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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 25 Aug 2012 04:33:55 +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 25 Aug, 2012

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

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

BGP routing table entries examined:                              264582
    Prefixes after maximum aggregation:                           97761
    Deaggregation factor:                                          2.71
    Unique aggregates announced to Internet:                     119633
Total ASes present in the Internet Routing Table:                 29036
    Prefixes per ASN:                                              9.11
Origin-only ASes present in the Internet Routing Table:           22245
Origin ASes announcing only one prefix:                           11565
Transit ASes present in the Internet Routing Table:                4486
Transit-only ASes present in the Internet Routing Table:            492
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      32
    Max AS path prepend of ASN ( 48687)                              24
Prefixes from unregistered ASNs in the Routing Table:               435
    Unregistered ASNs in the Routing Table:                         144
Number of 32-bit ASNs allocated by the RIRs:                       3169
Number of 32-bit ASNs visible in the Routing Table:                2305
Prefixes from 32-bit ASNs in the Routing Table:                    6164
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             74
Number of addresses announced to Internet:                   2132781732
    Equivalent to 127 /8s, 31 /16s and 170 /24s
    Percentage of available address space announced:               57.5
    Percentage of allocated address space announced:               57.6
    Percentage of available address space allocated:               99.9
    Percentage of address space in use by end-sites:               93.3
Total number of prefixes smaller than registry allocations:      117536

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

Prefixes being announced by APNIC Region ASes:                    59813
    Total APNIC prefixes after maximum aggregation:               15336
    APNIC Deaggregation factor:                                    3.90
Prefixes being announced from the APNIC address blocks:           60438
    Unique aggregates announced from the APNIC address blocks:    22879
APNIC Region origin ASes present in the Internet Routing Table:    2883
    APNIC Prefixes per ASN:                                       20.96
APNIC Region origin ASes announcing only one prefix:                806
APNIC Region transit ASes present in the Internet Routing Table:    609
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:    242
Number of APNIC addresses announced to Internet:              551407040
    Equivalent to 32 /8s, 221 /16s and 205 /24s
    Percentage of available APNIC address space announced:         64.4

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:                     96228
    Total ARIN prefixes after maximum aggregation:                43322
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:            97518
    Unique aggregates announced from the ARIN address blocks:     38278
ARIN Region origin ASes present in the Internet Routing Table:    10585
    ARIN Prefixes per ASN:                                         9.21
ARIN Region origin ASes announcing only one prefix:                4892
ARIN Region transit ASes present in the Internet Routing Table:    1244
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:       7
Number of ARIN addresses announced to Internet:               937035712
    Equivalent to 55 /8s, 218 /16s and 7 /24s
    Percentage of available ARIN address space announced:          49.6

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:                     74529
    Total RIPE prefixes after maximum aggregation:                34410
    RIPE Deaggregation factor:                                     2.17
Prefixes being announced from the RIPE address blocks:            76326
    Unique aggregates announced from the RIPE address blocks:     45907
RIPE Region origin ASes present in the Internet Routing Table:    11345
    RIPE Prefixes per ASN:                                         6.73
RIPE Region origin ASes announcing only one prefix:                5497
RIPE Region transit ASes present in the Internet Routing Table:    2197
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1423
Number of RIPE addresses announced to Internet:               548373764
    Equivalent to 32 /8s, 175 /16s and 133 /24s
    Percentage of available RIPE address space announced:          79.7

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:                   20998
    Total LACNIC prefixes after maximum aggregation:               3524
    LACNIC Deaggregation factor:                                   5.96
Prefixes being announced from the LACNIC address blocks:          23232
    Unique aggregates announced from the LACNIC address blocks:   10439
LACNIC Region origin ASes present in the Internet Routing Table:   1009
    LACNIC Prefixes per ASN:                                      23.02
LACNIC Region origin ASes announcing only one prefix:               258
LACNIC Region transit ASes present in the Internet Routing Table:   243
Average LACNIC Region AS path length visible:                       4.5
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   630
Number of LACNIC addresses announced to Internet:              72150560
    Equivalent to 4 /8s, 76 /16s and 238 /24s
    Percentage of available LACNIC address space announced:        43.0

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:                   6759
    Total AfriNIC prefixes after maximum aggregation:              1134
    AfriNIC Deaggregation factor:                                  5.96
Prefixes being announced from the AfriNIC address blocks:          6994
    Unique aggregates announced from the AfriNIC address blocks:   2064
AfriNIC Region origin ASes present in the Internet Routing Table:   392
    AfriNIC Prefixes per ASN:                                     17.84
AfriNIC Region origin ASes announcing only one prefix:              112
AfriNIC Region transit ASes present in the Internet Routing Table:   94
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:    3
Number of AfriNIC addresses announced to Internet:             23734528
    Equivalent to 1 /8s, 106 /16s and 41 /24s
    Percentage of available AfriNIC address space announced:       23.6

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
17974     2051        678          47   PT TELEKOMUNIKASI INDONESIA
 9829     1271       1068          25   BSNL National Internet Backbo
 7545     1252        217          20   TPG Internet Pty Ltd
 4766     1140       8409         574   Korea Telecom (KIX)
 4755     1113        310          98   TATA Communications formerly 
 7552     1066       1054           9   Vietel Corporation
24560     1017        384         140   Bharti Airtel Ltd., Telemedia
 9498      884        276          49   BHARTI Airtel Ltd.
 4808      726       1581         181   CNCGROUP IP network: China169
17488      577        135         181   Hathway IP Over Cable Interne

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     2956        878          80   Windstream Communications Inc
 6389     2739       3537         137   bellsouth.net, inc. 
18566     1924        369         140   Covad Communications 
22773     1729       2908          64   Cox Communications, Inc.
20115     1590       1568         569   Charter Communications 
30036     1445        284         732   Mediacom Communications Corp 
11492     1197        217         345   Cable One 
 7011     1157        311         676   Citizens Utilities 
 1785     1007        378          32   PaeTec Communications, Inc.
19262      952       4686         386   Verizon Global Networks 

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     1561        538          12   Corbina telecom
15557     1182       2232          27   LDCOM NETWORKS
12479      818        759          79   Uni2 Autonomous System
20940      692        226         534   Akamai Technologies European 
31148      678         35           6   FreeNet ISP
13188      656        100           8   Educational Network
58113      613         69         359   LIR DATACENTER TELECOM SRL
 8551      528        336          40   Bezeq International
34984      386        131          63   BILISIM TELEKOM
 6830      379       2066         213   UPC Distribution Services

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     1780       1042          32   NET Servicos de Comunicao S.A
 6503     1113        360          18   AVANTEL, S.A. 
10620     1107        221         152   TVCABLE BOGOTA 
 8151     1064       2424         191   UniNet S.A. de C.V. 
 7303      997        761         111   Telecom Argentina Stet-France
18881      528        576          11   Global Village Telecom 
27747      448        104           4   Telecentro S.A.
27947      423         54          65   Telconet S.A
 7738      368        704          12   Telecomunicacoes da Bahia S.A
14420      348         61          64   CORPORACION NACIONAL DE TELEC

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      855        402           8   TEDATA
24863      663        125          28   LINKdotNET AS number
36998      534         48           3   MOBITEL
 6713      412        539          11   Itissalat Al-MAGHRIB
24835      213         44           5   RAYA Telecom - Egypt
33776      190         12          10   Starcomms Nigeria Limited
29975      172        665          17   Vodacom
12258      142         14          51   Vodacom Internet Company 
36923      138         20           4   Swift Networks Limited
29571      130         11          17   Ci Telecom Autonomous system 

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     2956        878          80   Windstream Communications Inc
 6389     2739       3537         137   bellsouth.net, inc. 
17974     2051        678          47   PT TELEKOMUNIKASI INDONESIA
18566     1924        369         140   Covad Communications 
28573     1780       1042          32   NET Servicos de Comunicao S.A
22773     1729       2908          64   Cox Communications, Inc.
20115     1590       1568         569   Charter Communications 
 8402     1561        538          12   Corbina telecom
30036     1445        284         732   Mediacom Communications Corp 
 9829     1271       1068          25   BSNL National Internet Backbo

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      2739        2602      bellsouth.net, inc. 
17974      2051        2004      PT TELEKOMUNIKASI INDONESIA
18566      1924        1784      Covad Communications 
28573      1780        1748      NET Servicos de Comunicao S.A
22773      1729        1665      Cox Communications, Inc.
 8402      1561        1549      Corbina telecom
 9829      1271        1246      BSNL National Internet Backbo
 7545      1252        1232      TPG Internet Pty Ltd
15557      1182        1155      LDCOM NETWORKS
 6503      1113        1095      AVANTEL, S.A. 

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
59395   UNALLOCATED  5.133.16.0/21        12658       Dexterity Networks L
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH
59521   UNALLOCATED  5.134.192.0/21       29518       Labs2
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  5.149.65.0/24        35567       DASTO semtel d.o.o.
59457   UNALLOCATED  5.149.66.0/24        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.

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

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

Network            Origin AS  Description
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
14.192.28.0/22       45464     Room 201, TGU Bldg
27.112.114.0/24      23884     Proimage Engineering and Comm
41.207.224.0/23      36898     UniNet Communications

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      /10:26      /11:74      /12:215     
/13:411     /14:694     /15:1253    /16:10162   /17:5045    /18:8043    
/19:13810   /20:22484   /21:23365   /22:28877   /23:25440   /24:122522  
/25:622     /26:961     /27:404     /28:89      /29:30      /30:7       
/31:0       /32:17      

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

  ASN   No of nets  Total ann.   Description
 7029     2468          2956      Windstream Communications Inc
18566     1890          1924      Covad Communications 
 6389     1534          2739      bellsouth.net, inc. 
30036     1381          1445      Mediacom Communications Corp 
 8402     1292          1561      Corbina telecom
22773     1167          1729      Cox Communications, Inc.
11492     1160          1197      Cable One 
15557     1156          1182      LDCOM NETWORKS
 7011      907          1157      Citizens Utilities 
 6503      857          1113      AVANTEL, S.A. 

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

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

   1:557       2:768       3:1         4:13        5:364       6:3      
   8:439      12:2006     13:1        14:647      15:11       16:3      
  17:6        20:27       23:204      24:1804     27:1324     31:1038   
  32:56       33:2        34:2        36:8        37:716      38:826    
  39:1        40:133      41:2852     42:155      44:3        46:1584   
  47:2        49:468      50:592      52:13       54:17       55:7      
  56:1        57:31       58:990      59:523      60:238      61:1284   
  62:991      63:2009     64:4264     65:2245     66:4520     67:2044   
  68:1157     69:3208     70:989      71:525      72:1861     74:2572   
  75:491      76:330      77:952      78:906      79:490      80:1276   
  81:956      82:633      83:534      84:622      85:1136     86:787    
  87:928      88:350      89:1809     90:301      91:5128     92:591    
  93:1481     94:1568     95:1268     96:414      97:317      98:892    
  99:39      100:23      101:261     103:1433    105:512     106:115    
 107:195     108:431     109:1908    110:795     111:956     112:430    
 113:686     114:652     115:847     116:888     117:729     118:934    
 119:1245    120:301     121:690     122:1657    123:1171    124:1356   
 125:1265    128:525     129:183     130:283     131:626     132:299    
 133:22      134:246     135:61      136:218     137:239     138:338    
 139:184     140:501     141:275     142:483     143:361     144:486    
 145:81      146:512     147:258     148:758     149:300     150:156    
 151:168     152:458     153:177     154:20      155:414     156:224    
 157:382     158:179     159:631     160:348     161:409     162:404    
 163:189     164:689     165:411     166:560     167:538     168:957    
 169:125     170:907     171:145     172:5       173:1717    174:632    
 175:440     176:603     177:1050    178:1692    180:1347    181:127    
 182:1037    183:223     184:590     186:2150    187:1078    188:1440   
 189:1545    190:1332   

End of report


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