Home page logo
/

nanog logo nanog mailing list archives

Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 6 Apr 2013 04:33:12 +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 06 Apr, 2013

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

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

BGP routing table entries examined:                              449057
    Prefixes after maximum aggregation:                          184025
    Deaggregation factor:                                          2.44
    Unique aggregates announced to Internet:                     221630
Total ASes present in the Internet Routing Table:                 43748
    Prefixes per ASN:                                             10.26
Origin-only ASes present in the Internet Routing Table:           34414
Origin ASes announcing only one prefix:                           16061
Transit ASes present in the Internet Routing Table:                5792
Transit-only ASes present in the Internet Routing Table:            139
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               368
    Unregistered ASNs in the Routing Table:                         137
Number of 32-bit ASNs allocated by the RIRs:                       4688
Number of 32-bit ASNs visible in the Routing Table:                3542
Prefixes from 32-bit ASNs in the Routing Table:                   10367
Special use prefixes present in the Routing Table:                   18
Prefixes being announced from unallocated address space:            217
Number of addresses announced to Internet:                   2628059756
    Equivalent to 156 /8s, 165 /16s and 2 /24s
    Percentage of available address space announced:               71.0
    Percentage of allocated address space announced:               71.0
    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:      158789

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

Prefixes being announced by APNIC Region ASes:                   107913
    Total APNIC prefixes after maximum aggregation:               33314
    APNIC Deaggregation factor:                                    3.24
Prefixes being announced from the APNIC address blocks:          109122
    Unique aggregates announced from the APNIC address blocks:    44393
APNIC Region origin ASes present in the Internet Routing Table:    4823
    APNIC Prefixes per ASN:                                       22.63
APNIC Region origin ASes announcing only one prefix:               1227
APNIC Region transit ASes present in the Internet Routing Table:    819
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    486
Number of APNIC addresses announced to Internet:              720399840
    Equivalent to 42 /8s, 240 /16s and 109 /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:                    157436
    Total ARIN prefixes after maximum aggregation:                79453
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           158125
    Unique aggregates announced from the ARIN address blocks:     72365
ARIN Region origin ASes present in the Internet Routing Table:    15598
    ARIN Prefixes per ASN:                                        10.14
ARIN Region origin ASes announcing only one prefix:                5935
ARIN Region transit ASes present in the Internet Routing Table:    1611
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:              1078792832
    Equivalent to 64 /8s, 77 /16s and 18 /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:                    115684
    Total RIPE prefixes after maximum aggregation:                59313
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           119410
    Unique aggregates announced from the RIPE address blocks:     76882
RIPE Region origin ASes present in the Internet Routing Table:    17117
    RIPE Prefixes per ASN:                                         6.98
RIPE Region origin ASes announcing only one prefix:                8148
RIPE Region transit ASes present in the Internet Routing Table:    2801
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:    2276
Number of RIPE addresses announced to Internet:               656040676
    Equivalent to 39 /8s, 26 /16s and 98 /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:                   47491
    Total LACNIC prefixes after maximum aggregation:               9422
    LACNIC Deaggregation factor:                                   5.04
Prefixes being announced from the LACNIC address blocks:          51537
    Unique aggregates announced from the LACNIC address blocks:   23997
LACNIC Region origin ASes present in the Internet Routing Table:   1889
    LACNIC Prefixes per ASN:                                      27.28
LACNIC Region origin ASes announcing only one prefix:               564
LACNIC Region transit ASes present in the Internet Routing Table:   349
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:   755
Number of LACNIC addresses announced to Internet:             126168872
    Equivalent to 7 /8s, 133 /16s and 47 /24s
    Percentage of available LACNIC address space announced:        75.2

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:                  10033
    Total AfriNIC prefixes after maximum aggregation:              2474
    AfriNIC Deaggregation factor:                                  4.06
Prefixes being announced from the AfriNIC address blocks:         10646
    Unique aggregates announced from the AfriNIC address blocks:   3791
AfriNIC Region origin ASes present in the Internet Routing Table:   611
    AfriNIC Prefixes per ASN:                                     17.42
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:             46211584
    Equivalent to 2 /8s, 193 /16s and 34 /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     2955      11558         923   Korea Telecom (KIX)
17974     2510        840          86   PT TELEKOMUNIKASI INDONESIA
 7545     1862        302          94   TPG Internet Pty Ltd
 4755     1732        392         198   TATA Communications formerly 
 9829     1500       1205          40   BSNL National Internet Backbo
 9583     1278         97         535   Sify Limited
 4808     1122       2109         326   CNCGROUP IP network: China169
 7552     1121       1063          21   Vietel Corporation
 9498     1065        310          73   BHARTI Airtel Ltd.
24560     1060        385         164   Bharti Airtel Ltd., Telemedia

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

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3038       3694          88   bellsouth.net, inc. 
 7029     2151       1266         213   Windstream Communications Inc
18566     2068        382         184   Covad Communications 
22773     2008       2929         125   Cox Communications, Inc.
 1785     1973        677         123   PaeTec Communications, Inc.
20115     1668       1610         610   Charter Communications 
 4323     1607       1139         397   Time Warner Telecom
30036     1338        296         657   Mediacom Communications Corp 
 7018     1312      10805         853   AT&T WorldNet Services
11492     1216        223         331   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     1830        544          16   Corbina telecom
34984     1131        234         207   BILISIM TELEKOM
 2118     1116         97          13   EUnet/RELCOM Autonomous Syste
12479      844        786          66   Uni2 Autonomous System
13188      837         99          33   Educational Network
20940      813        283         646   Akamai Technologies European 
31148      790         41          20   FreeNet ISP
 8551      745        370          43   Bezeq International
 6830      734       2314         435   UPC Distribution Services
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     2561       1418          94   NET Servicos de Comunicao S.A
10620     2355        408         227   TVCABLE BOGOTA 
 7303     1673       1152         210   Telecom Argentina Stet-France
 8151     1222       2666         400   UniNet S.A. de C.V. 
 6503     1184        435          68   AVANTEL, S.A. 
14754      951        131          89   Telgua S. A. 
18881      850        716          18   Global Village Telecom 
27947      802         87          95   Telconet S.A
11830      725        364          14   Instituto Costarricense de El
 3816      693        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      671        274          33   LINKdotNET AS number
 6713      541        617          25   Itissalat Al-MAGHRIB
 8452      356        958          13   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      187        698          88   MTN Network Solutions
33776      178         12          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     3038       3694          88   bellsouth.net, inc. 
 4766     2955      11558         923   Korea Telecom (KIX)
28573     2561       1418          94   NET Servicos de Comunicao S.A
17974     2510        840          86   PT TELEKOMUNIKASI INDONESIA
10620     2355        408         227   TVCABLE BOGOTA 
 7029     2151       1266         213   Windstream Communications Inc
18566     2068        382         184   Covad Communications 
22773     2008       2929         125   Cox Communications, Inc.
 1785     1973        677         123   PaeTec Communications, Inc.
 7545     1862        302          94   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      2561        2467      NET Servicos de Comunicao S.A
17974      2510        2424      PT TELEKOMUNIKASI INDONESIA
10620      2355        2128      TVCABLE BOGOTA 
 4766      2955        2032      Korea Telecom (KIX)
 7029      2151        1938      Windstream Communications Inc
18566      2068        1884      Covad Communications 
22773      2008        1883      Cox Communications, Inc.
 1785      1973        1850      PaeTec Communications, Inc.
 8402      1830        1814      Corbina telecom
 7545      1862        1768      TPG Internet Pty Ltd

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 
26064   UNALLOCATED  12.149.37.0/24        7018       AT&T WorldNet Servic

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

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

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.55.0/24        48571     SC efectRO SRL
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.72.0/21        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

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        /8:17       /9:13      /10:29      /11:88      /12:248     
/13:485     /14:875     /15:1557    /16:12685   /17:6615    /18:10898   
/19:21781   /20:31876   /21:33682   /22:46513   /23:41693   /24:235817  
/25:1398    /26:1781    /27:862     /28:43      /29:64      /30:18      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2019          2068      Covad Communications 
 6389     1742          3038      bellsouth.net, inc. 
 7029     1597          2151      Windstream Communications Inc
 8402     1527          1830      Corbina telecom
22773     1314          2008      Cox Communications, Inc.
30036     1215          1338      Mediacom Communications Corp 
11492     1178          1216      Cable One 
36998     1131          1137      MOBITEL
 1785     1045          1973      PaeTec Communications, Inc.
 6983      929          1043      ITC^Deltacom 

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

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

   1:752       2:786       3:3         4:13        5:841       6:4      
   8:519      12:1918     13:3        14:770      15:11       16:3      
  17:9        20:19       23:255      24:1773     27:1433     31:1192   
  32:42       33:2        34:5        36:43       37:1675     38:862    
  39:2        40:164      41:2701     42:185      44:6        46:1786   
  47:2        49:616      50:676      52:12       54:29       55:8      
  57:27       58:1106     59:586      60:304      61:1445     62:992    
  63:2036     64:4289     65:2181     66:4282     67:2060     68:1117   
  69:3254     70:873      71:526      72:1890     74:2551     75:407    
  76:287      77:1088     78:1033     79:583      80:1247     81:978    
  82:609      83:581      84:569      85:1159     86:466      87:962    
  88:526      89:1789     90:281      91:5458     92:618      93:1707   
  94:1873     95:1536     96:502      97:340      98:1048     99:41     
 100:29      101:309     103:2375    105:488     106:126     107:207    
 108:514     109:1812    110:877     111:1045    112:491     113:768    
 114:688     115:1019    116:875     117:795     118:1015    119:1268   
 120:382     121:815     122:1740    123:1187    124:1331    125:1314   
 128:634     129:224     130:331     131:655     132:339     133:148    
 134:258     135:62      136:221     137:246     138:343     139:184    
 140:200     141:314     142:544     143:365     144:481     145:93     
 146:509     147:380     148:697     149:365     150:162     151:554    
 152:415     153:194     154:43      155:382     156:260     157:392    
 158:270     159:713     160:334     161:424     162:373     163:202    
 164:574     165:452     166:331     167:578     168:1018    169:133    
 170:1021    171:174     172:4       173:1591    174:579     175:442    
 176:1140    177:1887    178:2027    179:2       180:1383    181:304    
 182:1123    183:379     184:661     185:335     186:2381    187:1258   
 188:1986    189:1394    190:6646    192:6476    193:5659    194:4518   
 195:3465    196:1311    197:777     198:4313    199:5269    200:6024   
 201:2367    202:8854    203:8790    204:4507    205:2549    206:2788   
 207:2825    208:4060    209:3547    210:2923    211:1566    212:2012   
 213:1942    214:925     215:94      216:5186    217:1571    218:607    
 219:348     220:1271    221:544     222:319     223:499    

End of report


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault