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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 27 Apr 2013 04:34:46 +1000 (EST)

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 () lists apnic net

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

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

Routing Table Report   04:00 +10GMT Sat 27 Apr, 2013

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

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

BGP routing table entries examined:                              452463
    Prefixes after maximum aggregation:                          184927
    Deaggregation factor:                                          2.45
    Unique aggregates announced to Internet:                     223134
Total ASes present in the Internet Routing Table:                 43963
    Prefixes per ASN:                                             10.29
Origin-only ASes present in the Internet Routing Table:           34555
Origin ASes announcing only one prefix:                           16096
Transit ASes present in the Internet Routing Table:                5809
Transit-only ASes present in the Internet Routing Table:            147
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 19037)                              22
Prefixes from unregistered ASNs in the Routing Table:               316
    Unregistered ASNs in the Routing Table:                         133
Number of 32-bit ASNs allocated by the RIRs:                       4742
Number of 32-bit ASNs visible in the Routing Table:                3599
Prefixes from 32-bit ASNs in the Routing Table:                   10189
Special use prefixes present in the Routing Table:                   22
Prefixes being announced from unallocated address space:            199
Number of addresses announced to Internet:                   2615429996
    Equivalent to 155 /8s, 228 /16s and 75 /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:               94.4
Total number of prefixes smaller than registry allocations:      159320

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

Prefixes being announced by APNIC Region ASes:                   108746
    Total APNIC prefixes after maximum aggregation:               33420
    APNIC Deaggregation factor:                                    3.25
Prefixes being announced from the APNIC address blocks:          109994
    Unique aggregates announced from the APNIC address blocks:    44571
APNIC Region origin ASes present in the Internet Routing Table:    4837
    APNIC Prefixes per ASN:                                       22.74
APNIC Region origin ASes announcing only one prefix:               1228
APNIC Region transit ASes present in the Internet Routing Table:    818
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         19
Number of APNIC region 32-bit ASNs visible in the Routing Table:    509
Number of APNIC addresses announced to Internet:              720942304
    Equivalent to 42 /8s, 248 /16s and 180 /24s
    Percentage of available APNIC address space announced:         84.3

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:                    158813
    Total ARIN prefixes after maximum aggregation:                79935
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           159458
    Unique aggregates announced from the ARIN address blocks:     72851
ARIN Region origin ASes present in the Internet Routing Table:    15671
    ARIN Prefixes per ASN:                                        10.18
ARIN Region origin ASes announcing only one prefix:                5971
ARIN Region transit ASes present in the Internet Routing Table:    1626
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:              1063168896
    Equivalent to 63 /8s, 94 /16s and 171 /24s
    Percentage of available ARIN address space announced:          56.2

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:                    116767
    Total RIPE prefixes after maximum aggregation:                59562
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           120320
    Unique aggregates announced from the RIPE address blocks:     77310
RIPE Region origin ASes present in the Internet Routing Table:    17150
    RIPE Prefixes per ASN:                                         7.02
RIPE Region origin ASes announcing only one prefix:                8143
RIPE Region transit ASes present in the Internet Routing Table:    2794
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2308
Number of RIPE addresses announced to Internet:               656946660
    Equivalent to 39 /8s, 40 /16s and 53 /24s
    Percentage of available RIPE address space announced:          95.5

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:                   47383
    Total LACNIC prefixes after maximum aggregation:               9451
    LACNIC Deaggregation factor:                                   5.01
Prefixes being announced from the LACNIC address blocks:          51423
    Unique aggregates announced from the LACNIC address blocks:   24391
LACNIC Region origin ASes present in the Internet Routing Table:   1912
    LACNIC Prefixes per ASN:                                      26.89
LACNIC Region origin ASes announcing only one prefix:               568
LACNIC Region transit ASes present in the Internet Routing Table:   354
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   758
Number of LACNIC addresses announced to Internet:             127623720
    Equivalent to 7 /8s, 155 /16s and 98 /24s
    Percentage of available LACNIC address space announced:        76.1

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-62463, 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:                  10481
    Total AfriNIC prefixes after maximum aggregation:              2518
    AfriNIC Deaggregation factor:                                  4.16
Prefixes being announced from the AfriNIC address blocks:         11069
    Unique aggregates announced from the AfriNIC address blocks:   3827
AfriNIC Region origin ASes present in the Internet Routing Table:   619
    AfriNIC Prefixes per ASN:                                     17.88
AfriNIC Region origin ASes announcing only one prefix:              186
AfriNIC Region transit ASes present in the Internet Routing Table:  130
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46315264
    Equivalent to 2 /8s, 194 /16s and 183 /24s
    Percentage of available AfriNIC address space announced:       46.0

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     2950      11558         922   Korea Telecom (KIX)
17974     2512        839          90   PT TELEKOMUNIKASI INDONESIA
 7545     1888        320         109   TPG Internet Pty Ltd
 4755     1739        392         198   TATA Communications formerly 
 9829     1504       1205          40   BSNL National Internet Backbo
 9583     1285         98         538   Sify Limited
 7552     1172       1064          12   Vietel Corporation
 4808     1117       2110         326   CNCGROUP IP network: China169
 9498     1088        310          73   BHARTI Airtel Ltd.
24560     1071        385         164   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     3033       3694          86   bellsouth.net, inc. 
 7029     2174       1265         212   Windstream Communications Inc
18566     2067        382         184   Covad Communications 
 1785     1989        677         124   PaeTec Communications, Inc.
22773     1970       2929         125   Cox Communications, Inc.
20115     1669       1610         613   Charter Communications 
 4323     1609       1139         398   Time Warner Telecom
30036     1342        298         652   Mediacom Communications Corp 
 7018     1314      10805         850   AT&T WorldNet Services
11492     1239        228         330   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     1802        544          16   Corbina telecom
 2118     1430         97          13   EUnet/RELCOM Autonomous Syste
34984     1149        235         206   BILISIM TELEKOM
12479      839        785          66   Uni2 Autonomous System
13188      834         99          70   Educational Network
20940      815        285         650   Akamai Technologies European 
31148      797         41          21   FreeNet ISP
 6830      775       2376         446   UPC Distribution Services
 8551      764        370          43   Bezeq International
58113      666         74         386   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
28573     2700       1468         102   NET Servicos de Comunicao S.A
10620     2383        413         215   TVCABLE BOGOTA 
 7303     1681       1154         214   Telecom Argentina Stet-France
 8151     1236       2692         395   UniNet S.A. de C.V. 
 6503     1065        435          68   AVANTEL, S.A. 
18881      906        780          19   Global Village Telecom 
27947      815         88          94   Telconet S.A
11830      716        364          14   Instituto Costarricense de El
 3816      696        306          85   Empresa Nacional de Telecomun
 7738      650       1306          35   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     1286         80           4   MOBITEL
24863      702        274          33   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      404        956           9   TEDATA
24835      274         80           8   RAYA Telecom - Egypt
 3741      262        906         220   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
12258      193         28          67   Vodacom Internet Company 
29975      191        667          21   Vodacom
33776      181         12          19   Starcomms Nigeria Limited

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     3033       3694          86   bellsouth.net, inc. 
 4766     2950      11558         922   Korea Telecom (KIX)
28573     2700       1468         102   NET Servicos de Comunicao S.A
17974     2512        839          90   PT TELEKOMUNIKASI INDONESIA
10620     2383        413         215   TVCABLE BOGOTA 
 7029     2174       1265         212   Windstream Communications Inc
18566     2067        382         184   Covad Communications 
 1785     1989        677         124   PaeTec Communications, Inc.
22773     1970       2929         125   Cox Communications, Inc.
 7545     1888        320         109   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
28573      2700        2598      NET Servicos de Comunicao S.A
17974      2512        2422      PT TELEKOMUNIKASI INDONESIA
10620      2383        2168      TVCABLE BOGOTA 
 4766      2950        2028      Korea Telecom (KIX)
 7029      2174        1962      Windstream Communications Inc
18566      2067        1883      Covad Communications 
 1785      1989        1865      PaeTec Communications, Inc.
22773      1970        1845      Cox Communications, Inc.
 8402      1802        1786      Corbina telecom
 7545      1888        1779      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
128.0.55.0/24        48571     SC efectRO SRL
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.61.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.62.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.63.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.72.0/21        23456     32-bit ASN transition

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

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

Network            Origin AS  Description
41.222.80.0/21       37110     Moztel LDA
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.
64.185.230.0/24      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        /8:16       /9:13      /10:29      /11:88      /12:249     
/13:486     /14:885     /15:1566    /16:12687   /17:6635    /18:11105   
/19:21997   /20:32039   /21:33962   /22:47079   /23:41918   /24:237699  
/25:1343    /26:1662    /27:857     /28:45      /29:66      /30:18      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2018          2067      Covad Communications 
 6389     1738          3033      bellsouth.net, inc. 
 7029     1611          2174      Windstream Communications Inc
 8402     1500          1802      Corbina telecom
22773     1280          1970      Cox Communications, Inc.
36998     1280          1286      MOBITEL
30036     1216          1342      Mediacom Communications Corp 
11492     1198          1239      Cable One 
 1785     1060          1989      PaeTec Communications, Inc.
 6983     1006          1133      ITC^Deltacom 

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

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

   1:781       2:757       3:3         4:15        5:876       6:5      
   8:550      12:1918     13:3        14:773      15:11       16:3      
  17:9        20:18       23:273      24:1763     27:1489     31:1249   
  32:43       33:2        34:5        36:44       37:1801     38:867    
  39:2        40:171      41:2767     42:186      44:6        46:1874   
  47:2        49:629      50:685      52:12       54:32       55:9      
  57:27       58:1139     59:588      60:308      61:1453     62:1032   
  63:2040     64:4314     65:2178     66:4312     67:2058     68:1118   
  69:3248     70:873      71:536      72:1956     74:2550     75:416    
  76:289      77:1112     78:1052     79:583      80:1242     81:984    
  82:618      83:569      84:523      85:1169     86:463      87:978    
  88:526      89:1807     90:280      91:5504     92:618      93:1730   
  94:1837     95:1542     96:521      97:343      98:1051     99:41     
 100:29      101:318     103:2509    105:520     106:143     107:209    
 108:517     109:1839    110:864     111:1046    112:503     113:785    
 114:699     115:1012    116:890     117:798     118:1058    119:1268   
 120:404     121:826     122:1757    123:1231    124:1334    125:1331   
 128:638     129:223     130:324     131:654     132:340     133:149    
 134:254     135:64      136:224     137:249     138:346     139:197    
 140:206     141:322     142:546     143:377     144:488     145:92     
 146:507     147:389     148:694     149:370     150:166     151:533    
 152:419     153:195     154:39      155:394     156:265     157:394    
 158:275     159:722     160:337     161:423     162:406     163:207    
 164:587     165:450     166:334     167:580     168:1032    169:133    
 170:1026    171:177     172:5       173:1603    174:589     175:462    
 176:1277    177:1856    178:1834    179:4       180:1412    181:409    
 182:1144    183:373     184:672     185:395     186:2295    187:1326   
 188:2047    189:1376    190:6164    192:6547    193:5838    194:4650   
 195:3492    196:1316    197:941     198:4391    199:5280    200:5899   
 201:2407    202:8882    203:8790    204:4518    205:2559    206:2843   
 207:2857    208:4053    209:3613    210:2953    211:1552    212:2043   
 213:1900    214:914     215:98      216:5199    217:1572    218:617    
 219:347     220:1273    221:554     222:317     223:443    

End of report


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