Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 12 18:51:37 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 13 Oct, 2012

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

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

BGP routing table entries examined:                              428355
    Prefixes after maximum aggregation:                          179212
    Deaggregation factor:                                          2.39
    Unique aggregates announced to Internet:                     210510
Total ASes present in the Internet Routing Table:                 42342
    Prefixes per ASN:                                             10.12
Origin-only ASes present in the Internet Routing Table:           33732
Origin ASes announcing only one prefix:                           15790
Transit ASes present in the Internet Routing Table:                5626
Transit-only ASes present in the Internet Routing Table:            145
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:               833
    Unregistered ASNs in the Routing Table:                         302
Number of 32-bit ASNs allocated by the RIRs:                       3372
Number of 32-bit ASNs visible in the Routing Table:                2984
Prefixes from 32-bit ASNs in the Routing Table:                    8135
Special use prefixes present in the Routing Table:                   13
Prefixes being announced from unallocated address space:            165
Number of addresses announced to Internet:                   2605906540
    Equivalent to 155 /8s, 82 /16s and 250 /24s
    Percentage of available address space announced:               70.4
    Percentage of allocated address space announced:               70.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               93.8
Total number of prefixes smaller than registry allocations:      150110

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

Prefixes being announced by APNIC Region ASes:                   103055
    Total APNIC prefixes after maximum aggregation:               32567
    APNIC Deaggregation factor:                                    3.16
Prefixes being announced from the APNIC address blocks:          103769
    Unique aggregates announced from the APNIC address blocks:    42942
APNIC Region origin ASes present in the Internet Routing Table:    4776
    APNIC Prefixes per ASN:                                       21.73
APNIC Region origin ASes announcing only one prefix:               1247
APNIC Region transit ASes present in the Internet Routing Table:    775
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:    326
Number of APNIC addresses announced to Internet:              711102112
    Equivalent to 42 /8s, 98 /16s and 142 /24s
    Percentage of available APNIC address space announced:         83.1

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:                    154566
    Total ARIN prefixes after maximum aggregation:                78313
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           155412
    Unique aggregates announced from the ARIN address blocks:     69394
ARIN Region origin ASes present in the Internet Routing Table:    15279
    ARIN Prefixes per ASN:                                        10.17
ARIN Region origin ASes announcing only one prefix:                5782
ARIN Region transit ASes present in the Internet Routing Table:    1594
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:      17
Number of ARIN addresses announced to Internet:              1086699904
    Equivalent to 64 /8s, 197 /16s and 185 /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:                    109143
    Total RIPE prefixes after maximum aggregation:                57365
    RIPE Deaggregation factor:                                     1.90
Prefixes being announced from the RIPE address blocks:           111805
    Unique aggregates announced from the RIPE address blocks:     71908
RIPE Region origin ASes present in the Internet Routing Table:    16895
    RIPE Prefixes per ASN:                                         6.62
RIPE Region origin ASes announcing only one prefix:                8130
RIPE Region transit ASes present in the Internet Routing Table:    2723
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1941
Number of RIPE addresses announced to Internet:               648107044
    Equivalent to 38 /8s, 161 /16s and 84 /24s
    Percentage of available RIPE address space announced:          94.2

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:                   43764
    Total LACNIC prefixes after maximum aggregation:               8674
    LACNIC Deaggregation factor:                                   5.05
Prefixes being announced from the LACNIC address blocks:          47162
    Unique aggregates announced from the LACNIC address blocks:   22584
LACNIC Region origin ASes present in the Internet Routing Table:   1667
    LACNIC Prefixes per ASN:                                      28.29
LACNIC Region origin ASes announcing only one prefix:               457
LACNIC Region transit ASes present in the Internet Routing Table:   319
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:   694
Number of LACNIC addresses announced to Internet:             117535272
    Equivalent to 7 /8s, 1 /16s and 114 /24s
    Percentage of available LACNIC address space announced:        70.1

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:                   9570
    Total AfriNIC prefixes after maximum aggregation:              2236
    AfriNIC Deaggregation factor:                                  4.28
Prefixes being announced from the AfriNIC address blocks:         10042
    Unique aggregates announced from the AfriNIC address blocks:   3537
AfriNIC Region origin ASes present in the Internet Routing Table:   563
    AfriNIC Prefixes per ASN:                                     17.84
AfriNIC Region origin ASes announcing only one prefix:              174
AfriNIC Region transit ASes present in the Internet Routing Table:  125
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:             42157312
    Equivalent to 2 /8s, 131 /16s and 69 /24s
    Percentage of available AfriNIC address space announced:       41.9

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     2974      11428         902   Korea Telecom (KIX)
17974     2365        830          54   PT TELEKOMUNIKASI INDONESIA
 7545     1770        301          87   TPG Internet Pty Ltd
 4755     1626        387         163   TATA Communications formerly 
 9829     1401       1154          41   BSNL National Internet Backbo
 9583     1226         90         518   Sify Limited
 4808     1113       2060         316   CNCGROUP IP network: China169
 7552     1088       1062          14   Vietel Corporation
24560     1034        385         162   Bharti Airtel Ltd., Telemedia
 9498     1022        310          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
 6389     3203       3727         173   bellsouth.net, inc. 
 7029     3128        990         162   Windstream Communications Inc
18566     2084        382         180   Covad Communications 
 1785     1926        678         128   PaeTec Communications, Inc.
22773     1907       2931         128   Cox Communications, Inc.
20115     1655       1582         618   Charter Communications 
 4323     1586       1155         392   Time Warner Telecom
30036     1344        268         753   Mediacom Communications Corp 
 7018     1265      10304         841   AT&T WorldNet Services
 7011     1207        329         701   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     1774        544          16   Corbina telecom
 2118     1396         97          14   EUnet/RELCOM Autonomous Syste
12479      848        776          64   Uni2 Autonomous System
34984      797        206         182   BILISIM TELEKOM
31148      725         37           9   FreeNet ISP
 6830      723       2313         445   UPC Distribution Services
20940      708        224         539   Akamai Technologies European 
13188      697         92         155   Educational Network
58113      603         67         364   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     2203        379         219   TVCABLE BOGOTA 
28573     2102       1277          60   NET Servicos de Comunicao S.A
 8151     1588       3028         355   UniNet S.A. de C.V. 
 7303     1566       1035         203   Telecom Argentina Stet-France
 6503     1538        435          69   AVANTEL, S.A. 
27947      728         74          91   Telconet S.A
 3816      649        309          70   Empresa Nacional de Telecomun
11172      592         85          66   Servicios Alestra S.A de C.V 
14420      589         87         101   CORPORACION NACIONAL DE TELEC
 7738      586       1178          33   Telecomunicacoes da Bahia 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
24863      892        275          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 8452      669        958          13   TEDATA
 6713      516        650          19   Itissalat Al-MAGHRIB
24835      270         80           8   RAYA Telecom - Egypt
 3741      267        906         225   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      192         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      172        682          85   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     3203       3727         173   bellsouth.net, inc. 
 7029     3128        990         162   Windstream Communications Inc
 4766     2974      11428         902   Korea Telecom (KIX)
17974     2365        830          54   PT TELEKOMUNIKASI INDONESIA
10620     2203        379         219   TVCABLE BOGOTA 
28573     2102       1277          60   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
 1785     1926        678         128   PaeTec Communications, Inc.
22773     1907       2931         128   Cox Communications, Inc.
 8402     1774        544          16   Corbina telecom

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      3128        2966      Windstream Communications Inc
17974      2365        2311      PT TELEKOMUNIKASI INDONESIA
 4766      2974        2072      Korea Telecom (KIX)
28573      2102        2042      NET Servicos de Comunicao S.A
10620      2203        1984      TVCABLE BOGOTA 
18566      2084        1904      Covad Communications 
 1785      1926        1798      PaeTec Communications, Inc.
22773      1907        1779      Cox Communications, Inc.
 8402      1774        1758      Corbina telecom
 7545      1770        1683      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
128.0.72.0/21        23456     32-bit ASN transition
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

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      /12:242     
/13:477     /14:849     /15:1546    /16:12440   /17:6493    /18:10830   
/19:21151   /20:30404   /21:32445   /22:42915   /23:40129   /24:224184  
/25:1304    /26:1608    /27:905     /28:178     /29:65      /30:17      
/31:0       /32:25      

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

  ASN   No of nets  Total ann.   Description
 7029     2618          3128      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1797          3203      bellsouth.net, inc. 
 8402     1489          1774      Corbina telecom
30036     1272          1344      Mediacom Communications Corp 
22773     1246          1907      Cox Communications, Inc.
11492     1166          1203      Cable One 
 6503     1054          1538      AVANTEL, S.A. 
 1785     1016          1926      PaeTec Communications, Inc.
 7011      946          1207      Citizens Utilities 

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

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

   1:636       2:772       3:1         4:13        5:567       6:3      
   8:489      12:1976     13:1        14:670      15:11       16:3      
  17:6        20:27       23:202      24:1791     27:1371     31:1021   
  32:54       33:2        34:2        36:7        37:842      38:829    
  39:2        40:137      41:2764     42:158      44:3        46:1637   
  47:2        49:456      50:591      52:12       54:25       55:9      
  56:3        57:27       58:987      59:541      60:237      61:1291   
  62:937      63:1997     64:4282     65:2232     66:4531     67:2080   
  68:1157     69:3214     70:988      71:505      72:1872     74:2603   
  75:483      76:309      77:970      78:978      79:503      80:1245   
  81:970      82:629      83:536      84:522      85:1157     86:484    
  87:946      88:364      89:1848     90:304      91:5250     92:597    
  93:1501     94:1628     95:1122     96:396      97:325      98:964    
  99:39      100:29      101:269     103:1641    105:512     106:120    
 107:199     108:473     109:1592    110:804     111:963     112:444    
 113:713     114:621     115:899     116:889     117:736     118:961    
 119:1230    120:328     121:688     122:1640    123:1152    124:1334   
 125:1281    128:563     129:196     130:287     131:639     132:308    
 133:22      134:252     135:62      136:221     137:238     138:337    
 139:170     140:501     141:287     142:491     143:378     144:496    
 145:82      146:507     147:276     148:749     149:327     150:158    
 151:196     152:450     153:179     154:20      155:426     156:226    
 157:374     158:262     159:658     160:346     161:411     162:364    
 163:191     164:709     165:427     166:527     167:553     168:990    
 169:126     170:914     171:152     172:7       173:1662    174:625    
 175:449     176:778     177:1272    178:1625    180:1348    181:161    
 182:1087    183:305     184:595     185:28      186:2228    187:1323   
 188:1748    189:1595    190:5818    192:6048    193:5751    194:4611   
 195:3661    196:1231    197:234     198:3852    199:5075    200:5993   
 201:1962    202:8670    203:8703    204:4400    205:2545    206:2764   
 207:2839    208:4060    209:3632    210:2836    211:1532    212:2016   
 213:1816    214:891     215:88      216:5127    217:1563    218:571    
 219:314     220:1247    221:533     222:337     223:416    

End of report



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