[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 22 18:32:57 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 23 Feb, 2013

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

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

BGP routing table entries examined:                              443622
    Prefixes after maximum aggregation:                          182606
    Deaggregation factor:                                          2.43
    Unique aggregates announced to Internet:                     218011
Total ASes present in the Internet Routing Table:                 43375
    Prefixes per ASN:                                             10.23
Origin-only ASes present in the Internet Routing Table:           34205
Origin ASes announcing only one prefix:                           15949
Transit ASes present in the Internet Routing Table:                5771
Transit-only ASes present in the Internet Routing Table:            136
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               387
    Unregistered ASNs in the Routing Table:                         144
Number of 32-bit ASNs allocated by the RIRs:                       3775
Number of 32-bit ASNs visible in the Routing Table:                3399
Prefixes from 32-bit ASNs in the Routing Table:                    9376
Special use prefixes present in the Routing Table:                   17
Prefixes being announced from unallocated address space:            190
Number of addresses announced to Internet:                   2617460108
    Equivalent to 156 /8s, 3 /16s and 69 /24s
    Percentage of available address space announced:               70.7
    Percentage of allocated address space announced:               70.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.3
Total number of prefixes smaller than registry allocations:      156638

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

Prefixes being announced by APNIC Region ASes:                   106390
    Total APNIC prefixes after maximum aggregation:               33025
    APNIC Deaggregation factor:                                    3.22
Prefixes being announced from the APNIC address blocks:          107470
    Unique aggregates announced from the APNIC address blocks:    43851
APNIC Region origin ASes present in the Internet Routing Table:    4811
    APNIC Prefixes per ASN:                                       22.34
APNIC Region origin ASes announcing only one prefix:               1235
APNIC Region transit ASes present in the Internet Routing Table:    815
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    432
Number of APNIC addresses announced to Internet:              718525056
    Equivalent to 42 /8s, 211 /16s and 210 /24s
    Percentage of available APNIC address space announced:         84.0

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:                    156143
    Total ARIN prefixes after maximum aggregation:                79021
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           156769
    Unique aggregates announced from the ARIN address blocks:     71334
ARIN Region origin ASes present in the Internet Routing Table:    15482
    ARIN Prefixes per ASN:                                        10.13
ARIN Region origin ASes announcing only one prefix:                5853
ARIN Region transit ASes present in the Internet Routing Table:    1610
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:      18
Number of ARIN addresses announced to Internet:              1076416640
    Equivalent to 64 /8s, 40 /16s and 208 /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:                    113911
    Total RIPE prefixes after maximum aggregation:                58893
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           117124
    Unique aggregates announced from the RIPE address blocks:     75274
RIPE Region origin ASes present in the Internet Routing Table:    17078
    RIPE Prefixes per ASN:                                         6.86
RIPE Region origin ASes announcing only one prefix:                8146
RIPE Region transit ASes present in the Internet Routing Table:    2779
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2197
Number of RIPE addresses announced to Internet:               653652580
    Equivalent to 38 /8s, 245 /16s and 242 /24s
    Percentage of available RIPE address space announced:          95.0

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:                   47067
    Total LACNIC prefixes after maximum aggregation:               9148
    LACNIC Deaggregation factor:                                   5.15
Prefixes being announced from the LACNIC address blocks:          50872
    Unique aggregates announced from the LACNIC address blocks:   23614
LACNIC Region origin ASes present in the Internet Routing Table:   1831
    LACNIC Prefixes per ASN:                                      27.78
LACNIC Region origin ASes announcing only one prefix:               532
LACNIC Region transit ASes present in the Internet Routing Table:   345
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:   745
Number of LACNIC addresses announced to Internet:             123295272
    Equivalent to 7 /8s, 89 /16s and 86 /24s
    Percentage of available LACNIC address space announced:        73.5

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:                  10595
    Total AfriNIC prefixes after maximum aggregation:              2461
    AfriNIC Deaggregation factor:                                  4.31
Prefixes being announced from the AfriNIC address blocks:         11197
    Unique aggregates announced from the AfriNIC address blocks:   3767
AfriNIC Region origin ASes present in the Internet Routing Table:   602
    AfriNIC Prefixes per ASN:                                     18.60
AfriNIC Region origin ASes announcing only one prefix:              183
AfriNIC Region transit ASes present in the Internet Routing Table:  131
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:             45216512
    Equivalent to 2 /8s, 177 /16s and 243 /24s
    Percentage of available AfriNIC address space announced:       44.9

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     2936      11558         925   Korea Telecom (KIX)
17974     2495        824          85   PT TELEKOMUNIKASI INDONESIA
 7545     1827        301          89   TPG Internet Pty Ltd
 4755     1692        382         189   TATA Communications formerly 
 9829     1424       1140          43   BSNL National Internet Backbo
 9583     1207         90         499   Sify Limited
 7552     1161       1070          12   Vietel Corporation
 4808     1116       2057         321   CNCGROUP IP network: China169
 9498     1063        310          75   BHARTI Airtel Ltd.
24560     1047        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     3057       3695          98   bellsouth.net, inc. 
 7029     2168       1265         210   Windstream Communications Inc
18566     2080        382         185   Covad Communications 
22773     1991       2931         127   Cox Communications, Inc.
 1785     1960        677         125   PaeTec Communications, Inc.
20115     1694       1610         619   Charter Communications 
 4323     1605       1140         398   Time Warner Telecom
30036     1349        289         678   Mediacom Communications Corp 
 7018     1310      10552         860   AT&T WorldNet Services
11492     1207        221         334   Cable One 

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     1825        544          16   Corbina telecom
 2118     1115         97          13   EUnet/RELCOM Autonomous Syste
34984     1058        232         204   BILISIM TELEKOM
13188      840         99          22   Educational Network
12479      829        783          68   Uni2 Autonomous System
31148      762         39          20   FreeNet ISP
20940      748        253         591   Akamai Technologies European 
 6830      712       2313         433   UPC Distribution Services
 8551      711        367          39   Bezeq International
34744      681        185          39   SC GVM SISTEM 2003 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
28573     2410       1330          84   NET Servicos de Comunicao S.A
10620     2320        398         224   TVCABLE BOGOTA 
 7303     1681       1147         207   Telecom Argentina Stet-France
 6503     1387        435          67   AVANTEL, S.A. 
 8151     1379       2818         395   UniNet S.A. de C.V. 
14754      938        127          75   Telgua S. A. 
18881      781        716          18   Global Village Telecom 
27947      778         86         100   Telconet S.A
 3816      685        306          85   Empresa Nacional de Telecomun
 7738      613       1242          34   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
36998     1285         80           4   MOBITEL
24863      897        274          36   LINKdotNET AS number
 6713      535        615          23   Itissalat Al-MAGHRIB
 8452      529        958          13   TEDATA
24835      342         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      186        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     3057       3695          98   bellsouth.net, inc. 
 4766     2936      11558         925   Korea Telecom (KIX)
17974     2495        824          85   PT TELEKOMUNIKASI INDONESIA
28573     2410       1330          84   NET Servicos de Comunicao S.A
10620     2320        398         224   TVCABLE BOGOTA 
 7029     2168       1265         210   Windstream Communications Inc
18566     2080        382         185   Covad Communications 
22773     1991       2931         127   Cox Communications, Inc.
 1785     1960        677         125   PaeTec Communications, Inc.
 7545     1827        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
17974      2495        2410      PT TELEKOMUNIKASI INDONESIA
28573      2410        2326      NET Servicos de Comunicao S.A
10620      2320        2096      TVCABLE BOGOTA 
 4766      2936        2011      Korea Telecom (KIX)
 7029      2168        1958      Windstream Communications Inc
18566      2080        1895      Covad Communications 
22773      1991        1864      Cox Communications, Inc.
 1785      1960        1835      PaeTec Communications, Inc.
 8402      1825        1809      Corbina telecom
 7545      1827        1738      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
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.
64.185.228.0/24      27431     JTL Networks Inc.
64.185.229.0/24      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      /12:247     
/13:483     /14:867     /15:1557    /16:12575   /17:6593    /18:10942   
/19:21753   /20:31257   /21:33443   /22:45742   /23:41149   /24:232590  
/25:1386    /26:1752    /27:859     /28:184     /29:60      /30:15      
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
18566     2030          2080      Covad Communications 
 6389     1755          3057      bellsouth.net, inc. 
 7029     1556          2168      Windstream Communications Inc
 8402     1551          1825      Corbina telecom
22773     1304          1991      Cox Communications, Inc.
36998     1279          1285      MOBITEL
30036     1240          1349      Mediacom Communications Corp 
11492     1169          1207      Cable One 
 1785     1039          1960      PaeTec Communications, Inc.
 7011      954          1199      Citizens Utilities 

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

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

   1:681       2:723       3:3         4:13        5:752       6:3      
   8:500      12:1931     13:3        14:745      15:11       16:3      
  17:8        20:24       23:241      24:1801     27:1461     31:1130   
  32:54       33:2        34:5        36:11       37:1291     38:853    
  39:2        40:141      41:2664     42:178      44:3        46:1762   
  47:1        49:611      50:660      52:12       54:28       55:7      
  57:28       58:1074     59:559      60:259      61:1321     62:1025   
  63:2026     64:4308     65:2176     66:4270     67:2037     68:1124   
  69:3261     70:861      71:523      72:1886     74:2548     75:415    
  76:291      77:1091     78:1043     79:573      80:1223     81:970    
  82:627      83:542      84:557      85:1158     86:476      87:930    
  88:378      89:1752     90:265      91:5428     92:621      93:1736   
  94:2075     95:1585     96:494      97:336      98:1040     99:52     
 100:30      101:309     103:2156    105:519     106:133     107:206    
 108:511     109:1767    110:852     111:1014    112:490     113:737    
 114:687     115:931     116:876     117:792     118:974     119:1269   
 120:371     121:702     122:1725    123:1188    124:1315    125:1311   
 128:539     129:199     130:316     131:641     132:327     133:143    
 134:261     135:62      136:221     137:236     138:341     139:167    
 140:218     141:314     142:525     143:376     144:477     145:88     
 146:529     147:347     148:711     149:350     150:165     151:403    
 152:400     153:191     154:29      155:370     156:243     157:391    
 158:263     159:709     160:335     161:422     162:369     163:203    
 164:573     165:447     166:437     167:574     168:1008    169:131    
 170:1022    171:164     172:4       173:1551    174:579     175:424    
 176:1121    177:1685    178:1743    180:1374    181:234     182:1185   
 183:329     184:641     185:251     186:2286    187:1296    188:1928   
 189:1512    190:6621    192:6357    193:5664    194:4508    195:3493   
 196:1314    197:909     198:4158    199:5223    200:6071    201:2199   
 202:8917    203:8732    204:4486    205:2561    206:2792    207:2815   
 208:4068    209:3521    210:2902    211:1555    212:1977    213:1921   
 214:902     215:91      216:5215    217:1581    218:601     219:326    
 220:1265    221:549     222:326     223:463    

End of report


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