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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 18 Aug 2012 04:50:44 +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 18 Aug, 2012

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

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

BGP routing table entries examined:                              422243
    Prefixes after maximum aggregation:                          177415
    Deaggregation factor:                                          2.38
    Unique aggregates announced to Internet:                     204508
Total ASes present in the Internet Routing Table:                 41840
    Prefixes per ASN:                                             10.09
Origin-only ASes present in the Internet Routing Table:           33461
Origin ASes announcing only one prefix:                           15721
Transit ASes present in the Internet Routing Table:                5622
Transit-only ASes present in the Internet Routing Table:            138
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:               544
    Unregistered ASNs in the Routing Table:                         179
Number of 32-bit ASNs allocated by the RIRs:                       3133
Number of 32-bit ASNs visible in the Routing Table:                2757
Prefixes from 32-bit ASNs in the Routing Table:                    7094
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            173
Number of addresses announced to Internet:                   2591522956
    Equivalent to 154 /8s, 119 /16s and 128 /24s
    Percentage of available address space announced:               69.9
    Percentage of allocated address space announced:               70.0
    Percentage of available address space allocated:               99.9
    Percentage of address space in use by end-sites:               93.2
Total number of prefixes smaller than registry allocations:      148724

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

Prefixes being announced by APNIC Region ASes:                   101840
    Total APNIC prefixes after maximum aggregation:               32662
    APNIC Deaggregation factor:                                    3.12
Prefixes being announced from the APNIC address blocks:          102409
    Unique aggregates announced from the APNIC address blocks:    42280
APNIC Region origin ASes present in the Internet Routing Table:    4733
    APNIC Prefixes per ASN:                                       21.64
APNIC Region origin ASes announcing only one prefix:               1244
APNIC Region transit ASes present in the Internet Routing Table:    762
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:    282
Number of APNIC addresses announced to Internet:              708149376
    Equivalent to 42 /8s, 53 /16s and 128 /24s
    Percentage of available APNIC address space announced:         82.8

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:                    153791
    Total ARIN prefixes after maximum aggregation:                77875
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           154799
    Unique aggregates announced from the ARIN address blocks:     68795
ARIN Region origin ASes present in the Internet Routing Table:    15221
    ARIN Prefixes per ASN:                                        10.17
ARIN Region origin ASes announcing only one prefix:                5753
ARIN Region transit ASes present in the Internet Routing Table:    1610
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:      17
Number of ARIN addresses announced to Internet:              1084328576
    Equivalent to 64 /8s, 161 /16s and 138 /24s
    Percentage of available ARIN address space announced:          57.4

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:                    106635
    Total RIPE prefixes after maximum aggregation:                56204
    RIPE Deaggregation factor:                                     1.90
Prefixes being announced from the RIPE address blocks:           108860
    Unique aggregates announced from the RIPE address blocks:     67735
RIPE Region origin ASes present in the Internet Routing Table:    16773
    RIPE Prefixes per ASN:                                         6.49
RIPE Region origin ASes announcing only one prefix:                8129
RIPE Region transit ASes present in the Internet Routing Table:    2721
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:    1798
Number of RIPE addresses announced to Internet:               642798564
    Equivalent to 38 /8s, 80 /16s and 83 /24s
    Percentage of available RIPE address space announced:          93.4

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:                   43108
    Total LACNIC prefixes after maximum aggregation:               8424
    LACNIC Deaggregation factor:                                   5.12
Prefixes being announced from the LACNIC address blocks:          45921
    Unique aggregates announced from the LACNIC address blocks:   22114
LACNIC Region origin ASes present in the Internet Routing Table:   1627
    LACNIC Prefixes per ASN:                                      28.22
LACNIC Region origin ASes announcing only one prefix:               425
LACNIC Region transit ASes present in the Internet Routing Table:   318
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:   654
Number of LACNIC addresses announced to Internet:             114227624
    Equivalent to 6 /8s, 206 /16s and 249 /24s
    Percentage of available LACNIC address space announced:        68.1

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:                   9625
    Total AfriNIC prefixes after maximum aggregation:              2192
    AfriNIC Deaggregation factor:                                  4.39
Prefixes being announced from the AfriNIC address blocks:         10081
    Unique aggregates announced from the AfriNIC address blocks:   3441
AfriNIC Region origin ASes present in the Internet Routing Table:   556
    AfriNIC Prefixes per ASN:                                     18.13
AfriNIC Region origin ASes announcing only one prefix:              170
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:             41662208
    Equivalent to 2 /8s, 123 /16s and 183 /24s
    Percentage of available AfriNIC address space announced:       41.4

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      11117        1249   Korea Telecom (KIX)
17974     2342        702          54   PT TELEKOMUNIKASI INDONESIA
 7545     1715        301          87   TPG Internet Pty Ltd
 4755     1607        386         158   TATA Communications formerly 
 9829     1312       1084          31   BSNL National Internet Backbo
 9583     1170         86         509   Sify Limited
 4808     1133       2055         326   CNCGROUP IP network: China169
 7552     1104       1062          11   Vietel Corporation
24560     1040        386         160   Bharti Airtel Ltd., Telemedia
 9498      998        294          74   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     3441        990         154   Windstream Communications Inc
 6389     3368       3772         191   bellsouth.net, inc. 
18566     2087        382         180   Covad Communications 
 1785     1939        680         128   PaeTec Communications, Inc.
22773     1726       2914         127   Cox Communications, Inc.
20115     1647       1572         611   Charter Communications 
 4323     1575       1026         386   Time Warner Telecom
30036     1456        290         775   Mediacom Communications Corp 
 7018     1237      10022         807   AT&T WorldNet Services
11492     1194        217         348   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     1530        544          16   Corbina telecom
15557     1216       2247          55   LDCOM NETWORKS
12479      827        764          85   Uni2 Autonomous System
34984      750        189         175   BILISIM TELEKOM
 6830      715       2311         446   UPC Distribution Services
20940      709        229         550   Akamai Technologies European 
31148      708         37           9   FreeNet ISP
 2118      685         97          14   EUnet/RELCOM Autonomous Syste
13188      657        100           9   Educational Network
58113      616         69         362   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
10620     2085        354         216   TVCABLE BOGOTA 
28573     1999       1242          55   NET Servicos de Comunicao S.A
 7303     1563       1033         200   Telecom Argentina Stet-France
 6503     1530        435          68   AVANTEL, S.A. 
 8151     1474       3038         342   UniNet S.A. de C.V. 
 6458      883         81          15   GUATEL 
27947      715         74          95   Telconet S.A
 3816      602        255          90   Empresa Nacional de Telecomun
11172      591         85          70   Servicios Alestra S.A de C.V 
22047      580        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      893        958          13   TEDATA
24863      869        275          36   LINKdotNET AS number
36998      532         48           3   MOBITEL
 6713      517        650          19   Itissalat Al-MAGHRIB
24835      286         80           8   RAYA Telecom - Egypt
 3741      262        904         223   The Internet Solution 
12258      195         28          62   Vodacom Internet Company 
33776      194         13          11   Starcomms Nigeria Limited
15706      193         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom

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     3441        990         154   Windstream Communications Inc
 6389     3368       3772         191   bellsouth.net, inc. 
 4766     2760      11117        1249   Korea Telecom (KIX)
17974     2342        702          54   PT TELEKOMUNIKASI INDONESIA
18566     2087        382         180   Covad Communications 
10620     2085        354         216   TVCABLE BOGOTA 
28573     1999       1242          55   NET Servicos de Comunicao S.A
 1785     1939        680         128   PaeTec Communications, Inc.
22773     1726       2914         127   Cox Communications, Inc.
 7545     1715        301          87   TPG Internet Pty Ltd

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      3368        3177      bellsouth.net, inc. 
17974      2342        2288      PT TELEKOMUNIKASI INDONESIA
28573      1999        1944      NET Servicos de Comunicao S.A
18566      2087        1907      Covad Communications 
10620      2085        1869      TVCABLE BOGOTA 
 1785      1939        1811      PaeTec Communications, Inc.
 7545      1715        1628      TPG Internet Pty Ltd
22773      1726        1599      Cox Communications, Inc.
 8402      1530        1514      Corbina telecom
 4766      2760        1511      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
59395   UNALLOCATED  5.133.16.0/21        12658       Dexterity Networks L
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH
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.
59457   UNALLOCATED  5.149.71.0/24        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        /8:20       /9:14      /10:29      /11:84      /12:237     
/13:475     /14:846     /15:1531    /16:12360   /17:6383    /18:10784   
/19:21006   /20:30060   /21:31926   /22:41885   /23:39735   /24:220985  
/25:1257    /26:1502    /27:849     /28:171     /29:62      /30:18      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
 7029     2801          3441      Windstream Communications Inc
18566     2037          2087      Covad Communications 
 6389     1856          3368      bellsouth.net, inc. 
30036     1390          1456      Mediacom Communications Corp 
 8402     1258          1530      Corbina telecom
15557     1160          1216      LDCOM NETWORKS
11492     1157          1194      Cable One 
22773     1132          1726      Cox Communications, Inc.
 6503     1051          1530      AVANTEL, S.A. 
 1785     1041          1939      PaeTec Communications, Inc.

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

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

   1:563       2:739       3:1         4:13        5:353       6:3      
   8:441      12:2010     13:1        14:641      15:11       16:3      
  17:6        20:26       23:201      24:1801     27:1329     31:1031   
  32:56       33:2        34:2        36:8        37:732      38:823    
  39:1        40:133      41:2848     42:156      44:3        46:1577   
  47:2        49:436      50:583      52:13       54:15       55:6      
  56:1        57:31       58:986      59:517      60:239      61:1283   
  62:991      63:2013     64:4264     65:2246     66:4539     67:2053   
  68:1158     69:3212     70:987      71:522      72:1866     74:2606   
  75:490      76:330      77:946      78:911      79:499      80:1271   
  81:955      82:634      83:535      84:622      85:1139     86:805    
  87:935      88:347      89:1812     90:301      91:5107     92:591    
  93:1473     94:1583     95:1272     96:407      97:317      98:897    
  99:39      100:22      101:257     103:1389    105:512     106:113    
 107:193     108:428     109:1907    110:796     111:954     112:425    
 113:678     114:656     115:841     116:881     117:726     118:942    
 119:1249    120:300     121:694     122:1656    123:1169    124:1354   
 125:1265    128:522     129:185     130:275     131:636     132:298    
 133:22      134:246     135:61      136:216     137:239     138:338    
 139:185     140:501     141:269     142:483     143:359     144:488    
 145:78      146:510     147:254     148:781     149:300     150:155    
 151:186     152:457     153:175     154:20      155:412     156:225    
 157:381     158:178     159:637     160:345     161:411     162:401    
 163:189     164:685     165:413     166:565     167:534     168:954    
 169:125     170:910     171:145     172:5       173:1726    174:634    
 175:437     176:603     177:1004    178:1679    180:1338    181:123    
 182:1035    183:227     184:589     186:2069    187:1130    188:1464   
 189:1573    190:6153    192:6015    193:5456    194:4234    195:3261   
 196:1230    197:202     198:3708    199:4913    200:6027    201:1968   
 202:8706    203:8645    204:4398    205:2534    206:2813    207:2855   
 208:4041    209:3637    210:2770    211:1539    212:2015    213:1802   
 214:876     215:85      216:5113    217:1553    218:547     219:316    
 220:1240    221:529     222:335     223:376    

End of report


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