[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 6 18:34:11 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 07 Sep, 2013

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

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

BGP routing table entries examined:                              466753
    Prefixes after maximum aggregation:                          188207
    Deaggregation factor:                                          2.48
    Unique aggregates announced to Internet:                     231835
Total ASes present in the Internet Routing Table:                 44906
    Prefixes per ASN:                                             10.39
Origin-only ASes present in the Internet Routing Table:           35097
Origin ASes announcing only one prefix:                           16257
Transit ASes present in the Internet Routing Table:                5913
Transit-only ASes present in the Internet Routing Table:            165
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:              5649
    Unregistered ASNs in the Routing Table:                        1916
Number of 32-bit ASNs allocated by the RIRs:                       5006
Number of 32-bit ASNs visible in the Routing Table:                3896
Prefixes from 32-bit ASNs in the Routing Table:                   11954
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            362
Number of addresses announced to Internet:                   2641573844
    Equivalent to 157 /8s, 115 /16s and 55 /24s
    Percentage of available address space announced:               71.4
    Percentage of allocated address space announced:               71.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.0
Total number of prefixes smaller than registry allocations:      163579

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

Prefixes being announced by APNIC Region ASes:                   110477
    Total APNIC prefixes after maximum aggregation:               33521
    APNIC Deaggregation factor:                                    3.30
Prefixes being announced from the APNIC address blocks:          112415
    Unique aggregates announced from the APNIC address blocks:    46754
APNIC Region origin ASes present in the Internet Routing Table:    4866
    APNIC Prefixes per ASN:                                       23.10
APNIC Region origin ASes announcing only one prefix:               1223
APNIC Region transit ASes present in the Internet Routing Table:    829
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:    661
Number of APNIC addresses announced to Internet:              728202176
    Equivalent to 43 /8s, 103 /16s and 123 /24s
    Percentage of available APNIC address space announced:         85.1

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:                    161488
    Total ARIN prefixes after maximum aggregation:                81121
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           162089
    Unique aggregates announced from the ARIN address blocks:     75491
ARIN Region origin ASes present in the Internet Routing Table:    15867
    ARIN Prefixes per ASN:                                        10.22
ARIN Region origin ASes announcing only one prefix:                6025
ARIN Region transit ASes present in the Internet Routing Table:    1661
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:      20
Number of ARIN addresses announced to Internet:              1071412992
    Equivalent to 63 /8s, 220 /16s and 119 /24s
    Percentage of available ARIN address space announced:          56.7

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, 62464-63487, 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:                    119588
    Total RIPE prefixes after maximum aggregation:                61203
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           123427
    Unique aggregates announced from the RIPE address blocks:     79478
RIPE Region origin ASes present in the Internet Routing Table:    17412
    RIPE Prefixes per ASN:                                         7.09
RIPE Region origin ASes announcing only one prefix:                8246
RIPE Region transit ASes present in the Internet Routing Table:    2819
Average RIPE Region AS path length visible:                         5.2
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2390
Number of RIPE addresses announced to Internet:               657143780
    Equivalent to 39 /8s, 43 /16s and 55 /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:                   51499
    Total LACNIC prefixes after maximum aggregation:               9762
    LACNIC Deaggregation factor:                                   5.28
Prefixes being announced from the LACNIC address blocks:          56191
    Unique aggregates announced from the LACNIC address blocks:   25825
LACNIC Region origin ASes present in the Internet Routing Table:   2011
    LACNIC Prefixes per ASN:                                      27.94
LACNIC Region origin ASes announcing only one prefix:               566
LACNIC Region transit ASes present in the Internet Routing Table:   379
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:   819
Number of LACNIC addresses announced to Internet:             137498160
    Equivalent to 8 /8s, 50 /16s and 14 /24s
    Percentage of available LACNIC address space announced:        82.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 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:                  11655
    Total AfriNIC prefixes after maximum aggregation:              2549
    AfriNIC Deaggregation factor:                                  4.57
Prefixes being announced from the AfriNIC address blocks:         12269
    Unique aggregates announced from the AfriNIC address blocks:   3952
AfriNIC Region origin ASes present in the Internet Routing Table:   652
    AfriNIC Prefixes per ASN:                                     18.82
AfriNIC Region origin ASes announcing only one prefix:              197
AfriNIC Region transit ASes present in the Internet Routing Table:  138
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46563072
    Equivalent to 2 /8s, 198 /16s and 127 /24s
    Percentage of available AfriNIC address space announced:       46.3

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     2919      11561         924   Korea Telecom (KIX)
17974     2667        903          91   PT TELEKOMUNIKASI INDONESIA
 7545     2068        321         112   TPG Internet Pty Ltd
 4755     1769        390         190   TATA Communications formerly 
 9829     1547       1237          46   BSNL National Internet Backbo
 9583     1229         92         508   Sify Limited
 9498     1184        309          70   BHARTI Airtel Ltd.
 4808     1160       2129         342   CNCGROUP IP network: China169
 7552     1139       1080          13   Vietel Corporation
24560     1090        394         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     3068       3689          62   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
22773     2041       2933         125   Cox Communications, Inc.
 1785     2013        679         125   PaeTec Communications, Inc.
20115     1675       1645         630   Charter Communications 
 4323     1618       1119         410   Time Warner Telecom
  701     1520      11119         796   UUNET Technologies, Inc. 
30036     1344        301         643   Mediacom Communications Corp 
 7018     1313      11277         827   AT&T WorldNet Services
11492     1220        218         366   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     1724        544          16   Corbina telecom
34984     1314        244         221   BILISIM TELEKOM
 2118     1179         97          13   EUnet/RELCOM Autonomous Syste
20940      987        355         766   Akamai Technologies European 
31148      982         43          18   FreeNet ISP
 6830      895       2367         427   UPC Distribution Services
13188      847         99          72   Educational Network
 8551      752        370          41   Bezeq International
12479      687        797          53   Uni2 Autonomous System
58113      541         55         339   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     3232       1719          96   NET Servicos de Comunicao S.A
10620     2547        416         259   TVCABLE BOGOTA 
 7303     1693       1118         223   Telecom Argentina Stet-France
18881     1430        844          20   Global Village Telecom 
 8151     1282       2775         386   UniNet S.A. de C.V. 
14522      987        150           9   SatNet S.A. 
11830      926        364          15   Instituto Costarricense de El
27947      838         94          91   Telconet S.A
 6503      812        434          64   AVANTEL, S.A. 
 7738      764       1498          36   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     1861        112           5   MOBITEL
24863      869        274          30   LINKdotNET AS number
 6713      543        633          26   Itissalat Al-MAGHRIB
 8452      435        956           9   TEDATA
24835      291         80           8   RAYA Telecom - Egypt
 3741      257        921         216   The Internet Solution 
36992      222        501          28   Etisalat MISR
15706      221         32           6   Sudatel Internet Exchange Aut
29571      220         17          12   Ci Telecom Autonomous system 
12258      193         28          71   Vodacom Internet Company 

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
28573     3232       1719          96   NET Servicos de Comunicao S.A
 6389     3068       3689          62   bellsouth.net, inc. 
 4766     2919      11561         924   Korea Telecom (KIX)
17974     2667        903          91   PT TELEKOMUNIKASI INDONESIA
10620     2547        416         259   TVCABLE BOGOTA 
 7545     2068        321         112   TPG Internet Pty Ltd
18566     2065        382         184   Covad Communications 
22773     2041       2933         125   Cox Communications, Inc.
 1785     2013        679         125   PaeTec Communications, Inc.
36998     1861        112           5   MOBITEL

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

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

  ASN   No of nets  Net Savings Description
 6389      3068        3006      bellsouth.net, inc. 
17974      2667        2576      PT TELEKOMUNIKASI INDONESIA
10620      2547        2288      TVCABLE BOGOTA 
 4766      2919        1995      Korea Telecom (KIX)
 7545      2068        1956      TPG Internet Pty Ltd
22773      2041        1916      Cox Communications, Inc.
 1785      2013        1888      PaeTec Communications, Inc.
18566      2065        1881      Covad Communications 
36998      1861        1856      MOBITEL
 8402      1724        1708      Corbina telecom

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
62719   UNALLOCATED  12.27.130.0/24        4323       Time Warner Telecom
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 

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

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

Prefix             Origin AS  Description
100.100.0.0/24        4847     China Networks Inter-Exchange

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

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

Network            Origin AS  Description
23.90.128.0/18       27418     OUTOFWALL INC.
23.90.192.0/18       36086     Broad Communications Technolo
23.91.0.0/19         40676     Psychz Networks 
23.91.32.0/19        36315     Servpac Inc. 
23.92.16.0/21         8001     Net Access Corporation 
23.92.24.0/22         6939     Hurricane Electric 
23.92.48.0/20        29761     OC3 Networks & Web Solutions,
23.92.64.0/24        54540     Incero LLC
23.92.65.0/24        54540     Incero LLC
23.92.66.0/24        54540     Incero LLC

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       /9:11      /10:30      /11:93      /12:250     
/13:479     /14:911     /15:1612    /16:12783   /17:6696    /18:11128   
/19:22799   /20:32381   /21:35037   /22:49361   /23:43119   /24:247605  
/25:827     /26:990     /27:467     /28:48      /29:77      /30:19      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
36998     1826          1861      MOBITEL
 6389     1713          3068      bellsouth.net, inc. 
 8402     1447          1724      Corbina telecom
22773     1327          2041      Cox Communications, Inc.
30036     1207          1344      Mediacom Communications Corp 
11492     1181          1220      Cable One 
 1785     1085          2013      PaeTec Communications, Inc.
 6983     1025          1152      ITC^Deltacom 
 7011      933          1176      Citizens Utilities 

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

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

   1:809       2:844       3:3         4:19        5:940       6:19     
   8:614      12:1894     13:2        14:867      15:11       16:3      
  17:11       18:19       20:18       23:377      24:1744     27:1565   
  31:1436     32:45       33:2        34:5        36:71       37:1863   
  38:898      39:4        40:179      41:3294     42:255      44:9      
  46:1972     47:4        49:665      50:840      52:12       54:37     
  55:7        57:26       58:1168     59:621      60:336      61:1415   
  62:1225     63:1990     64:4558     65:2311     66:4166     67:2064   
  68:1090     69:3302     70:863      71:496      72:2007     74:2549   
  75:329      76:304      77:1163     78:1056     79:625      80:1318   
  81:1024     82:646      83:582      84:581      85:1264     86:483    
  87:1049     88:556      89:1833     90:158      91:5623     92:604    
  93:1675     94:2027     95:1569     96:509      97:339      98:1041   
  99:44      100:29      101:598     103:3292    105:519     106:142    
 107:207     108:501     109:1878    110:963     111:1129    112:568    
 113:792     114:732     115:987     116:977     117:818     118:1124   
 119:1287    120:366     121:740     122:1872    123:1249    124:1387   
 125:1422    128:614     129:221     130:318     131:671     132:351    
 133:161     134:287     135:67      136:272     137:267     138:348    
 139:180     140:196     141:325     142:554     143:387     144:493    
 145:100     146:529     147:490     148:691     149:356     150:152    
 151:581     152:416     153:195     154:30      155:480     156:274    
 157:409     158:284     159:754     160:350     161:458     162:629    
 163:226     164:626     165:561     166:256     167:606     168:1033   
 169:125     170:1083    171:194     172:25      173:1600    174:520    
 175:499     176:1190    177:2148    178:1907    179:113     180:1528   
 181:706     182:1264    183:436     184:633     185:809     186:2475   
 187:1448    188:1896    189:1308    190:7263    192:6915    193:5705   
 194:4650    195:3573    196:1340    197:1011    198:4664    199:5445   
 200:6059    201:2608    202:8941    203:8920    204:4521    205:2619   
 206:2835    207:2901    208:4003    209:3623    210:2945    211:1560   
 212:2265    213:2056    214:919     215:100     216:5287    217:1653   
 218:623     219:312     220:1277    221:557     222:326     223:499    


End of report



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