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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 31 Dec 2011 05:24:54 +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,
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 31 Dec, 2011

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

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

BGP routing table entries examined:                              388032
    Prefixes after maximum aggregation:                          168367
    Deaggregation factor:                                          2.30
    Unique aggregates announced to Internet:                     190083
Total ASes present in the Internet Routing Table:                 39705
    Prefixes per ASN:                                              9.77
Origin-only ASes present in the Internet Routing Table:           32554
Origin ASes announcing only one prefix:                           15514
Transit ASes present in the Internet Routing Table:                5351
Transit-only ASes present in the Internet Routing Table:            137
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      33
    Max AS path prepend of ASN (56677)                               25
Prefixes from unregistered ASNs in the Routing Table:              1999
    Unregistered ASNs in the Routing Table:                        1030
Number of 32-bit ASNs allocated by the RIRs:                       2144
Number of 32-bit ASNs visible in the Routing Table:                1800
Prefixes from 32-bit ASNs in the Routing Table:                    4327
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:            112
Number of addresses announced to Internet:                   2504923696
    Equivalent to 149 /8s, 78 /16s and 26 /24s
    Percentage of available address space announced:               67.6
    Percentage of allocated address space announced:               67.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               91.8
Total number of prefixes smaller than registry allocations:      164463

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

Prefixes being announced by APNIC Region ASes:                    95928
    Total APNIC prefixes after maximum aggregation:               31403
    APNIC Deaggregation factor:                                    3.05
Prefixes being announced from the APNIC address blocks:           92286
    Unique aggregates announced from the APNIC address blocks:    38721
APNIC Region origin ASes present in the Internet Routing Table:    4619
    APNIC Prefixes per ASN:                                       19.98
APNIC Region origin ASes announcing only one prefix:               1249
APNIC Region transit ASes present in the Internet Routing Table:    729
Average APNIC Region AS path length visible:                        4.3
    Max APNIC Region AS path length visible:                         18
Number of APNIC region 32-bit ASNs visible in the Routing Table:    125
Number of APNIC addresses announced to Internet:              632494720
    Equivalent to 37 /8s, 179 /16s and 26 /24s
    Percentage of available APNIC address space announced:         80.2

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-132095, 132096-133119
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, 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:                    146775
    Total ARIN prefixes after maximum aggregation:                74964
    ARIN Deaggregation factor:                                     1.96
Prefixes being announced from the ARIN address blocks:           118927
    Unique aggregates announced from the ARIN address blocks:     48922
ARIN Region origin ASes present in the Internet Routing Table:    14816
    ARIN Prefixes per ASN:                                         8.03
ARIN Region origin ASes announcing only one prefix:                5673
ARIN Region transit ASes present in the Internet Routing Table:    1573
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:      14
Number of ARIN addresses announced to Internet:               804638400
    Equivalent to 47 /8s, 245 /16s and 206 /24s
    Percentage of available ARIN address space announced:          63.9

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, 173/8,
                       174/8, 184/8, 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:                     95203
    Total RIPE prefixes after maximum aggregation:                51822
    RIPE Deaggregation factor:                                     1.84
Prefixes being announced from the RIPE address blocks:            87230
    Unique aggregates announced from the RIPE address blocks:     55392
RIPE Region origin ASes present in the Internet Routing Table:    16223
    RIPE Prefixes per ASN:                                         5.38
RIPE Region origin ASes announcing only one prefix:                7980
RIPE Region transit ASes present in the Internet Routing Table:    2576
Average RIPE Region AS path length visible:                         4.7
    Max RIPE Region AS path length visible:                          33
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1256
Number of RIPE addresses announced to Internet:               495420104
    Equivalent to 29 /8s, 135 /16s and 130 /24s
    Percentage of available RIPE address space announced:          79.8

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
                       196608-198655
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,
                       176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
                       213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   37048
    Total LACNIC prefixes after maximum aggregation:               8031
    LACNIC Deaggregation factor:                                   4.61
Prefixes being announced from the LACNIC address blocks:          36595
    Unique aggregates announced from the LACNIC address blocks:   19051
LACNIC Region origin ASes present in the Internet Routing Table:   1561
    LACNIC Prefixes per ASN:                                      23.44
LACNIC Region origin ASes announcing only one prefix:               452
LACNIC Region transit ASes present in the Internet Routing Table:   285
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:   401
Number of LACNIC addresses announced to Internet:              95159432
    Equivalent to 5 /8s, 172 /16s and 4 /24s
    Percentage of available LACNIC address space announced:        63.0

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,
                       200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                   8588
    Total AfriNIC prefixes after maximum aggregation:              2072
    AfriNIC Deaggregation factor:                                  4.14
Prefixes being announced from the AfriNIC address blocks:          6623
    Unique aggregates announced from the AfriNIC address blocks:   2091
AfriNIC Region origin ASes present in the Internet Routing Table:   504
    AfriNIC Prefixes per ASN:                                     13.14
AfriNIC Region origin ASes announcing only one prefix:              160
AfriNIC Region transit ASes present in the Internet Routing Table:  112
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    4
Number of AfriNIC addresses announced to Internet:             30878464
    Equivalent to 1 /8s, 215 /16s and 43 /24s
    Percentage of available AfriNIC address space announced:       46.0

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2475      11101         972   Korea Telecom (KIX)
17974     1718        503          37   PT TELEKOMUNIKASI INDONESIA
 7545     1629        303          86   TPG Internet Pty Ltd
 4755     1516        385         157   TATA Communications formerly 
 7552     1412       1064           7   Vietel Corporation
 9583     1185         90         530   Sify Limited
 9829     1170        989          28   BSNL National Internet Backbo
 4808     1075       2034         308   CNCGROUP IP network: China169
24560     1004        383         163   Bharti Airtel Ltd., Telemedia
18101      974        131         156   Reliance Infocom Ltd Internet

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     3471       3814         220   bellsouth.net, inc. 
 7029     2917       1017         200   Windstream Communications Inc
18566     2094        383         177   Covad Communications 
 1785     1862        680         122   PaeTec Communications, Inc.
 4323     1623       1065         385   Time Warner Telecom
20115     1614       1550         623   Charter Communications 
22773     1517       2909         107   Cox Communications, Inc.
30036     1474        262         689   Mediacom Communications Corp 
19262     1389       4683         401   Verizon Global Networks 
 7018     1301       7012         855   AT&T WorldNet Services

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     1547        480          15   Corbina telecom
15557     1092       2161          64   LDCOM NETWORKS
 2118      672         99          14   EUnet/RELCOM Autonomous Syste
 6830      642       1928         413   UPC Distribution Services
34984      637        132         199   BILISIM TELEKOM
12479      552        636          53   Uni2 Autonomous System
20940      547        176         438   Akamai Technologies European 
 3320      532       8162         398   Deutsche Telekom AG
 3292      480       2106         407   TDC Tele Danmark
 8866      465        134          27   Bulgarian Telecommunication C

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     1721        319         159   TVCABLE BOGOTA 
28573     1569       1064          75   NET Servicos de Comunicao S.A
 8151     1453       2981         350   UniNet S.A. de C.V. 
 7303     1252        755         176   Telecom Argentina Stet-France
27947      634         73          95   Telconet S.A
22047      582        322          17   VTR PUNTO NET S.A. 
 7738      551       1050          31   Telecomunicacoes da Bahia S.A
 3816      548        237          91   Empresa Nacional de Telecomun
 6503      539        434          67   AVANTEL, S.A. 
11172      530         86          97   Servicios Alestra S.A de C.V 

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     1039        958          13   TEDATA
24863      793        146          36   LINKdotNET AS number
 3741      280        939         229   The Internet Solution 
 6713      250        649          18   Itissalat Al-MAGHRIB
15706      242         32           6   Sudatel Internet Exchange Aut
33776      240         13           8   Starcomms Nigeria Limited
29571      216         17          13   Ci Telecom Autonomous system 
12258      195         28          60   Vodacom Internet Company 
24835      189         80           8   RAYA Telecom - Egypt
16637      160        664          82   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     3471       3814         220   bellsouth.net, inc. 
 7029     2917       1017         200   Windstream Communications Inc
 4766     2475      11101         972   Korea Telecom (KIX)
18566     2094        383         177   Covad Communications 
 1785     1862        680         122   PaeTec Communications, Inc.
10620     1721        319         159   TVCABLE BOGOTA 
17974     1718        503          37   PT TELEKOMUNIKASI INDONESIA
 7545     1629        303          86   TPG Internet Pty Ltd
 4323     1623       1065         385   Time Warner Telecom
20115     1614       1550         623   Charter Communications 

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      2917        2717      Windstream Communications Inc
18566      2094        1917      Covad Communications 
 1785      1862        1740      PaeTec Communications, Inc.
17974      1718        1681      PT TELEKOMUNIKASI INDONESIA
10620      1721        1562      TVCABLE BOGOTA 
 7545      1629        1543      TPG Internet Pty Ltd
 8402      1547        1532      Corbina telecom
 4766      2475        1503      Korea Telecom (KIX)
28573      1569        1494      NET Servicos de Comunicao S.A
22773      1517        1410      Cox Communications, Inc.

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
32567   UNALLOCATED  12.14.170.0/24        4323       Time Warner Telecom
32567   UNALLOCATED  12.25.107.0/24        4323       Time Warner Telecom
25639   UNALLOCATED  12.41.169.0/24        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        7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
32873   UNALLOCATED  12.46.100.0/23       10912       InterNAP Network Ser

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

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

Prefix             Origin AS  Description
128.0.0.0/21         12654     RIPE NCC RIS Project
128.0.24.0/24        12654     RIPE NCC RIS Project

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

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
37.26.200.0/21       28748     AlphaCron Datensysteme AS
37.26.208.0/20       57660     >>UNKNOWN<<

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      /10:27      /11:81      /12:237     
/13:465     /14:813     /15:1451    /16:12081   /17:6120    /18:10185   
/19:20160   /20:27929   /21:28328   /22:38611   /23:35934   /24:201964  
/25:1183    /26:1402    /27:779     /28:166     /29:53      /30:14      
/31:0       /32:18      

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

  ASN   No of nets  Total ann.   Description
 7029     2545          2917      Windstream Communications Inc
 6389     2116          3471      bellsouth.net, inc. 
18566     2043          2094      Covad Communications 
10620     1616          1721      TVCABLE BOGOTA 
 8402     1526          1547      Corbina telecom
30036     1433          1474      Mediacom Communications Corp 
11492     1115          1152      Cable One 
 1785     1064          1862      PaeTec Communications, Inc.
 7011     1051          1168      Citizens Utilities 
15557     1042          1092      LDCOM NETWORKS

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

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

   1:478       2:414       4:15        5:1         6:3         8:366    
  12:1948     13:1        14:575      15:11       16:3        17:7      
  20:9        23:81       24:1712     27:1127     31:770      32:67     
  33:2        34:2        36:4        37:10       38:791      40:114    
  41:3018     42:82       43:1        44:3        46:1150     47:3      
  49:295      50:473      52:13       55:5        56:2        57:41     
  58:929      59:488      60:343      61:1173     62:936      63:1969   
  64:4123     65:2304     66:4375     67:1986     68:1165     69:3132   
  70:925      71:410      72:1785     74:2644     75:431      76:319    
  77:933      78:871      79:494      80:1190     81:842      82:533    
  83:530      84:563      85:1167     86:746      87:901      88:358    
  89:1588     90:261      91:4382     92:532      93:1515     94:1342   
  95:1051     96:396      97:288      98:766      99:38      100:18     
 101:124     103:588     106:11      107:120     108:101     109:1424   
 110:676     111:830     112:432     113:509     114:593     115:702    
 116:864     117:719     118:899     119:1223    120:365     121:676    
 122:1619    123:1036    124:1330    125:1347    128:532     129:189    
 130:189     131:585     132:162     133:21      134:226     135:54     
 136:206     137:151     138:285     139:126     140:491     141:257    
 142:381     143:392     144:501     145:67      146:476     147:221    
 148:633     149:271     150:165     151:192     152:444     153:169    
 154:7       155:382     156:210     157:365     158:153     159:505    
 160:346     161:221     162:335     163:188     164:522     165:390    
 166:546     167:455     168:807     169:146     170:828     171:95     
 172:4       173:1813    174:587     175:412     176:322     177:450    
 178:1151    180:1210    181:43      182:677     183:264     184:424    
 185:1       186:1462    187:797     188:1007    189:1177    190:5339   
 192:5974    193:5445    194:3787    195:3182    196:1289    197:174    
 198:3614    199:4239    200:5567    201:1685    202:8508    203:8524   
 204:4341    205:2421    206:2688    207:2822    208:4016    209:3562   
 210:2748    211:1474    212:1955    213:1807    214:808     215:93     
 216:4911    217:1467    218:567     219:338     220:1253    221:560    
 222:324     223:267    

End of report


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