Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 5 18:51:50 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 06 Oct, 2012

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

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

BGP routing table entries examined:                              427627
    Prefixes after maximum aggregation:                          178902
    Deaggregation factor:                                          2.39
    Unique aggregates announced to Internet:                     210176
Total ASes present in the Internet Routing Table:                 42285
    Prefixes per ASN:                                             10.11
Origin-only ASes present in the Internet Routing Table:           33697
Origin ASes announcing only one prefix:                           15772
Transit ASes present in the Internet Routing Table:                5625
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:               789
    Unregistered ASNs in the Routing Table:                         291
Number of 32-bit ASNs allocated by the RIRs:                       3352
Number of 32-bit ASNs visible in the Routing Table:                2963
Prefixes from 32-bit ASNs in the Routing Table:                    8030
Special use prefixes present in the Routing Table:                   12
Prefixes being announced from unallocated address space:            150
Number of addresses announced to Internet:                   2604413548
    Equivalent to 155 /8s, 60 /16s and 50 /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:      149866

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

Prefixes being announced by APNIC Region ASes:                   102911
    Total APNIC prefixes after maximum aggregation:               32526
    APNIC Deaggregation factor:                                    3.16
Prefixes being announced from the APNIC address blocks:          103613
    Unique aggregates announced from the APNIC address blocks:    42879
APNIC Region origin ASes present in the Internet Routing Table:    4770
    APNIC Prefixes per ASN:                                       21.72
APNIC Region origin ASes announcing only one prefix:               1242
APNIC Region transit ASes present in the Internet Routing Table:    777
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:    323
Number of APNIC addresses announced to Internet:              710790048
    Equivalent to 42 /8s, 93 /16s and 203 /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:                    154470
    Total ARIN prefixes after maximum aggregation:                78240
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           155372
    Unique aggregates announced from the ARIN address blocks:     69352
ARIN Region origin ASes present in the Internet Routing Table:    15256
    ARIN Prefixes per ASN:                                        10.18
ARIN Region origin ASes announcing only one prefix:                5767
ARIN Region transit ASes present in the Internet Routing Table:    1596
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:              1086601856
    Equivalent to 64 /8s, 196 /16s and 58 /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:                    108678
    Total RIPE prefixes after maximum aggregation:                57231
    RIPE Deaggregation factor:                                     1.90
Prefixes being announced from the RIPE address blocks:           111305
    Unique aggregates announced from the RIPE address blocks:     71705
RIPE Region origin ASes present in the Internet Routing Table:    16893
    RIPE Prefixes per ASN:                                         6.59
RIPE Region origin ASes announcing only one prefix:                8136
RIPE Region transit ASes present in the Internet Routing Table:    2722
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:    1925
Number of RIPE addresses announced to Internet:               647652644
    Equivalent to 38 /8s, 154 /16s and 101 /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:                   43672
    Total LACNIC prefixes after maximum aggregation:               8610
    LACNIC Deaggregation factor:                                   5.07
Prefixes being announced from the LACNIC address blocks:          46973
    Unique aggregates announced from the LACNIC address blocks:   22575
LACNIC Region origin ASes present in the Internet Routing Table:   1661
    LACNIC Prefixes per ASN:                                      28.28
LACNIC Region origin ASes announcing only one prefix:               453
LACNIC Region transit ASes present in the Internet Routing Table:   317
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:   692
Number of LACNIC addresses announced to Internet:             117172520
    Equivalent to 6 /8s, 251 /16s and 233 /24s
    Percentage of available LACNIC address space announced:        69.8

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:                   9742
    Total AfriNIC prefixes after maximum aggregation:              2237
    AfriNIC Deaggregation factor:                                  4.35
Prefixes being announced from the AfriNIC address blocks:         10214
    Unique aggregates announced from the AfriNIC address blocks:   3532
AfriNIC Region origin ASes present in the Internet Routing Table:   563
    AfriNIC Prefixes per ASN:                                     18.14
AfriNIC Region origin ASes announcing only one prefix:              174
AfriNIC Region transit ASes present in the Internet Routing Table:  126
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:             41908992
    Equivalent to 2 /8s, 127 /16s and 123 /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     2972      11428         904   Korea Telecom (KIX)
17974     2362        830          54   PT TELEKOMUNIKASI INDONESIA
 7545     1764        301          86   TPG Internet Pty Ltd
 4755     1626        387         163   TATA Communications formerly 
 9829     1396       1154          41   BSNL National Internet Backbo
 9583     1223         90         517   Sify Limited
 4808     1122       2046         317   CNCGROUP IP network: China169
 7552     1064       1062          11   Vietel Corporation
24560     1034        385         162   Bharti Airtel Ltd., Telemedia
 9498     1018        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     3234       3728         174   bellsouth.net, inc. 
 7029     3166        990         161   Windstream Communications Inc
18566     2084        382         180   Covad Communications 
 1785     1924        678         128   PaeTec Communications, Inc.
22773     1903       2931         128   Cox Communications, Inc.
20115     1656       1582         618   Charter Communications 
 4323     1577       1154         387   Time Warner Telecom
30036     1349        270         757   Mediacom Communications Corp 
 7018     1267      10304         842   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     1734        544          16   Corbina telecom
 2118     1399         97          14   EUnet/RELCOM Autonomous Syste
12479      847        776          68   Uni2 Autonomous System
34984      793        206         180   BILISIM TELEKOM
31148      722         37           9   FreeNet ISP
 6830      721       2313         445   UPC Distribution Services
20940      700        222         532   Akamai Technologies European 
13188      698         92         147   Educational Network
58113      631         70         366   LIR DATACENTER TELECOM SRL
 8551      576        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     2200        379         222   TVCABLE BOGOTA 
28573     2122       1269          58   NET Servicos de Comunicao S.A
 8151     1594       3047         354   UniNet S.A. de C.V. 
 7303     1566       1035         202   Telecom Argentina Stet-France
 6503     1538        435          69   AVANTEL, S.A. 
27947      724         74          91   Telconet S.A
 3816      643        309          70   Empresa Nacional de Telecomun
11172      594        101          67   Servicios Alestra S.A de C.V 
14420      589         87         101   CORPORACION NACIONAL DE TELEC
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
24863      891        275          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 8452      714        958          13   TEDATA
 6713      517        650          19   Itissalat Al-MAGHRIB
24835      269         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     3234       3728         174   bellsouth.net, inc. 
 7029     3166        990         161   Windstream Communications Inc
 4766     2972      11428         904   Korea Telecom (KIX)
17974     2362        830          54   PT TELEKOMUNIKASI INDONESIA
10620     2200        379         222   TVCABLE BOGOTA 
28573     2122       1269          58   NET Servicos de Comunicao S.A
18566     2084        382         180   Covad Communications 
 1785     1924        678         128   PaeTec Communications, Inc.
22773     1903       2931         128   Cox Communications, Inc.
 7545     1764        301          86   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      3166        3005      Windstream Communications Inc
17974      2362        2308      PT TELEKOMUNIKASI INDONESIA
 4766      2972        2068      Korea Telecom (KIX)
28573      2122        2064      NET Servicos de Comunicao S.A
10620      2200        1978      TVCABLE BOGOTA 
18566      2084        1904      Covad Communications 
 1785      1924        1796      PaeTec Communications, Inc.
22773      1903        1775      Cox Communications, Inc.
 8402      1734        1718      Corbina telecom
 7545      1764        1678      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      /12:241     
/13:477     /14:846     /15:1541    /16:12439   /17:6488    /18:10864   
/19:21105   /20:30363   /21:32352   /22:42772   /23:40053   /24:223715  
/25:1354    /26:1670    /27:912     /28:181     /29:65      /30:17      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
 7029     2649          3166      Windstream Communications Inc
18566     2034          2084      Covad Communications 
 6389     1802          3234      bellsouth.net, inc. 
 8402     1448          1734      Corbina telecom
30036     1281          1349      Mediacom Communications Corp 
22773     1244          1903      Cox Communications, Inc.
11492     1164          1201      Cable One 
 6503     1054          1538      AVANTEL, S.A. 
 1785     1016          1924      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)
----------------------------------------------

   1:627       2:711       3:1         4:13        5:553       6:3      
   8:467      12:1975     13:1        14:670      15:11       16:3      
  17:6        20:27       23:201      24:1784     27:1367     31:1022   
  32:54       33:2        34:2        36:7        37:838      38:829    
  39:2        40:133      41:2928     42:158      44:3        46:1612   
  47:2        49:459      50:593      52:12       54:22       55:8      
  56:3        57:27       58:988      59:542      60:238      61:1288   
  62:939      63:1997     64:4282     65:2234     66:4512     67:2107   
  68:1170     69:3222     70:986      71:514      72:1875     74:2600   
  75:484      76:305      77:967      78:977      79:469      80:1242   
  81:968      82:635      83:537      84:520      85:1159     86:486    
  87:929      88:364      89:1801     90:303      91:5235     92:593    
  93:1520     94:1623     95:1098     96:395      97:325      98:963    
  99:39      100:24      101:264     103:1631    105:512     106:120    
 107:199     108:466     109:1559    110:803     111:956     112:445    
 113:711     114:622     115:893     116:888     117:733     118:956    
 119:1226    120:341     121:688     122:1635    123:1165    124:1332   
 125:1281    128:562     129:192     130:282     131:635     132:303    
 133:22      134:251     135:62      136:220     137:239     138:338    
 139:171     140:498     141:282     142:490     143:385     144:490    
 145:85      146:518     147:276     148:748     149:326     150:160    
 151:195     152:451     153:178     154:20      155:422     156:225    
 157:374     158:258     159:660     160:345     161:410     162:366    
 163:191     164:698     165:425     166:526     167:554     168:987    
 169:127     170:911     171:149     172:7       173:1676    174:621    
 175:446     176:777     177:1258    178:1613    180:1344    181:149    
 182:1062    183:297     184:608     185:23      186:2187    187:1286   
 188:1718    189:1589    190:5805    192:6036    193:5729    194:4614   
 195:3660    196:1229    197:228     198:3829    199:5054    200:6002   
 201:1962    202:8658    203:8719    204:4400    205:2532    206:2766   
 207:2834    208:4045    209:3638    210:2848    211:1530    212:2013   
 213:1812    214:881     215:87      216:5125    217:1573    218:572    
 219:313     220:1250    221:534     222:337     223:415    

End of report



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