Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 7 18:52:23 UTC 2012


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 08 Dec, 2012

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

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

BGP routing table entries examined:                              436440
    Prefixes after maximum aggregation:                          180518
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     213616
Total ASes present in the Internet Routing Table:                 42792
    Prefixes per ASN:                                             10.20
Origin-only ASes present in the Internet Routing Table:           33895
Origin ASes announcing only one prefix:                           15847
Transit ASes present in the Internet Routing Table:                5707
Transit-only ASes present in the Internet Routing Table:            135
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      40
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:              1150
    Unregistered ASNs in the Routing Table:                         420
Number of 32-bit ASNs allocated by the RIRs:                       3560
Number of 32-bit ASNs visible in the Routing Table:                3190
Prefixes from 32-bit ASNs in the Routing Table:                    8632
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            153
Number of addresses announced to Internet:                   2618209004
    Equivalent to 156 /8s, 14 /16s and 178 /24s
    Percentage of available address space announced:               70.7
    Percentage of allocated address space announced:               70.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.0
Total number of prefixes smaller than registry allocations:      153938

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

Prefixes being announced by APNIC Region ASes:                   105256
    Total APNIC prefixes after maximum aggregation:               32667
    APNIC Deaggregation factor:                                    3.22
Prefixes being announced from the APNIC address blocks:          106149
    Unique aggregates announced from the APNIC address blocks:    43289
APNIC Region origin ASes present in the Internet Routing Table:    4803
    APNIC Prefixes per ASN:                                       22.10
APNIC Region origin ASes announcing only one prefix:               1250
APNIC Region transit ASes present in the Internet Routing Table:    793
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:    383
Number of APNIC addresses announced to Internet:              715881888
    Equivalent to 42 /8s, 171 /16s and 125 /24s
    Percentage of available APNIC address space announced:         83.7

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:                    155641
    Total ARIN prefixes after maximum aggregation:                78471
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           156370
    Unique aggregates announced from the ARIN address blocks:     70031
ARIN Region origin ASes present in the Internet Routing Table:    15331
    ARIN Prefixes per ASN:                                        10.20
ARIN Region origin ASes announcing only one prefix:                5789
ARIN Region transit ASes present in the Internet Routing Table:    1596
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:      18
Number of ARIN addresses announced to Internet:              1088929152
    Equivalent to 64 /8s, 231 /16s and 189 /24s
    Percentage of available ARIN address space announced:          57.6

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:                    112008
    Total RIPE prefixes after maximum aggregation:                58057
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           114875
    Unique aggregates announced from the RIPE address blocks:     73582
RIPE Region origin ASes present in the Internet Routing Table:    16984
    RIPE Prefixes per ASN:                                         6.76
RIPE Region origin ASes announcing only one prefix:                8129
RIPE Region transit ASes present in the Internet Routing Table:    2764
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          40
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2062
Number of RIPE addresses announced to Internet:               649605028
    Equivalent to 38 /8s, 184 /16s and 47 /24s
    Percentage of available RIPE address space announced:          94.4

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:                   45021
    Total LACNIC prefixes after maximum aggregation:               8937
    LACNIC Deaggregation factor:                                   5.04
Prefixes being announced from the LACNIC address blocks:          48547
    Unique aggregates announced from the LACNIC address blocks:   22960
LACNIC Region origin ASes present in the Internet Routing Table:   1735
    LACNIC Prefixes per ASN:                                      27.98
LACNIC Region origin ASes announcing only one prefix:               497
LACNIC Region transit ASes present in the Internet Routing Table:   329
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   721
Number of LACNIC addresses announced to Internet:             120301608
    Equivalent to 7 /8s, 43 /16s and 168 /24s
    Percentage of available LACNIC address space announced:        71.7

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:                   9764
    Total AfriNIC prefixes after maximum aggregation:              2332
    AfriNIC Deaggregation factor:                                  4.19
Prefixes being announced from the AfriNIC address blocks:         10346
    Unique aggregates announced from the AfriNIC address blocks:   3620
AfriNIC Region origin ASes present in the Internet Routing Table:   582
    AfriNIC Prefixes per ASN:                                     17.78
AfriNIC Region origin ASes announcing only one prefix:              182
AfriNIC Region transit ASes present in the Internet Routing Table:  128
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             43028480
    Equivalent to 2 /8s, 144 /16s and 144 /24s
    Percentage of available AfriNIC address space announced:       42.7

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     2932      11557         902   Korea Telecom (KIX)
17974     2432        826          46   PT TELEKOMUNIKASI INDONESIA
 7545     1812        301          90   TPG Internet Pty Ltd
 4755     1664        383         177   TATA Communications formerly 
 9829     1412       1155          41   BSNL National Internet Backbo
 9583     1180         88         498   Sify Limited
 7552     1140       1062          11   Vietel Corporation
 4808     1126       2056         317   CNCGROUP IP network: China169
24560     1035        385         165   Bharti Airtel Ltd., Telemedia
 9498     1025        307          70   BHARTI Airtel Ltd.

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
 7029     3197        994         218   Windstream Communications Inc
 6389     3133       3719         142   bellsouth.net, inc. 
18566     2082        382         180   Covad Communications 
22773     1940       2932         131   Cox Communications, Inc.
 1785     1935        678         124   PaeTec Communications, Inc.
20115     1687       1607         623   Charter Communications 
 4323     1589       1153         395   Time Warner Telecom
30036     1370        290         754   Mediacom Communications Corp 
 7018     1285      10533         852   AT&T WorldNet Services
 7011     1215        322         692   Citizens Utilities 

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     1757        544          16   Corbina telecom
 2118     1424         97          15   EUnet/RELCOM Autonomous Syste
12479      859        777          64   Uni2 Autonomous System
34984      857        210         217   BILISIM TELEKOM
13188      745         95         132   Educational Network
31148      738         38          13   FreeNet ISP
 6830      715       2313         436   UPC Distribution Services
20940      705        227         544   Akamai Technologies European 
58113      613         68         372   LIR DATACENTER TELECOM SRL
 8551      602        367          39   Bezeq International

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
10620     2263        386         207   TVCABLE BOGOTA 
28573     2199       1290          71   NET Servicos de Comunicao S.A
 7303     1671       1138         202   Telecom Argentina Stet-France
 8151     1603       3028         356   UniNet S.A. de C.V. 
 6503     1536        435          67   AVANTEL, S.A. 
27947      759         85          93   Telconet S.A
 3816      660        309          71   Empresa Nacional de Telecomun
11172      603         85          68   Servicios Alestra S.A de C.V 
18881      602        716          18   Global Village Telecom 
22047      579        326          15   VTR PUNTO NET 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
24863      874        275          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 8452      546        958          13   TEDATA
 6713      519        666          20   Itissalat Al-MAGHRIB
24835      291         80           8   RAYA Telecom - Egypt
 3741      267        906         225   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
33776      190         12          13   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
 7029     3197        994         218   Windstream Communications Inc
 6389     3133       3719         142   bellsouth.net, inc. 
 4766     2932      11557         902   Korea Telecom (KIX)
17974     2432        826          46   PT TELEKOMUNIKASI INDONESIA
10620     2263        386         207   TVCABLE BOGOTA 
28573     2199       1290          71   NET Servicos de Comunicao S.A
18566     2082        382         180   Covad Communications 
22773     1940       2932         131   Cox Communications, Inc.
 1785     1935        678         124   PaeTec Communications, Inc.
 7545     1812        301          90   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
 6389      3133        2991      bellsouth.net, inc. 
17974      2432        2386      PT TELEKOMUNIKASI INDONESIA
28573      2199        2128      NET Servicos de Comunicao S.A
10620      2263        2056      TVCABLE BOGOTA 
 4766      2932        2030      Korea Telecom (KIX)
18566      2082        1902      Covad Communications 
 1785      1935        1811      PaeTec Communications, Inc.
22773      1940        1809      Cox Communications, Inc.
 8402      1757        1741      Corbina telecom
 7545      1812        1722      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
59505   UNALLOCATED  5.2.65.0/24          50673       Serverius AS
59505   UNALLOCATED  5.2.66.0/24          50673       Serverius AS
59530   UNALLOCATED  5.8.182.0/24         31261       GARS Telecom
61408   UNALLOCATED  5.56.0.0/21            174       Cogent Communication
61395   UNALLOCATED  5.83.56.0/22          3292       TDC Tele Danmark
61395   UNALLOCATED  5.83.60.0/22          3292       TDC Tele Danmark
59414   UNALLOCATED  5.102.144.0/21       15576       Nextra backbone in D
59395   UNALLOCATED  5.133.16.0/21         3549       Global Crossing 
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH
59521   UNALLOCATED  5.134.192.0/21       29518       Labs2

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
128.0.24.0/21        41794     Altline LLC
128.0.64.0/22        49466     Declic Telecom SAS
128.0.68.0/22        49466     Declic Telecom SAS
128.0.72.0/21        23456     32-bit ASN transition
128.0.80.0/20        52041     Timer LTD
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     >>UNKNOWN<<

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

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

Network            Origin AS  Description
27.112.114.0/24      23884     Proimage Engineering and Comm
41.222.80.0/21       37110     Moztel LDA
41.223.108.0/22      36966     >>UNKNOWN<<
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 
64.66.32.0/20        18864     >>UNKNOWN<<
64.187.160.0/20      54858     Condointernet.net
64.187.208.0/24        174     Cogent Communications
64.187.209.0/24      23005     Power Pulse 

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        /8:18       /9:13      /10:29      /11:87      /12:244     
/13:477     /14:857     /15:1551    /16:12480   /17:6569    /18:10967   
/19:21557   /20:30819   /21:32936   /22:43986   /23:40759   /24:228826  
/25:1360    /26:1735    /27:866     /28:183     /29:79      /30:17      
/31:0       /32:25      

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

  ASN   No of nets  Total ann.   Description
 7029     2622          3197      Windstream Communications Inc
18566     2032          2082      Covad Communications 
 6389     1776          3133      bellsouth.net, inc. 
 8402     1476          1757      Corbina telecom
30036     1279          1370      Mediacom Communications Corp 
22773     1274          1940      Cox Communications, Inc.
11492     1147          1183      Cable One 
 6503     1055          1536      AVANTEL, S.A. 
 1785     1020          1935      PaeTec Communications, Inc.
 7011      953          1215      Citizens Utilities 

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

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

   1:644       2:710       3:1         4:13        5:667       6:3      
   8:488      12:1952     13:3        14:700      15:11       16:3      
  17:6        20:27       23:214      24:1790     27:1409     31:1311   
  32:54       33:2        34:2        36:7        37:1069     38:845    
  39:2        40:140      41:2678     42:179      44:3        46:1701   
  47:3        49:511      50:622      52:12       54:27       55:8      
  57:28       58:1066     59:581      60:235      61:1367     62:1025   
  63:2022     64:4362     65:2206     66:4486     67:2084     68:1181   
  69:3248     70:922      71:548      72:1900     74:2627     75:479    
  76:297      77:1032     78:1001     79:509      80:1212     81:982    
  82:627      83:533      84:530      85:1154     86:475      87:959    
  88:353      89:1766     90:305      91:5360     92:589      93:1611   
  94:2020     95:1359     96:457      97:322      98:966      99:40     
 100:31      101:286     103:1905    105:516     106:119     107:203    
 108:491     109:1694    110:823     111:974     112:459     113:740    
 114:643     115:971     116:886     117:776     118:970     119:1256   
 120:378     121:795     122:1733    123:1165    124:1325    125:1287   
 128:560     129:202     130:296     131:642     132:319     133:143    
 134:254     135:62      136:215     137:234     138:343     139:167    
 140:180     141:304     142:506     143:355     144:491     145:81     
 146:521     147:269     148:735     149:330     150:154     151:235    
 152:399     153:187     154:22      155:441     156:226     157:379    
 158:256     159:678     160:335     161:415     162:372     163:188    
 164:580     165:451     166:476     167:566     168:992     169:131    
 170:985     171:169     172:6       173:1704    174:634     175:459    
 176:852     177:1461    178:1701    180:1345    181:181     182:1122   
 183:305     184:625     185:117     186:2102    187:1443    188:1799   
 189:1609    190:6160    192:6087    193:5821    194:4646    195:3665   
 196:1248    197:279     198:3981    199:5131    200:6018    201:1974   
 202:8811    203:8739    204:4435    205:2557    206:2755    207:2817   
 208:4080    209:3651    210:2916    211:1533    212:2109    213:1858   
 214:888     215:74      216:5176    217:1608    218:590     219:341    
 220:1259    221:542     222:336     223:361    

End of report



More information about the NANOG mailing list