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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 13 Apr 2013 04:34:15 +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 13 Apr, 2013

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

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

BGP routing table entries examined:                              450537
    Prefixes after maximum aggregation:                          184360
    Deaggregation factor:                                          2.44
    Unique aggregates announced to Internet:                     222129
Total ASes present in the Internet Routing Table:                 43823
    Prefixes per ASN:                                             10.28
Origin-only ASes present in the Internet Routing Table:           34458
Origin ASes announcing only one prefix:                           16077
Transit ASes present in the Internet Routing Table:                5796
Transit-only ASes present in the Internet Routing Table:            140
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 19037)                              22
Prefixes from unregistered ASNs in the Routing Table:               375
    Unregistered ASNs in the Routing Table:                         138
Number of 32-bit ASNs allocated by the RIRs:                       4720
Number of 32-bit ASNs visible in the Routing Table:                3569
Prefixes from 32-bit ASNs in the Routing Table:                   10153
Special use prefixes present in the Routing Table:                   19
Prefixes being announced from unallocated address space:            212
Number of addresses announced to Internet:                   2612870220
    Equivalent to 155 /8s, 189 /16s and 60 /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:      159211

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

Prefixes being announced by APNIC Region ASes:                   108096
    Total APNIC prefixes after maximum aggregation:               33356
    APNIC Deaggregation factor:                                    3.24
Prefixes being announced from the APNIC address blocks:          109305
    Unique aggregates announced from the APNIC address blocks:    44363
APNIC Region origin ASes present in the Internet Routing Table:    4819
    APNIC Prefixes per ASN:                                       22.68
APNIC Region origin ASes announcing only one prefix:               1225
APNIC Region transit ASes present in the Internet Routing Table:    813
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         21
Number of APNIC region 32-bit ASNs visible in the Routing Table:    493
Number of APNIC addresses announced to Internet:              720693952
    Equivalent to 42 /8s, 244 /16s and 234 /24s
    Percentage of available APNIC address space announced:         84.2

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:                    157854
    Total ARIN prefixes after maximum aggregation:                79682
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           158545
    Unique aggregates announced from the ARIN address blocks:     72575
ARIN Region origin ASes present in the Internet Routing Table:    15633
    ARIN Prefixes per ASN:                                        10.14
ARIN Region origin ASes announcing only one prefix:                5945
ARIN Region transit ASes present in the Internet Routing Table:    1614
Average ARIN Region AS path length visible:                         4.2
    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:              1062493824
    Equivalent to 63 /8s, 84 /16s and 94 /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:                    116555
    Total RIPE prefixes after maximum aggregation:                59393
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           120091
    Unique aggregates announced from the RIPE address blocks:     77021
RIPE Region origin ASes present in the Internet Routing Table:    17131
    RIPE Prefixes per ASN:                                         7.01
RIPE Region origin ASes announcing only one prefix:                8159
RIPE Region transit ASes present in the Internet Routing Table:    2805
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:    2294
Number of RIPE addresses announced to Internet:               656281316
    Equivalent to 39 /8s, 30 /16s and 14 /24s
    Percentage of available RIPE address space announced:          95.4

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:                   47674
    Total LACNIC prefixes after maximum aggregation:               9391
    LACNIC Deaggregation factor:                                   5.08
Prefixes being announced from the LACNIC address blocks:          51709
    Unique aggregates announced from the LACNIC address blocks:   24114
LACNIC Region origin ASes present in the Internet Routing Table:   1889
    LACNIC Prefixes per ASN:                                      27.37
LACNIC Region origin ASes announcing only one prefix:               561
LACNIC Region transit ASes present in the Internet Routing Table:   351
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   757
Number of LACNIC addresses announced to Internet:             126775336
    Equivalent to 7 /8s, 142 /16s and 112 /24s
    Percentage of available LACNIC address space announced:        75.6

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:                  10065
    Total AfriNIC prefixes after maximum aggregation:              2490
    AfriNIC Deaggregation factor:                                  4.04
Prefixes being announced from the AfriNIC address blocks:         10675
    Unique aggregates announced from the AfriNIC address blocks:   3859
AfriNIC Region origin ASes present in the Internet Routing Table:   614
    AfriNIC Prefixes per ASN:                                     17.39
AfriNIC Region origin ASes announcing only one prefix:              187
AfriNIC Region transit ASes present in the Internet Routing Table:  127
Average AfriNIC Region AS path length visible:                      4.8
    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:             46187264
    Equivalent to 2 /8s, 192 /16s and 195 /24s
    Percentage of available AfriNIC address space announced:       45.9

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     2957      11557         923   Korea Telecom (KIX)
17974     2510        840          86   PT TELEKOMUNIKASI INDONESIA
 7545     1884        320         109   TPG Internet Pty Ltd
 4755     1734        392         198   TATA Communications formerly 
 9829     1511       1205          40   BSNL National Internet Backbo
 9583     1283         98         538   Sify Limited
 7552     1171       1066          12   Vietel Corporation
 4808     1121       2109         325   CNCGROUP IP network: China169
 9498     1070        310          73   BHARTI Airtel Ltd.
24560     1066        385         163   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     3037       3694          87   bellsouth.net, inc. 
 7029     2174       1265         212   Windstream Communications Inc
18566     2068        382         184   Covad Communications 
22773     2013       2929         125   Cox Communications, Inc.
 1785     1974        677         122   PaeTec Communications, Inc.
20115     1669       1611         611   Charter Communications 
 4323     1608       1139         397   Time Warner Telecom
30036     1340        296         658   Mediacom Communications Corp 
 7018     1316      10807         856   AT&T WorldNet Services
11492     1218        224         333   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     1840        544          16   Corbina telecom
 2118     1430         97          13   EUnet/RELCOM Autonomous Syste
34984     1145        234         207   BILISIM TELEKOM
12479      844        786          66   Uni2 Autonomous System
13188      837         99          33   Educational Network
20940      822        288         652   Akamai Technologies European 
31148      793         41          21   FreeNet ISP
 6830      752       2318         442   UPC Distribution Services
 8551      734        368          56   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     2601       1433          98   NET Servicos de Comunicao S.A
10620     2361        409         223   TVCABLE BOGOTA 
 7303     1674       1153         211   Telecom Argentina Stet-France
 8151     1228       2684         404   UniNet S.A. de C.V. 
 6503     1151        435          68   AVANTEL, S.A. 
14754     1119        153          37   Telgua S. A. 
18881      850        716          18   Global Village Telecom 
27947      809         88          97   Telconet S.A
11830      725        364          14   Instituto Costarricense de El
 3816      695        306          85   Empresa Nacional de Telecomun

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     1137         80           4   MOBITEL
24863      691        274          33   LINKdotNET AS number
 6713      543        617          25   Itissalat Al-MAGHRIB
 8452      353        956           9   TEDATA
24835      275         80           8   RAYA Telecom - Egypt
 3741      262        906         220   The Internet Solution 
12258      193         28          67   Vodacom Internet Company 
29975      191        667          21   Vodacom
16637      184        696          90   MTN Network Solutions
33776      167         11          18   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     3037       3694          87   bellsouth.net, inc. 
 4766     2957      11557         923   Korea Telecom (KIX)
28573     2601       1433          98   NET Servicos de Comunicao S.A
17974     2510        840          86   PT TELEKOMUNIKASI INDONESIA
10620     2361        409         223   TVCABLE BOGOTA 
 7029     2174       1265         212   Windstream Communications Inc
18566     2068        382         184   Covad Communications 
22773     2013       2929         125   Cox Communications, Inc.
 1785     1974        677         122   PaeTec Communications, Inc.
 7545     1884        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      2601        2503      NET Servicos de Comunicao S.A
17974      2510        2424      PT TELEKOMUNIKASI INDONESIA
10620      2361        2138      TVCABLE BOGOTA 
 4766      2957        2034      Korea Telecom (KIX)
 7029      2174        1962      Windstream Communications Inc
22773      2013        1888      Cox Communications, Inc.
18566      2068        1884      Covad Communications 
 1785      1974        1852      PaeTec Communications, Inc.
 8402      1840        1824      Corbina telecom
 7545      1884        1775      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
128.0.56.0/24        60996     Visionware SRL
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
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

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      /12:248     
/13:485     /14:884     /15:1558    /16:12677   /17:6608    /18:10914   
/19:21813   /20:31911   /21:33781   /22:46684   /23:41774   /24:236885  
/25:1390    /26:1771    /27:862     /28:45      /29:67      /30:15      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2019          2068      Covad Communications 
 6389     1742          3037      bellsouth.net, inc. 
 7029     1613          2174      Windstream Communications Inc
 8402     1537          1840      Corbina telecom
22773     1318          2013      Cox Communications, Inc.
30036     1217          1340      Mediacom Communications Corp 
11492     1179          1218      Cable One 
36998     1131          1137      MOBITEL
 1785     1047          1974      PaeTec Communications, Inc.
 6983     1006          1134      ITC^Deltacom 

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

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

   1:767       2:796       3:3         4:15        5:861       6:4      
   8:542      12:1920     13:3        14:769      15:11       16:3      
  17:9        20:19       23:257      24:1776     27:1451     31:1207   
  32:42       33:2        34:5        36:43       37:1798     38:861    
  39:2        40:169      41:2626     42:185      44:6        46:1789   
  47:2        49:619      50:676      52:12       54:30       55:9      
  57:27       58:1108     59:588      60:305      61:1446     62:992    
  63:2033     64:4287     65:2183     66:4294     67:2066     68:1119   
  69:3252     70:876      71:529      72:1917     74:2565     75:411    
  76:294      77:1096     78:1040     79:590      80:1235     81:976    
  82:613      83:579      84:589      85:1165     86:471      87:964    
  88:527      89:1806     90:281      91:5489     92:614      93:1718   
  94:1871     95:1610     96:503      97:340      98:1050     99:41     
 100:29      101:311     103:2412    105:488     106:135     107:207    
 108:515     109:1783    110:851     111:1046    112:501     113:783    
 114:689     115:1014    116:876     117:778     118:1016    119:1249   
 120:389     121:817     122:1730    123:1176    124:1332    125:1328   
 128:635     129:226     130:332     131:654     132:336     133:148    
 134:258     135:62      136:222     137:248     138:344     139:185    
 140:199     141:317     142:542     143:372     144:485     145:93     
 146:510     147:384     148:697     149:366     150:163     151:528    
 152:419     153:194     154:44      155:395     156:259     157:394    
 158:267     159:717     160:337     161:424     162:379     163:202    
 164:575     165:450     166:336     167:578     168:1026    169:133    
 170:1025    171:174     172:5       173:1609    174:580     175:445    
 176:1233    177:1842    178:1808    179:2       180:1394    181:378    
 182:1130    183:374     184:662     185:354     186:2449    187:1255   
 188:2007    189:1361    190:6606    192:6488    193:5833    194:4646   
 195:3643    196:1333    197:826     198:4322    199:5280    200:6034   
 201:2373    202:8860    203:8755    204:4518    205:2553    206:2822   
 207:2833    208:4065    209:3561    210:2928    211:1565    212:2025   
 213:1917    214:943     215:98      216:5212    217:1575    218:624    
 219:347     220:1270    221:547     222:314     223:443    

End of report


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