Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 19 18:50:44 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 20 Oct, 2012

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

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

BGP routing table entries examined:                              428559
    Prefixes after maximum aggregation:                          179230
    Deaggregation factor:                                          2.39
    Unique aggregates announced to Internet:                     210798
Total ASes present in the Internet Routing Table:                 42395
    Prefixes per ASN:                                             10.11
Origin-only ASes present in the Internet Routing Table:           33734
Origin ASes announcing only one prefix:                           15789
Transit ASes present in the Internet Routing Table:                5646
Transit-only ASes present in the Internet Routing Table:            141
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      40
    Max AS path prepend of ASN ( 22394)                              36
Prefixes from unregistered ASNs in the Routing Table:               853
    Unregistered ASNs in the Routing Table:                         317
Number of 32-bit ASNs allocated by the RIRs:                       3396
Number of 32-bit ASNs visible in the Routing Table:                3015
Prefixes from 32-bit ASNs in the Routing Table:                    8150
Special use prefixes present in the Routing Table:                   13
Prefixes being announced from unallocated address space:            159
Number of addresses announced to Internet:                   2606837356
    Equivalent to 155 /8s, 97 /16s and 46 /24s
    Percentage of available address space announced:               70.4
    Percentage of allocated address space announced:               70.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               93.8
Total number of prefixes smaller than registry allocations:      150124

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

Prefixes being announced by APNIC Region ASes:                   103203
    Total APNIC prefixes after maximum aggregation:               32571
    APNIC Deaggregation factor:                                    3.17
Prefixes being announced from the APNIC address blocks:          103964
    Unique aggregates announced from the APNIC address blocks:    43021
APNIC Region origin ASes present in the Internet Routing Table:    4773
    APNIC Prefixes per ASN:                                       21.78
APNIC Region origin ASes announcing only one prefix:               1245
APNIC Region transit ASes present in the Internet Routing Table:    773
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:    334
Number of APNIC addresses announced to Internet:              711007648
    Equivalent to 42 /8s, 97 /16s and 29 /24s
    Percentage of available APNIC address space announced:         83.1

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:                    154687
    Total ARIN prefixes after maximum aggregation:                78240
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           155549
    Unique aggregates announced from the ARIN address blocks:     69508
ARIN Region origin ASes present in the Internet Routing Table:    15279
    ARIN Prefixes per ASN:                                        10.18
ARIN Region origin ASes announcing only one prefix:                5776
ARIN Region transit ASes present in the Internet Routing Table:    1594
Average ARIN Region AS path length visible:                         4.2
    Max ARIN Region AS path length visible:                          40
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1086895232
    Equivalent to 64 /8s, 200 /16s and 180 /24s
    Percentage of available ARIN address space announced:          57.5

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:                    108941
    Total RIPE prefixes after maximum aggregation:                57423
    RIPE Deaggregation factor:                                     1.90
Prefixes being announced from the RIPE address blocks:           111567
    Unique aggregates announced from the RIPE address blocks:     71809
RIPE Region origin ASes present in the Internet Routing Table:    16909
    RIPE Prefixes per ASN:                                         6.60
RIPE Region origin ASes announcing only one prefix:                8137
RIPE Region transit ASes present in the Internet Routing Table:    2742
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1960
Number of RIPE addresses announced to Internet:               648350500
    Equivalent to 38 /8s, 165 /16s and 11 /24s
    Percentage of available RIPE address space announced:          94.3

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:                   43966
    Total LACNIC prefixes after maximum aggregation:               8703
    LACNIC Deaggregation factor:                                   5.05
Prefixes being announced from the LACNIC address blocks:          47340
    Unique aggregates announced from the LACNIC address blocks:   22764
LACNIC Region origin ASes present in the Internet Routing Table:   1679
    LACNIC Prefixes per ASN:                                      28.20
LACNIC Region origin ASes announcing only one prefix:               460
LACNIC Region transit ASes present in the Internet Routing Table:   320
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   698
Number of LACNIC addresses announced to Internet:             117995816
    Equivalent to 7 /8s, 8 /16s and 121 /24s
    Percentage of available LACNIC address space announced:        70.3

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:                   9492
    Total AfriNIC prefixes after maximum aggregation:              2239
    AfriNIC Deaggregation factor:                                  4.24
Prefixes being announced from the AfriNIC address blocks:          9980
    Unique aggregates announced from the AfriNIC address blocks:   3557
AfriNIC Region origin ASes present in the Internet Routing Table:   566
    AfriNIC Prefixes per ASN:                                     17.63
AfriNIC Region origin ASes announcing only one prefix:              171
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:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             42290432
    Equivalent to 2 /8s, 133 /16s and 77 /24s
    Percentage of available AfriNIC address space announced:       42.0

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     2968      11430         899   Korea Telecom (KIX)
17974     2366        830          54   PT TELEKOMUNIKASI INDONESIA
 7545     1775        301          87   TPG Internet Pty Ltd
 4755     1617        387         163   TATA Communications formerly 
 9829     1409       1154          41   BSNL National Internet Backbo
 9583     1199         89         512   Sify Limited
 4808     1112       2056         315   CNCGROUP IP network: China169
 7552     1090       1062          15   Vietel Corporation
24560     1036        385         162   Bharti Airtel Ltd., Telemedia
 9498     1019        307          69   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
 6389     3187       3726         166   bellsouth.net, inc. 
 7029     3136        990         162   Windstream Communications Inc
18566     2084        382         180   Covad Communications 
 1785     1926        678         126   PaeTec Communications, Inc.
22773     1907       2931         128   Cox Communications, Inc.
20115     1660       1583         615   Charter Communications 
 4323     1590       1155         392   Time Warner Telecom
30036     1353        269         748   Mediacom Communications Corp 
 7018     1270      10303         843   AT&T WorldNet Services
 7011     1220        333         690   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     1783        544          16   Corbina telecom
 2118     1172         97          14   EUnet/RELCOM Autonomous Syste
12479      851        776          64   Uni2 Autonomous System
34984      813        207         189   BILISIM TELEKOM
31148      725         37           9   FreeNet ISP
 6830      723       2313         445   UPC Distribution Services
20940      706        223         548   Akamai Technologies European 
13188      702         93         144   Educational Network
58113      602         67         364   LIR DATACENTER TELECOM SRL
 8551      575        364          61   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     2194        378         227   TVCABLE BOGOTA 
28573     2139       1277          60   NET Servicos de Comunicao S.A
 7303     1662       1131         203   Telecom Argentina Stet-France
 8151     1590       3028         355   UniNet S.A. de C.V. 
 6503     1539        435          69   AVANTEL, S.A. 
27947      737         74          95   Telconet S.A
 3816      649        309          70   Empresa Nacional de Telecomun
11172      596         85          66   Servicios Alestra S.A de C.V 
14420      589         87         102   CORPORACION NACIONAL DE TELEC
 7738      586       1178          33   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
24863      895        275          36   LINKdotNET AS number
36998      672         48           3   MOBITEL
 8452      644        958          13   TEDATA
 6713      516        650          19   Itissalat Al-MAGHRIB
24835      270         80           8   RAYA Telecom - Egypt
 3741      266        906         224   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      192         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      172        682          85   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     3187       3726         166   bellsouth.net, inc. 
 7029     3136        990         162   Windstream Communications Inc
 4766     2968      11430         899   Korea Telecom (KIX)
17974     2366        830          54   PT TELEKOMUNIKASI INDONESIA
10620     2194        378         227   TVCABLE BOGOTA 
28573     2139       1277          60   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
 1785     1926        678         126   PaeTec Communications, Inc.
22773     1907       2931         128   Cox Communications, Inc.
 8402     1783        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
 7029      3136        2974      Windstream Communications Inc
17974      2366        2312      PT TELEKOMUNIKASI INDONESIA
28573      2139        2079      NET Servicos de Comunicao S.A
 4766      2968        2069      Korea Telecom (KIX)
10620      2194        1967      TVCABLE BOGOTA 
18566      2084        1904      Covad Communications 
 1785      1926        1800      PaeTec Communications, Inc.
22773      1907        1779      Cox Communications, Inc.
 8402      1783        1767      Corbina telecom
 7545      1775        1688      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
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
59441   UNALLOCATED  5.144.128.0/21       50810       Mobin Net Communicat
59581   UNALLOCATED  5.149.8.0/21         25577       C4L main AS
59457   UNALLOCATED  5.149.64.0/24        35567       DASTO semtel d.o.o.
59457   UNALLOCATED  5.149.64.0/19        35567       DASTO semtel d.o.o.

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

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

Prefix             Origin AS  Description
128.0.24.0/21        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
128.0.128.0/20       29285     AMT closed joint-stock compan
128.0.144.0/22       59675     >>UNKNOWN<<
128.0.160.0/21       23456     32-bit ASN transition
128.0.168.0/21       15772     W-NET Kiev

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

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

Network            Origin AS  Description
14.192.12.0/22       45464     Room 201, TGU Bldg
14.192.16.0/22       45464     Room 201, TGU Bldg
14.192.28.0/22       45464     Room 201, TGU Bldg
27.112.114.0/24      23884     Proimage Engineering and Comm
41.220.80.0/24       38925     DAC AS Germany
41.220.81.0/24       38925     DAC AS Germany
41.220.94.0/23       42235     Intra Data Communication
41.222.80.0/21       37110     Moztel LDA
41.223.108.0/22      36966     >>UNKNOWN<<
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 

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       /9:14      /10:29      /11:87      /12:242     
/13:478     /14:849     /15:1547    /16:12450   /17:6502    /18:10844   
/19:21201   /20:30464   /21:32460   /22:42916   /23:40154   /24:224076  
/25:1352    /26:1684    /27:907     /28:177     /29:66      /30:17      
/31:0       /32:25      

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

  ASN   No of nets  Total ann.   Description
 7029     2625          3136      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1792          3187      bellsouth.net, inc. 
 8402     1493          1783      Corbina telecom
30036     1280          1353      Mediacom Communications Corp 
22773     1247          1907      Cox Communications, Inc.
11492     1148          1183      Cable One 
 6503     1054          1539      AVANTEL, S.A. 
 1785     1016          1926      PaeTec Communications, Inc.
 7011      956          1220      Citizens Utilities 

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

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

   1:648       2:771       3:1         4:13        5:576       6:3      
   8:474      12:1982     13:1        14:669      15:11       16:3      
  17:6        20:27       23:211      24:1789     27:1369     31:1031   
  32:54       33:2        34:2        36:7        37:860      38:830    
  39:2        40:136      41:2757     42:158      44:3        46:1650   
  47:2        49:455      50:598      52:12       54:25       55:8      
  56:5        57:27       58:983      59:546      60:236      61:1294   
  62:940      63:2001     64:4281     65:2231     66:4529     67:2077   
  68:1153     69:3231     70:987      71:505      72:1868     74:2609   
  75:481      76:309      77:984      78:981      79:503      80:1233   
  81:970      82:623      83:542      84:521      85:1153     86:484    
  87:943      88:360      89:1804     90:304      91:5257     92:584    
  93:1465     94:1644     95:1143     96:396      97:325      98:973    
  99:39      100:32      101:269     103:1663    105:428     106:121    
 107:201     108:484     109:1586    110:805     111:972     112:435    
 113:727     114:629     115:891     116:895     117:755     118:945    
 119:1223    120:332     121:689     122:1698    123:1163    124:1340   
 125:1282    128:569     129:196     130:284     131:611     132:304    
 133:22      134:250     135:62      136:219     137:241     138:338    
 139:170     140:492     141:286     142:492     143:380     144:498    
 145:82      146:507     147:268     148:756     149:331     150:154    
 151:199     152:448     153:179     154:20      155:431     156:227    
 157:373     158:258     159:660     160:339     161:412     162:365    
 163:191     164:706     165:442     166:526     167:555     168:993    
 169:126     170:920     171:166     172:7       173:1657    174:616    
 175:453     176:766     177:1285    178:1611    180:1347    181:162    
 182:1106    183:314     184:608     185:28      186:2218    187:1334   
 188:1692    189:1599    190:5822    192:6050    193:5535    194:4595   
 195:3663    196:1230    197:244     198:3864    199:5098    200:5982   
 201:1969    202:8683    203:8719    204:4413    205:2530    206:2771   
 207:2804    208:4070    209:3627    210:2834    211:1535    212:2009   
 213:1851    214:897     215:87      216:5121    217:1570    218:572    
 219:314     220:1252    221:532     222:337     223:410    

End of report



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