Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 21 18:54:41 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 22 Dec, 2012

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

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

BGP routing table entries examined:                              438165
    Prefixes after maximum aggregation:                          180937
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     215621
Total ASes present in the Internet Routing Table:                 42906
    Prefixes per ASN:                                             10.21
Origin-only ASes present in the Internet Routing Table:           33973
Origin ASes announcing only one prefix:                           15870
Transit ASes present in the Internet Routing Table:                5700
Transit-only ASes present in the Internet Routing Table:            138
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      31
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:              1211
    Unregistered ASNs in the Routing Table:                         437
Number of 32-bit ASNs allocated by the RIRs:                       3595
Number of 32-bit ASNs visible in the Routing Table:                3233
Prefixes from 32-bit ASNs in the Routing Table:                    8730
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            175
Number of addresses announced to Internet:                   2620290828
    Equivalent to 156 /8s, 46 /16s and 119 /24s
    Percentage of available address space announced:               70.8
    Percentage of allocated address space announced:               70.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.1
Total number of prefixes smaller than registry allocations:      154819

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

Prefixes being announced by APNIC Region ASes:                   105281
    Total APNIC prefixes after maximum aggregation:               32772
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          106205
    Unique aggregates announced from the APNIC address blocks:    43419
APNIC Region origin ASes present in the Internet Routing Table:    4807
    APNIC Prefixes per ASN:                                       22.09
APNIC Region origin ASes announcing only one prefix:               1243
APNIC Region transit ASes present in the Internet Routing Table:    792
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    389
Number of APNIC addresses announced to Internet:              716469376
    Equivalent to 42 /8s, 180 /16s and 116 /24s
    Percentage of available APNIC address space announced:         83.7

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:                    156086
    Total ARIN prefixes after maximum aggregation:                78438
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           156771
    Unique aggregates announced from the ARIN address blocks:     70691
ARIN Region origin ASes present in the Internet Routing Table:    15356
    ARIN Prefixes per ASN:                                        10.21
ARIN Region origin ASes announcing only one prefix:                5800
ARIN Region transit ASes present in the Internet Routing Table:    1591
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:      18
Number of ARIN addresses announced to Internet:              1089414016
    Equivalent to 64 /8s, 239 /16s and 35 /24s
    Percentage of available ARIN address space announced:          57.6

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:                    112749
    Total RIPE prefixes after maximum aggregation:                58303
    RIPE Deaggregation factor:                                     1.93
Prefixes being announced from the RIPE address blocks:           115652
    Unique aggregates announced from the RIPE address blocks:     74554
RIPE Region origin ASes present in the Internet Routing Table:    17002
    RIPE Prefixes per ASN:                                         6.80
RIPE Region origin ASes announcing only one prefix:                8144
RIPE Region transit ASes present in the Internet Routing Table:    2761
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2091
Number of RIPE addresses announced to Internet:               650235364
    Equivalent to 38 /8s, 193 /16s and 205 /24s
    Percentage of available RIPE address space announced:          94.5

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:                   45459
    Total LACNIC prefixes after maximum aggregation:               9016
    LACNIC Deaggregation factor:                                   5.04
Prefixes being announced from the LACNIC address blocks:          49029
    Unique aggregates announced from the LACNIC address blocks:   23167
LACNIC Region origin ASes present in the Internet Routing Table:   1751
    LACNIC Prefixes per ASN:                                      28.00
LACNIC Region origin ASes announcing only one prefix:               493
LACNIC Region transit ASes present in the Internet Routing Table:   336
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        30
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   729
Number of LACNIC addresses announced to Internet:             120904232
    Equivalent to 7 /8s, 52 /16s and 218 /24s
    Percentage of available LACNIC address space announced:        72.1

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:                   9738
    Total AfriNIC prefixes after maximum aggregation:              2355
    AfriNIC Deaggregation factor:                                  4.14
Prefixes being announced from the AfriNIC address blocks:         10333
    Unique aggregates announced from the AfriNIC address blocks:   3634
AfriNIC Region origin ASes present in the Internet Routing Table:   588
    AfriNIC Prefixes per ASN:                                     17.57
AfriNIC Region origin ASes announcing only one prefix:              190
AfriNIC Region transit ASes present in the Internet Routing Table:  130
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:             42899456
    Equivalent to 2 /8s, 142 /16s and 152 /24s
    Percentage of available AfriNIC address space announced:       42.6

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     2926      11556         908   Korea Telecom (KIX)
17974     2488        829          54   PT TELEKOMUNIKASI INDONESIA
 7545     1816        301          89   TPG Internet Pty Ltd
 4755     1661        381         174   TATA Communications formerly 
 9829     1415       1156          42   BSNL National Internet Backbo
 9583     1182         88         502   Sify Limited
 7552     1148       1070          12   Vietel Corporation
 4808     1123       2040         316   CNCGROUP IP network: China169
 9498     1038        307          69   BHARTI Airtel Ltd.
24560     1037        385         161   Bharti Airtel Ltd., Telemedia

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     3473       1010         215   Windstream Communications Inc
 6389     3120       3717         132   bellsouth.net, inc. 
18566     2081        382         180   Covad Communications 
22773     1947       2932         131   Cox Communications, Inc.
 1785     1941        678         125   PaeTec Communications, Inc.
20115     1692       1608         622   Charter Communications 
 4323     1596       1155         396   Time Warner Telecom
30036     1382        292         716   Mediacom Communications Corp 
 7018     1293      10533         854   AT&T WorldNet Services
 7011     1206        321         685   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     1756        544          16   Corbina telecom
 2118     1052         97          15   EUnet/RELCOM Autonomous Syste
34984      884        211         230   BILISIM TELEKOM
12479      869        777          64   Uni2 Autonomous System
13188      765         95         121   Educational Network
31148      743         38          15   FreeNet ISP
20940      725        238         564   Akamai Technologies European 
 6830      714       2313         435   UPC Distribution Services
58113      633         70         378   LIR DATACENTER TELECOM SRL
 8551      619        367          39   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     2268        387         206   TVCABLE BOGOTA 
28573     2249       1298          69   NET Servicos de Comunicao S.A
 7303     1674       1139         202   Telecom Argentina Stet-France
 8151     1574       2970         352   UniNet S.A. de C.V. 
 6503     1453        435          67   AVANTEL, S.A. 
27947      766         85          94   Telconet S.A
18881      740        716          18   Global Village Telecom 
 3816      662        309          71   Empresa Nacional de Telecomun
11172      601         86          66   Servicios Alestra S.A de C.V 
 7738      588       1242          34   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      874        275          36   LINKdotNET AS number
36998      749         48           3   MOBITEL
 8452      557        958          13   TEDATA
 6713      485        602          20   Itissalat Al-MAGHRIB
24835      291         80           8   RAYA Telecom - Egypt
 3741      267        906         225   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      181        697          88   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
 7029     3473       1010         215   Windstream Communications Inc
 6389     3120       3717         132   bellsouth.net, inc. 
 4766     2926      11556         908   Korea Telecom (KIX)
17974     2488        829          54   PT TELEKOMUNIKASI INDONESIA
10620     2268        387         206   TVCABLE BOGOTA 
28573     2249       1298          69   NET Servicos de Comunicao S.A
18566     2081        382         180   Covad Communications 
22773     1947       2932         131   Cox Communications, Inc.
 1785     1941        678         125   PaeTec Communications, Inc.
 7545     1816        301          89   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      3120        2988      bellsouth.net, inc. 
17974      2488        2434      PT TELEKOMUNIKASI INDONESIA
28573      2249        2180      NET Servicos de Comunicao S.A
10620      2268        2062      TVCABLE BOGOTA 
 4766      2926        2018      Korea Telecom (KIX)
18566      2081        1901      Covad Communications 
22773      1947        1816      Cox Communications, Inc.
 1785      1941        1816      PaeTec Communications, Inc.
 8402      1756        1740      Corbina telecom
 7545      1816        1727      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
61309   UNALLOCATED  5.1.96.0/21          41562       Host4all Sarl
59505   UNALLOCATED  5.2.65.0/24          50673       Serverius AS
59505   UNALLOCATED  5.2.66.0/24          50673       Serverius AS
59530   UNALLOCATED  5.8.182.0/24         31261       GARS Telecom
61408   UNALLOCATED  5.56.0.0/21            174       Cogent Communication
61395   UNALLOCATED  5.83.56.0/22          3292       TDC Tele Danmark
61395   UNALLOCATED  5.83.60.0/22          3292       TDC Tele Danmark
59414   UNALLOCATED  5.102.144.0/21       15576       Nextra backbone in D
59395   UNALLOCATED  5.133.16.0/21         3549       Global Crossing 
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH

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

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

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.16.0/21        43568     RIPE Network Coordination Cen
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<<

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

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
27.112.114.0/24      23884     Proimage Engineering and Comm
41.222.80.0/21       37110     Moztel LDA
41.223.108.0/22      36966     >>UNKNOWN<<
62.12.96.0/19        38478     SunnyVision Limited
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.66.32.0/20        18864     >>UNKNOWN<<
64.185.224.0/24      27431     JTL Networks Inc.
64.185.225.0/24      27431     JTL Networks Inc.
64.185.226.0/24      27431     JTL Networks Inc.

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       /9:13      /10:29      /11:87      /12:244     
/13:477     /14:858     /15:1544    /16:12488   /17:6566    /18:10963   
/19:21629   /20:30998   /21:33005   /22:44366   /23:40789   /24:229935  
/25:1310    /26:1688    /27:856     /28:182     /29:81      /30:17      
/31:0       /32:22      

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

  ASN   No of nets  Total ann.   Description
 7029     2728          3473      Windstream Communications Inc
18566     2031          2081      Covad Communications 
 6389     1775          3120      bellsouth.net, inc. 
 8402     1481          1756      Corbina telecom
30036     1285          1382      Mediacom Communications Corp 
22773     1279          1947      Cox Communications, Inc.
11492     1156          1193      Cable One 
 1785     1023          1941      PaeTec Communications, Inc.
 6503      980          1453      AVANTEL, S.A. 
 7011      954          1206      Citizens Utilities 

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

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

   1:694       2:718       3:3         4:13        5:697       6:3      
   8:488      12:1934     13:3        14:701      15:11       16:3      
  17:6        20:27       23:220      24:1794     27:1466     31:1339   
  32:54       33:2        34:2        36:11       37:1140     38:844    
  39:2        40:142      41:2654     42:179      44:3        46:1717   
  47:3        49:509      50:652      52:12       54:28       55:8      
  56:1        57:28       58:1068     59:558      60:237      61:1306   
  62:1037     63:2019     64:4354     65:2201     66:4497     67:2084   
  68:1202     69:3334     70:937      71:557      72:1895     74:2626   
  75:476      76:293      77:1037     78:1025     79:519      80:1207   
  81:980      82:643      83:536      84:531      85:1158     86:458    
  87:970      88:354      89:1756     90:304      91:5376     92:610    
  93:1625     94:1971     95:1610     96:487      97:338      98:969    
  99:40      100:31      101:287     103:1964    105:501     106:117    
 107:203     108:508     109:1738    110:833     111:980     112:459    
 113:744     114:643     115:904     116:891     117:778     118:966    
 119:1266    120:375     121:708     122:1730    123:1173    124:1320   
 125:1296    128:808     129:200     130:304     131:643     132:316    
 133:142     134:255     135:62      136:215     137:235     138:344    
 139:169     140:182     141:300     142:514     143:351     144:488    
 145:89      146:517     147:324     148:728     149:334     150:147    
 151:239     152:399     153:187     154:23      155:444     156:231    
 157:381     158:257     159:685     160:334     161:416     162:371    
 163:192     164:577     165:457     166:475     167:570     168:1003   
 169:133     170:1008    171:164     172:4       173:1654    174:628    
 175:464     176:879     177:1484    178:1742    180:1357    181:189    
 182:1116    183:294     184:633     185:135     186:2145    187:1432   
 188:1889    189:1570    190:6187    192:6085    193:5711    194:4490   
 195:3596    196:1247    197:291     198:4007    199:5153    200:6046   
 201:2027    202:8858    203:8744    204:4479    205:2556    206:2827   
 207:2828    208:4067    209:3655    210:2905    211:1548    212:2108   
 213:1875    214:862     215:90      216:5186    217:1552    218:595    
 219:321     220:1259    221:543     222:324     223:374    

End of report



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