[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 22 18:33:31 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 Mar, 2013

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

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

BGP routing table entries examined:                              446728
    Prefixes after maximum aggregation:                          183292
    Deaggregation factor:                                          2.44
    Unique aggregates announced to Internet:                     220037
Total ASes present in the Internet Routing Table:                 43605
    Prefixes per ASN:                                             10.24
Origin-only ASes present in the Internet Routing Table:           34346
Origin ASes announcing only one prefix:                           16005
Transit ASes present in the Internet Routing Table:                5773
Transit-only ASes present in the Internet Routing Table:            138
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               380
    Unregistered ASNs in the Routing Table:                         135
Number of 32-bit ASNs allocated by the RIRs:                       4642
Number of 32-bit ASNs visible in the Routing Table:                3486
Prefixes from 32-bit ASNs in the Routing Table:                   10051
Special use prefixes present in the Routing Table:                   16
Prefixes being announced from unallocated address space:            190
Number of addresses announced to Internet:                   2623636172
    Equivalent to 156 /8s, 97 /16s and 130 /24s
    Percentage of available address space announced:               70.9
    Percentage of allocated address space announced:               70.9
    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:      157705

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

Prefixes being announced by APNIC Region ASes:                   107650
    Total APNIC prefixes after maximum aggregation:               33185
    APNIC Deaggregation factor:                                    3.24
Prefixes being announced from the APNIC address blocks:          108812
    Unique aggregates announced from the APNIC address blocks:    44235
APNIC Region origin ASes present in the Internet Routing Table:    4823
    APNIC Prefixes per ASN:                                       22.56
APNIC Region origin ASes announcing only one prefix:               1232
APNIC Region transit ASes present in the Internet Routing Table:    818
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    471
Number of APNIC addresses announced to Internet:              719866944
    Equivalent to 42 /8s, 232 /16s and 76 /24s
    Percentage of available APNIC address space announced:         84.1

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:                    157052
    Total ARIN prefixes after maximum aggregation:                79231
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           157702
    Unique aggregates announced from the ARIN address blocks:     72021
ARIN Region origin ASes present in the Internet Routing Table:    15558
    ARIN Prefixes per ASN:                                        10.14
ARIN Region origin ASes announcing only one prefix:                5892
ARIN Region transit ASes present in the Internet Routing Table:    1613
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:              1078545024
    Equivalent to 64 /8s, 73 /16s and 74 /24s
    Percentage of available ARIN address space announced:          57.1

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:                    114247
    Total RIPE prefixes after maximum aggregation:                59056
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           117881
    Unique aggregates announced from the RIPE address blocks:     76026
RIPE Region origin ASes present in the Internet Routing Table:    17109
    RIPE Prefixes per ASN:                                         6.89
RIPE Region origin ASes announcing only one prefix:                8154
RIPE Region transit ASes present in the Internet Routing Table:    2789
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:    2244
Number of RIPE addresses announced to Internet:               654647012
    Equivalent to 39 /8s, 5 /16s and 30 /24s
    Percentage of available RIPE address space announced:          95.2

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:                   47537
    Total LACNIC prefixes after maximum aggregation:               9355
    LACNIC Deaggregation factor:                                   5.08
Prefixes being announced from the LACNIC address blocks:          51460
    Unique aggregates announced from the LACNIC address blocks:   23836
LACNIC Region origin ASes present in the Internet Routing Table:   1868
    LACNIC Prefixes per ASN:                                      27.55
LACNIC Region origin ASes announcing only one prefix:               548
LACNIC Region transit ASes present in the Internet Routing Table:   346
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:   747
Number of LACNIC addresses announced to Internet:             124820520
    Equivalent to 7 /8s, 112 /16s and 156 /24s
    Percentage of available LACNIC address space announced:        74.4

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:                  10057
    Total AfriNIC prefixes after maximum aggregation:              2415
    AfriNIC Deaggregation factor:                                  4.16
Prefixes being announced from the AfriNIC address blocks:         10683
    Unique aggregates announced from the AfriNIC address blocks:   3745
AfriNIC Region origin ASes present in the Internet Routing Table:   594
    AfriNIC Prefixes per ASN:                                     17.98
AfriNIC Region origin ASes announcing only one prefix:              179
AfriNIC Region transit ASes present in the Internet Routing Table:  124
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:    6
Number of AfriNIC addresses announced to Internet:             45373696
    Equivalent to 2 /8s, 180 /16s and 89 /24s
    Percentage of available AfriNIC address space announced:       45.1

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     2504        840          86   PT TELEKOMUNIKASI INDONESIA
 7545     1845        301          89   TPG Internet Pty Ltd
 4755     1726        392         197   TATA Communications formerly 
 9829     1464       1173          43   BSNL National Internet Backbo
 9583     1279         97         525   Sify Limited
 7552     1158       1062          11   Vietel Corporation
 4808     1115       2056         320   CNCGROUP IP network: China169
 9498     1069        310          74   BHARTI Airtel Ltd.
24560     1060        385         165   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          87   bellsouth.net, inc. 
 7029     2216       1266         213   Windstream Communications Inc
18566     2080        382         185   Covad Communications 
22773     1993       2929         125   Cox Communications, Inc.
 1785     1967        677         125   PaeTec Communications, Inc.
20115     1683       1613         620   Charter Communications 
 4323     1613       1139         401   Time Warner Telecom
30036     1320        291         678   Mediacom Communications Corp 
 7018     1313      10810         849   AT&T WorldNet Services
11492     1210        222         329   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     1832        544          16   Corbina telecom
 2118     1116         97          13   EUnet/RELCOM Autonomous Syste
34984     1108        234         206   BILISIM TELEKOM
12479      841        786          66   Uni2 Autonomous System
13188      836         99          36   Educational Network
20940      799        278         635   Akamai Technologies European 
31148      786         41          19   FreeNet ISP
 6830      714       2314         435   UPC Distribution Services
 8551      714        370          43   Bezeq International
58113      664         73         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     2468       1338          90   NET Servicos de Comunicao S.A
10620     2362        407         238   TVCABLE BOGOTA 
 7303     1673       1148         209   Telecom Argentina Stet-France
 8151     1357       2680         401   UniNet S.A. de C.V. 
 6503     1176        435          68   AVANTEL, S.A. 
14754      942        128          85   Telgua S. A. 
18881      834        716          18   Global Village Telecom 
27947      795         87          96   Telconet S.A
11830      726        364          14   Instituto Costarricense de El
 3816      692        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     1286         80           4   MOBITEL
24863      732        274          34   LINKdotNET AS number
 6713      535        615          23   Itissalat Al-MAGHRIB
 8452      345        958          13   TEDATA
24835      342         80           8   RAYA Telecom - Egypt
 3741      262        906         220   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        698          88   MTN Network Solutions

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

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3033       3694          87   bellsouth.net, inc. 
 4766     2950      11558         922   Korea Telecom (KIX)
17974     2504        840          86   PT TELEKOMUNIKASI INDONESIA
28573     2468       1338          90   NET Servicos de Comunicao S.A
10620     2362        407         238   TVCABLE BOGOTA 
 7029     2216       1266         213   Windstream Communications Inc
18566     2080        382         185   Covad Communications 
22773     1993       2929         125   Cox Communications, Inc.
 1785     1967        677         125   PaeTec Communications, Inc.
 7545     1845        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      2504        2418      PT TELEKOMUNIKASI INDONESIA
28573      2468        2378      NET Servicos de Comunicao S.A
10620      2362        2124      TVCABLE BOGOTA 
 4766      2950        2028      Korea Telecom (KIX)
 7029      2216        2003      Windstream Communications Inc
18566      2080        1895      Covad Communications 
22773      1993        1868      Cox Communications, Inc.
 1785      1967        1842      PaeTec Communications, Inc.
 8402      1832        1816      Corbina telecom
 7545      1845        1756      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
128.0.72.0/21        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
128.0.128.0/20       29285     AMT closed joint-stock compan
128.0.144.0/22       59675     mywire Datentechnik GmbH

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     /14:872     /15:1562    /16:12654   /17:6593    /18:10867   
/19:21699   /20:31663   /21:33513   /22:46051   /23:41513   /24:234663  
/25:1364    /26:1675    /27:864     /28:182     /29:78      /30:18      
/31:0       /32:20      

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

  ASN   No of nets  Total ann.   Description
18566     2030          2080      Covad Communications 
 6389     1743          3033      bellsouth.net, inc. 
 7029     1614          2216      Windstream Communications Inc
 8402     1547          1832      Corbina telecom
22773     1304          1993      Cox Communications, Inc.
36998     1280          1286      MOBITEL
30036     1203          1320      Mediacom Communications Corp 
11492     1172          1210      Cable One 
 1785     1043          1967      PaeTec Communications, Inc.
 7011      942          1187      Citizens Utilities 

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

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

   1:728       2:777       3:3         4:13        5:834       6:3      
   8:511      12:1936     13:3        14:764      15:11       16:3      
  17:8        20:19       23:246      24:1802     27:1470     31:1176   
  32:44       33:2        34:5        36:43       37:1447     38:857    
  39:2        40:159      41:2657     42:183      44:6        46:1743   
  47:2        49:614      50:668      52:12       54:28       55:11     
  57:27       58:1104     59:600      60:304      61:1449     62:1017   
  63:2038     64:4290     65:2175     66:4282     67:2055     68:1118   
  69:3268     70:871      71:527      72:1898     74:2548     75:401    
  76:293      77:1084     78:1017     79:577      80:1229     81:973    
  82:613      83:557      84:563      85:1149     86:466      87:946    
  88:380      89:1767     90:262      91:5450     92:602      93:1702   
  94:1858     95:1552     96:499      97:336      98:1051     99:41     
 100:29      101:312     103:2312    105:517     106:133     107:207    
 108:517     109:1815    110:856     111:1040    112:499     113:764    
 114:684     115:1011    116:867     117:808     118:1007    119:1258   
 120:378     121:825     122:1740    123:1191    124:1323    125:1316   
 128:555     129:221     130:320     131:652     132:332     133:143    
 134:257     135:60      136:221     137:242     138:343     139:181    
 140:199     141:320     142:535     143:368     144:485     145:90     
 146:522     147:364     148:701     149:357     150:158     151:476    
 152:415     153:194     154:34      155:384     156:251     157:392    
 158:268     159:709     160:334     161:423     162:376     163:203    
 164:579     165:452     166:376     167:574     168:1018    169:131    
 170:1020    171:169     172:5       173:1580    174:583     175:431    
 176:1143    177:1826    178:1974    179:1       180:1380    181:292    
 182:1224    183:350     184:660     185:303     186:2359    187:1235   
 188:1906    189:1401    190:6632    192:6421    193:5677    194:4512   
 195:3464    196:1260    197:871     198:4244    199:5266    200:6034   
 201:2371    202:8903    203:8772    204:4488    205:2552    206:2785   
 207:2825    208:4057    209:3536    210:2916    211:1566    212:2007   
 213:1959    214:916     215:95      216:5194    217:1565    218:604    
 219:350     220:1269    221:547     222:318     223:492    

End of report



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