[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 15 18:33:34 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 16 Mar, 2013

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

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

BGP routing table entries examined:                              446141
    Prefixes after maximum aggregation:                          183411
    Deaggregation factor:                                          2.43
    Unique aggregates announced to Internet:                     219000
Total ASes present in the Internet Routing Table:                 43592
    Prefixes per ASN:                                             10.23
Origin-only ASes present in the Internet Routing Table:           34340
Origin ASes announcing only one prefix:                           16000
Transit ASes present in the Internet Routing Table:                5778
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:               365
    Unregistered ASNs in the Routing Table:                         132
Number of 32-bit ASNs allocated by the RIRs:                       4617
Number of 32-bit ASNs visible in the Routing Table:                3474
Prefixes from 32-bit ASNs in the Routing Table:                    9765
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            193
Number of addresses announced to Internet:                   2622922540
    Equivalent to 156 /8s, 86 /16s and 159 /24s
    Percentage of available address space announced:               70.8
    Percentage of allocated address space announced:               70.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.3
Total number of prefixes smaller than registry allocations:      157616

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

Prefixes being announced by APNIC Region ASes:                   107214
    Total APNIC prefixes after maximum aggregation:               33202
    APNIC Deaggregation factor:                                    3.23
Prefixes being announced from the APNIC address blocks:          108369
    Unique aggregates announced from the APNIC address blocks:    44091
APNIC Region origin ASes present in the Internet Routing Table:    4822
    APNIC Prefixes per ASN:                                       22.47
APNIC Region origin ASes announcing only one prefix:               1236
APNIC Region transit ASes present in the Internet Routing Table:    813
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         24
Number of APNIC region 32-bit ASNs visible in the Routing Table:    463
Number of APNIC addresses announced to Internet:              719165984
    Equivalent to 42 /8s, 221 /16s and 154 /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:                    156902
    Total ARIN prefixes after maximum aggregation:                79295
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           157573
    Unique aggregates announced from the ARIN address blocks:     71631
ARIN Region origin ASes present in the Internet Routing Table:    15548
    ARIN Prefixes per ASN:                                        10.13
ARIN Region origin ASes announcing only one prefix:                5877
ARIN Region transit ASes present in the Internet Routing Table:    1605
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:              1078444672
    Equivalent to 64 /8s, 71 /16s and 194 /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:                    114320
    Total RIPE prefixes after maximum aggregation:                59078
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           117687
    Unique aggregates announced from the RIPE address blocks:     75598
RIPE Region origin ASes present in the Internet Routing Table:    17108
    RIPE Prefixes per ASN:                                         6.88
RIPE Region origin ASes announcing only one prefix:                8160
RIPE Region transit ASes present in the Internet Routing Table:    2797
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2235
Number of RIPE addresses announced to Internet:               654497124
    Equivalent to 39 /8s, 2 /16s and 213 /24s
    Percentage of available RIPE address space announced:          95.1

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:                   47191
    Total LACNIC prefixes after maximum aggregation:               9353
    LACNIC Deaggregation factor:                                   5.05
Prefixes being announced from the LACNIC address blocks:          51088
    Unique aggregates announced from the LACNIC address blocks:   23778
LACNIC Region origin ASes present in the Internet Routing Table:   1867
    LACNIC Prefixes per ASN:                                      27.36
LACNIC Region origin ASes announcing only one prefix:               546
LACNIC Region transit ASes present in the Internet Routing Table:   346
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   751
Number of LACNIC addresses announced to Internet:             124810280
    Equivalent to 7 /8s, 112 /16s and 116 /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:                  10622
    Total AfriNIC prefixes after maximum aggregation:              2433
    AfriNIC Deaggregation factor:                                  4.37
Prefixes being announced from the AfriNIC address blocks:         11231
    Unique aggregates announced from the AfriNIC address blocks:   3727
AfriNIC Region origin ASes present in the Internet Routing Table:   606
    AfriNIC Prefixes per ASN:                                     18.53
AfriNIC Region origin ASes announcing only one prefix:              181
AfriNIC Region transit ASes present in the Internet Routing Table:  130
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:             45651456
    Equivalent to 2 /8s, 184 /16s and 150 /24s
    Percentage of available AfriNIC address space announced:       45.4

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     2925      11558         922   Korea Telecom (KIX)
17974     2504        840          86   PT TELEKOMUNIKASI INDONESIA
 7545     1833        301          89   TPG Internet Pty Ltd
 4755     1719        392         196   TATA Communications formerly 
 9829     1450       1157          42   BSNL National Internet Backbo
 9583     1287         98         535   Sify Limited
 7552     1161       1070          12   Vietel Corporation
 4808     1116       2054         321   CNCGROUP IP network: China169
 9498     1067        310          75   BHARTI Airtel Ltd.
24560     1058        385         161   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     3042       3695          94   bellsouth.net, inc. 
 7029     2229       1266         215   Windstream Communications Inc
18566     2081        382         185   Covad Communications 
22773     1995       2929         125   Cox Communications, Inc.
 1785     1959        677         123   PaeTec Communications, Inc.
20115     1681       1611         623   Charter Communications 
 4323     1613       1139         401   Time Warner Telecom
30036     1334        293         690   Mediacom Communications Corp 
 7018     1306      10809         852   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     1869        544          16   Corbina telecom
 2118     1116         97          13   EUnet/RELCOM Autonomous Syste
34984     1105        233         204   BILISIM TELEKOM
12479      840        786          66   Uni2 Autonomous System
13188      839         99          30   Educational Network
20940      791        275         627   Akamai Technologies European 
31148      776         40          20   FreeNet ISP
 6830      715       2314         436   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     2421       1335          88   NET Servicos de Comunicao S.A
10620     2352        405         232   TVCABLE BOGOTA 
 7303     1672       1148         208   Telecom Argentina Stet-France
 8151     1344       2722         393   UniNet S.A. de C.V. 
 6503     1155        434          66   AVANTEL, S.A. 
14754      944        128          86   Telgua S. A. 
18881      829        716          18   Global Village Telecom 
27947      790         87          99   Telconet S.A
 3816      690        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      894        274          34   LINKdotNET AS number
 6713      535        615          23   Itissalat Al-MAGHRIB
 8452      510        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     3042       3695          94   bellsouth.net, inc. 
 4766     2925      11558         922   Korea Telecom (KIX)
17974     2504        840          86   PT TELEKOMUNIKASI INDONESIA
28573     2421       1335          88   NET Servicos de Comunicao S.A
10620     2352        405         232   TVCABLE BOGOTA 
 7029     2229       1266         215   Windstream Communications Inc
18566     2081        382         185   Covad Communications 
22773     1995       2929         125   Cox Communications, Inc.
 1785     1959        677         123   PaeTec Communications, Inc.
 8402     1869        544          16   Corbina telecom

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      2421        2333      NET Servicos de Comunicao S.A
10620      2352        2120      TVCABLE BOGOTA 
 7029      2229        2014      Windstream Communications Inc
 4766      2925        2003      Korea Telecom (KIX)
18566      2081        1896      Covad Communications 
22773      1995        1870      Cox Communications, Inc.
 8402      1869        1853      Corbina telecom
 1785      1959        1836      PaeTec Communications, Inc.
 7545      1833        1744      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      /12:248     
/13:483     /14:872     /15:1563    /16:12651   /17:6623    /18:10871   
/19:21727   /20:31631   /21:33541   /22:46032   /23:41585   /24:233871  
/25:1382    /26:1765    /27:858     /28:181     /29:73      /30:17      
/31:0       /32:20      

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

  ASN   No of nets  Total ann.   Description
18566     2031          2081      Covad Communications 
 6389     1745          3042      bellsouth.net, inc. 
 7029     1609          2229      Windstream Communications Inc
 8402     1591          1869      Corbina telecom
22773     1306          1995      Cox Communications, Inc.
36998     1280          1286      MOBITEL
30036     1217          1334      Mediacom Communications Corp 
11492     1172          1210      Cable One 
 1785     1039          1959      PaeTec Communications, Inc.
 7011      950          1198      Citizens Utilities 

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

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

   1:722       2:789       3:3         4:13        5:704       6:3      
   8:509      12:1932     13:3        14:757      15:11       16:3      
  17:8        20:24       23:239      24:1799     27:1415     31:1178   
  32:44       33:2        34:5        36:27       37:1434     38:860    
  39:2        40:159      41:2725     42:177      44:4        46:1746   
  47:2        49:610      50:664      52:12       54:28       55:10     
  57:28       58:1091     59:579      60:297      61:1386     62:1001   
  63:2042     64:4297     65:2175     66:4271     67:2055     68:1110   
  69:3266     70:881      71:523      72:1898     74:2558     75:400    
  76:288      77:1087     78:1027     79:575      80:1236     81:976    
  82:644      83:558      84:559      85:1165     86:473      87:948    
  88:381      89:1771     90:262      91:5427     92:614      93:1714   
  94:1865     95:1549     96:497      97:336      98:1050     99:41     
 100:29      101:307     103:2284    105:517     106:131     107:207    
 108:515     109:1810    110:846     111:1037    112:496     113:766    
 114:690     115:973     116:877     117:806     118:997     119:1268   
 120:377     121:781     122:1734    123:1189    124:1324    125:1315   
 128:544     129:221     130:323     131:648     132:333     133:143    
 134:256     135:60      136:221     137:241     138:343     139:179    
 140:199     141:312     142:532     143:371     144:489     145:89     
 146:522     147:356     148:703     149:357     150:157     151:449    
 152:411     153:196     154:32      155:379     156:250     157:392    
 158:266     159:714     160:335     161:425     162:376     163:206    
 164:580     165:454     166:394     167:573     168:1017    169:130    
 170:1023    171:168     172:4       173:1588    174:574     175:434    
 176:1182    177:1814    178:1772    179:1       180:1380    181:280    
 182:1200    183:341     184:661     185:294     186:2351    187:1263   
 188:1921    189:1419    190:6616    192:6407    193:5675    194:4519   
 195:3470    196:1305    197:890     198:4203    199:5238    200:6017   
 201:2241    202:8918    203:8711    204:4499    205:2579    206:2785   
 207:2803    208:4072    209:3546    210:2913    211:1552    212:1999   
 213:1938    214:917     215:96      216:5190    217:1587    218:605    
 219:337     220:1263    221:538     222:312     223:482    

End of report


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