[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 1 18:33:52 UTC 2013


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 02 Feb, 2013

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

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

BGP routing table entries examined:                              440794
    Prefixes after maximum aggregation:                          181771
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     216723
Total ASes present in the Internet Routing Table:                 43204
    Prefixes per ASN:                                             10.20
Origin-only ASes present in the Internet Routing Table:           34128
Origin ASes announcing only one prefix:                           15925
Transit ASes present in the Internet Routing Table:                5738
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:                                      44
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               386
    Unregistered ASNs in the Routing Table:                         132
Number of 32-bit ASNs allocated by the RIRs:                       3721
Number of 32-bit ASNs visible in the Routing Table:                3338
Prefixes from 32-bit ASNs in the Routing Table:                    9176
Special use prefixes present in the Routing Table:                   17
Prefixes being announced from unallocated address space:            211
Number of addresses announced to Internet:                   2614575756
    Equivalent to 155 /8s, 215 /16s and 66 /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:               94.2
Total number of prefixes smaller than registry allocations:      155465

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

Prefixes being announced by APNIC Region ASes:                   105955
    Total APNIC prefixes after maximum aggregation:               33038
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          107002
    Unique aggregates announced from the APNIC address blocks:    43739
APNIC Region origin ASes present in the Internet Routing Table:    4815
    APNIC Prefixes per ASN:                                       22.22
APNIC Region origin ASes announcing only one prefix:               1240
APNIC Region transit ASes present in the Internet Routing Table:    807
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    418
Number of APNIC addresses announced to Internet:              717823104
    Equivalent to 42 /8s, 201 /16s and 28 /24s
    Percentage of available APNIC address space announced:         83.9

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:                    155383
    Total ARIN prefixes after maximum aggregation:                78669
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           155986
    Unique aggregates announced from the ARIN address blocks:     70782
ARIN Region origin ASes present in the Internet Routing Table:    15445
    ARIN Prefixes per ASN:                                        10.10
ARIN Region origin ASes announcing only one prefix:                5839
ARIN Region transit ASes present in the Internet Routing Table:    1592
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1075851136
    Equivalent to 64 /8s, 32 /16s and 47 /24s
    Percentage of available ARIN address space announced:          56.9

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:                    113324
    Total RIPE prefixes after maximum aggregation:                58515
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           116432
    Unique aggregates announced from the RIPE address blocks:     74751
RIPE Region origin ASes present in the Internet Routing Table:    17049
    RIPE Prefixes per ASN:                                         6.83
RIPE Region origin ASes announcing only one prefix:                8156
RIPE Region transit ASes present in the Internet Routing Table:    2777
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          44
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2160
Number of RIPE addresses announced to Internet:               653059940
    Equivalent to 38 /8s, 236 /16s and 231 /24s
    Percentage of available RIPE address space announced:          94.9

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:                   46480
    Total LACNIC prefixes after maximum aggregation:               9100
    LACNIC Deaggregation factor:                                   5.11
Prefixes being announced from the LACNIC address blocks:          50224
    Unique aggregates announced from the LACNIC address blocks:   23555
LACNIC Region origin ASes present in the Internet Routing Table:   1794
    LACNIC Prefixes per ASN:                                      28.00
LACNIC Region origin ASes announcing only one prefix:               512
LACNIC Region transit ASes present in the Internet Routing Table:   335
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   736
Number of LACNIC addresses announced to Internet:             123135528
    Equivalent to 7 /8s, 86 /16s and 230 /24s
    Percentage of available LACNIC address space announced:        73.4

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:                  10337
    Total AfriNIC prefixes after maximum aggregation:              2397
    AfriNIC Deaggregation factor:                                  4.31
Prefixes being announced from the AfriNIC address blocks:         10939
    Unique aggregates announced from the AfriNIC address blocks:   3709
AfriNIC Region origin ASes present in the Internet Routing Table:   590
    AfriNIC Prefixes per ASN:                                     18.54
AfriNIC Region origin ASes announcing only one prefix:              178
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:                       17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:             44281856
    Equivalent to 2 /8s, 163 /16s and 176 /24s
    Percentage of available AfriNIC address space announced:       44.0

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     2932      11557         922   Korea Telecom (KIX)
17974     2475        829          53   PT TELEKOMUNIKASI INDONESIA
 7545     1824        301          87   TPG Internet Pty Ltd
 4755     1681        382         188   TATA Communications formerly 
 9829     1425       1150          45   BSNL National Internet Backbo
 9583     1207         90         502   Sify Limited
 7552     1164       1070          12   Vietel Corporation
 4808     1101       2040         315   CNCGROUP IP network: China169
 9498     1054        310          75   BHARTI Airtel Ltd.
24560     1044        385         160   Bharti Airtel Ltd., Telemedia

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

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3093       3699         115   bellsouth.net, inc. 
 7029     2288       1265         211   Windstream Communications Inc
18566     2081        382         183   Covad Communications 
22773     1965       2931         128   Cox Communications, Inc.
 1785     1949        678         123   PaeTec Communications, Inc.
20115     1688       1608         625   Charter Communications 
 4323     1598       1155         394   Time Warner Telecom
30036     1345        287         698   Mediacom Communications Corp 
 7018     1298      10550         859   AT&T WorldNet Services
 7011     1200        315         682   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     1848        544          16   Corbina telecom
 2118     1114         97          13   EUnet/RELCOM Autonomous Syste
34984      974        231         205   BILISIM TELEKOM
13188      842         99          22   Educational Network
12479      836        778          65   Uni2 Autonomous System
31148      755         39          18   FreeNet ISP
20940      742        252         589   Akamai Technologies European 
 8551      714        367          39   Bezeq International
 6830      713       2313         434   UPC Distribution Services
58113      633         70         378   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     2308        395         224   TVCABLE BOGOTA 
28573     2215       1315          81   NET Servicos de Comunicao S.A
 7303     1679       1147         206   Telecom Argentina Stet-France
 8151     1539       2892         379   UniNet S.A. de C.V. 
 6503     1473        435          67   AVANTEL, S.A. 
14754      909        114          72   Telgua S. A. 
27947      774         85          95   Telconet S.A
18881      756        716          18   Global Village Telecom 
 3816      676        306          85   Empresa Nacional de Telecomun
11172      604         86          67   Servicios Alestra S.A de C.V 

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

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
36998     1286         80           4   MOBITEL
24863      896        275          36   LINKdotNET AS number
 8452      529        958          13   TEDATA
 6713      499        602          20   Itissalat Al-MAGHRIB
24835      329         80           8   RAYA Telecom - Egypt
 3741      266        906         224   The Internet Solution 
12258      193         28          67   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      190        696          90   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
 6389     3093       3699         115   bellsouth.net, inc. 
 4766     2932      11557         922   Korea Telecom (KIX)
17974     2475        829          53   PT TELEKOMUNIKASI INDONESIA
10620     2308        395         224   TVCABLE BOGOTA 
 7029     2288       1265         211   Windstream Communications Inc
28573     2215       1315          81   NET Servicos de Comunicao S.A
18566     2081        382         183   Covad Communications 
22773     1965       2931         128   Cox Communications, Inc.
 1785     1949        678         123   PaeTec Communications, Inc.
 8402     1848        544          16   Corbina telecom

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
17974      2475        2422      PT TELEKOMUNIKASI INDONESIA
28573      2215        2134      NET Servicos de Comunicao S.A
10620      2308        2084      TVCABLE BOGOTA 
 7029      2288        2077      Windstream Communications Inc
 4766      2932        2010      Korea Telecom (KIX)
18566      2081        1898      Covad Communications 
22773      1965        1837      Cox Communications, Inc.
 8402      1848        1832      Corbina telecom
 1785      1949        1826      PaeTec Communications, Inc.
 7545      1824        1737      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
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 
26064   UNALLOCATED  12.149.37.0/24        7018       AT&T WorldNet Servic

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

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

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.60.0/23        57417     INTERNET TASMANIA SRL
128.0.62.0/23        57417     INTERNET TASMANIA SRL
128.0.72.0/21        23456     32-bit ASN transition
128.0.80.0/20        52041     Timer LTD
128.0.96.0/21        12886     LEWTelNet GmbH
128.0.104.0/23       51848     FOP Gabidullina Ludmila Nikol
128.0.106.0/24       23456     32-bit ASN transition

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
31.210.16.0/22       15657     Neural Networks ASN
41.222.80.0/21       37110     Moztel LDA
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 
64.185.224.0/24      27431     JTL Networks Inc.
64.185.225.0/24      27431     JTL Networks Inc.
64.185.226.0/24      27431     JTL Networks Inc.
64.185.227.0/24      27431     JTL Networks Inc.

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        /8:17       /9:13      /10:29      /11:88      /12:246     
/13:481     /14:865     /15:1548    /16:12551   /17:6601    /18:10967   
/19:21729   /20:31101   /21:33241   /22:45078   /23:40752   /24:231230  
/25:1364    /26:1742    /27:858     /28:183     /29:73      /30:17      
/31:0       /32:20      

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

  ASN   No of nets  Total ann.   Description
18566     2031          2081      Covad Communications 
 6389     1769          3093      bellsouth.net, inc. 
 7029     1643          2288      Windstream Communications Inc
 8402     1577          1848      Corbina telecom
22773     1292          1965      Cox Communications, Inc.
36998     1280          1286      MOBITEL
30036     1238          1345      Mediacom Communications Corp 
11492     1158          1195      Cable One 
 1785     1031          1949      PaeTec Communications, Inc.
 6503      983          1473      AVANTEL, S.A. 

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

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

   1:684       2:749       3:3         4:13        5:737       6:3      
   8:490      12:1927     13:3        14:719      15:11       16:3      
  17:8        20:25       23:237      24:1799     27:1471     31:1127   
  32:54       33:2        34:5        36:10       37:1230     38:845    
  39:2        40:139      41:2649     42:180      44:4        46:1725   
  47:1        49:547      50:643      52:12       54:28       55:7      
  57:28       58:1078     59:556      60:251      61:1320     62:999    
  63:2027     64:4338     65:2158     66:4265     67:2018     68:1119   
  69:3228     70:858      71:535      72:1879     74:2544     75:421    
  76:291      77:1061     78:1034     79:552      80:1209     81:981    
  82:639      83:534      84:578      85:1147     86:477      87:969    
  88:370      89:1740     90:285      91:5389     92:616      93:1708   
  94:2013     95:1614     96:489      97:333      98:1052     99:52     
 100:30      101:305     103:2059    105:519     106:131     107:208    
 108:508     109:1751    110:848     111:1005    112:482     113:740    
 114:683     115:932     116:877     117:788     118:978     119:1263   
 120:343     121:702     122:1731    123:1178    124:1320    125:1306   
 128:545     129:200     130:312     131:645     132:327     133:143    
 134:254     135:62      136:213     137:237     138:340     139:155    
 140:216     141:314     142:509     143:365     144:474     145:90     
 146:527     147:332     148:730     149:341     150:159     151:328    
 152:399     153:190     154:25      155:367     156:241     157:395    
 158:258     159:708     160:334     161:415     162:370     163:202    
 164:581     165:462     166:465     167:571     168:1007    169:131    
 170:1012    171:164     172:4       173:1543    174:616     175:422    
 176:1002    177:1624    178:1703    180:1375    181:222     182:1157   
 183:323     184:642     185:197     186:2262    187:1464    188:1935   
 189:1547    190:6557    192:6221    193:5671    194:4648    195:3657   
 196:1283    197:808     198:4108    199:5194    200:6005    201:2177   
 202:8803    203:8732    204:4463    205:2545    206:2798    207:2789   
 208:4076    209:3528    210:2912    211:1563    212:1982    213:1886   
 214:906     215:93      216:5073    217:1581    218:591     219:326    
 220:1267    221:548     222:337     223:415    

End of report


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