Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 11 18:33:06 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 12 Jan, 2013

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

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

BGP routing table entries examined:                              437884
    Prefixes after maximum aggregation:                          181348
    Deaggregation factor:                                          2.41
    Unique aggregates announced to Internet:                     215724
Total ASes present in the Internet Routing Table:                 43020
    Prefixes per ASN:                                             10.18
Origin-only ASes present in the Internet Routing Table:           34017
Origin ASes announcing only one prefix:                           15902
Transit ASes present in the Internet Routing Table:                5722
Transit-only ASes present in the Internet Routing Table:            138
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      31
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               373
    Unregistered ASNs in the Routing Table:                         127
Number of 32-bit ASNs allocated by the RIRs:                       3639
Number of 32-bit ASNs visible in the Routing Table:                3281
Prefixes from 32-bit ASNs in the Routing Table:                    8953
Special use prefixes present in the Routing Table:                   17
Prefixes being announced from unallocated address space:            173
Number of addresses announced to Internet:                   2624098700
    Equivalent to 156 /8s, 104 /16s and 145 /24s
    Percentage of available address space announced:               70.9
    Percentage of allocated address space announced:               70.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.1
Total number of prefixes smaller than registry allocations:      154190

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

Prefixes being announced by APNIC Region ASes:                   105545
    Total APNIC prefixes after maximum aggregation:               32889
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          106522
    Unique aggregates announced from the APNIC address blocks:    43560
APNIC Region origin ASes present in the Internet Routing Table:    4811
    APNIC Prefixes per ASN:                                       22.14
APNIC Region origin ASes announcing only one prefix:               1246
APNIC Region transit ASes present in the Internet Routing Table:    808
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    405
Number of APNIC addresses announced to Internet:              717167616
    Equivalent to 42 /8s, 191 /16s and 28 /24s
    Percentage of available APNIC address space announced:         83.8

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:                    155202
    Total ARIN prefixes after maximum aggregation:                78549
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           155836
    Unique aggregates announced from the ARIN address blocks:     70811
ARIN Region origin ASes present in the Internet Routing Table:    15378
    ARIN Prefixes per ASN:                                        10.13
ARIN Region origin ASes announcing only one prefix:                5809
ARIN Region transit ASes present in the Internet Routing Table:    1584
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:      17
Number of ARIN addresses announced to Internet:              1090815872
    Equivalent to 65 /8s, 4 /16s and 135 /24s
    Percentage of available ARIN address space announced:          57.7

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 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:                    112644
    Total RIPE prefixes after maximum aggregation:                58422
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           115645
    Unique aggregates announced from the RIPE address blocks:     74206
RIPE Region origin ASes present in the Internet Routing Table:    17024
    RIPE Prefixes per ASN:                                         6.79
RIPE Region origin ASes announcing only one prefix:                8159
RIPE Region transit ASes present in the Internet Routing Table:    2777
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2119
Number of RIPE addresses announced to Internet:               650343140
    Equivalent to 38 /8s, 195 /16s and 114 /24s
    Percentage of available RIPE address space announced:          94.5

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 196608-199679
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   45528
    Total LACNIC prefixes after maximum aggregation:               9059
    LACNIC Deaggregation factor:                                   5.03
Prefixes being announced from the LACNIC address blocks:          49198
    Unique aggregates announced from the LACNIC address blocks:   23241
LACNIC Region origin ASes present in the Internet Routing Table:   1769
    LACNIC Prefixes per ASN:                                      27.81
LACNIC Region origin ASes announcing only one prefix:               500
LACNIC Region transit ASes present in the Internet Routing Table:   339
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:   734
Number of LACNIC addresses announced to Internet:             121449000
    Equivalent to 7 /8s, 61 /16s and 42 /24s
    Percentage of available LACNIC address space announced:        72.4

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:                   9891
    Total AfriNIC prefixes after maximum aggregation:              2377
    AfriNIC Deaggregation factor:                                  4.16
Prefixes being announced from the AfriNIC address blocks:         10510
    Unique aggregates announced from the AfriNIC address blocks:   3752
AfriNIC Region origin ASes present in the Internet Routing Table:   589
    AfriNIC Prefixes per ASN:                                     17.84
AfriNIC Region origin ASes announcing only one prefix:              188
AfriNIC Region transit ASes present in the Internet Routing Table:  127
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:             44029440
    Equivalent to 2 /8s, 159 /16s and 214 /24s
    Percentage of available AfriNIC address space announced:       43.7

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     2952      11556         921   Korea Telecom (KIX)
17974     2484        829          53   PT TELEKOMUNIKASI INDONESIA
 7545     1818        301          88   TPG Internet Pty Ltd
 4755     1662        381         175   TATA Communications formerly 
 9829     1422       1156          42   BSNL National Internet Backbo
 9583     1200         89         502   Sify Limited
 7552     1128       1070          12   Vietel Corporation
 4808     1124       2040         316   CNCGROUP IP network: China169
 9498     1052        310          74   BHARTI Airtel Ltd.
24560     1037        385         160   Bharti Airtel Ltd., Telemedia

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3112       3701         129   bellsouth.net, inc. 
 7029     2289       1265         212   Windstream Communications Inc
18566     2081        382         180   Covad Communications 
22773     1955       2932         131   Cox Communications, Inc.
 1785     1946        678         124   PaeTec Communications, Inc.
20115     1685       1607         624   Charter Communications 
 4323     1598       1155         396   Time Warner Telecom
30036     1357        288         697   Mediacom Communications Corp 
 7018     1302      10550         859   AT&T WorldNet Services
 7011     1206        321         685   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     1863        544          16   Corbina telecom
 2118     1052         97          15   EUnet/RELCOM Autonomous Syste
34984      906        212         230   BILISIM TELEKOM
12479      869        777          64   Uni2 Autonomous System
13188      771         96         117   Educational Network
31148      744         38          14   FreeNet ISP
20940      731        242         575   Akamai Technologies European 
 6830      713       2313         434   UPC Distribution Services
 8551      655        367          39   Bezeq International
58113      633         70         378   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     2278       1302          78   NET Servicos de Comunicao S.A
10620     2275        388         212   TVCABLE BOGOTA 
 7303     1674       1139         202   Telecom Argentina Stet-France
 8151     1544       2900         365   UniNet S.A. de C.V. 
 6503     1454        435          67   AVANTEL, S.A. 
27947      770         85          95   Telconet S.A
18881      750        716          18   Global Village Telecom 
 3816      672        309          71   Empresa Nacional de Telecomun
11172      602         86          66   Servicios Alestra S.A de C.V 
 7738      587       1242          34   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      886        275          36   LINKdotNET AS number
36998      774         80           4   MOBITEL
 8452      541        958          13   TEDATA
 6713      499        602          20   Itissalat Al-MAGHRIB
24835      291         80           8   RAYA Telecom - Egypt
 3741      266        906         224   The Internet Solution 
12258      193         28          67   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      181        697          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     3112       3701         129   bellsouth.net, inc. 
 4766     2952      11556         921   Korea Telecom (KIX)
17974     2484        829          53   PT TELEKOMUNIKASI INDONESIA
 7029     2289       1265         212   Windstream Communications Inc
28573     2278       1302          78   NET Servicos de Comunicao S.A
10620     2275        388         212   TVCABLE BOGOTA 
18566     2081        382         180   Covad Communications 
22773     1955       2932         131   Cox Communications, Inc.
 1785     1946        678         124   PaeTec Communications, Inc.
 8402     1863        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      2484        2431      PT TELEKOMUNIKASI INDONESIA
28573      2278        2200      NET Servicos de Comunicao S.A
 7029      2289        2077      Windstream Communications Inc
10620      2275        2063      TVCABLE BOGOTA 
 4766      2952        2031      Korea Telecom (KIX)
18566      2081        1901      Covad Communications 
 8402      1863        1847      Corbina telecom
22773      1955        1824      Cox Communications, Inc.
 1785      1946        1822      PaeTec Communications, Inc.
 7545      1818        1730      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
128.0.24.0/21        41794     Altline LLC
128.0.60.0/23        57417     INTERNET TASMANIA SRL
128.0.62.0/23        57417     INTERNET TASMANIA SRL
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

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
31.210.16.0/22       15657     Neural Networks ASN
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 
64.66.32.0/20        18864     >>UNKNOWN<<
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.

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      /12:245     
/13:478     /14:860     /15:1548    /16:12501   /17:6586    /18:10934   
/19:21636   /20:31125   /21:33155   /22:44421   /23:40713   /24:229361  
/25:1316    /26:1696    /27:872     /28:178     /29:74      /30:17      
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
18566     2031          2081      Covad Communications 
 6389     1771          3112      bellsouth.net, inc. 
 7029     1645          2289      Windstream Communications Inc
 8402     1584          1863      Corbina telecom
22773     1286          1955      Cox Communications, Inc.
30036     1254          1357      Mediacom Communications Corp 
11492     1157          1194      Cable One 
 1785     1028          1946      PaeTec Communications, Inc.
 6503      980          1454      AVANTEL, S.A. 
 7011      955          1206      Citizens Utilities 

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

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

   1:696       2:762       3:3         4:13        5:719       6:3      
   8:486      12:1922     13:3        14:699      15:11       16:3      
  17:6        20:27       23:220      24:1795     27:1475     31:1120   
  32:54       33:2        34:2        36:10       37:1172     38:838    
  39:2        40:139      41:2668     42:181      44:3        46:1727   
  47:3        49:537      50:652      52:12       54:28       55:7      
  57:28       58:1072     59:563      60:234      61:1318     62:1036   
  63:2039     64:4306     65:2161     66:4277     67:2119     68:1133   
  69:3310     70:862      71:535      72:1883     74:2547     75:414    
  76:294      77:1051     78:1007     79:538      80:1221     81:975    
  82:659      83:537      84:529      85:1155     86:467      87:974    
  88:359      89:1741     90:303      91:5383     92:608      93:1614   
  94:1990     95:1672     96:484      97:338      98:971      99:52     
 100:31      101:299     103:1981    105:583     106:126     107:207    
 108:503     109:1741    110:844     111:994     112:469     113:738    
 114:680     115:919     116:901     117:776     118:965     119:1279   
 120:332     121:702     122:1732    123:1185    124:1314    125:1303   
 128:558     129:202     130:310     131:644     132:318     133:142    
 134:255     135:62      136:216     137:234     138:342     139:160    
 140:217     141:315     142:516     143:372     144:479     145:89     
 146:521     147:293     148:733     149:335     150:163     151:258    
 152:399     153:188     154:24      155:448     156:232     157:379    
 158:257     159:694     160:335     161:422     162:367     163:193    
 164:582     165:461     166:458     167:570     168:1006    169:131    
 170:1003    171:162     172:4       173:1516    174:752     175:416    
 176:960     177:1536    178:1710    180:1372    181:195     182:1167   
 183:297     184:653     185:163     186:2184    187:1460    188:1924   
 189:1567    190:6216    192:6122    193:5723    194:4498    195:3597   
 196:1238    197:302     198:4075    199:5166    200:5991    201:2031   
 202:8778    203:8734    204:4473    205:2543    206:2791    207:2772   
 208:4077    209:3529    210:2901    211:1561    212:2005    213:1886   
 214:898     215:90      216:5057    217:1583    218:598     219:325    
 220:1264    221:528     222:324     223:401    

End of report



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