUNIKASI INDONESIA
10620     2251        384         208   TVCABLE BOGOTA 
28573     2177       1285          65   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
22773     1942       2931         129   Cox Communications, Inc.
 1785     1931        678         126   PaeTec Communications, Inc.
 7545     1789        301          87   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      3157        3002      bellsouth.net, inc. 
17974      2421        2375      PT TELEKOMUNIKASI INDONESIA
28573      2177        2112      NET Servicos de Comunicao S.A
 4766      2958        2060      Korea Telecom (KIX)
10620      2251        2043      TVCABLE BOGOTA 
18566      2084        1904      Covad Communications 
22773      1942        1813      Cox Communications, Inc.
 1785      1931        1805      PaeTec Communications, Inc.
 8402      1725        1709      Corbina telecom
 7545      1789        1702      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
128.0.0.0/24          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
14.192.0.0/22        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
41.220.94.0/23       42235     Intra Data Communication

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     
/13:479     /14:851     /15:1553    /16:12442   /17:6539    /18:10892   
/19:21349   /20:30749   /21:32827   /22:43338   /23:40503   /24:225937  
/25:1357    /26:1696    /27:910     /28:179     /29:79      /30:17      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
 7029     2643          3204      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1783          3157      bellsouth.net, inc. 
 8402     1441          1725      Corbina telecom
30036     1279          1363      Mediacom Communications Corp 
22773     1272          1942      Cox Communications, Inc.
11492     1145          1180      Cable One 
 6503     1054          1538      AVANTEL, S.A. 
 1785     1016          1931      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)
----------------------------------------------

   1:644       2:771       3:1         4:13        5:677       6:3      
   8:481      12:1956     13:3        14:695      15:11       16:3      
  17:6        20:27       23:213      24:1778     27:1409     31:1276   
  32:54       33:2        34:2        36:5        37:949      38:842    
  39:2        40:139      41:2567     42:179      44:3        46:1657   
  47:2        49:498      50:606      52:12       54:27       55:3      
  56:1        57:28       58:1059     59:541      60:237      61:1290   
  62:924      63:2018     64:4339     65:2201     66:4515     67:2103   
  68:1164     69:3228     70:933      71:556      72:1895     74:2615   
  75:483      76:293      77:990      78:1004     79:505      80:1225   
  81:981      82:619      83:540      84:520      85:1156     86:516    
  87:958      88:360      89:1753     90:305      91:5327     92:586    
  93:1467     94:1795     95:1413     96:412      97:323      98:961    
  99:40      100:31      101:292     103:1798    105:409     106:119    
 107:203     108:479     109:1642    110:832     111:976     112:436    
 113:734     114:674     115:880     116:888     117:759     118:959    
 119:1242    120:363     121:672     122:1729    123:1169    124:1334   
 125:1285    128:563     129:201     130:292     131:667     132:315    
 133:143     134:256     135:62      136:218     137:238     138:339    
 139:174     140:505     141:292     142:496     143:373     144:491    
 145:83      146:528     147:268     148:737     149:328     150:153    
 151:215     152:450     153:183     154:21      155:429     156:229    
 157:370     158:281     159:670     160:337     161:414     162:370    
 163:191     164:581     165:447     166:480     167:561     168:973    
 169:130     170:922     171:154     172:7       173:1697    174:636    
 175:453     176:730     177:1430    178:1662    180:1383    181:170    
 182:1098    183:301     184:631     185:68      186:2095    187:1412   
 188:1754    189:1619    190:5802    192:6056    193:5411    194:4288   
 195:3672    196:1239    197:263     198:3939    199:5095    200:6006   
 201:1975    202:8791    203:8704    204:4426    205:2542    206:2765   
 207:2805    208:4071    209:3610    210:2885    211:1530    212:2152   
 213:1869    214:896     215:75      216:5188    217:1580    218:577    
 219:312     220:1259    221:531     222:337     223:410    

End of report