Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 28 18:51:47 UTC 2012


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 29 Sep, 2012

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

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

BGP routing table entries examined:                              427331
    Prefixes after maximum aggregation:                          178718
    Deaggregation factor:                                          2.39
    Unique aggregates announced to Internet:                     209290
Total ASes present in the Internet Routing Table:                 42215
    Prefixes per ASN:                                             10.12
Origin-only ASes present in the Internet Routing Table:           33672
Origin ASes announcing only one prefix:                           15754
Transit ASes present in the Internet Routing Table:                5612
Transit-only ASes present in the Internet Routing Table:            141
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      35
    Max AS path prepend of ASN ( 48687)                              24
Prefixes from unregistered ASNs in the Routing Table:               769
    Unregistered ASNs in the Routing Table:                         279
Number of 32-bit ASNs allocated by the RIRs:                       3336
Number of 32-bit ASNs visible in the Routing Table:                2931
Prefixes from 32-bit ASNs in the Routing Table:                    7916
Special use prefixes present in the Routing Table:                   12
Prefixes being announced from unallocated address space:            164
Number of addresses announced to Internet:                   2601743212
    Equivalent to 155 /8s, 19 /16s and 115 /24s
    Percentage of available address space announced:               70.3
    Percentage of allocated address space announced:               70.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               93.7
Total number of prefixes smaller than registry allocations:      150222

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

Prefixes being announced by APNIC Region ASes:                   102740
    Total APNIC prefixes after maximum aggregation:               32571
    APNIC Deaggregation factor:                                    3.15
Prefixes being announced from the APNIC address blocks:          103414
    Unique aggregates announced from the APNIC address blocks:    42743
APNIC Region origin ASes present in the Internet Routing Table:    4766
    APNIC Prefixes per ASN:                                       21.70
APNIC Region origin ASes announcing only one prefix:               1237
APNIC Region transit ASes present in the Internet Routing Table:    773
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:    315
Number of APNIC addresses announced to Internet:              708388512
    Equivalent to 42 /8s, 57 /16s and 38 /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:                    154519
    Total ARIN prefixes after maximum aggregation:                78181
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           155430
    Unique aggregates announced from the ARIN address blocks:     69144
ARIN Region origin ASes present in the Internet Routing Table:    15250
    ARIN Prefixes per ASN:                                        10.19
ARIN Region origin ASes announcing only one prefix:                5766
ARIN Region transit ASes present in the Internet Routing Table:    1586
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1087029632
    Equivalent to 64 /8s, 202 /16s and 193 /24s
    Percentage of available ARIN address space announced:          57.5

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:                    108275
    Total RIPE prefixes after maximum aggregation:                57184
    RIPE Deaggregation factor:                                     1.89
Prefixes being announced from the RIPE address blocks:           110843
    Unique aggregates announced from the RIPE address blocks:     71392
RIPE Region origin ASes present in the Internet Routing Table:    16872
    RIPE Prefixes per ASN:                                         6.57
RIPE Region origin ASes announcing only one prefix:                8127
RIPE Region transit ASes present in the Internet Routing Table:    2714
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1906
Number of RIPE addresses announced to Internet:               647248932
    Equivalent to 38 /8s, 148 /16s and 60 /24s
    Percentage of available RIPE address space announced:          94.1

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:                   43973
    Total LACNIC prefixes after maximum aggregation:               8501
    LACNIC Deaggregation factor:                                   5.17
Prefixes being announced from the LACNIC address blocks:          47221
    Unique aggregates announced from the LACNIC address blocks:   22344
LACNIC Region origin ASes present in the Internet Routing Table:   1660
    LACNIC Prefixes per ASN:                                      28.45
LACNIC Region origin ASes announcing only one prefix:               450
LACNIC Region transit ASes present in the Internet Routing Table:   321
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:   687
Number of LACNIC addresses announced to Internet:             116918824
    Equivalent to 6 /8s, 248 /16s and 10 /24s
    Percentage of available LACNIC address space announced:        69.7

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:                   9784
    Total AfriNIC prefixes after maximum aggregation:              2224
    AfriNIC Deaggregation factor:                                  4.40
Prefixes being announced from the AfriNIC address blocks:         10259
    Unique aggregates announced from the AfriNIC address blocks:   3532
AfriNIC Region origin ASes present in the Internet Routing Table:   562
    AfriNIC Prefixes per ASN:                                     18.25
AfriNIC Region origin ASes announcing only one prefix:              174
AfriNIC Region transit ASes present in the Internet Routing Table:  128
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             41850880
    Equivalent to 2 /8s, 126 /16s and 152 /24s
    Percentage of available AfriNIC address space announced:       41.6

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
 4766     2979      11428         904   Korea Telecom (KIX)
17974     2356        702          54   PT TELEKOMUNIKASI INDONESIA
 7545     1762        301          87   TPG Internet Pty Ltd
 4755     1624        387         163   TATA Communications formerly 
 9829     1332       1106          41   BSNL National Internet Backbo
 9583     1181         88         515   Sify Limited
 4808     1124       2046         319   CNCGROUP IP network: China169
 7552     1108       1062          11   Vietel Corporation
24560     1039        386         160   Bharti Airtel Ltd., Telemedia
18101     1016        135         169   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     3291       3730         177   bellsouth.net, inc. 
 7029     3164        990         161   Windstream Communications Inc
18566     2084        382         180   Covad Communications 
 1785     1918        678         128   PaeTec Communications, Inc.
22773     1888       2931         128   Cox Communications, Inc.
20115     1656       1581         617   Charter Communications 
 4323     1576       1153         387   Time Warner Telecom
30036     1365        272         751   Mediacom Communications Corp 
 7018     1262      10320         840   AT&T WorldNet Services
 7011     1205        329         699   Citizens Utilities 

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8402     1726        544          16   Corbina telecom
 2118     1399         97          14   EUnet/RELCOM Autonomous Syste
12479      846        775          74   Uni2 Autonomous System
34984      782        206         181   BILISIM TELEKOM
 6830      724       2313         448   UPC Distribution Services
31148      711         37           9   FreeNet ISP
13188      694         92         153   Educational Network
20940      691        219         531   Akamai Technologies European 
58113      631         70         366   LIR DATACENTER TELECOM SRL
 8551      575        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     2190        376         218   TVCABLE BOGOTA 
28573     2141       1251          56   NET Servicos de Comunicao S.A
 8151     1594       3045         346   UniNet S.A. de C.V. 
 7303     1561       1034         199   Telecom Argentina Stet-France
 6503     1536        435          68   AVANTEL, S.A. 
27947      724         74          91   Telconet S.A
 3816      642        309          53   Empresa Nacional de Telecomun
 6458      601         81          15   GUATEL 
11172      590         85          69   Servicios Alestra S.A de C.V 
14420      588         87         102   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
24863      865        275          36   LINKdotNET AS number
 8452      784        958          13   TEDATA
36998      772         48           3   MOBITEL
 6713      517        650          19   Itissalat Al-MAGHRIB
24835      269         80           8   RAYA Telecom - Egypt
 3741      264        904         224   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      192         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
33776      189         12          13   Starcomms Nigeria Limited

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     3291       3730         177   bellsouth.net, inc. 
 7029     3164        990         161   Windstream Communications Inc
 4766     2979      11428         904   Korea Telecom (KIX)
17974     2356        702          54   PT TELEKOMUNIKASI INDONESIA
10620     2190        376         218   TVCABLE BOGOTA 
28573     2141       1251          56   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
 1785     1918        678         128   PaeTec Communications, Inc.
22773     1888       2931         128   Cox Communications, Inc.
 7545     1762        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
 7029      3164        3003      Windstream Communications Inc
17974      2356        2302      PT TELEKOMUNIKASI INDONESIA
28573      2141        2085      NET Servicos de Comunicao S.A
 4766      2979        2075      Korea Telecom (KIX)
10620      2190        1972      TVCABLE BOGOTA 
18566      2084        1904      Covad Communications 
 1785      1918        1790      PaeTec Communications, Inc.
22773      1888        1760      Cox Communications, Inc.
 8402      1726        1710      Corbina telecom
 7545      1762        1675      TPG Internet Pty Ltd

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

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

Bad AS  Designation  Network              Transit AS  Description
59505   UNALLOCATED  5.2.65.0/24          50673       Serverius AS
59505   UNALLOCATED  5.2.66.0/24          50673       Serverius AS
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
59441   UNALLOCATED  5.144.128.0/21       50810       Mobin Net Communicat
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  5.149.64.0/19        35567       DASTO semtel d.o.o.

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

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

Prefix             Origin AS  Description
128.0.24.0/21        41794     Altline LLC
128.0.64.0/22        49466     Declic Telecom SAS
128.0.68.0/22        49466     Declic Telecom SAS
128.0.80.0/20        52041     Timer LTD
128.0.104.0/23       51848     FOP Gabidullina Ludmila Nikol
128.0.128.0/20       29285     AMT closed joint-stock compan
128.0.144.0/22       59675     >>UNKNOWN<<
128.0.160.0/21       23456     32-bit ASN transition
128.0.168.0/21       15772     W-NET Kiev
128.0.170.0/24       24685     ISP Elencom autonomous system

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
27.112.114.0/24      23884     Proimage Engineering and Comm
41.220.80.0/24       38925     DAC AS Germany

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       /9:14      /10:29      /11:87      /12:240     
/13:477     /14:846     /15:1546    /16:12409   /17:6482    /18:10858   
/19:21073   /20:30287   /21:32307   /22:42709   /23:40047   /24:223626  
/25:1395    /26:1680    /27:914     /28:179     /29:66      /30:18      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
 7029     2647          3164      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1838          3291      bellsouth.net, inc. 
 8402     1438          1726      Corbina telecom
30036     1299          1365      Mediacom Communications Corp 
22773     1229          1888      Cox Communications, Inc.
11492     1164          1201      Cable One 
 6503     1054          1536      AVANTEL, S.A. 
 1785     1016          1918      PaeTec Communications, Inc.
 7011      944          1205      Citizens Utilities 

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

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

   1:621       2:668       3:1         4:13        5:544       6:3      
   8:463      12:1985     13:1        14:666      15:11       16:3      
  17:6        20:27       23:202      24:1786     27:1345     31:1023   
  32:54       33:2        34:2        36:7        37:821      38:829    
  39:2        40:133      41:3032     42:159      44:3        46:1602   
  47:2        49:469      50:594      52:13       54:22       55:9      
  56:1        57:27       58:990      59:541      60:238      61:1290   
  62:938      63:1982     64:4271     65:2242     66:4512     67:2090   
  68:1165     69:3235     70:988      71:509      72:1871     74:2592   
  75:485      76:314      77:968      78:961      79:495      80:1234   
  81:970      82:635      83:529      84:516      85:1159     86:491    
  87:927      88:364      89:1831     90:301      91:5230     92:596    
  93:1422     94:1638     95:1225     96:417      97:324      98:972    
  99:39      100:23      101:263     103:1578    105:512     106:118    
 107:199     108:464     109:1530    110:806     111:970     112:445    
 113:702     114:609     115:889     116:893     117:732     118:932    
 119:1214    120:335     121:690     122:1634    123:1165    124:1327   
 125:1277    128:563     129:190     130:282     131:634     132:309    
 133:22      134:251     135:61      136:219     137:239     138:337    
 139:170     140:498     141:279     142:486     143:387     144:488    
 145:81      146:517     147:264     148:750     149:325     150:154    
 151:192     152:451     153:178     154:20      155:420     156:224    
 157:373     158:258     159:659     160:344     161:411     162:363    
 163:191     164:694     165:423     166:527     167:553     168:966    
 169:126     170:908     171:167     172:6       173:1681    174:627    
 175:444     176:789     177:1243    178:1613    180:1340    181:140    
 182:1058    183:296     184:605     185:6       186:2193    187:1258   
 188:1697    189:1587    190:6053    192:6029    193:5727    194:4559   
 195:3478    196:1219    197:225     198:3818    199:5024    200:6023   
 201:1990    202:8712    203:8719    204:4423    205:2536    206:2755   
 207:2856    208:4068    209:3659    210:2853    211:1529    212:1988   
 213:1819    214:892     215:87      216:5118    217:1570    218:569    
 219:313     220:1251    221:532     222:337     223:403    

End of report



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