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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 4 Aug 2012 05:15:38 +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 04 Aug, 2012

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

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

BGP routing table entries examined:                              421297
    Prefixes after maximum aggregation:                          176997
    Deaggregation factor:                                          2.38
    Unique aggregates announced to Internet:                     205030
Total ASes present in the Internet Routing Table:                 41696
    Prefixes per ASN:                                             10.10
Origin-only ASes present in the Internet Routing Table:           33409
Origin ASes announcing only one prefix:                           15690
Transit ASes present in the Internet Routing Table:                5591
Transit-only ASes present in the Internet Routing Table:            133
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      32
    Max AS path prepend of ASN ( 48687)                              24
Prefixes from unregistered ASNs in the Routing Table:               392
    Unregistered ASNs in the Routing Table:                         151
Number of 32-bit ASNs allocated by the RIRs:                       3071
Number of 32-bit ASNs visible in the Routing Table:                2696
Prefixes from 32-bit ASNs in the Routing Table:                    6948
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            161
Number of addresses announced to Internet:                   2572875148
    Equivalent to 153 /8s, 90 /16s and 245 /24s
    Percentage of available address space announced:               69.4
    Percentage of allocated address space announced:               69.5
    Percentage of available address space allocated:               99.9
    Percentage of address space in use by end-sites:               93.1
Total number of prefixes smaller than registry allocations:      147802

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

Prefixes being announced by APNIC Region ASes:                   102288
    Total APNIC prefixes after maximum aggregation:               32823
    APNIC Deaggregation factor:                                    3.12
Prefixes being announced from the APNIC address blocks:          102793
    Unique aggregates announced from the APNIC address blocks:    42228
APNIC Region origin ASes present in the Internet Routing Table:    4730
    APNIC Prefixes per ASN:                                       21.73
APNIC Region origin ASes announcing only one prefix:               1240
APNIC Region transit ASes present in the Internet Routing Table:    754
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:    271
Number of APNIC addresses announced to Internet:              706547840
    Equivalent to 42 /8s, 29 /16s and 16 /24s
    Percentage of available APNIC address space announced:         82.6

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:                    153466
    Total ARIN prefixes after maximum aggregation:                77832
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           154514
    Unique aggregates announced from the ARIN address blocks:     68935
ARIN Region origin ASes present in the Internet Routing Table:    15204
    ARIN Prefixes per ASN:                                        10.16
ARIN Region origin ASes announcing only one prefix:                5759
ARIN Region transit ASes present in the Internet Routing Table:    1602
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:      16
Number of ARIN addresses announced to Internet:              1073191808
    Equivalent to 63 /8s, 247 /16s and 155 /24s
    Percentage of available ARIN address space announced:          56.8

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:                    105816
    Total RIPE prefixes after maximum aggregation:                55707
    RIPE Deaggregation factor:                                     1.90
Prefixes being announced from the RIPE address blocks:           107992
    Unique aggregates announced from the RIPE address blocks:     68316
RIPE Region origin ASes present in the Internet Routing Table:    16728
    RIPE Prefixes per ASN:                                         6.46
RIPE Region origin ASes announcing only one prefix:                8102
RIPE Region transit ASes present in the Internet Routing Table:    2709
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1761
Number of RIPE addresses announced to Internet:               638230756
    Equivalent to 38 /8s, 10 /16s and 160 /24s
    Percentage of available RIPE address space announced:          92.8

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:                   43064
    Total LACNIC prefixes after maximum aggregation:               8394
    LACNIC Deaggregation factor:                                   5.13
Prefixes being announced from the LACNIC address blocks:          45825
    Unique aggregates announced from the LACNIC address blocks:   21998
LACNIC Region origin ASes present in the Internet Routing Table:   1619
    LACNIC Prefixes per ASN:                                      28.30
LACNIC Region origin ASes announcing only one prefix:               421
LACNIC Region transit ASes present in the Internet Routing Table:   314
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   642
Number of LACNIC addresses announced to Internet:             113014696
    Equivalent to 6 /8s, 188 /16s and 119 /24s
    Percentage of available LACNIC address space announced:        67.4

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:                   9558
    Total AfriNIC prefixes after maximum aggregation:              2187
    AfriNIC Deaggregation factor:                                  4.37
Prefixes being announced from the AfriNIC address blocks:         10012
    Unique aggregates announced from the AfriNIC address blocks:   3413
AfriNIC Region origin ASes present in the Internet Routing Table:   553
    AfriNIC Prefixes per ASN:                                     18.10
AfriNIC Region origin ASes announcing only one prefix:              168
AfriNIC Region transit ASes present in the Internet Routing Table:  124
Average AfriNIC Region AS path length visible:                      4.6
    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:             41555712
    Equivalent to 2 /8s, 122 /16s and 23 /24s
    Percentage of available AfriNIC address space announced:       41.3

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     2760      11123        1253   Korea Telecom (KIX)
17974     2291        702          54   PT TELEKOMUNIKASI INDONESIA
 7545     1710        301          86   TPG Internet Pty Ltd
 4755     1603        386         156   TATA Communications formerly 
 9829     1310       1084          31   BSNL National Internet Backbo
 9583     1159         87         507   Sify Limited
 7552     1128       1062          11   Vietel Corporation
 4808     1122       2052         322   CNCGROUP IP network: China169
24560     1037        384         165   Bharti Airtel Ltd., Telemedia
 9498      993        294          73   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     3443        986         155   Windstream Communications Inc
 6389     3343       3773         191   bellsouth.net, inc. 
18566     2088        382         181   Covad Communications 
 1785     1946        681         131   PaeTec Communications, Inc.
22773     1699       2914         125   Cox Communications, Inc.
20115     1646       1572         611   Charter Communications 
 4323     1577       1027         385   Time Warner Telecom
30036     1431        280         786   Mediacom Communications Corp 
 7018     1247      10039         816   AT&T WorldNet Services
11492     1191        216         351   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     1569        544          16   Corbina telecom
15557     1215       2247          55   LDCOM NETWORKS
12479      823        761          88   Uni2 Autonomous System
34984      735        189         177   BILISIM TELEKOM
20940      722        236         566   Akamai Technologies European 
 6830      714       2310         445   UPC Distribution Services
31148      704         37           9   FreeNet ISP
 2118      664         97          14   EUnet/RELCOM Autonomous Syste
13188      660        100           9   Educational Network
 8551      577        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     2036        350         211   TVCABLE BOGOTA 
28573     2026       1228          58   NET Servicos de Comunicao S.A
 6503     1527        419          66   AVANTEL, S.A. 
 8151     1473       3071         346   UniNet S.A. de C.V. 
 7303     1460        936         198   Telecom Argentina Stet-France
 6458      882         81          15   GUATEL 
27947      719         74          95   Telconet S.A
11172      644         91          74   Servicios Alestra S.A de C.V 
 3816      602        255          90   Empresa Nacional de Telecomun
22047      583        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
 8452      966        958          13   TEDATA
24863      864        274          32   LINKdotNET AS number
 6713      509        650          19   Itissalat Al-MAGHRIB
36998      483         48           3   MOBITEL
24835      286         80           8   RAYA Telecom - Egypt
 3741      262        905         223   The Internet Solution 
33776      228         12          19   Starcomms Nigeria Limited
12258      197         28          62   Vodacom Internet Company 
29975      191        667          21   Vodacom
15706      177         32           6   Sudatel Internet Exchange Aut

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     3443        986         155   Windstream Communications Inc
 6389     3343       3773         191   bellsouth.net, inc. 
 4766     2760      11123        1253   Korea Telecom (KIX)
17974     2291        702          54   PT TELEKOMUNIKASI INDONESIA
18566     2088        382         181   Covad Communications 
10620     2036        350         211   TVCABLE BOGOTA 
28573     2026       1228          58   NET Servicos de Comunicao S.A
 1785     1946        681         131   PaeTec Communications, Inc.
 7545     1710        301          86   TPG Internet Pty Ltd
22773     1699       2914         125   Cox Communications, Inc.

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      3343        3152      bellsouth.net, inc. 
17974      2291        2237      PT TELEKOMUNIKASI INDONESIA
28573      2026        1968      NET Servicos de Comunicao S.A
18566      2088        1907      Covad Communications 
10620      2036        1825      TVCABLE BOGOTA 
 1785      1946        1815      PaeTec Communications, Inc.
 7545      1710        1624      TPG Internet Pty Ltd
22773      1699        1574      Cox Communications, Inc.
 8402      1569        1553      Corbina telecom
 4766      2760        1507      Korea Telecom (KIX)

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

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

Bad AS  Designation  Network              Transit AS  Description
59414   UNALLOCATED  5.102.144.0/21       15576       Nextra backbone in D
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH
59457   UNALLOCATED  5.149.64.0/24        35567       DASTO semtel d.o.o.
59457   UNALLOCATED  5.149.65.0/24        35567       DASTO semtel d.o.o.
59457   UNALLOCATED  5.149.67.0/24        35567       DASTO semtel d.o.o.
59457   UNALLOCATED  5.149.68.0/24        35567       DASTO semtel d.o.o.
59457   UNALLOCATED  5.149.71.0/24        35567       DASTO semtel d.o.o.
59458   UNALLOCATED  5.149.96.0/21        50597       ScopeSky Communicati
59458   UNALLOCATED  5.149.104.0/22       50597       ScopeSky Communicati
59473   UNALLOCATED  5.149.152.0/22       44843       AmsterdamTelecom Ltd

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

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

Network            Origin AS  Description
5.175.80.0/21        47886     Equinix Netherlands IP Platfo
5.175.128.0/17       12586     GHOSTnet
5.178.24.0/21        21191     SeverTransTeleCom Autonomous 
14.192.0.0/22        45464     Room 201, TGU Bldg
14.192.4.0/22        45464     Room 201, TGU Bldg
14.192.8.0/22        45464     Room 201, TGU Bldg
14.192.12.0/22       45464     Room 201, TGU Bldg
14.192.16.0/22       45464     Room 201, TGU Bldg
14.192.20.0/22       45464     Room 201, TGU Bldg
14.192.24.0/22       45464     Room 201, TGU Bldg

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        /8:19       /9:12      /10:28      /11:82      /12:236     
/13:474     /14:848     /15:1529    /16:12336   /17:6372    /18:10753   
/19:20953   /20:29981   /21:31860   /22:41601   /23:39706   /24:220602  
/25:1282    /26:1504    /27:852     /28:164     /29:61      /30:18      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
 7029     2802          3443      Windstream Communications Inc
18566     2038          2088      Covad Communications 
 6389     1835          3343      bellsouth.net, inc. 
30036     1366          1431      Mediacom Communications Corp 
 8402     1266          1569      Corbina telecom
15557     1159          1215      LDCOM NETWORKS
11492     1154          1191      Cable One 
22773     1123          1699      Cox Communications, Inc.
 1785     1053          1946      PaeTec Communications, Inc.
 6503     1050          1527      AVANTEL, S.A. 

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

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

   1:558       2:704       3:1         4:13        5:299       6:3      
   8:439      12:2003     13:1        14:632      15:11       16:3      
  17:6        20:24       23:204      24:1800     27:1327     31:1024   
  32:56       33:2        34:2        36:8        37:664      38:821    
  39:1        40:134      41:2838     42:158      44:3        46:1554   
  47:2        49:427      50:576      52:13       54:14       55:8      
  56:1        57:31       58:986      59:510      60:236      61:1284   
  62:974      63:2028     64:4246     65:2250     66:4532     67:2037   
  68:1152     69:3204     70:986      71:520      72:1867     74:2608   
  75:489      76:332      77:951      78:946      79:497      80:1275   
  81:945      82:640      83:541      84:619      85:1147     86:797    
  87:932      88:353      89:1794     90:305      91:5067     92:588    
  93:1452     94:1557     95:1278     96:400      97:318      98:903    
  99:39      100:22      101:257     103:1341    105:464     106:112    
 107:189     108:413     109:1911    110:795     111:947     112:434    
 113:676     114:687     115:858     116:930     117:735     118:944    
 119:1236    120:360     121:696     122:1677    123:1162    124:1378   
 125:1265    128:555     129:183     130:267     131:640     132:297    
 133:22      134:245     135:61      136:216     137:240     138:342    
 139:183     140:496     141:258     142:451     143:374     144:496    
 145:78      146:510     147:290     148:770     149:319     150:150    
 151:186     152:473     153:175     154:19      155:405     156:222    
 157:381     158:191     159:630     160:348     161:386     162:385    
 163:190     164:675     165:411     166:577     167:533     168:963    
 169:126     170:899     171:147     172:5       173:1739    174:628    
 175:432     176:570     177:1003    178:1657    180:1327    181:115    
 182:1030    183:233     184:572     186:2069    187:1115    188:1338   
 189:1588    190:6176    192:6026    193:5444    194:4198    195:3264   
 196:1231    197:201     198:3695    199:4945    200:6015    201:1981   
 202:8728    203:8694    204:4393    205:2534    206:2796    207:2861   
 208:4042    209:3631    210:2761    211:1548    212:2010    213:1808   
 214:878     215:86      216:5083    217:1555    218:561     219:315    
 220:1239    221:570     222:336     223:372    

End of report


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